Built 2026-10-14 (14 October 2026)

Hiram Weather Records (USC00333780)

Record envelope, standing records and threshold days for Hiram (USC00333780), Ohio, United States, with 134 years of record.

Key Facts for Hiram

  • Hiram (USC00333780) is a weather station in Ohio, United States at 41.31 latitude and -81.15 longitude, 375 m (1,230 ft) above sea level.
  • The station reports from 1893 to 2026, 134 years of record.
  • 1,464 records set at Hiram still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Hiram set a daily record precipitation of 53.3 mm (2.1 in) on 23 August 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Ohio, United States, 41.31 latitude, -81.15 longitude.
  • Elevation: 375 m (1,230 ft).
  • Period of record: 1893 to 2026, 134 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

4 days at or beyond a record
Daily record high and record low at Hiram, with 2026 drawn through them The band shows the record high and record low for each calendar day at Hiram. The lines show the 2026 daily maximum and minimum. 4 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Hiram. The lines show the 2026 daily maximum and minimum. 4 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Hiram, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan21.7 C (71.1 F)-31.7 C (-25.1 F)15.6 C (60.1 F)-25.0 C (-13.0 F)
Feb22.8 C (73.0 F)-31.1 C (-24.0 F)13.3 C (55.9 F)-21.7 C (-7.1 F)
Mar27.2 C (81.0 F)-23.9 C (-11.0 F)24.4 C (75.9 F)-11.1 C (12.0 F)
Apr30.6 C (87.1 F)-16.7 C (1.9 F)26.7 C (80.1 F)-7.2 C (19.0 F)
May33.9 C (93.0 F)-4.4 C (24.1 F)31.1 C (88.0 F)-0.6 C (30.9 F)
Jun37.8 C (100.0 F)0.6 C (33.1 F)30.6 C (87.1 F)7.2 C (45.0 F)
Jul38.3 C (100.9 F)4.4 C (39.9 F)34.4 C (93.9 F)10.0 C (50.0 F)
Aug38.9 C (102.0 F)3.3 C (37.9 F)30.0 C (86.0 F)10.6 C (51.1 F)
Sep38.9 C (102.0 F)-2.8 C (27.0 F)n/an/a
Oct31.1 C (88.0 F)-6.7 C (19.9 F)n/an/a
Nov26.7 C (80.1 F)-18.9 C (-2.0 F)n/an/a
Dec22.8 C (73.0 F)-25.6 C (-14.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Hiram by the year they were set 1,464 records at Hiram still stand. 1895 holds the most, with 33. 0102030401893: 51894: 101895: 331896: 241897: 171898: 111899: 231900: 211901: 161902: 121903: 161904: 71905: 51906: 131907: 81908: 161909: 91910: 131911: 151912: 101913: 141914: 181915: 151916: 141917: 161918: 171919: 61920: 71921: 31922: 21923: 151924: 141925: 241926: 101927: 151928: 151929: 251930: 281931: 181932: 101933: 231934: 211935: 111936: 171937: 41938: 91939: 101940: 151941: 41942: 101943: 71944: 91945: 131946: 81947: 201948: 71949: 101950: 181951: 141952: 121953: 161954: 171955: 61956: 91957: 41958: 71959: 101960: 21961: 51962: 191963: 211964: 51965: 41966: 71967: 161968: 11969: 101970: 71971: 101972: 151973: 61974: 91975: 71976: 81977: 91978: 41979: 91980: 81981: 51982: 201983: 121984: 131985: 141986: 71987: 41988: 201989: 91990: 231991: 191992: 61993: 51994: 131995: 61996: 101997: 81998: 41999: 32000: 142001: 72002: 82003: 62004: 52005: 52006: 52007: 72008: 92009: 42010: 32011: 32012: 82013: 42014: 192015: 192016: 82017: 82018: 82019: 42020: 82021: 52022: 82023: 72024: 52025: 62026: 71893190719211935194919631977199120052019
1,464 records at Hiram still stand. 1895 holds the most, with 33.
Standing records at Hiram by the year they were set
Year setStanding records
18935
189410
189533
189624
189717
189811
189923
190021
190116
190212
190316
19047
19055
190613
19078
190816
19099
191013
191115
191210
191314
191418
191515
191614
191716
191817
19196
19207
19213
19222
192315
192414
192524
192610
192715
192815
192925
193028
193118
193210
193323
193421
193511
193617
19374
19389
193910
194015
19414
194210
19437
19449
194513
19468
194720
19487
194910
195018
195114
195212
195316
195417
19556
19569
19574
19587
195910
19602
19615
196219
196321
19645
19654
19667
196716
19681
196910
19707
197110
197215
19736
19749
19757
19768
19779
19784
19799
19808
19815
198220
198312
198413
198514
19867
19874
198820
19899
199023
199119
19926
19935
199413
19956
199610
19978
19984
19993
200014
20017
20028
20036
20045
20055
20065
20077
20089
20094
20103
20113
20128
20134
201419
201519
20168
20178
20188
20194
20208
20215
20228
20237
20245
20256
20267

All-Time Record Progression

8 new records
When Hiram set new all-time records 8 all-time records were set at Hiram between 2 August 1935 and 19 January 1994. Each dot is a new record. Record daily precipitationRecord snow depthRecord low minimum temperature2 August 1935: Record daily precipitation 94.0 mm (3.7 in)26 November 1950: Record snow depth 55.9 cm (22.0 in)24 January 1963: Record low minimum temperature -30.6 C (-23.1 F)20 July 1969: Record daily precipitation 97.0 mm (3.8 in)27 August 1971: Record daily precipitation 107.7 mm (4.2 in)17 September 1972: Record daily precipitation 127.0 mm (5.0 in)14 September 1979: Record daily precipitation 140.5 mm (5.5 in)19 January 1994: Record low minimum temperature -31.7 C (-25.1 F)194019501960197019801990
8 all-time records were set at Hiram between 2 August 1935 and 19 January 1994. Each dot is a new record.
When Hiram set new all-time records
DateKindDetail
1935-08-02Record daily precipitationRecord daily precipitation 94.0 mm (3.7 in)
1950-11-26Record snow depthRecord snow depth 55.9 cm (22.0 in)
1963-01-24Record low minimum temperatureRecord low minimum temperature -30.6 C (-23.1 F)
1969-07-20Record daily precipitationRecord daily precipitation 97.0 mm (3.8 in)
1971-08-27Record daily precipitationRecord daily precipitation 107.7 mm (4.2 in)
1972-09-17Record daily precipitationRecord daily precipitation 127.0 mm (5.0 in)
1979-09-14Record daily precipitationRecord daily precipitation 140.5 mm (5.5 in)
1994-01-19Record low minimum temperatureRecord low minimum temperature -31.7 C (-25.1 F)

Wettest Day of Each Month

Sep: 140.5 mm (5.5 in)
Record daily precipitation for each month at Hiram The wettest day on record for each calendar month at Hiram. The most was 140.5 mm (5.5 in) on 14 September 1979. 050100150 Jan: 52.1 mm (2.1 in), 21 January 1959 Jan Feb: 63.5 mm (2.5 in), 10 February 1959 Feb Mar: 78.7 mm (3.1 in), 25 March 1913 Mar Apr: 61.7 mm (2.4 in), 16 April 2018 Apr May: 61.5 mm (2.4 in), 26 May 1905 May Jun: 81.8 mm (3.2 in), 28 June 1983 Jun Jul: 102.9 mm (4.1 in), 22 July 2003 Jul Aug: 107.7 mm (4.2 in), 27 August 1971 Aug Sep: 140.5 mm (5.5 in), 14 September 1979 Sep Oct: 82.6 mm (3.3 in), 14 October 1893 Oct Nov: 61.2 mm (2.4 in), 3 November 1999 Nov Dec: 50.3 mm (2.0 in), 23 December 2004 Dec
The wettest day on record for each calendar month at Hiram. The most was 140.5 mm (5.5 in) on 14 September 1979.
Record daily precipitation for each month at Hiram
MonthRecord daily precipitation (mm)Date
Jan52.1 mm (2.1 in)21 January 1959
Feb63.5 mm (2.5 in)10 February 1959
Mar78.7 mm (3.1 in)25 March 1913
Apr61.7 mm (2.4 in)16 April 2018
May61.5 mm (2.4 in)26 May 1905
Jun81.8 mm (3.2 in)28 June 1983
Jul102.9 mm (4.1 in)22 July 2003
Aug107.7 mm (4.2 in)27 August 1971
Sep140.5 mm (5.5 in)14 September 1979
Oct82.6 mm (3.3 in)14 October 1893
Nov61.2 mm (2.4 in)3 November 1999
Dec50.3 mm (2.0 in)23 December 2004

Period of Record Coverage

1893 to 2026
Days with data per year at Hiram 134 years of record at Hiram, 1893 to 2026. 9 years have data for under 90 percent of days and are left out of rankings: 1893, 1950, 1956, 1959, 1968, 1973, 1989, 1994 and others. 1893: 214 of 365 days1894: 364 of 365 days1895: 365 of 365 days1896: 333 of 366 days1897: 334 of 365 days1898: 365 of 365 days1899: 363 of 365 days1900: 364 of 365 days1901: 365 of 365 days1902: 363 of 365 days1903: 363 of 365 days1904: 366 of 366 days1905: 365 of 365 days1906: 364 of 365 days1907: 365 of 365 days1908: 365 of 366 days1909: 365 of 365 days1910: 365 of 365 days1911: 364 of 365 days1912: 365 of 366 days1913: 365 of 365 days1914: 365 of 365 days1915: 365 of 365 days1916: 366 of 366 days1917: 364 of 365 days1918: 364 of 365 days1919: 364 of 365 days1920: 366 of 366 days1921: 364 of 365 days1922: 365 of 365 days1923: 364 of 365 days1924: 366 of 366 days1925: 364 of 365 days1926: 365 of 365 days1927: 365 of 365 days1928: 366 of 366 days1929: 361 of 365 days1930: 364 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: 365 of 365 days1940: 366 of 366 days1941: 365 of 365 days1942: 365 of 365 days1943: 365 of 365 days1944: 365 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 364 of 365 days1948: 366 of 366 days1949: 329 of 365 days1950: 280 of 365 days1951: 361 of 365 days1952: 365 of 366 days1953: 363 of 365 days1954: 362 of 365 days1955: 349 of 365 days1956: 322 of 366 days1957: 358 of 365 days1958: 349 of 365 days1959: 310 of 365 days1960: 365 of 366 days1961: 363 of 365 days1962: 365 of 365 days1963: 361 of 365 days1964: 343 of 366 days1965: 364 of 365 days1966: 358 of 365 days1967: 329 of 365 days1968: 303 of 366 days1969: 362 of 365 days1970: 359 of 365 days1971: 364 of 365 days1972: 365 of 366 days1973: 253 of 365 days1974: 348 of 365 days1975: 362 of 365 days1976: 357 of 366 days1977: 365 of 365 days1978: 360 of 365 days1979: 363 of 365 days1980: 366 of 366 days1981: 364 of 365 days1982: 363 of 365 days1983: 364 of 365 days1984: 361 of 366 days1985: 363 of 365 days1986: 352 of 365 days1987: 360 of 365 days1988: 351 of 366 days1989: 324 of 365 days1990: 362 of 365 days1991: 362 of 365 days1992: 331 of 366 days1993: 361 of 365 days1994: 323 of 365 days1995: 353 of 365 days1996: 365 of 366 days1997: 365 of 365 days1998: 364 of 365 days1999: 365 of 365 days2000: 365 of 366 days2001: 365 of 365 days2002: 364 of 365 days2003: 363 of 365 days2004: 364 of 366 days2005: 362 of 365 days2006: 363 of 365 days2007: 360 of 365 days2008: 365 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 364 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 364 of 366 days2025: 364 of 365 days2026: 243 of 365 days1900192019401960198020002020
134 years of record at Hiram, 1893 to 2026. 9 years have data for under 90 percent of days and are left out of rankings: 1893, 1950, 1956, 1959, 1968, 1973, 1989, 1994 and others.
Days with data per year at Hiram
YearDays with dataShare of yearComplete
189321459%No
1894364100%Yes
1895365100%Yes
189633391%Yes
189733492%Yes
1898365100%Yes
189936399%Yes
1900364100%Yes
1901365100%Yes
190236399%Yes
190336399%Yes
1904366100%Yes
1905365100%Yes
1906364100%Yes
1907365100%Yes
1908365100%Yes
1909365100%Yes
1910365100%Yes
1911364100%Yes
1912365100%Yes
1913365100%Yes
1914365100%Yes
1915365100%Yes
1916366100%Yes
1917364100%Yes
1918364100%Yes
1919364100%Yes
1920366100%Yes
1921364100%Yes
1922365100%Yes
1923364100%Yes
1924366100%Yes
1925364100%Yes
1926365100%Yes
1927365100%Yes
1928366100%Yes
192936199%Yes
1930364100%Yes
1931365100%Yes
1932366100%Yes
1933365100%Yes
1934365100%Yes
1935365100%Yes
1936366100%Yes
1937365100%Yes
1938365100%Yes
1939365100%Yes
1940366100%Yes
1941365100%Yes
1942365100%Yes
1943365100%Yes
1944365100%Yes
1945365100%Yes
1946365100%Yes
1947364100%Yes
1948366100%Yes
194932990%Yes
195028077%No
195136199%Yes
1952365100%Yes
195336399%Yes
195436299%Yes
195534996%Yes
195632288%No
195735898%Yes
195834996%Yes
195931085%No
1960365100%Yes
196136399%Yes
1962365100%Yes
196336199%Yes
196434394%Yes
1965364100%Yes
196635898%Yes
196732990%Yes
196830383%No
196936299%Yes
197035998%Yes
1971364100%Yes
1972365100%Yes
197325369%No
197434895%Yes
197536299%Yes
197635798%Yes
1977365100%Yes
197836099%Yes
197936399%Yes
1980366100%Yes
1981364100%Yes
198236399%Yes
1983364100%Yes
198436199%Yes
198536399%Yes
198635296%Yes
198736099%Yes
198835196%Yes
198932489%No
199036299%Yes
199136299%Yes
199233190%Yes
199336199%Yes
199432388%No
199535397%Yes
1996365100%Yes
1997365100%Yes
1998364100%Yes
1999365100%Yes
2000365100%Yes
2001365100%Yes
2002364100%Yes
200336399%Yes
200436499%Yes
200536299%Yes
200636399%Yes
200736099%Yes
2008365100%Yes
2009365100%Yes
2010365100%Yes
2011364100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
2023365100%Yes
202436499%Yes
2025364100%Yes
202624367%No

Latest Records

20
Latest records at Hiram
DateStationRecordValueBeat old record byOld record stoodSignificance
23 August 2026Hiram, USdaily rain (Provisional)53.3 mm (2.1 in)23.1 mm (0.9 in)60 years47 of 100 (Notable)
6 July 2026Hiram, USdaily rain50.8 mm (2.0 in)21.1 mm (0.8 in)67 years48 of 100 (Notable)
12 June 2026Hiram, USdaily high min20.6 C (69.1 F)0.6 C (1.1 F)25 years18 of 100 (Routine)
23 May 2026Hiram, USdaily rain25.1 mm (1.0 in)2.5 mm (0.10 in)44 years25 of 100 (Routine)
6 May 2026Hiram, USdaily rain31.8 mm (1.3 in)4.4 mm (0.17 in)55 years31 of 100 (Routine)
17 April 2026Hiram, USdaily rain23.1 mm (0.9 in)1.8 mm (0.07 in)104 years20 of 100 (Routine)
14 April 2026Hiram, USdaily high min16.7 C (62.1 F)0.6 C (1.1 F)12 years14 of 100 (Routine)
5 April 2026Hiram, USdaily high max26.7 C (80.1 F)0.6 C (1.1 F)116 years40 of 100 (Notable)
1 April 2026Hiram, USdaily rain39.1 mm (1.5 in)5.6 mm (0.22 in)96 years45 of 100 (Notable)
11 March 2026Hiram, USdaily high min11.7 C (53.1 F)2.3 C (4.1 F)52 years28 of 100 (Routine)
31 January 2026Hiram, USdaily low min (Tie)-25.0 C (-13.0 F)tie55 years6 of 100 (Routine)
30 January 2026Hiram, USdaily low min-25.0 C (-13.0 F)3.3 C (5.9 F)7 years16 of 100 (Routine)
26 January 2026Hiram, USdaily snowfall17.8 cm (7.0 in)7.4 cm (2.9 in)55 years43 of 100 (Notable)
25 January 2026Hiram, USdaily low max-12.8 C (9.0 F)0.6 C (1.1 F)122 years40 of 100 (Notable)
15 January 2026Hiram, USdaily snowfall19.1 cm (7.5 in)4.9 cm (1.9 in)22 years27 of 100 (Routine)
10 January 2026Hiram, USdaily high max15.6 C (60.1 F)1.7 C (3.1 F)76 years34 of 100 (Routine)
15 December 2025Hiram, USdaily snowfall17.8 cm (7.0 in)1.8 cm (0.7 in)74 years36 of 100 (Notable)
5 December 2025Hiram, USdaily low min-15.0 C (5.0 F)1.1 C (2.0 F)34 years21 of 100 (Routine)
28 November 2025Hiram, USdaily rain40.6 mm (1.6 in)12.9 mm (0.5 in)56 years44 of 100 (Notable)
28 November 2025Hiram, USdaily snowfall17.8 cm (7.0 in)2.6 cm (1.0 in)67 years34 of 100 (Routine)

Climate Trend

116 complete years, 1894 to 2025
Annual mean temperature at Hiram as warming stripes, 1894 to 2025 One stripe for each of 116 complete years at Hiram, 1894 to 2025. Blue stripes are years cooler than the station's own mean of 9.3 C (48.8 F); red stripes are warmer. The coolest year was 2014, at 7.4 C (45.4 F), and the warmest was 1953, at 10.9 C (51.6 F). The strongest colour marks a difference of 1.9 C (3.4 F). 1894: 9.9 C, +0.6 C from the station mean1895: 8.3 C, -1.0 C from the station mean1898: 9.9 C, +0.6 C from the station mean1899: 9.8 C, +0.5 C from the station mean1900: 9.8 C, +0.5 C from the station mean1901: 8.9 C, -0.5 C from the station mean1902: 8.9 C, -0.5 C from the station mean1903: 9.0 C, -0.4 C from the station mean1904: 7.8 C, -1.5 C from the station mean1905: 8.8 C, -0.6 C from the station mean1906: 9.6 C, +0.3 C from the station mean1907: 8.3 C, -1.1 C from the station mean1908: 10.0 C, +0.6 C from the station mean1909: 9.2 C, -0.1 C from the station mean1910: 9.3 C, 0.0 C from the station mean1911: 10.2 C, +0.8 C from the station mean1912: 8.6 C, -0.8 C from the station mean1913: 10.1 C, +0.8 C from the station mean1914: 9.1 C, -0.2 C from the station mean1915: 9.2 C, -0.1 C from the station mean1916: 9.2 C, -0.2 C from the station mean1917: 7.5 C, -1.8 C from the station mean1918: 9.7 C, +0.3 C from the station mean1919: 10.1 C, +0.8 C from the station mean1920: 8.6 C, -0.8 C from the station mean1921: 10.9 C, +1.5 C from the station mean1922: 10.1 C, +0.8 C from the station mean1923: 8.7 C, -0.6 C from the station mean1924: 7.8 C, -1.5 C from the station mean1925: 8.8 C, -0.5 C from the station mean1926: 8.4 C, -0.9 C from the station mean1927: 9.6 C, +0.3 C from the station mean1928: 9.2 C, -0.1 C from the station mean1929: 8.8 C, -0.5 C from the station mean1930: 9.7 C, +0.4 C from the station mean1931: 10.9 C, +1.6 C from the station mean1932: 9.9 C, +0.6 C from the station mean1933: 10.4 C, +1.0 C from the station mean1934: 9.5 C, +0.2 C from the station mean1935: 9.1 C, -0.2 C from the station mean1936: 9.1 C, -0.2 C from the station mean1937: 9.2 C, -0.2 C from the station mean1938: 10.3 C, +0.9 C from the station mean1939: 10.2 C, +0.8 C from the station mean1940: 8.4 C, -0.9 C from the station mean1941: 9.9 C, +0.6 C from the station mean1942: 9.4 C, +0.1 C from the station mean1943: 8.7 C, -0.6 C from the station mean1944: 9.6 C, +0.3 C from the station mean1945: 9.0 C, -0.4 C from the station mean1946: 10.1 C, +0.8 C from the station mean1947: 8.8 C, -0.6 C from the station mean1948: 9.0 C, -0.3 C from the station mean1951: 9.6 C, +0.3 C from the station mean1952: 10.3 C, +1.0 C from the station mean1953: 10.9 C, +1.6 C from the station mean1954: 10.3 C, +1.0 C from the station mean1957: 9.7 C, +0.4 C from the station mean1958: 8.5 C, -0.8 C from the station mean1960: 9.3 C, 0.0 C from the station mean1961: 9.8 C, +0.4 C from the station mean1962: 9.1 C, -0.2 C from the station mean1963: 8.6 C, -0.8 C from the station mean1965: 9.9 C, +0.5 C from the station mean1966: 9.9 C, +0.6 C from the station mean1969: 8.7 C, -0.6 C from the station mean1971: 9.7 C, +0.4 C from the station mean1972: 8.8 C, -0.6 C from the station mean1975: 10.2 C, +0.9 C from the station mean1976: 9.1 C, -0.2 C from the station mean1977: 9.6 C, +0.3 C from the station mean1978: 8.6 C, -0.8 C from the station mean1979: 8.5 C, -0.8 C from the station mean1980: 8.6 C, -0.7 C from the station mean1981: 8.9 C, -0.4 C from the station mean1982: 9.2 C, -0.1 C from the station mean1983: 9.8 C, +0.5 C from the station mean1984: 9.5 C, +0.2 C from the station mean1985: 9.5 C, +0.2 C from the station mean1986: 9.8 C, +0.5 C from the station mean1987: 10.2 C, +0.8 C from the station mean1988: 9.3 C, -0.1 C from the station mean1990: 10.5 C, +1.2 C from the station mean1991: 10.8 C, +1.5 C from the station mean1993: 9.3 C, 0.0 C from the station mean1995: 9.8 C, +0.5 C from the station mean1996: 8.3 C, -1.0 C from the station mean1997: 8.2 C, -1.1 C from the station mean1998: 10.6 C, +1.3 C from the station mean1999: 9.4 C, +0.1 C from the station mean2000: 8.6 C, -0.7 C from the station mean2001: 9.6 C, +0.2 C from the station mean2002: 9.4 C, +0.1 C from the station mean2003: 8.1 C, -1.3 C from the station mean2004: 8.6 C, -0.7 C from the station mean2005: 9.1 C, -0.3 C from the station mean2006: 9.7 C, +0.3 C from the station mean2007: 9.1 C, -0.2 C from the station mean2008: 8.2 C, -1.1 C from the station mean2009: 8.1 C, -1.2 C from the station mean2010: 9.1 C, -0.2 C from the station mean2011: 9.4 C, +0.1 C from the station mean2012: 10.5 C, +1.1 C from the station mean2013: 8.4 C, -0.9 C from the station mean2014: 7.4 C, -1.9 C from the station mean2015: 8.8 C, -0.5 C from the station mean2016: 9.9 C, +0.6 C from the station mean2017: 9.9 C, +0.5 C from the station mean2018: 9.2 C, -0.1 C from the station mean2019: 9.2 C, -0.1 C from the station mean2020: 9.6 C, +0.3 C from the station mean2021: 9.9 C, +0.5 C from the station mean2022: 8.8 C, -0.6 C from the station mean2023: 10.0 C, +0.7 C from the station mean2024: 10.8 C, +1.5 C from the station mean2025: 9.1 C, -0.2 C from the station mean18941900191019201930194019501960197019801990200020102020
One stripe for each of 116 complete years at Hiram, 1894 to 2025. Blue stripes are years cooler than the station's own mean of 9.3 C (48.8 F); red stripes are warmer. The coolest year was 2014, at 7.4 C (45.4 F), and the warmest was 1953, at 10.9 C (51.6 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Hiram as warming stripes, 1894 to 2025
YearAnnual mean temperatureDifference from the station mean
18949.9 C+0.57 C
18958.3 C-1.00 C
18989.9 C+0.56 C
18999.8 C+0.49 C
19009.8 C+0.47 C
19018.9 C-0.47 C
19028.9 C-0.46 C
19039.0 C-0.36 C
19047.8 C-1.55 C
19058.8 C-0.57 C
19069.6 C+0.27 C
19078.3 C-1.08 C
190810.0 C+0.64 C
19099.2 C-0.09 C
19109.3 C-0.04 C
191110.2 C+0.82 C
19128.6 C-0.76 C
191310.1 C+0.80 C
19149.1 C-0.21 C
19159.2 C-0.10 C
19169.2 C-0.17 C
19177.5 C-1.79 C
19189.7 C+0.32 C
191910.1 C+0.79 C
19208.6 C-0.77 C
192110.9 C+1.52 C
192210.1 C+0.80 C
19238.7 C-0.59 C
19247.8 C-1.49 C
19258.8 C-0.54 C
19268.4 C-0.92 C
19279.6 C+0.26 C
19289.2 C-0.15 C
19298.8 C-0.53 C
19309.7 C+0.38 C
193110.9 C+1.55 C
19329.9 C+0.58 C
193310.4 C+1.03 C
19349.5 C+0.17 C
19359.1 C-0.20 C
19369.1 C-0.19 C
19379.2 C-0.17 C
193810.3 C+0.92 C
193910.2 C+0.83 C
19408.4 C-0.93 C
19419.9 C+0.61 C
19429.4 C+0.09 C
19438.7 C-0.64 C
19449.6 C+0.26 C
19459.0 C-0.38 C
194610.1 C+0.78 C
19478.8 C-0.57 C
19489.0 C-0.32 C
19519.6 C+0.25 C
195210.3 C+0.99 C
195310.9 C+1.56 C
195410.3 C+0.97 C
19579.7 C+0.41 C
19588.5 C-0.79 C
19609.3 C+0.00 C
19619.8 C+0.44 C
19629.1 C-0.24 C
19638.6 C-0.76 C
19659.9 C+0.52 C
19669.9 C+0.55 C
19698.7 C-0.63 C
19719.7 C+0.37 C
19728.8 C-0.57 C
197510.2 C+0.88 C
19769.1 C-0.19 C
19779.6 C+0.30 C
19788.6 C-0.76 C
19798.5 C-0.80 C
19808.6 C-0.74 C
19818.9 C-0.39 C
19829.2 C-0.12 C
19839.8 C+0.47 C
19849.5 C+0.18 C
19859.5 C+0.19 C
19869.8 C+0.48 C
198710.2 C+0.82 C
19889.3 C-0.07 C
199010.5 C+1.21 C
199110.8 C+1.47 C
19939.3 C-0.03 C
19959.8 C+0.47 C
19968.3 C-1.02 C
19978.2 C-1.12 C
199810.6 C+1.28 C
19999.4 C+0.05 C
20008.6 C-0.71 C
20019.6 C+0.22 C
20029.4 C+0.10 C
20038.1 C-1.28 C
20048.6 C-0.71 C
20059.1 C-0.27 C
20069.7 C+0.33 C
20079.1 C-0.24 C
20088.2 C-1.09 C
20098.1 C-1.19 C
20109.1 C-0.24 C
20119.4 C+0.08 C
201210.5 C+1.13 C
20138.4 C-0.92 C
20147.4 C-1.90 C
20158.8 C-0.49 C
20169.9 C+0.60 C
20179.9 C+0.53 C
20189.2 C-0.11 C
20199.2 C-0.10 C
20209.6 C+0.30 C
20219.9 C+0.54 C
20228.8 C-0.57 C
202310.0 C+0.65 C
202410.8 C+1.46 C
20259.1 C-0.25 C

The fitted trend in annual mean temperature here over 1894 to 2025 is 0.00 C (-0.03 to 0.04) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.00 F (-0.06 to 0.06) per decade. The slope is a straight line fitted to 116 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Hiram
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.00 C (-0.03 to 0.04) per decade0.00 F (-0.06 to 0.06) per decade1894 to 2025116Not clearly different from zero
Mean daily maximum0.01 C (-0.02 to 0.05) per decade0.03 F (-0.04 to 0.09) per decade1894 to 2025116Not clearly different from zero
Mean daily minimum-0.01 C (-0.05 to 0.03) per decade-0.02 F (-0.09 to 0.05) per decade1894 to 2025116Not clearly different from zero

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

1893 to 2026
Yearly extremes at Hiram: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.9 C (102.0 F)191833.3 C (91.9 F)134
Coldest night (TNn)-31.7 C (-25.1 F)1994-21.7 C (-7.1 F)134
Wettest day (Rx1day)140.5 mm (5.5 in)197949.3 mm (1.9 in)134
Wettest five days (Rx5day)193.5 mm (7.6 in)191380.7 mm (3.2 in)134
Longest dry spell (CDD)29 days196315 days134

Hottest day (TXx)

Hottest day (TXx) at Hiram by year The hottest day of the year at Hiram, 1893 to 2026. The record is 38.9 C (102.0 F) in 1918, marked on the chart; the median year is 33.3 C (91.9 F). 3032.53537.5401900192019401960198020002020Record: 38.9 C (102.0 F) in 1918
The hottest day of the year at Hiram, 1893 to 2026. The record is 38.9 C (102.0 F) in 1918, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Hiram by year
YearHottest day (TXx)
189334.4 C (93.9 F)
189435.6 C (96.1 F)
189534.4 C (93.9 F)
189631.7 C (89.1 F)
189735.6 C (96.1 F)
189834.4 C (93.9 F)
189935.0 C (95.0 F)
190035.0 C (95.0 F)
190135.0 C (95.0 F)
190231.7 C (89.1 F)
190332.8 C (91.0 F)
190432.8 C (91.0 F)
190531.7 C (89.1 F)
190633.9 C (93.0 F)
190731.1 C (88.0 F)
190833.9 C (93.0 F)
190931.7 C (89.1 F)
191033.3 C (91.9 F)
191136.1 C (97.0 F)
191232.2 C (90.0 F)
191335.0 C (95.0 F)
191434.4 C (93.9 F)
191531.7 C (89.1 F)
191636.7 C (98.1 F)
191733.9 C (93.0 F)
191838.9 C (102.0 F)
191935.0 C (95.0 F)
192031.1 C (88.0 F)
192135.0 C (95.0 F)
192233.3 C (91.9 F)
192332.8 C (91.0 F)
192432.8 C (91.0 F)
192534.4 C (93.9 F)
192635.0 C (95.0 F)
192735.0 C (95.0 F)
192832.2 C (90.0 F)
192932.8 C (91.0 F)
193037.8 C (100.0 F)
193136.1 C (97.0 F)
193233.9 C (93.0 F)
193337.8 C (100.0 F)
193436.1 C (97.0 F)
193535.6 C (96.1 F)
193638.3 C (100.9 F)
193732.8 C (91.0 F)
193832.8 C (91.0 F)
193935.6 C (96.1 F)
194034.4 C (93.9 F)
194133.9 C (93.0 F)
194233.3 C (91.9 F)
194333.3 C (91.9 F)
194435.0 C (95.0 F)
194533.3 C (91.9 F)
194633.3 C (91.9 F)
194733.9 C (93.0 F)
194835.6 C (96.1 F)
194934.4 C (93.9 F)
195033.3 C (91.9 F)
195133.9 C (93.0 F)
195235.6 C (96.1 F)
195338.9 C (102.0 F)
195437.2 C (99.0 F)
195535.0 C (95.0 F)
195632.8 C (91.0 F)
195733.9 C (93.0 F)
195831.1 C (88.0 F)
195933.9 C (93.0 F)
196031.7 C (89.1 F)
196132.2 C (90.0 F)
196233.3 C (91.9 F)
196332.8 C (91.0 F)
196432.8 C (91.0 F)
196533.9 C (93.0 F)
196636.1 C (97.0 F)
196733.9 C (93.0 F)
196832.8 C (91.0 F)
196932.2 C (90.0 F)
197032.2 C (90.0 F)
197136.7 C (98.1 F)
197232.2 C (90.0 F)
197333.9 C (93.0 F)
197433.3 C (91.9 F)
197533.9 C (93.0 F)
197631.1 C (88.0 F)
197733.9 C (93.0 F)
197832.8 C (91.0 F)
197931.1 C (88.0 F)
198034.4 C (93.9 F)
198132.2 C (90.0 F)
198232.2 C (90.0 F)
198333.3 C (91.9 F)
198431.7 C (89.1 F)
198532.8 C (91.0 F)
198632.8 C (91.0 F)
198732.2 C (90.0 F)
198837.8 C (100.0 F)
198932.8 C (91.0 F)
199034.4 C (93.9 F)
199135.0 C (95.0 F)
199230.6 C (87.1 F)
199334.4 C (93.9 F)
199433.9 C (93.0 F)
199535.0 C (95.0 F)
199631.7 C (89.1 F)
199732.2 C (90.0 F)
199832.8 C (91.0 F)
199934.4 C (93.9 F)
200030.0 C (86.0 F)
200134.4 C (93.9 F)
200233.3 C (91.9 F)
200331.1 C (88.0 F)
200430.6 C (87.1 F)
200533.3 C (91.9 F)
200632.8 C (91.0 F)
200735.0 C (95.0 F)
200831.1 C (88.0 F)
200932.8 C (91.0 F)
201033.3 C (91.9 F)
201134.4 C (93.9 F)
201235.6 C (96.1 F)
201332.2 C (90.0 F)
201430.0 C (86.0 F)
201532.2 C (90.0 F)
201633.3 C (91.9 F)
201731.7 C (89.1 F)
201832.2 C (90.0 F)
201931.7 C (89.1 F)
202032.2 C (90.0 F)
202132.8 C (91.0 F)
202235.0 C (95.0 F)
202330.6 C (87.1 F)
202432.2 C (90.0 F)
202533.3 C (91.9 F)
202634.4 C (93.9 F)

Coldest night (TNn)

Coldest night (TNn) at Hiram by year The coldest night of the year at Hiram, 1893 to 2026. The record is -31.7 C (-25.1 F) in 1994, marked on the chart; the median year is -21.7 C (-7.1 F). -35-30-25-20-15-101900192019401960198020002020Record: -31.7 C (-25.1 F) in 1994
The coldest night of the year at Hiram, 1893 to 2026. The record is -31.7 C (-25.1 F) in 1994, marked on the chart; the median year is -21.7 C (-7.1 F).
Coldest night (TNn) at Hiram by year
YearColdest night (TNn)
1893-16.7 C (1.9 F)
1894-22.2 C (-8.0 F)
1895-25.6 C (-14.1 F)
1896-22.2 C (-8.0 F)
1897-18.3 C (-0.9 F)
1898-23.3 C (-9.9 F)
1899-30.0 C (-22.0 F)
1900-22.2 C (-8.0 F)
1901-23.9 C (-11.0 F)
1902-23.9 C (-11.0 F)
1903-25.0 C (-13.0 F)
1904-24.4 C (-11.9 F)
1905-25.6 C (-14.1 F)
1906-20.6 C (-5.1 F)
1907-20.0 C (-4.0 F)
1908-20.0 C (-4.0 F)
1909-18.3 C (-0.9 F)
1910-18.9 C (-2.0 F)
1911-16.1 C (3.0 F)
1912-27.8 C (-18.0 F)
1913-18.9 C (-2.0 F)
1914-24.4 C (-11.9 F)
1915-19.4 C (-2.9 F)
1916-20.0 C (-4.0 F)
1917-26.7 C (-16.1 F)
1918-28.9 C (-20.0 F)
1919-18.9 C (-2.0 F)
1920-20.0 C (-4.0 F)
1921-16.1 C (3.0 F)
1922-18.9 C (-2.0 F)
1923-20.6 C (-5.1 F)
1924-23.9 C (-11.0 F)
1925-22.8 C (-9.0 F)
1926-23.9 C (-11.0 F)
1927-23.9 C (-11.0 F)
1928-20.0 C (-4.0 F)
1929-22.8 C (-9.0 F)
1930-22.8 C (-9.0 F)
1931-15.0 C (5.0 F)
1932-18.3 C (-0.9 F)
1933-22.2 C (-8.0 F)
1934-30.0 C (-22.0 F)
1935-21.1 C (-6.0 F)
1936-26.1 C (-15.0 F)
1937-15.6 C (3.9 F)
1938-19.4 C (-2.9 F)
1939-22.2 C (-8.0 F)
1940-26.1 C (-15.0 F)
1941-15.6 C (3.9 F)
1942-22.8 C (-9.0 F)
1943-21.7 C (-7.1 F)
1944-18.9 C (-2.0 F)
1945-22.2 C (-8.0 F)
1946-20.6 C (-5.1 F)
1947-21.1 C (-6.0 F)
1948-23.3 C (-9.9 F)
1949-14.4 C (6.1 F)
1950-20.0 C (-4.0 F)
1951-23.9 C (-11.0 F)
1952-17.2 C (1.0 F)
1953-16.7 C (1.9 F)
1954-17.2 C (1.0 F)
1955-20.0 C (-4.0 F)
1956-15.0 C (5.0 F)
1957-22.8 C (-9.0 F)
1958-22.8 C (-9.0 F)
1959-17.2 C (1.0 F)
1960-21.7 C (-7.1 F)
1961-23.3 C (-9.9 F)
1962-25.6 C (-14.1 F)
1963-30.6 C (-23.1 F)
1964-20.0 C (-4.0 F)
1965-20.0 C (-4.0 F)
1966-21.1 C (-6.0 F)
1967-19.4 C (-2.9 F)
1968-23.3 C (-9.9 F)
1969-21.1 C (-6.0 F)
1970-24.4 C (-11.9 F)
1971-25.0 C (-13.0 F)
1972-26.7 C (-16.1 F)
1973-16.7 C (1.9 F)
1974-17.8 C (0.0 F)
1975-22.2 C (-8.0 F)
1976-22.2 C (-8.0 F)
1977-26.1 C (-15.0 F)
1978-19.4 C (-2.9 F)
1979-22.2 C (-8.0 F)
1980-20.0 C (-4.0 F)
1981-21.7 C (-7.1 F)
1982-28.9 C (-20.0 F)
1983-25.0 C (-13.0 F)
1984-26.7 C (-16.1 F)
1985-28.9 C (-20.0 F)
1986-20.0 C (-4.0 F)
1987-20.0 C (-4.0 F)
1988-20.6 C (-5.1 F)
1989-25.6 C (-14.1 F)
1990-21.1 C (-6.0 F)
1991-17.8 C (0.0 F)
1992-19.4 C (-2.9 F)
1993-21.7 C (-7.1 F)
1994-31.7 C (-25.1 F)
1995-21.1 C (-6.0 F)
1996-23.3 C (-9.9 F)
1997-25.0 C (-13.0 F)
1998-16.7 C (1.9 F)
1999-20.6 C (-5.1 F)
2000-22.2 C (-8.0 F)
2001-16.1 C (3.0 F)
2002-16.7 C (1.9 F)
2003-26.1 C (-15.0 F)
2004-24.4 C (-11.9 F)
2005-21.7 C (-7.1 F)
2006-17.2 C (1.0 F)
2007-22.8 C (-9.0 F)
2008-19.4 C (-2.9 F)
2009-27.2 C (-17.0 F)
2010-19.4 C (-2.9 F)
2011-22.8 C (-9.0 F)
2012-16.7 C (1.9 F)
2013-17.2 C (1.0 F)
2014-27.8 C (-18.0 F)
2015-31.1 C (-24.0 F)
2016-22.8 C (-9.0 F)
2017-19.4 C (-2.9 F)
2018-24.4 C (-11.9 F)
2019-21.7 C (-7.1 F)
2020-17.8 C (0.0 F)
2021-19.4 C (-2.9 F)
2022-22.8 C (-9.0 F)
2023-18.3 C (-0.9 F)
2024-18.9 C (-2.0 F)
2025-25.6 C (-14.1 F)
2026-25.0 C (-13.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Hiram by year The wettest day of the year at Hiram, 1893 to 2026. The record is 140.5 mm (5.5 in) in 1979, marked on the chart; the median year is 49.3 mm (1.9 in). 0501001501900192019401960198020002020Record: 140.5 mm (5.5 in) in 1979
The wettest day of the year at Hiram, 1893 to 2026. The record is 140.5 mm (5.5 in) in 1979, marked on the chart; the median year is 49.3 mm (1.9 in).
Wettest day (Rx1day) at Hiram by year
YearWettest day (Rx1day)
189382.6 mm (3.3 in)
189457.9 mm (2.3 in)
189542.4 mm (1.7 in)
189639.1 mm (1.5 in)
189741.9 mm (1.6 in)
189835.6 mm (1.4 in)
189938.6 mm (1.5 in)
190048.3 mm (1.9 in)
190140.4 mm (1.6 in)
190256.4 mm (2.2 in)
190364.0 mm (2.5 in)
190445.2 mm (1.8 in)
190561.5 mm (2.4 in)
190666.3 mm (2.6 in)
190736.1 mm (1.4 in)
190830.2 mm (1.2 in)
190940.9 mm (1.6 in)
191041.4 mm (1.6 in)
191150.8 mm (2.0 in)
191260.5 mm (2.4 in)
191378.7 mm (3.1 in)
191455.4 mm (2.2 in)
191533.5 mm (1.3 in)
191640.4 mm (1.6 in)
191737.3 mm (1.5 in)
191839.4 mm (1.6 in)
191992.7 mm (3.6 in)
192051.6 mm (2.0 in)
192157.9 mm (2.3 in)
192240.9 mm (1.6 in)
192345.7 mm (1.8 in)
192460.7 mm (2.4 in)
192541.9 mm (1.6 in)
192658.4 mm (2.3 in)
192750.8 mm (2.0 in)
192847.2 mm (1.9 in)
192958.4 mm (2.3 in)
193035.1 mm (1.4 in)
193138.4 mm (1.5 in)
193241.9 mm (1.6 in)
193336.1 mm (1.4 in)
193447.8 mm (1.9 in)
193594.0 mm (3.7 in)
193631.2 mm (1.2 in)
193759.7 mm (2.4 in)
193848.3 mm (1.9 in)
193935.3 mm (1.4 in)
194053.8 mm (2.1 in)
194157.4 mm (2.3 in)
194232.3 mm (1.3 in)
194350.5 mm (2.0 in)
194432.8 mm (1.3 in)
194554.4 mm (2.1 in)
194640.1 mm (1.6 in)
194751.1 mm (2.0 in)
194835.3 mm (1.4 in)
194932.5 mm (1.3 in)
195053.3 mm (2.1 in)
195137.6 mm (1.5 in)
195243.4 mm (1.7 in)
195322.9 mm (0.9 in)
195468.3 mm (2.7 in)
195536.3 mm (1.4 in)
195635.6 mm (1.4 in)
195763.5 mm (2.5 in)
195849.5 mm (1.9 in)
195963.5 mm (2.5 in)
196057.7 mm (2.3 in)
196133.0 mm (1.3 in)
196273.7 mm (2.9 in)
196349.3 mm (1.9 in)
196435.6 mm (1.4 in)
196547.5 mm (1.9 in)
196630.5 mm (1.2 in)
196740.4 mm (1.6 in)
196844.5 mm (1.8 in)
196997.0 mm (3.8 in)
197044.5 mm (1.8 in)
1971107.7 mm (4.2 in)
1972127.0 mm (5.0 in)
197348.3 mm (1.9 in)
197450.3 mm (2.0 in)
197546.5 mm (1.8 in)
197635.3 mm (1.4 in)
197736.8 mm (1.4 in)
197830.5 mm (1.2 in)
1979140.5 mm (5.5 in)
198051.3 mm (2.0 in)
198155.1 mm (2.2 in)
198243.4 mm (1.7 in)
198381.8 mm (3.2 in)
198437.1 mm (1.5 in)
198551.6 mm (2.0 in)
198648.5 mm (1.9 in)
198773.7 mm (2.9 in)
198883.8 mm (3.3 in)
198942.4 mm (1.7 in)
199082.0 mm (3.2 in)
199149.3 mm (1.9 in)
199249.3 mm (1.9 in)
199340.1 mm (1.6 in)
199472.9 mm (2.9 in)
199559.7 mm (2.4 in)
199668.3 mm (2.7 in)
199748.3 mm (1.9 in)
199839.4 mm (1.6 in)
199961.2 mm (2.4 in)
200055.6 mm (2.2 in)
200136.6 mm (1.4 in)
200250.8 mm (2.0 in)
2003102.9 mm (4.1 in)
200451.6 mm (2.0 in)
200586.9 mm (3.4 in)
200674.4 mm (2.9 in)
200755.9 mm (2.2 in)
200841.7 mm (1.6 in)
200974.4 mm (2.9 in)
201040.9 mm (1.6 in)
201166.0 mm (2.6 in)
201239.4 mm (1.6 in)
201382.6 mm (3.3 in)
201439.1 mm (1.5 in)
201550.8 mm (2.0 in)
201641.1 mm (1.6 in)
201736.3 mm (1.4 in)
201880.8 mm (3.2 in)
201964.0 mm (2.5 in)
202065.5 mm (2.6 in)
202162.2 mm (2.4 in)
202234.8 mm (1.4 in)
202357.9 mm (2.3 in)
202445.7 mm (1.8 in)
202559.2 mm (2.3 in)
202653.3 mm (2.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Hiram by year The wettest five days of the year at Hiram, 1893 to 2026. The record is 193.5 mm (7.6 in) in 1913, marked on the chart; the median year is 80.7 mm (3.2 in). 0501001502001900192019401960198020002020Record: 193.5 mm (7.6 in) in 1913
The wettest five days of the year at Hiram, 1893 to 2026. The record is 193.5 mm (7.6 in) in 1913, marked on the chart; the median year is 80.7 mm (3.2 in).
Wettest five days (Rx5day) at Hiram by year
YearWettest five days (Rx5day)
189337.8 mm (1.5 in)
189427.1 mm (1.1 in)
189562.5 mm (2.5 in)
189659.2 mm (2.3 in)
189755.1 mm (2.2 in)
189871.6 mm (2.8 in)
189985.4 mm (3.4 in)
190061.5 mm (2.4 in)
190182.1 mm (3.2 in)
1902113.1 mm (4.5 in)
190392.4 mm (3.6 in)
190486.6 mm (3.4 in)
190564.3 mm (2.5 in)
1906136.2 mm (5.4 in)
190781.4 mm (3.2 in)
190857.1 mm (2.2 in)
190987.6 mm (3.4 in)
191065.3 mm (2.6 in)
1911110.0 mm (4.3 in)
191280.8 mm (3.2 in)
1913193.5 mm (7.6 in)
191483.4 mm (3.3 in)
191562.5 mm (2.5 in)
191651.9 mm (2.0 in)
191748.2 mm (1.9 in)
191875.0 mm (3.0 in)
191994.5 mm (3.7 in)
192081.3 mm (3.2 in)
192171.1 mm (2.8 in)
192263.3 mm (2.5 in)
192375.8 mm (3.0 in)
1924120.7 mm (4.8 in)
192595.3 mm (3.8 in)
192691.4 mm (3.6 in)
192776.5 mm (3.0 in)
192886.3 mm (3.4 in)
192983.1 mm (3.3 in)
193059.2 mm (2.3 in)
193164.1 mm (2.5 in)
193268.9 mm (2.7 in)
193342.4 mm (1.7 in)
193458.3 mm (2.3 in)
1935151.1 mm (5.9 in)
193653.5 mm (2.1 in)
193787.4 mm (3.4 in)
193887.6 mm (3.4 in)
193967.9 mm (2.7 in)
194081.5 mm (3.2 in)
194184.3 mm (3.3 in)
194267.8 mm (2.7 in)
194383.1 mm (3.3 in)
194464.9 mm (2.6 in)
194572.9 mm (2.9 in)
194651.6 mm (2.0 in)
194786.1 mm (3.4 in)
194864.1 mm (2.5 in)
194977.2 mm (3.0 in)
195080.7 mm (3.2 in)
195166.5 mm (2.6 in)
195264.2 mm (2.5 in)
195340.9 mm (1.6 in)
1954122.9 mm (4.8 in)
195572.7 mm (2.9 in)
195694.2 mm (3.7 in)
195798.3 mm (3.9 in)
1958118.6 mm (4.7 in)
195993.9 mm (3.7 in)
196088.6 mm (3.5 in)
196176.7 mm (3.0 in)
196291.3 mm (3.6 in)
196373.8 mm (2.9 in)
196491.3 mm (3.6 in)
196571.4 mm (2.8 in)
196676.2 mm (3.0 in)
196762.2 mm (2.4 in)
1968103.6 mm (4.1 in)
1969118.9 mm (4.7 in)
197067.6 mm (2.7 in)
1971130.6 mm (5.1 in)
1972191.3 mm (7.5 in)
197388.4 mm (3.5 in)
197475.5 mm (3.0 in)
197577.3 mm (3.0 in)
197678.8 mm (3.1 in)
197773.8 mm (2.9 in)
197854.1 mm (2.1 in)
1979161.1 mm (6.3 in)
198079.2 mm (3.1 in)
198173.7 mm (2.9 in)
198278.7 mm (3.1 in)
1983112.8 mm (4.4 in)
198457.6 mm (2.3 in)
1985132.2 mm (5.2 in)
198675.9 mm (3.0 in)
1987100.8 mm (4.0 in)
198890.2 mm (3.6 in)
198976.2 mm (3.0 in)
1990108.2 mm (4.3 in)
199165.3 mm (2.6 in)
199277.1 mm (3.0 in)
199390.4 mm (3.6 in)
1994114.1 mm (4.5 in)
199595.8 mm (3.8 in)
199681.6 mm (3.2 in)
199780.7 mm (3.2 in)
199866.0 mm (2.6 in)
199967.3 mm (2.6 in)
200073.5 mm (2.9 in)
200158.4 mm (2.3 in)
200277.1 mm (3.0 in)
2003151.6 mm (6.0 in)
2004100.2 mm (3.9 in)
200591.2 mm (3.6 in)
2006115.3 mm (4.5 in)
200784.6 mm (3.3 in)
200873.6 mm (2.9 in)
2009112.7 mm (4.4 in)
201063.3 mm (2.5 in)
2011125.2 mm (4.9 in)
2012114.5 mm (4.5 in)
2013160.6 mm (6.3 in)
201463.2 mm (2.5 in)
201594.3 mm (3.7 in)
201678.8 mm (3.1 in)
201769.6 mm (2.7 in)
2018113.3 mm (4.5 in)
201989.9 mm (3.5 in)
202080.0 mm (3.1 in)
2021118.7 mm (4.7 in)
202264.3 mm (2.5 in)
202398.6 mm (3.9 in)
202493.8 mm (3.7 in)
202586.4 mm (3.4 in)
202685.5 mm (3.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Hiram by year The longest dry spell of the year at Hiram, 1893 to 2026. The record is 29 days in 1963, marked on the chart; the median year is 15 days. 01020301900192019401960198020002020Record: 29 days in 1963
The longest dry spell of the year at Hiram, 1893 to 2026. The record is 29 days in 1963, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Hiram by year
YearLongest dry spell (CDD)
18932 days
18943 days
18952 days
189610 days
18975 days
18989 days
189923 days
190020 days
190118 days
190211 days
190318 days
190412 days
190515 days
190611 days
190710 days
190815 days
190912 days
191015 days
191111 days
191216 days
191323 days
191416 days
191516 days
191622 days
191719 days
191824 days
191916 days
192022 days
192116 days
192225 days
192316 days
192414 days
192515 days
192614 days
192718 days
192825 days
192913 days
193019 days
193118 days
193215 days
193323 days
193420 days
193515 days
193618 days
193710 days
193817 days
193914 days
194011 days
194118 days
194219 days
194326 days
194418 days
19459 days
194621 days
194718 days
194818 days
194917 days
195012 days
195115 days
19529 days
195325 days
195417 days
195515 days
195614 days
195714 days
195822 days
195914 days
196013 days
196116 days
196217 days
196329 days
196419 days
196513 days
196615 days
196716 days
196810 days
196914 days
197015 days
197115 days
197214 days
197313 days
197410 days
197514 days
197614 days
197717 days
197811 days
197913 days
198013 days
198112 days
198216 days
198322 days
198412 days
198512 days
198614 days
198715 days
198814 days
198913 days
199016 days
199118 days
199212 days
199320 days
199414 days
199523 days
199613 days
199712 days
199816 days
199921 days
200010 days
200113 days
200212 days
200312 days
200413 days
200515 days
200611 days
200714 days
200813 days
200912 days
201012 days
201112 days
201218 days
201318 days
201410 days
201513 days
201610 days
201720 days
201814 days
201914 days
202014 days
202117 days
202214 days
202326 days
202421 days
202520 days
202618 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

116 years with a frost

Across 116 years with a frost, the median last spring frost at Hiram falls on 2 May and the median first autumn frost on 17 October, which leaves a median of 167 days between them.

In 1996 to 2025 the median growing season was 167 days. That is 5 days fewer than in 1894 to 1925.

Fitted over all years, the growing season changes by +0.5 days per decade at this station.

Frost dates and growing season at Hiram
MeasureMedian, all yearsEarliest period (1894 to 1925)Recent period (1996 to 2025)Recent against earliestFitted trend
Last spring frost2 May3 May30 April3 days earlier-0.1 days per decade
First autumn frost17 October19 October19 Octoberno change+0.4 days per decade
Growing days167 days172 days167 days5 days fewer+0.5 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

123 years, 1899 to 2025

A day with at least 48.9 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 127.2 mm (5.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Hiram: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years48.9 mm (1.9 in)
5 years65.2 mm (2.6 in)
10 years77.7 mm (3.1 in)
25 years95.6 mm (3.8 in)
50 years110.7 mm (4.4 in)
100 years127.2 mm (5.0 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 123 years of values from 1899 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: 140.5 mm (5.5 in) in 1979; 127.0 mm (5.0 in) in 1972; 107.7 mm (4.2 in) in 1971.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Hiram, at 1920. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1920 ran 0.4 C (0.6 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Hiram, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1920-0.3-0.6likely5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Climate Twins

2011 to 2025 against 1961 to 1990

Over 2011 to 2025, Hiram had a mean temperature of 9.4 C (48.9 F) and 1,162.3 mm (45.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Suffern (United States, 585 km away), Confluence 1 SW Dam (United States, 225 km away) and Butler 2 SW (United States, 115 km away).

Climate twins of Hiram: 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
SuffernUnited States585 km (364 mi)9.6 C (49.3 F)1,178.8 mm (46.4 in)0.62
Confluence 1 SW DamUnited States225 km (140 mi)9.3 C (48.7 F)1,117.3 mm (44.0 in)0.63
Butler 2 SWUnited States115 km (71 mi)9.1 C (48.4 F)1,088.5 mm (42.9 in)0.67

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 Hiram standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Hiram 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).