Built 2026-10-14 (14 October 2026)

Armagh Weather Records (UK000047811)

Record envelope, standing records and threshold days for Armagh (UK000047811), United Kingdom, with 189 years of record.

Key Facts for Armagh

  • Armagh (UK000047811) is a weather station in United Kingdom at 54.35 latitude and -6.65 longitude, 62 m (203 ft) above sea level.
  • The station reports from 1838 to 2026, 189 years of record.
  • 1,464 records set at Armagh still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Armagh tied a daily record high minimum temperature of 15.6 C (60.1 F) on 28 August 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: United Kingdom, 54.35 latitude, -6.65 longitude.
  • Elevation: 62 m (203 ft).
  • Period of record: 1838 to 2026, 189 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

6 days at or beyond a record
Daily record high and record low at Armagh, with 2026 drawn through them The band shows the record high and record low for each calendar day at Armagh. The lines show the 2026 daily maximum and minimum. 6 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -20-10010203040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Armagh. The lines show the 2026 daily maximum and minimum. 6 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Armagh, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan15.7 C (60.3 F)-14.3 C (6.3 F)11.7 C (53.1 F)-3.1 C (26.4 F)
Feb17.0 C (62.6 F)-15.1 C (4.8 F)13.3 C (55.9 F)-2.1 C (28.2 F)
Mar21.8 C (71.2 F)-12.4 C (9.7 F)17.3 C (63.1 F)-1.2 C (29.8 F)
Apr23.1 C (73.6 F)-7.1 C (19.2 F)20.4 C (68.7 F)0.4 C (32.7 F)
May26.3 C (79.3 F)-2.3 C (27.9 F)26.3 C (79.3 F)0.2 C (32.4 F)
Jun30.4 C (86.7 F)0.0 C (32.0 F)29.8 C (85.6 F)6.7 C (44.1 F)
Jul31.3 C (88.3 F)0.0 C (32.0 F)27.6 C (81.7 F)8.9 C (48.0 F)
Aug29.4 C (84.9 F)2.0 C (35.6 F)27.5 C (81.5 F)5.2 C (41.4 F)
Sep27.9 C (82.2 F)-0.6 C (30.9 F)n/an/a
Oct22.7 C (72.9 F)-5.6 C (21.9 F)n/an/a
Nov17.3 C (63.1 F)-8.3 C (17.1 F)n/an/a
Dec18.2 C (64.8 F)-14.6 C (5.7 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Armagh by the year they were set 1,464 records at Armagh still stand. 1892 holds the most, with 30. 01020301844: 31845: 81846: 111847: 61848: 61849: 41850: 61851: 41852: 11853: 31854: 31855: 101856: 31857: 11858: 11859: 121860: 71861: 71862: 41863: 51864: 51865: 11866: 21867: 171868: 61869: 71870: 21871: 31872: 51873: 21874: 41875: 11876: 11877: 21878: 111879: 151880: 81881: 121882: 111883: 31884: 11885: 61886: 61887: 71888: 181889: 51890: 21891: 71892: 301893: 31894: 101895: 231896: 101897: 61898: 171899: 71900: 41901: 51902: 141903: 51904: 51905: 81906: 161907: 111908: 111909: 81910: 21911: 71912: 171913: 11914: 41915: 121916: 51917: 141918: 101919: 111920: 41921: 131922: 91923: 71924: 71925: 11926: 81927: 91928: 61929: 111930: 21931: 41932: 91933: 21934: 121936: 51937: 41938: 91939: 101940: 21941: 81942: 81943: 61944: 21945: 201946: 101947: 221948: 161949: 61950: 31951: 31952: 131953: 101954: 71955: 161956: 51957: 111958: 21959: 161960: 21961: 71962: 111963: 71964: 51965: 51966: 91968: 41969: 91970: 51971: 61972: 61973: 51974: 31975: 101976: 101977: 81978: 51979: 111980: 41981: 31982: 101983: 81984: 71985: 51986: 101987: 81988: 61989: 161990: 101991: 51992: 51993: 101994: 81995: 151996: 91997: 111998: 231999: 62000: 72001: 72002: 72003: 62004: 72005: 122006: 112007: 122008: 82009: 32010: 232011: 92012: 72013: 122014: 62015: 122016: 62017: 72018: 132019: 102020: 112021: 212022: 152023: 172024: 102025: 182026: 111844186318821901192019401959197919982017
1,464 records at Armagh still stand. 1892 holds the most, with 30.
Standing records at Armagh by the year they were set
Year setStanding records
18443
18458
184611
18476
18486
18494
18506
18514
18521
18533
18543
185510
18563
18571
18581
185912
18607
18617
18624
18635
18645
18651
18662
186717
18686
18697
18702
18713
18725
18732
18744
18751
18761
18772
187811
187915
18808
188112
188211
18833
18841
18856
18866
18877
188818
18895
18902
18917
189230
18933
189410
189523
189610
18976
189817
18997
19004
19015
190214
19035
19045
19058
190616
190711
190811
19098
19102
19117
191217
19131
19144
191512
19165
191714
191810
191911
19204
192113
19229
19237
19247
19251
19268
19279
19286
192911
19302
19314
19329
19332
193412
19365
19374
19389
193910
19402
19418
19428
19436
19442
194520
194610
194722
194816
19496
19503
19513
195213
195310
19547
195516
19565
195711
19582
195916
19602
19617
196211
19637
19645
19655
19669
19684
19699
19705
19716
19726
19735
19743
197510
197610
19778
19785
197911
19804
19813
198210
19838
19847
19855
198610
19878
19886
198916
199010
19915
19925
199310
19948
199515
19969
199711
199823
19996
20007
20017
20027
20036
20047
200512
200611
200712
20088
20093
201023
20119
20127
201312
20146
201512
20166
20177
201813
201910
202011
202121
202215
202317
202410
202518
202611

All-Time Record Progression

15 new records
When Armagh set new all-time records 15 all-time records were set at Armagh between 24 December 1878 and 21 July 2021. Each dot is a new record. Record low minimum temperatureRecord daily precipitationRecord high minimum temperatureRecord high maximum temperatureRecord low maximum temperature24 December 1878: Record low minimum temperature -13.7 C (7.3 F)25 December 1878: Record low minimum temperature -14.6 C (5.7 F)27 June 1888: Record daily precipitation 56.6 mm (2.2 in)7 February 1895: Record low minimum temperature -15.1 C (4.8 F)25 August 1905: Record daily precipitation 67.1 mm (2.6 in)9 July 1921: Record high minimum temperature 19.2 C (66.6 F)10 July 1921: Record high maximum temperature 29.4 C (84.9 F)10 July 1934: Record high maximum temperature 30.3 C (86.5 F)21 November 1969: Record daily precipitation 77.3 mm (3.0 in)15 August 1970: Record daily precipitation 78.3 mm (3.1 in)10 February 2009: Record daily precipitation 83.0 mm (3.3 in)20 December 2010: Record low maximum temperature -8.0 C (17.6 F)26 June 2018: Record high maximum temperature 30.4 C (86.7 F)20 July 2021: Record high maximum temperature 30.5 C (86.9 F)21 July 2021: Record high maximum temperature 31.3 C (88.3 F)18801900192019401960198020002020
15 all-time records were set at Armagh between 24 December 1878 and 21 July 2021. Each dot is a new record.
When Armagh set new all-time records
DateKindDetail
1878-12-24Record low minimum temperatureRecord low minimum temperature -13.7 C (7.3 F)
1878-12-25Record low minimum temperatureRecord low minimum temperature -14.6 C (5.7 F)
1888-06-27Record daily precipitationRecord daily precipitation 56.6 mm (2.2 in)
1895-02-07Record low minimum temperatureRecord low minimum temperature -15.1 C (4.8 F)
1905-08-25Record daily precipitationRecord daily precipitation 67.1 mm (2.6 in)
1921-07-09Record high minimum temperatureRecord high minimum temperature 19.2 C (66.6 F)
1921-07-10Record high maximum temperatureRecord high maximum temperature 29.4 C (84.9 F)
1934-07-10Record high maximum temperatureRecord high maximum temperature 30.3 C (86.5 F)
1969-11-21Record daily precipitationRecord daily precipitation 77.3 mm (3.0 in)
1970-08-15Record daily precipitationRecord daily precipitation 78.3 mm (3.1 in)
2009-02-10Record daily precipitationRecord daily precipitation 83.0 mm (3.3 in)
2010-12-20Record low maximum temperatureRecord low maximum temperature -8.0 C (17.6 F)
2018-06-26Record high maximum temperatureRecord high maximum temperature 30.4 C (86.7 F)
2021-07-20Record high maximum temperatureRecord high maximum temperature 30.5 C (86.9 F)
2021-07-21Record high maximum temperatureRecord high maximum temperature 31.3 C (88.3 F)

Wettest Day of Each Month

Feb: 83.0 mm (3.3 in)
Record daily precipitation for each month at Armagh The wettest day on record for each calendar month at Armagh. The most was 83.0 mm (3.3 in) on 10 February 2009. 0255075100 Jan: 35.3 mm (1.4 in), 8 January 1854 Jan Feb: 83.0 mm (3.3 in), 10 February 2009 Feb Mar: 80.0 mm (3.1 in), 9 March 2009 Mar Apr: 63.0 mm (2.5 in), 24 April 2009 Apr May: 63.0 mm (2.5 in), 9 May 2009 May Jun: 61.0 mm (2.4 in), 17 June 2009 Jun Jul: 62.0 mm (2.4 in), 8 July 2009 Jul Aug: 78.3 mm (3.1 in), 15 August 1970 Aug Sep: 47.8 mm (1.9 in), 3 September 2022 Sep Oct: 55.4 mm (2.2 in), 5 October 1929 Oct Nov: 77.3 mm (3.0 in), 21 November 1969 Nov Dec: 40.9 mm (1.6 in), 17 December 1958 Dec
The wettest day on record for each calendar month at Armagh. The most was 83.0 mm (3.3 in) on 10 February 2009.
Record daily precipitation for each month at Armagh
MonthRecord daily precipitation (mm)Date
Jan35.3 mm (1.4 in)8 January 1854
Feb83.0 mm (3.3 in)10 February 2009
Mar80.0 mm (3.1 in)9 March 2009
Apr63.0 mm (2.5 in)24 April 2009
May63.0 mm (2.5 in)9 May 2009
Jun61.0 mm (2.4 in)17 June 2009
Jul62.0 mm (2.4 in)8 July 2009
Aug78.3 mm (3.1 in)15 August 1970
Sep47.8 mm (1.9 in)3 September 2022
Oct55.4 mm (2.2 in)5 October 1929
Nov77.3 mm (3.0 in)21 November 1969
Dec40.9 mm (1.6 in)17 December 1958

Period of Record Coverage

1844 to 2026
Days with data per year at Armagh 183 years of record at Armagh, 1844 to 2026. 1 years have data for under 90 percent of days and are left out of rankings: 2026. 1844: 364 of 366 days1845: 365 of 365 days1846: 364 of 365 days1847: 360 of 365 days1848: 363 of 366 days1849: 364 of 365 days1850: 362 of 365 days1851: 364 of 365 days1852: 363 of 366 days1853: 365 of 365 days1854: 363 of 365 days1855: 365 of 365 days1856: 366 of 366 days1857: 365 of 365 days1858: 365 of 365 days1859: 364 of 365 days1860: 365 of 366 days1861: 363 of 365 days1862: 361 of 365 days1863: 360 of 365 days1864: 366 of 366 days1865: 365 of 365 days1866: 365 of 365 days1867: 363 of 365 days1868: 366 of 366 days1869: 365 of 365 days1870: 363 of 365 days1871: 365 of 365 days1872: 366 of 366 days1873: 364 of 365 days1874: 364 of 365 days1875: 364 of 365 days1876: 362 of 366 days1877: 365 of 365 days1878: 365 of 365 days1879: 365 of 365 days1880: 366 of 366 days1881: 363 of 365 days1882: 364 of 365 days1883: 365 of 365 days1884: 366 of 366 days1885: 365 of 365 days1886: 365 of 365 days1887: 365 of 365 days1888: 366 of 366 days1889: 365 of 365 days1890: 365 of 365 days1891: 365 of 365 days1892: 366 of 366 days1893: 365 of 365 days1894: 365 of 365 days1895: 365 of 365 days1896: 366 of 366 days1897: 365 of 365 days1898: 365 of 365 days1899: 365 of 365 days1900: 365 of 365 days1901: 365 of 365 days1902: 365 of 365 days1903: 365 of 365 days1904: 366 of 366 days1905: 365 of 365 days1906: 365 of 365 days1907: 365 of 365 days1908: 366 of 366 days1909: 365 of 365 days1910: 365 of 365 days1911: 365 of 365 days1912: 366 of 366 days1913: 365 of 365 days1914: 365 of 365 days1915: 365 of 365 days1916: 366 of 366 days1917: 365 of 365 days1918: 365 of 365 days1919: 365 of 365 days1920: 366 of 366 days1921: 365 of 365 days1922: 365 of 365 days1923: 365 of 365 days1924: 366 of 366 days1925: 365 of 365 days1926: 365 of 365 days1927: 365 of 365 days1928: 366 of 366 days1929: 365 of 365 days1930: 365 of 365 days1931: 365 of 365 days1932: 366 of 366 days1933: 365 of 365 days1934: 365 of 365 days1935: 365 of 365 days1936: 366 of 366 days1937: 365 of 365 days1938: 365 of 365 days1939: 364 of 365 days1940: 365 of 366 days1941: 365 of 365 days1942: 365 of 365 days1943: 365 of 365 days1944: 366 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 365 of 366 days1949: 365 of 365 days1950: 365 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 364 of 365 days1954: 365 of 365 days1955: 365 of 365 days1956: 366 of 366 days1957: 365 of 365 days1958: 365 of 365 days1959: 364 of 365 days1960: 364 of 366 days1961: 364 of 365 days1962: 361 of 365 days1963: 364 of 365 days1964: 364 of 366 days1965: 365 of 365 days1966: 362 of 365 days1967: 362 of 365 days1968: 365 of 366 days1969: 361 of 365 days1970: 362 of 365 days1971: 361 of 365 days1972: 366 of 366 days1973: 363 of 365 days1974: 364 of 365 days1975: 363 of 365 days1976: 360 of 366 days1977: 360 of 365 days1978: 362 of 365 days1979: 362 of 365 days1980: 361 of 366 days1981: 363 of 365 days1982: 360 of 365 days1983: 360 of 365 days1984: 362 of 366 days1985: 362 of 365 days1986: 362 of 365 days1987: 361 of 365 days1988: 365 of 366 days1989: 361 of 365 days1990: 361 of 365 days1991: 362 of 365 days1992: 361 of 366 days1993: 363 of 365 days1994: 362 of 365 days1995: 357 of 365 days1996: 361 of 366 days1997: 360 of 365 days1998: 359 of 365 days1999: 362 of 365 days2000: 366 of 366 days2001: 361 of 365 days2002: 364 of 365 days2003: 359 of 365 days2004: 362 of 366 days2005: 352 of 365 days2006: 361 of 365 days2007: 361 of 365 days2008: 360 of 366 days2009: 331 of 365 days2010: 362 of 365 days2011: 358 of 365 days2012: 362 of 366 days2013: 360 of 365 days2014: 363 of 365 days2015: 359 of 365 days2016: 363 of 366 days2017: 359 of 365 days2018: 358 of 365 days2019: 360 of 365 days2020: 361 of 366 days2021: 360 of 365 days2022: 362 of 365 days2023: 358 of 365 days2024: 355 of 366 days2025: 360 of 365 days2026: 239 of 365 days18501875190019251950197520002025
183 years of record at Armagh, 1844 to 2026. 1 years have data for under 90 percent of days and are left out of rankings: 2026.
Days with data per year at Armagh
YearDays with dataShare of yearComplete
184436499%Yes
1845365100%Yes
1846364100%Yes
184736099%Yes
184836399%Yes
1849364100%Yes
185036299%Yes
1851364100%Yes
185236399%Yes
1853365100%Yes
185436399%Yes
1855365100%Yes
1856366100%Yes
1857365100%Yes
1858365100%Yes
1859364100%Yes
1860365100%Yes
186136399%Yes
186236199%Yes
186336099%Yes
1864366100%Yes
1865365100%Yes
1866365100%Yes
186736399%Yes
1868366100%Yes
1869365100%Yes
187036399%Yes
1871365100%Yes
1872366100%Yes
1873364100%Yes
1874364100%Yes
1875364100%Yes
187636299%Yes
1877365100%Yes
1878365100%Yes
1879365100%Yes
1880366100%Yes
188136399%Yes
1882364100%Yes
1883365100%Yes
1884366100%Yes
1885365100%Yes
1886365100%Yes
1887365100%Yes
1888366100%Yes
1889365100%Yes
1890365100%Yes
1891365100%Yes
1892366100%Yes
1893365100%Yes
1894365100%Yes
1895365100%Yes
1896366100%Yes
1897365100%Yes
1898365100%Yes
1899365100%Yes
1900365100%Yes
1901365100%Yes
1902365100%Yes
1903365100%Yes
1904366100%Yes
1905365100%Yes
1906365100%Yes
1907365100%Yes
1908366100%Yes
1909365100%Yes
1910365100%Yes
1911365100%Yes
1912366100%Yes
1913365100%Yes
1914365100%Yes
1915365100%Yes
1916366100%Yes
1917365100%Yes
1918365100%Yes
1919365100%Yes
1920366100%Yes
1921365100%Yes
1922365100%Yes
1923365100%Yes
1924366100%Yes
1925365100%Yes
1926365100%Yes
1927365100%Yes
1928366100%Yes
1929365100%Yes
1930365100%Yes
1931365100%Yes
1932366100%Yes
1933365100%Yes
1934365100%Yes
1935365100%Yes
1936366100%Yes
1937365100%Yes
1938365100%Yes
1939364100%Yes
1940365100%Yes
1941365100%Yes
1942365100%Yes
1943365100%Yes
1944366100%Yes
1945365100%Yes
1946365100%Yes
1947365100%Yes
1948365100%Yes
1949365100%Yes
1950365100%Yes
1951365100%Yes
1952366100%Yes
1953364100%Yes
1954365100%Yes
1955365100%Yes
1956366100%Yes
1957365100%Yes
1958365100%Yes
1959364100%Yes
196036499%Yes
1961364100%Yes
196236199%Yes
1963364100%Yes
196436499%Yes
1965365100%Yes
196636299%Yes
196736299%Yes
1968365100%Yes
196936199%Yes
197036299%Yes
197136199%Yes
1972366100%Yes
197336399%Yes
1974364100%Yes
197536399%Yes
197636098%Yes
197736099%Yes
197836299%Yes
197936299%Yes
198036199%Yes
198136399%Yes
198236099%Yes
198336099%Yes
198436299%Yes
198536299%Yes
198636299%Yes
198736199%Yes
1988365100%Yes
198936199%Yes
199036199%Yes
199136299%Yes
199236199%Yes
199336399%Yes
199436299%Yes
199535798%Yes
199636199%Yes
199736099%Yes
199835998%Yes
199936299%Yes
2000366100%Yes
200136199%Yes
2002364100%Yes
200335998%Yes
200436299%Yes
200535296%Yes
200636199%Yes
200736199%Yes
200836098%Yes
200933191%Yes
201036299%Yes
201135898%Yes
201236299%Yes
201336099%Yes
201436399%Yes
201535998%Yes
201636399%Yes
201735998%Yes
201835898%Yes
201936099%Yes
202036199%Yes
202136099%Yes
202236299%Yes
202335898%Yes
202435597%Yes
202536099%Yes
202623965%No

Latest Records

20
Latest records at Armagh
DateStationRecordValueBeat old record byOld record stoodSignificance
28 August 2026Armagh, GBdaily high min (Tie, Provisional)15.6 C (60.1 F)tie120 years10 of 100 (Routine)
13 August 2026Armagh, GBdaily high min17.6 C (63.7 F)0.5 C (0.9 F)28 years20 of 100 (Routine)
15 July 2026Armagh, GBdaily high max27.6 C (81.7 F)0.2 C (0.4 F)36 years21 of 100 (Routine)
14 July 2026Armagh, GBdaily high max27.4 C (81.3 F)0.2 C (0.4 F)100 years40 of 100 (Notable)
27 June 2026Armagh, GBmonthly high min17.7 C (63.9 F)0.3 C (0.5 F)0 years21 of 100 (Routine)
26 June 2026Armagh, GBdaily high min15.9 C (60.6 F)0.3 C (0.5 F)15 years15 of 100 (Routine)
24 June 2026Armagh, GBdaily high max29.8 C (85.6 F)3.0 C (5.4 F)8 years21 of 100 (Routine)
22 June 2026Armagh, GBdaily high max28.0 C (82.4 F)2.3 C (4.1 F)76 years40 of 100 (Notable)
28 May 2026Armagh, GBdaily high min13.3 C (55.9 F)0.4 C (0.7 F)8 years13 of 100 (Routine)
24 May 2026Armagh, GBmonthly high max26.3 C (79.3 F)0.1 C (0.2 F)37 years31 of 100 (Routine)
22 May 2026Armagh, GBdaily high min13.0 C (55.4 F)0.2 C (0.4 F)108 years40 of 100 (Notable)
24 March 2026Armagh, GBdaily rain22.3 mm (0.9 in)1.8 mm (0.07 in)159 years20 of 100 (Routine)
19 March 2026Armagh, GBdaily high max15.9 C (60.6 F)0.2 C (0.4 F)20 years16 of 100 (Routine)
26 January 2026Armagh, GBdaily rain34.7 mm (1.4 in)13.1 mm (0.5 in)99 years70 of 100 (Major)
8 December 2025Armagh, GBdaily high max14.7 C (58.5 F)0.9 C (1.6 F)124 years42 of 100 (Notable)
7 December 2025Armagh, GBdaily high max14.5 C (58.1 F)0.4 C (0.7 F)168 years41 of 100 (Notable)
26 November 2025Armagh, GBdaily high max14.4 C (57.9 F)0.5 C (0.9 F)161 years41 of 100 (Notable)
5 November 2025Armagh, GBdaily high max17.2 C (63.0 F)0.4 C (0.7 F)0 years11 of 100 (Routine)
11 July 2025Armagh, GBdaily high max29.2 C (84.6 F)0.4 C (0.7 F)91 years38 of 100 (Notable)
30 June 2025Armagh, GBmonthly high min17.4 C (63.3 F)0.1 C (0.2 F)2 years20 of 100 (Routine)

Climate Trend

181 complete years, 1844 to 2025
Annual mean temperature at Armagh as warming stripes, 1844 to 2025 One stripe for each of 181 complete years at Armagh, 1844 to 2025. Blue stripes are years cooler than the station's own mean of 9.3 C (48.7 F); red stripes are warmer. The coolest year was 1879, at 7.3 C (45.2 F), and the warmest was 2023, at 11.0 C (51.8 F). The strongest colour marks a difference of 2.0 C (3.6 F). 1844: 9.2 C, -0.1 C from the station mean1845: 9.0 C, -0.3 C from the station mean1846: 10.4 C, +1.1 C from the station mean1847: 9.6 C, +0.3 C from the station mean1848: 9.2 C, -0.1 C from the station mean1849: 9.4 C, +0.1 C from the station mean1850: 9.7 C, +0.4 C from the station mean1851: 9.5 C, +0.3 C from the station mean1852: 9.6 C, +0.3 C from the station mean1853: 8.7 C, -0.5 C from the station mean1854: 9.4 C, +0.1 C from the station mean1855: 8.7 C, -0.6 C from the station mean1856: 9.5 C, +0.2 C from the station mean1857: 10.3 C, +1.0 C from the station mean1858: 9.6 C, +0.3 C from the station mean1859: 9.7 C, +0.4 C from the station mean1860: 8.1 C, -1.2 C from the station mean1861: 9.3 C, 0.0 C from the station mean1862: 8.8 C, -0.5 C from the station mean1863: 9.2 C, -0.1 C from the station mean1864: 8.7 C, -0.6 C from the station mean1865: 9.5 C, +0.2 C from the station mean1866: 9.0 C, -0.3 C from the station mean1867: 8.9 C, -0.4 C from the station mean1868: 9.7 C, +0.4 C from the station mean1869: 9.2 C, -0.1 C from the station mean1870: 9.0 C, -0.3 C from the station mean1871: 9.2 C, -0.1 C from the station mean1872: 8.9 C, -0.4 C from the station mean1873: 8.6 C, -0.7 C from the station mean1874: 9.0 C, -0.3 C from the station mean1875: 9.0 C, -0.2 C from the station mean1876: 8.9 C, -0.4 C from the station mean1877: 8.6 C, -0.7 C from the station mean1878: 8.8 C, -0.5 C from the station mean1879: 7.3 C, -2.0 C from the station mean1880: 8.9 C, -0.4 C from the station mean1881: 8.1 C, -1.2 C from the station mean1882: 8.8 C, -0.5 C from the station mean1883: 8.4 C, -0.9 C from the station mean1884: 8.9 C, -0.4 C from the station mean1885: 8.2 C, -1.1 C from the station mean1886: 8.1 C, -1.2 C from the station mean1887: 8.5 C, -0.8 C from the station mean1888: 8.3 C, -1.0 C from the station mean1889: 9.0 C, -0.3 C from the station mean1890: 8.9 C, -0.4 C from the station mean1891: 8.5 C, -0.8 C from the station mean1892: 7.9 C, -1.4 C from the station mean1893: 9.5 C, +0.2 C from the station mean1894: 8.7 C, -0.5 C from the station mean1895: 8.2 C, -1.1 C from the station mean1896: 9.0 C, -0.3 C from the station mean1897: 8.9 C, -0.4 C from the station mean1898: 9.6 C, +0.3 C from the station mean1899: 9.5 C, +0.2 C from the station mean1900: 9.0 C, -0.2 C from the station mean1901: 8.9 C, -0.4 C from the station mean1902: 8.7 C, -0.6 C from the station mean1903: 8.9 C, -0.4 C from the station mean1904: 8.8 C, -0.5 C from the station mean1905: 9.1 C, -0.2 C from the station mean1906: 9.0 C, -0.3 C from the station mean1907: 8.7 C, -0.6 C from the station mean1908: 9.4 C, +0.1 C from the station mean1909: 8.4 C, -0.9 C from the station mean1910: 9.0 C, -0.3 C from the station mean1911: 9.4 C, +0.1 C from the station mean1912: 8.8 C, -0.5 C from the station mean1913: 9.2 C, -0.1 C from the station mean1914: 9.4 C, +0.1 C from the station mean1915: 8.6 C, -0.7 C from the station mean1916: 9.1 C, -0.2 C from the station mean1917: 8.6 C, -0.7 C from the station mean1918: 9.2 C, -0.1 C from the station mean1919: 8.5 C, -0.8 C from the station mean1920: 9.4 C, +0.1 C from the station mean1921: 10.2 C, +0.9 C from the station mean1922: 8.5 C, -0.8 C from the station mean1923: 8.8 C, -0.5 C from the station mean1924: 9.0 C, -0.3 C from the station mean1925: 8.8 C, -0.5 C from the station mean1926: 9.4 C, +0.1 C from the station mean1927: 8.9 C, -0.4 C from the station mean1928: 9.1 C, -0.2 C from the station mean1929: 8.9 C, -0.4 C from the station mean1930: 8.8 C, -0.5 C from the station mean1931: 9.0 C, -0.3 C from the station mean1932: 9.2 C, -0.1 C from the station mean1933: 9.7 C, +0.4 C from the station mean1934: 9.6 C, +0.3 C from the station mean1935: 9.2 C, -0.1 C from the station mean1936: 9.1 C, -0.2 C from the station mean1937: 9.1 C, -0.2 C from the station mean1938: 9.7 C, +0.4 C from the station mean1939: 9.3 C, 0.0 C from the station mean1940: 9.2 C, -0.1 C from the station mean1941: 9.1 C, -0.2 C from the station mean1942: 9.2 C, -0.1 C from the station mean1943: 9.8 C, +0.5 C from the station mean1944: 9.5 C, +0.2 C from the station mean1945: 10.2 C, +0.9 C from the station mean1946: 9.2 C, -0.1 C from the station mean1947: 9.1 C, -0.2 C from the station mean1948: 9.7 C, +0.4 C from the station mean1949: 10.3 C, +1.0 C from the station mean1950: 9.1 C, -0.2 C from the station mean1951: 8.9 C, -0.4 C from the station mean1952: 8.8 C, -0.5 C from the station mean1953: 9.8 C, +0.5 C from the station mean1954: 9.1 C, -0.2 C from the station mean1955: 9.4 C, +0.1 C from the station mean1956: 9.3 C, 0.0 C from the station mean1957: 9.8 C, +0.5 C from the station mean1958: 9.4 C, +0.1 C from the station mean1959: 10.2 C, +0.9 C from the station mean1960: 9.5 C, +0.2 C from the station mean1961: 9.6 C, +0.3 C from the station mean1962: 8.8 C, -0.5 C from the station mean1963: 8.5 C, -0.7 C from the station mean1964: 9.5 C, +0.2 C from the station mean1965: 8.8 C, -0.5 C from the station mean1966: 9.4 C, +0.1 C from the station mean1967: 9.4 C, +0.1 C from the station mean1968: 9.3 C, 0.0 C from the station mean1969: 8.9 C, -0.4 C from the station mean1970: 9.3 C, 0.0 C from the station mean1971: 9.7 C, +0.4 C from the station mean1972: 8.7 C, -0.6 C from the station mean1973: 9.3 C, 0.0 C from the station mean1974: 8.9 C, -0.3 C from the station mean1975: 9.7 C, +0.4 C from the station mean1976: 9.3 C, +0.1 C from the station mean1977: 8.9 C, -0.4 C from the station mean1978: 9.2 C, -0.1 C from the station mean1979: 8.3 C, -0.9 C from the station mean1980: 9.1 C, -0.2 C from the station mean1981: 9.1 C, -0.2 C from the station mean1982: 9.4 C, +0.1 C from the station mean1983: 9.8 C, +0.5 C from the station mean1984: 9.3 C, 0.0 C from the station mean1985: 8.7 C, -0.6 C from the station mean1986: 8.6 C, -0.7 C from the station mean1987: 9.1 C, -0.2 C from the station mean1988: 9.7 C, +0.4 C from the station mean1989: 10.1 C, +0.8 C from the station mean1990: 9.9 C, +0.6 C from the station mean1991: 9.4 C, +0.1 C from the station mean1992: 9.4 C, +0.1 C from the station mean1993: 9.3 C, 0.0 C from the station mean1994: 9.4 C, +0.1 C from the station mean1995: 10.2 C, +0.9 C from the station mean1996: 9.2 C, -0.1 C from the station mean1997: 10.3 C, +1.0 C from the station mean1998: 10.1 C, +0.8 C from the station mean1999: 10.2 C, +0.9 C from the station mean2000: 9.9 C, +0.6 C from the station mean2001: 9.6 C, +0.3 C from the station mean2002: 10.2 C, +0.9 C from the station mean2003: 10.0 C, +0.7 C from the station mean2004: 10.2 C, +0.9 C from the station mean2005: 10.2 C, +0.9 C from the station mean2006: 10.4 C, +1.1 C from the station mean2007: 10.6 C, +1.3 C from the station mean2008: 9.8 C, +0.5 C from the station mean2010: 8.7 C, -0.6 C from the station mean2011: 10.3 C, +1.0 C from the station mean2012: 9.7 C, +0.4 C from the station mean2013: 9.8 C, +0.5 C from the station mean2014: 10.1 C, +0.8 C from the station mean2015: 9.5 C, +0.2 C from the station mean2016: 10.1 C, +0.8 C from the station mean2017: 10.3 C, +1.1 C from the station mean2018: 10.1 C, +0.8 C from the station mean2019: 10.2 C, +0.9 C from the station mean2020: 10.2 C, +0.9 C from the station mean2021: 10.5 C, +1.2 C from the station mean2022: 10.7 C, +1.4 C from the station mean2023: 11.0 C, +1.7 C from the station mean2024: 10.4 C, +1.1 C from the station mean2025: 11.0 C, +1.7 C from the station mean1844185018601870188018901900191019201930194019501960197019801990200020102020
One stripe for each of 181 complete years at Armagh, 1844 to 2025. Blue stripes are years cooler than the station's own mean of 9.3 C (48.7 F); red stripes are warmer. The coolest year was 1879, at 7.3 C (45.2 F), and the warmest was 2023, at 11.0 C (51.8 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Armagh as warming stripes, 1844 to 2025
YearAnnual mean temperatureDifference from the station mean
18449.2 C-0.08 C
18459.0 C-0.27 C
184610.4 C+1.12 C
18479.6 C+0.33 C
18489.2 C-0.09 C
18499.4 C+0.14 C
18509.7 C+0.45 C
18519.5 C+0.26 C
18529.6 C+0.33 C
18538.7 C-0.54 C
18549.4 C+0.15 C
18558.7 C-0.58 C
18569.5 C+0.17 C
185710.3 C+0.97 C
18589.6 C+0.30 C
18599.7 C+0.40 C
18608.1 C-1.22 C
18619.3 C+0.02 C
18628.8 C-0.52 C
18639.2 C-0.05 C
18648.7 C-0.60 C
18659.5 C+0.23 C
18669.0 C-0.33 C
18678.9 C-0.42 C
18689.7 C+0.43 C
18699.2 C-0.06 C
18709.0 C-0.29 C
18719.2 C-0.05 C
18728.9 C-0.41 C
18738.6 C-0.71 C
18749.0 C-0.33 C
18759.0 C-0.24 C
18768.9 C-0.38 C
18778.6 C-0.69 C
18788.8 C-0.48 C
18797.3 C-1.95 C
18808.9 C-0.43 C
18818.1 C-1.23 C
18828.8 C-0.46 C
18838.4 C-0.89 C
18848.9 C-0.35 C
18858.2 C-1.08 C
18868.1 C-1.16 C
18878.5 C-0.79 C
18888.3 C-1.02 C
18899.0 C-0.33 C
18908.9 C-0.37 C
18918.5 C-0.77 C
18927.9 C-1.39 C
18939.5 C+0.20 C
18948.7 C-0.54 C
18958.2 C-1.10 C
18969.0 C-0.25 C
18978.9 C-0.36 C
18989.6 C+0.29 C
18999.5 C+0.20 C
19009.0 C-0.24 C
19018.9 C-0.38 C
19028.7 C-0.59 C
19038.9 C-0.43 C
19048.8 C-0.45 C
19059.1 C-0.20 C
19069.0 C-0.25 C
19078.7 C-0.60 C
19089.4 C+0.13 C
19098.4 C-0.86 C
19109.0 C-0.31 C
19119.4 C+0.07 C
19128.8 C-0.51 C
19139.2 C-0.13 C
19149.4 C+0.11 C
19158.6 C-0.72 C
19169.1 C-0.22 C
19178.6 C-0.72 C
19189.2 C-0.06 C
19198.5 C-0.80 C
19209.4 C+0.07 C
192110.2 C+0.92 C
19228.5 C-0.78 C
19238.8 C-0.46 C
19249.0 C-0.32 C
19258.8 C-0.48 C
19269.4 C+0.08 C
19278.9 C-0.36 C
19289.1 C-0.15 C
19298.9 C-0.40 C
19308.8 C-0.46 C
19319.0 C-0.31 C
19329.2 C-0.06 C
19339.7 C+0.38 C
19349.6 C+0.30 C
19359.2 C-0.06 C
19369.1 C-0.21 C
19379.1 C-0.16 C
19389.7 C+0.40 C
19399.3 C+0.05 C
19409.2 C-0.11 C
19419.1 C-0.18 C
19429.2 C-0.10 C
19439.8 C+0.55 C
19449.5 C+0.24 C
194510.2 C+0.94 C
19469.2 C-0.12 C
19479.1 C-0.20 C
19489.7 C+0.37 C
194910.3 C+0.97 C
19509.1 C-0.18 C
19518.9 C-0.40 C
19528.8 C-0.53 C
19539.8 C+0.51 C
19549.1 C-0.20 C
19559.4 C+0.14 C
19569.3 C+0.02 C
19579.8 C+0.48 C
19589.4 C+0.10 C
195910.2 C+0.92 C
19609.5 C+0.17 C
19619.6 C+0.29 C
19628.8 C-0.53 C
19638.5 C-0.74 C
19649.5 C+0.20 C
19658.8 C-0.46 C
19669.4 C+0.10 C
19679.4 C+0.13 C
19689.3 C+0.04 C
19698.9 C-0.37 C
19709.3 C0.00 C
19719.7 C+0.44 C
19728.7 C-0.55 C
19739.3 C+0.03 C
19748.9 C-0.34 C
19759.7 C+0.41 C
19769.3 C+0.06 C
19778.9 C-0.35 C
19789.2 C-0.06 C
19798.3 C-0.94 C
19809.1 C-0.19 C
19819.1 C-0.19 C
19829.4 C+0.14 C
19839.8 C+0.47 C
19849.3 C+0.01 C
19858.7 C-0.58 C
19868.6 C-0.72 C
19879.1 C-0.19 C
19889.7 C+0.37 C
198910.1 C+0.79 C
19909.9 C+0.64 C
19919.4 C+0.13 C
19929.4 C+0.14 C
19939.3 C-0.02 C
19949.4 C+0.07 C
199510.2 C+0.93 C
19969.2 C-0.07 C
199710.3 C+1.04 C
199810.1 C+0.79 C
199910.2 C+0.90 C
20009.9 C+0.65 C
20019.6 C+0.29 C
200210.2 C+0.91 C
200310.0 C+0.69 C
200410.2 C+0.93 C
200510.2 C+0.94 C
200610.4 C+1.10 C
200710.6 C+1.32 C
20089.8 C+0.49 C
20108.7 C-0.62 C
201110.3 C+0.98 C
20129.7 C+0.39 C
20139.8 C+0.52 C
201410.1 C+0.84 C
20159.5 C+0.17 C
201610.1 C+0.78 C
201710.3 C+1.06 C
201810.1 C+0.82 C
201910.2 C+0.95 C
202010.2 C+0.92 C
202110.5 C+1.19 C
202210.7 C+1.39 C
202311.0 C+1.71 C
202410.4 C+1.13 C
202511.0 C+1.68 C

The annual mean temperature here has risen by 0.06 C (0.04 to 0.07) per decade over 1844 to 2025. In Fahrenheit: 0.1 F (0.1 to 0.1) per decade. The slope is a straight line fitted to 181 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Armagh
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.06 C (0.04 to 0.07) per decade0.1 F (0.1 to 0.1) per decade1844 to 2025181Rise
Mean daily maximum0.06 C (0.04 to 0.07) per decade0.1 F (0.1 to 0.1) per decade1844 to 2025181Rise
Mean daily minimum0.06 C (0.05 to 0.08) per decade0.1 F (0.1 to 0.1) per decade1844 to 2025181Rise

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1838 to 2026
Yearly extremes at Armagh: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)31.3 C (88.3 F)202125.3 C (77.5 F)183
Coldest night (TNn)-15.1 C (4.8 F)1895-6.8 C (19.8 F)183
Wettest day (Rx1day)83.0 mm (3.3 in)200931.2 mm (1.2 in)189
Wettest five days (Rx5day)260.0 mm (10.2 in)200956.7 mm (2.2 in)189
Longest dry spell (CDD)43 days189419 days189

Hottest day (TXx)

Hottest day (TXx) at Armagh by year The hottest day of the year at Armagh, 1838 to 2026. The record is 31.3 C (88.3 F) in 2021, marked on the chart; the median year is 25.3 C (77.5 F). 202530351840186018801900192019401960198020002020Record: 31.3 C (88.3 F) in 2021
The hottest day of the year at Armagh, 1838 to 2026. The record is 31.3 C (88.3 F) in 2021, marked on the chart; the median year is 25.3 C (77.5 F).
Hottest day (TXx) at Armagh by year
YearHottest day (TXx)
1838n/a
1839n/a
1840n/a
1841n/a
1842n/a
1843n/a
184424.8 C (76.6 F)
184525.2 C (77.4 F)
184628.3 C (82.9 F)
184727.1 C (80.8 F)
184826.1 C (79.0 F)
184925.3 C (77.5 F)
185024.8 C (76.6 F)
185126.9 C (80.4 F)
185225.1 C (77.2 F)
185326.8 C (80.2 F)
185423.9 C (75.0 F)
185524.8 C (76.6 F)
185629.0 C (84.2 F)
185728.0 C (82.4 F)
185824.5 C (76.1 F)
185929.1 C (84.4 F)
186021.9 C (71.4 F)
186124.8 C (76.6 F)
186221.3 C (70.3 F)
186322.6 C (72.7 F)
186425.1 C (77.2 F)
186524.8 C (76.6 F)
186625.1 C (77.2 F)
186723.9 C (75.0 F)
186827.1 C (80.8 F)
186925.9 C (78.6 F)
187026.3 C (79.3 F)
187124.1 C (75.4 F)
187222.9 C (73.2 F)
187324.1 C (75.4 F)
187424.8 C (76.6 F)
187521.9 C (71.4 F)
187628.7 C (83.7 F)
187724.2 C (75.6 F)
187824.7 C (76.5 F)
187922.4 C (72.3 F)
188024.0 C (75.2 F)
188123.1 C (73.6 F)
188224.3 C (75.7 F)
188320.8 C (69.4 F)
188424.4 C (75.9 F)
188525.8 C (78.4 F)
188624.7 C (76.5 F)
188728.1 C (82.6 F)
188824.2 C (75.6 F)
188924.7 C (76.5 F)
189023.1 C (73.6 F)
189125.3 C (77.5 F)
189224.7 C (76.5 F)
189326.1 C (79.0 F)
189424.3 C (75.7 F)
189526.1 C (79.0 F)
189626.9 C (80.4 F)
189725.1 C (77.2 F)
189825.3 C (77.5 F)
189927.8 C (82.0 F)
190026.3 C (79.3 F)
190127.2 C (81.0 F)
190224.4 C (75.9 F)
190324.4 C (75.9 F)
190424.7 C (76.5 F)
190526.3 C (79.3 F)
190627.6 C (81.7 F)
190727.3 C (81.1 F)
190827.1 C (80.8 F)
190924.5 C (76.1 F)
191024.7 C (76.5 F)
191129.1 C (84.4 F)
191222.4 C (72.3 F)
191324.7 C (76.5 F)
191425.7 C (78.3 F)
191522.8 C (73.0 F)
191626.1 C (79.0 F)
191724.1 C (75.4 F)
191826.6 C (79.9 F)
191925.8 C (78.4 F)
192022.7 C (72.9 F)
192129.4 C (84.9 F)
192225.6 C (78.1 F)
192326.2 C (79.2 F)
192422.7 C (72.9 F)
192525.0 C (77.0 F)
192627.2 C (81.0 F)
192723.2 C (73.8 F)
192823.4 C (74.1 F)
192926.1 C (79.0 F)
193024.9 C (76.8 F)
193123.4 C (74.1 F)
193224.3 C (75.7 F)
193327.8 C (82.0 F)
193430.3 C (86.5 F)
193524.3 C (75.7 F)
193625.6 C (78.1 F)
193726.0 C (78.8 F)
193824.0 C (75.2 F)
193928.1 C (82.6 F)
194028.2 C (82.8 F)
194125.6 C (78.1 F)
194227.6 C (81.7 F)
194327.8 C (82.0 F)
194425.3 C (77.5 F)
194524.6 C (76.3 F)
194624.4 C (75.9 F)
194727.7 C (81.9 F)
194828.7 C (83.7 F)
194928.3 C (82.9 F)
195027.7 C (81.9 F)
195123.7 C (74.7 F)
195225.4 C (77.7 F)
195324.6 C (76.3 F)
195421.5 C (70.7 F)
195528.5 C (83.3 F)
195624.5 C (76.1 F)
195727.7 C (81.9 F)
195823.9 C (75.0 F)
195926.8 C (80.2 F)
196024.7 C (76.5 F)
196124.7 C (76.5 F)
196224.3 C (75.7 F)
196325.9 C (78.6 F)
196424.6 C (76.3 F)
196522.9 C (73.2 F)
196624.7 C (76.5 F)
196723.5 C (74.3 F)
196825.5 C (77.9 F)
196926.4 C (79.5 F)
197027.0 C (80.6 F)
197125.9 C (78.6 F)
197226.6 C (79.9 F)
197327.1 C (80.8 F)
197424.5 C (76.1 F)
197528.9 C (84.0 F)
197628.9 C (84.0 F)
197728.4 C (83.1 F)
197824.7 C (76.5 F)
197924.2 C (75.6 F)
198023.2 C (73.8 F)
198124.6 C (76.3 F)
198226.9 C (80.4 F)
198330.0 C (86.0 F)
198428.2 C (82.8 F)
198524.7 C (76.5 F)
198625.6 C (78.1 F)
198725.5 C (77.9 F)
198824.5 C (76.1 F)
198930.0 C (86.0 F)
199027.7 C (81.9 F)
199125.7 C (78.3 F)
199224.9 C (76.8 F)
199323.5 C (74.3 F)
199423.5 C (74.3 F)
199529.4 C (84.9 F)
199625.3 C (77.5 F)
199724.9 C (76.8 F)
199823.3 C (73.9 F)
199926.8 C (80.2 F)
200025.8 C (78.4 F)
200125.4 C (77.7 F)
200224.9 C (76.8 F)
200327.7 C (81.9 F)
200425.7 C (78.3 F)
200528.3 C (82.9 F)
200629.9 C (85.8 F)
200725.3 C (77.5 F)
200825.5 C (77.9 F)
200921.1 C (70.0 F)
201024.7 C (76.5 F)
201124.8 C (76.6 F)
201225.6 C (78.1 F)
201329.5 C (85.1 F)
201428.3 C (82.9 F)
201525.0 C (77.0 F)
201627.6 C (81.7 F)
201726.6 C (79.9 F)
201830.4 C (86.7 F)
201925.5 C (77.9 F)
202025.9 C (78.6 F)
202131.3 C (88.3 F)
202230.8 C (87.4 F)
202328.1 C (82.6 F)
202424.8 C (76.6 F)
202529.2 C (84.6 F)
202629.8 C (85.6 F)

Coldest night (TNn)

Coldest night (TNn) at Armagh by year The coldest night of the year at Armagh, 1838 to 2026. The record is -15.1 C (4.8 F) in 1895, marked on the chart; the median year is -6.8 C (19.8 F). -20-15-10-501840186018801900192019401960198020002020Record: -15.1 C (4.8 F) in 1895
The coldest night of the year at Armagh, 1838 to 2026. The record is -15.1 C (4.8 F) in 1895, marked on the chart; the median year is -6.8 C (19.8 F).
Coldest night (TNn) at Armagh by year
YearColdest night (TNn)
1838n/a
1839n/a
1840n/a
1841n/a
1842n/a
1843n/a
1844-4.6 C (23.7 F)
1845-6.4 C (20.5 F)
1846-7.6 C (18.3 F)
1847-5.8 C (21.6 F)
1848-7.3 C (18.9 F)
1849-8.2 C (17.2 F)
1850-9.4 C (15.1 F)
1851-2.8 C (27.0 F)
1852-3.8 C (25.2 F)
1853-7.6 C (18.3 F)
1854-8.6 C (16.5 F)
1855-9.0 C (15.8 F)
1856-6.8 C (19.8 F)
1857-5.1 C (22.8 F)
1858-4.3 C (24.3 F)
1859-9.1 C (15.6 F)
1860-9.7 C (14.5 F)
1861-7.1 C (19.2 F)
1862-4.4 C (24.1 F)
1863-4.4 C (24.1 F)
1864-7.7 C (18.1 F)
1865-6.4 C (20.5 F)
1866-6.1 C (21.0 F)
1867-12.5 C (9.5 F)
1868-4.7 C (23.5 F)
1869-10.9 C (12.4 F)
1870-11.3 C (11.7 F)
1871-5.3 C (22.5 F)
1872-5.1 C (22.8 F)
1873-7.1 C (19.2 F)
1874-6.2 C (20.8 F)
1875-5.1 C (22.8 F)
1876-5.7 C (21.7 F)
1877-2.9 C (26.8 F)
1878-14.6 C (5.7 F)
1879-10.2 C (13.6 F)
1880-8.7 C (16.3 F)
1881-12.6 C (9.3 F)
1882-9.7 C (14.5 F)
1883-6.5 C (20.3 F)
1884-5.5 C (22.1 F)
1885-5.1 C (22.8 F)
1886-12.2 C (10.0 F)
1887-11.3 C (11.7 F)
1888-7.0 C (19.4 F)
1889-6.2 C (20.8 F)
1890-8.9 C (16.0 F)
1891-7.3 C (18.9 F)
1892-10.6 C (12.9 F)
1893-6.4 C (20.5 F)
1894-14.3 C (6.3 F)
1895-15.1 C (4.8 F)
1896-6.4 C (20.5 F)
1897-8.9 C (16.0 F)
1898-4.2 C (24.4 F)
1899-6.1 C (21.0 F)
1900-6.8 C (19.8 F)
1901-6.8 C (19.8 F)
1902-10.6 C (12.9 F)
1903-6.7 C (19.9 F)
1904-6.9 C (19.6 F)
1905-7.3 C (18.9 F)
1906-7.3 C (18.9 F)
1907-7.2 C (19.0 F)
1908-8.5 C (16.7 F)
1909-10.3 C (13.5 F)
1910-8.6 C (16.5 F)
1911-7.7 C (18.1 F)
1912-6.2 C (20.8 F)
1913-8.4 C (16.9 F)
1914-8.2 C (17.2 F)
1915-7.7 C (18.1 F)
1916-6.0 C (21.2 F)
1917-7.1 C (19.2 F)
1918-7.8 C (18.0 F)
1919-8.3 C (17.1 F)
1920-5.0 C (23.0 F)
1921-4.3 C (24.3 F)
1922-4.9 C (23.2 F)
1923-5.3 C (22.5 F)
1924-7.2 C (19.0 F)
1925-8.3 C (17.1 F)
1926-4.6 C (23.7 F)
1927-7.2 C (19.0 F)
1928-3.9 C (25.0 F)
1929-5.4 C (22.3 F)
1930-7.1 C (19.2 F)
1931-5.8 C (21.6 F)
1932-4.9 C (23.2 F)
1933-6.9 C (19.6 F)
1934-5.0 C (23.0 F)
1935-8.3 C (17.1 F)
1936-5.7 C (21.7 F)
1937-5.9 C (21.4 F)
1938-8.3 C (17.1 F)
1939-10.9 C (12.4 F)
1940-8.8 C (16.2 F)
1941-8.1 C (17.4 F)
1942-6.7 C (19.9 F)
1943-2.3 C (27.9 F)
1944-4.4 C (24.1 F)
1945-11.2 C (11.8 F)
1946-7.2 C (19.0 F)
1947-12.4 C (9.7 F)
1948-4.4 C (24.1 F)
1949-3.8 C (25.2 F)
1950-8.4 C (16.9 F)
1951-5.2 C (22.6 F)
1952-7.4 C (18.7 F)
1953-6.9 C (19.6 F)
1954-5.4 C (22.3 F)
1955-8.4 C (16.9 F)
1956-6.4 C (20.5 F)
1957-4.7 C (23.5 F)
1958-8.6 C (16.5 F)
1959-5.8 C (21.6 F)
1960-6.9 C (19.6 F)
1961-8.7 C (16.3 F)
1962-8.1 C (17.4 F)
1963-11.1 C (12.0 F)
1964-4.4 C (24.1 F)
1965-9.7 C (14.5 F)
1966-6.1 C (21.0 F)
1967-5.2 C (22.6 F)
1968-5.6 C (21.9 F)
1969-10.3 C (13.5 F)
1970-8.3 C (17.1 F)
1971-4.9 C (23.2 F)
1972-8.4 C (16.9 F)
1973-8.6 C (16.5 F)
1974-3.0 C (26.6 F)
1975-4.1 C (24.6 F)
1976-4.3 C (24.3 F)
1977-6.9 C (19.6 F)
1978-6.0 C (21.2 F)
1979-9.4 C (15.1 F)
1980-6.9 C (19.6 F)
1981-9.4 C (15.1 F)
1982-10.6 C (12.9 F)
1983-5.8 C (21.6 F)
1984-9.8 C (14.4 F)
1985-7.5 C (18.5 F)
1986-7.5 C (18.5 F)
1987-8.3 C (17.1 F)
1988-5.6 C (21.9 F)
1989-4.0 C (24.8 F)
1990-5.8 C (21.6 F)
1991-6.0 C (21.2 F)
1992-7.1 C (19.2 F)
1993-6.5 C (20.3 F)
1994-8.4 C (16.9 F)
1995-9.8 C (14.4 F)
1996-5.5 C (22.1 F)
1997-3.1 C (26.4 F)
1998-4.8 C (23.4 F)
1999-5.2 C (22.6 F)
2000-8.6 C (16.5 F)
2001-8.2 C (17.2 F)
2002-7.2 C (19.0 F)
2003-8.2 C (17.2 F)
2004-5.1 C (22.8 F)
2005-4.2 C (24.4 F)
2006-6.2 C (20.8 F)
2007-6.3 C (20.7 F)
2008-6.3 C (20.7 F)
2009-6.6 C (20.1 F)
2010-11.9 C (10.6 F)
2011-6.3 C (20.7 F)
2012-6.8 C (19.8 F)
2013-5.7 C (21.7 F)
2014-5.1 C (22.8 F)
2015-6.0 C (21.2 F)
2016-3.4 C (25.9 F)
2017-4.2 C (24.4 F)
2018-5.1 C (22.8 F)
2019-6.3 C (20.7 F)
2020-2.7 C (27.1 F)
2021-5.3 C (22.5 F)
2022-7.0 C (19.4 F)
2023-5.8 C (21.6 F)
2024-4.6 C (23.7 F)
2025-5.1 C (22.8 F)
2026-3.1 C (26.4 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Armagh by year The wettest day of the year at Armagh, 1838 to 2026. The record is 83.0 mm (3.3 in) in 2009, marked on the chart; the median year is 31.2 mm (1.2 in). 0204060801001840186018801900192019401960198020002020Record: 83.0 mm (3.3 in) in 2009
The wettest day of the year at Armagh, 1838 to 2026. The record is 83.0 mm (3.3 in) in 2009, marked on the chart; the median year is 31.2 mm (1.2 in).
Wettest day (Rx1day) at Armagh by year
YearWettest day (Rx1day)
183834.9 mm (1.4 in)
183936.9 mm (1.5 in)
184031.7 mm (1.2 in)
184127.6 mm (1.1 in)
184243.8 mm (1.7 in)
184334.5 mm (1.4 in)
184431.1 mm (1.2 in)
184547.0 mm (1.9 in)
184634.2 mm (1.3 in)
184722.1 mm (0.9 in)
184828.0 mm (1.1 in)
184937.3 mm (1.5 in)
185028.3 mm (1.1 in)
185124.3 mm (1.0 in)
185232.8 mm (1.3 in)
185335.5 mm (1.4 in)
185435.3 mm (1.4 in)
185521.2 mm (0.8 in)
185620.6 mm (0.8 in)
185731.5 mm (1.2 in)
185833.0 mm (1.3 in)
185920.8 mm (0.8 in)
186033.3 mm (1.3 in)
186137.9 mm (1.5 in)
186232.2 mm (1.3 in)
186324.6 mm (1.0 in)
186434.3 mm (1.4 in)
186544.2 mm (1.7 in)
186624.0 mm (0.9 in)
186726.7 mm (1.1 in)
186823.6 mm (0.9 in)
186930.2 mm (1.2 in)
187031.0 mm (1.2 in)
187126.1 mm (1.0 in)
187233.8 mm (1.3 in)
187329.2 mm (1.1 in)
187426.2 mm (1.0 in)
187540.9 mm (1.6 in)
187629.8 mm (1.2 in)
187723.0 mm (0.9 in)
187838.9 mm (1.5 in)
187925.5 mm (1.0 in)
188031.2 mm (1.2 in)
188127.4 mm (1.1 in)
188232.1 mm (1.3 in)
188336.6 mm (1.4 in)
188428.7 mm (1.1 in)
188520.8 mm (0.8 in)
188646.5 mm (1.8 in)
188728.5 mm (1.1 in)
188856.6 mm (2.2 in)
188940.1 mm (1.6 in)
189030.6 mm (1.2 in)
189124.1 mm (0.9 in)
189232.3 mm (1.3 in)
189320.6 mm (0.8 in)
189433.1 mm (1.3 in)
189532.1 mm (1.3 in)
189653.6 mm (2.1 in)
189739.5 mm (1.6 in)
189825.7 mm (1.0 in)
189919.3 mm (0.8 in)
190031.4 mm (1.2 in)
190144.2 mm (1.7 in)
190236.2 mm (1.4 in)
190329.5 mm (1.2 in)
190425.5 mm (1.0 in)
190567.1 mm (2.6 in)
190630.5 mm (1.2 in)
190724.6 mm (1.0 in)
190838.5 mm (1.5 in)
190921.7 mm (0.9 in)
191038.5 mm (1.5 in)
191119.0 mm (0.7 in)
191241.0 mm (1.6 in)
191347.1 mm (1.9 in)
191423.7 mm (0.9 in)
191523.3 mm (0.9 in)
191640.7 mm (1.6 in)
191731.2 mm (1.2 in)
191831.8 mm (1.3 in)
191931.8 mm (1.3 in)
192027.2 mm (1.1 in)
192128.4 mm (1.1 in)
192219.8 mm (0.8 in)
192318.8 mm (0.7 in)
192429.5 mm (1.2 in)
192526.4 mm (1.0 in)
192625.4 mm (1.0 in)
192739.9 mm (1.6 in)
192842.7 mm (1.7 in)
192955.4 mm (2.2 in)
193023.1 mm (0.9 in)
193133.5 mm (1.3 in)
193231.0 mm (1.2 in)
193316.0 mm (0.6 in)
193428.2 mm (1.1 in)
193524.9 mm (1.0 in)
193633.5 mm (1.3 in)
193722.9 mm (0.9 in)
193825.4 mm (1.0 in)
193922.1 mm (0.9 in)
194029.7 mm (1.2 in)
194130.5 mm (1.2 in)
194225.4 mm (1.0 in)
194327.9 mm (1.1 in)
194441.9 mm (1.6 in)
194527.4 mm (1.1 in)
194626.9 mm (1.1 in)
194724.6 mm (1.0 in)
194826.4 mm (1.0 in)
194931.5 mm (1.2 in)
195025.7 mm (1.0 in)
195145.0 mm (1.8 in)
195224.1 mm (0.9 in)
195339.6 mm (1.6 in)
195428.2 mm (1.1 in)
195543.7 mm (1.7 in)
195625.9 mm (1.0 in)
195731.2 mm (1.2 in)
195846.2 mm (1.8 in)
195923.9 mm (0.9 in)
196038.6 mm (1.5 in)
196125.4 mm (1.0 in)
196231.0 mm (1.2 in)
196340.4 mm (1.6 in)
196438.9 mm (1.5 in)
196525.7 mm (1.0 in)
196648.3 mm (1.9 in)
196732.0 mm (1.3 in)
196847.1 mm (1.9 in)
196977.3 mm (3.0 in)
197078.3 mm (3.1 in)
197134.5 mm (1.4 in)
197221.6 mm (0.9 in)
197324.5 mm (1.0 in)
197423.7 mm (0.9 in)
197541.2 mm (1.6 in)
197632.7 mm (1.3 in)
197723.3 mm (0.9 in)
197839.4 mm (1.6 in)
197936.0 mm (1.4 in)
198033.6 mm (1.3 in)
198138.8 mm (1.5 in)
198227.2 mm (1.1 in)
198332.7 mm (1.3 in)
198436.1 mm (1.4 in)
198533.8 mm (1.3 in)
198633.1 mm (1.3 in)
198752.1 mm (2.1 in)
198826.1 mm (1.0 in)
198920.8 mm (0.8 in)
199023.1 mm (0.9 in)
199128.9 mm (1.1 in)
199234.6 mm (1.4 in)
199336.4 mm (1.4 in)
199423.5 mm (0.9 in)
199528.2 mm (1.1 in)
199630.1 mm (1.2 in)
199725.4 mm (1.0 in)
199823.6 mm (0.9 in)
199938.7 mm (1.5 in)
200038.8 mm (1.5 in)
200121.1 mm (0.8 in)
200242.7 mm (1.7 in)
200322.6 mm (0.9 in)
200441.3 mm (1.6 in)
200531.8 mm (1.3 in)
200631.4 mm (1.2 in)
200727.1 mm (1.1 in)
200832.4 mm (1.3 in)
200983.0 mm (3.3 in)
201038.1 mm (1.5 in)
201134.8 mm (1.4 in)
201240.2 mm (1.6 in)
201326.8 mm (1.1 in)
201436.8 mm (1.4 in)
201531.1 mm (1.2 in)
201622.7 mm (0.9 in)
201722.5 mm (0.9 in)
201833.0 mm (1.3 in)
201949.7 mm (2.0 in)
202029.7 mm (1.2 in)
202130.7 mm (1.2 in)
202247.8 mm (1.9 in)
202340.2 mm (1.6 in)
202435.8 mm (1.4 in)
202523.5 mm (0.9 in)
202634.7 mm (1.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Armagh by year The wettest five days of the year at Armagh, 1838 to 2026. The record is 260.0 mm (10.2 in) in 2009, marked on the chart; the median year is 56.7 mm (2.2 in). 01002003001840186018801900192019401960198020002020Record: 260.0 mm (10.2 in) in 2009
The wettest five days of the year at Armagh, 1838 to 2026. The record is 260.0 mm (10.2 in) in 2009, marked on the chart; the median year is 56.7 mm (2.2 in).
Wettest five days (Rx5day) at Armagh by year
YearWettest five days (Rx5day)
183844.3 mm (1.7 in)
183975.1 mm (3.0 in)
184059.5 mm (2.3 in)
184159.5 mm (2.3 in)
184270.9 mm (2.8 in)
1843104.1 mm (4.1 in)
184457.5 mm (2.3 in)
184583.7 mm (3.3 in)
184656.8 mm (2.2 in)
184741.3 mm (1.6 in)
184857.1 mm (2.2 in)
184956.5 mm (2.2 in)
185071.8 mm (2.8 in)
185151.7 mm (2.0 in)
185283.6 mm (3.3 in)
185362.6 mm (2.5 in)
185467.0 mm (2.6 in)
185534.2 mm (1.3 in)
185649.1 mm (1.9 in)
185752.4 mm (2.1 in)
185854.9 mm (2.2 in)
185940.0 mm (1.6 in)
186062.7 mm (2.5 in)
186173.3 mm (2.9 in)
186249.0 mm (1.9 in)
186345.8 mm (1.8 in)
186466.7 mm (2.6 in)
186571.5 mm (2.8 in)
186653.3 mm (2.1 in)
186752.1 mm (2.1 in)
186854.9 mm (2.2 in)
186964.4 mm (2.5 in)
187071.1 mm (2.8 in)
187145.7 mm (1.8 in)
187251.2 mm (2.0 in)
187349.4 mm (1.9 in)
187439.7 mm (1.6 in)
187558.2 mm (2.3 in)
187654.1 mm (2.1 in)
187745.8 mm (1.8 in)
187857.9 mm (2.3 in)
187946.8 mm (1.8 in)
188056.0 mm (2.2 in)
188142.9 mm (1.7 in)
188247.3 mm (1.9 in)
188355.0 mm (2.2 in)
188446.0 mm (1.8 in)
188541.3 mm (1.6 in)
188670.8 mm (2.8 in)
188766.5 mm (2.6 in)
188878.9 mm (3.1 in)
188967.9 mm (2.7 in)
189064.2 mm (2.5 in)
189148.8 mm (1.9 in)
189262.7 mm (2.5 in)
189346.9 mm (1.8 in)
189474.9 mm (2.9 in)
189564.1 mm (2.5 in)
189679.5 mm (3.1 in)
189764.4 mm (2.5 in)
189844.2 mm (1.7 in)
189956.6 mm (2.2 in)
190061.1 mm (2.4 in)
190173.4 mm (2.9 in)
190259.8 mm (2.4 in)
190372.3 mm (2.8 in)
190448.9 mm (1.9 in)
1905104.9 mm (4.1 in)
190643.4 mm (1.7 in)
190750.1 mm (2.0 in)
190868.6 mm (2.7 in)
190953.7 mm (2.1 in)
191056.7 mm (2.2 in)
191139.7 mm (1.6 in)
191248.3 mm (1.9 in)
191363.4 mm (2.5 in)
191450.6 mm (2.0 in)
191538.5 mm (1.5 in)
191666.5 mm (2.6 in)
191765.2 mm (2.6 in)
191865.9 mm (2.6 in)
191947.2 mm (1.9 in)
192073.7 mm (2.9 in)
192153.3 mm (2.1 in)
192244.7 mm (1.8 in)
192339.7 mm (1.6 in)
192449.5 mm (1.9 in)
192552.6 mm (2.1 in)
192644.0 mm (1.7 in)
192776.4 mm (3.0 in)
192883.4 mm (3.3 in)
192989.2 mm (3.5 in)
193062.2 mm (2.4 in)
193159.0 mm (2.3 in)
193281.1 mm (3.2 in)
193338.6 mm (1.5 in)
193454.3 mm (2.1 in)
193538.2 mm (1.5 in)
193664.7 mm (2.5 in)
193742.2 mm (1.7 in)
193851.4 mm (2.0 in)
193937.9 mm (1.5 in)
194061.8 mm (2.4 in)
194144.5 mm (1.8 in)
194250.4 mm (2.0 in)
194341.4 mm (1.6 in)
194458.3 mm (2.3 in)
194557.7 mm (2.3 in)
194663.5 mm (2.5 in)
194749.9 mm (2.0 in)
194852.6 mm (2.1 in)
194950.3 mm (2.0 in)
195054.6 mm (2.1 in)
195167.6 mm (2.7 in)
195246.5 mm (1.8 in)
195353.6 mm (2.1 in)
195459.9 mm (2.4 in)
195555.5 mm (2.2 in)
195665.1 mm (2.6 in)
195768.5 mm (2.7 in)
195885.2 mm (3.4 in)
195936.8 mm (1.4 in)
196067.6 mm (2.7 in)
196150.6 mm (2.0 in)
196262.2 mm (2.4 in)
196358.9 mm (2.3 in)
196480.4 mm (3.2 in)
196555.1 mm (2.2 in)
196658.5 mm (2.3 in)
196751.3 mm (2.0 in)
196885.4 mm (3.4 in)
196981.2 mm (3.2 in)
197084.4 mm (3.3 in)
197172.2 mm (2.8 in)
197244.2 mm (1.7 in)
197339.5 mm (1.6 in)
197447.6 mm (1.9 in)
197564.4 mm (2.5 in)
197648.7 mm (1.9 in)
197754.4 mm (2.1 in)
197854.7 mm (2.2 in)
197945.8 mm (1.8 in)
198057.4 mm (2.3 in)
198175.8 mm (3.0 in)
198251.1 mm (2.0 in)
198339.0 mm (1.5 in)
198462.8 mm (2.5 in)
198556.3 mm (2.2 in)
198673.1 mm (2.9 in)
198798.2 mm (3.9 in)
198845.0 mm (1.8 in)
198945.8 mm (1.8 in)
199055.3 mm (2.2 in)
199174.5 mm (2.9 in)
199258.6 mm (2.3 in)
199382.9 mm (3.3 in)
199446.4 mm (1.8 in)
199569.7 mm (2.7 in)
199645.2 mm (1.8 in)
199745.0 mm (1.8 in)
199854.3 mm (2.1 in)
199965.8 mm (2.6 in)
200050.5 mm (2.0 in)
200139.0 mm (1.5 in)
200286.1 mm (3.4 in)
200339.4 mm (1.6 in)
200461.1 mm (2.4 in)
200543.9 mm (1.7 in)
200643.0 mm (1.7 in)
200758.8 mm (2.3 in)
200863.2 mm (2.5 in)
2009260.0 mm (10.2 in)
201073.1 mm (2.9 in)
201167.9 mm (2.7 in)
201254.9 mm (2.2 in)
201353.1 mm (2.1 in)
201483.2 mm (3.3 in)
201569.7 mm (2.7 in)
201660.4 mm (2.4 in)
201740.6 mm (1.6 in)
201841.6 mm (1.6 in)
201960.4 mm (2.4 in)
202077.2 mm (3.0 in)
202164.5 mm (2.5 in)
202262.1 mm (2.4 in)
2023111.2 mm (4.4 in)
202444.7 mm (1.8 in)
202554.5 mm (2.1 in)
202664.6 mm (2.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Armagh by year The longest dry spell of the year at Armagh, 1838 to 2026. The record is 43 days in 1894, marked on the chart; the median year is 19 days. 10203040501840186018801900192019401960198020002020Record: 43 days in 1894
The longest dry spell of the year at Armagh, 1838 to 2026. The record is 43 days in 1894, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Armagh by year
YearLongest dry spell (CDD)
183817 days
183918 days
184042 days
184111 days
184219 days
184321 days
184427 days
184517 days
184619 days
184720 days
184813 days
184915 days
185021 days
185119 days
185222 days
185318 days
185428 days
185521 days
185627 days
185712 days
185823 days
185913 days
186018 days
186118 days
186212 days
186326 days
186419 days
186521 days
186619 days
186718 days
186824 days
186921 days
187022 days
187126 days
187217 days
187324 days
187423 days
187523 days
187624 days
187725 days
187827 days
187921 days
188023 days
188116 days
188216 days
188318 days
188414 days
188515 days
188618 days
188724 days
188818 days
188924 days
189012 days
189121 days
189217 days
189317 days
189443 days
189522 days
189617 days
189718 days
189817 days
189923 days
190015 days
190117 days
190218 days
190323 days
190413 days
190518 days
190615 days
190725 days
190815 days
190918 days
191015 days
191120 days
191222 days
191317 days
191423 days
191517 days
191611 days
191725 days
191816 days
191915 days
192010 days
192133 days
192219 days
192311 days
192415 days
192515 days
192616 days
192716 days
192820 days
192922 days
193012 days
193116 days
193229 days
193317 days
193421 days
193514 days
193616 days
193712 days
193834 days
193921 days
194016 days
194125 days
194224 days
194310 days
194415 days
194517 days
194620 days
194731 days
194822 days
194914 days
195014 days
195115 days
195222 days
195326 days
195426 days
195529 days
195611 days
195719 days
195818 days
195927 days
196019 days
196122 days
196222 days
196322 days
196416 days
196515 days
196614 days
196715 days
196819 days
196915 days
197012 days
197115 days
197225 days
197318 days
197421 days
197524 days
197627 days
197722 days
197814 days
197911 days
198024 days
198117 days
198224 days
198315 days
198425 days
198519 days
198628 days
198716 days
198818 days
198918 days
199012 days
199126 days
199226 days
199324 days
199417 days
199523 days
199626 days
199724 days
199814 days
199912 days
200015 days
200114 days
200220 days
200320 days
200421 days
200511 days
200618 days
200723 days
200815 days
200912 days
201021 days
201121 days
201216 days
201320 days
201424 days
201514 days
201623 days
201718 days
201824 days
201913 days
202022 days
202120 days
202224 days
202326 days
202421 days
202522 days
202630 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

181 years with a frost

Across 181 years with a frost, the median last spring frost at Armagh falls on 22 April and the median first autumn frost on 31 October, which leaves a median of 193 days between them.

In 1995 to 2025 the median growing season was 206 days. The two periods have the same number of growing days.

Fitted over all years, the growing season changes by +0.2 days per decade at this station.

Frost dates and growing season at Armagh
MeasureMedian, all yearsEarliest period (1844 to 1873)Recent period (1995 to 2025)Recent against earliestFitted trend
Last spring frost22 April10 April20 April10 days later+0.2 days per decade
First autumn frost31 October6 November7 November1 day later+0.4 days per decade
Growing days193 days206 days206 daysno change+0.2 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

187 years, 1838 to 2025

A day with at least 30.6 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 63.8 mm (2.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Armagh: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years30.6 mm (1.2 in)
5 years38.8 mm (1.5 in)
10 years44.4 mm (1.7 in)
25 years51.9 mm (2.0 in)
50 years57.8 mm (2.3 in)
100 years63.8 mm (2.5 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 187 years of values from 1838 to 2025.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 78.3 mm (3.1 in) in 1970; 77.3 mm (3.0 in) in 1969; 67.1 mm (2.6 in) in 1905.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Climate Twins

2011 to 2025 against 1961 to 1990

Over 2011 to 2025, Armagh had a mean temperature of 10.3 C (50.5 F) and 835.2 mm (32.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are El Tarahumar (Mexico, 8,312 km away), Everton (United Kingdom, 528 km away) and El Salto (Smn) (Mexico, 8,418 km away).

Climate twins of Armagh: stations whose 1961 to 1990 climate is closest to its 2011 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
El TarahumarMexico8,312 km (5,165 mi)10.0 C (49.9 F)894.2 mm (35.2 in)0.58
EvertonUnited Kingdom528 km (328 mi)10.2 C (50.3 F)752.8 mm (29.6 in)0.68
El Salto (Smn)Mexico8,418 km (5,231 mi)10.1 C (50.1 F)980.4 mm (38.6 in)0.72

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

  • Data for Armagh standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Armagh threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-13).