Built 2026-10-17 (17 October 2026)

La Harpe Weather Records (USC00114823)

Record envelope, standing records and threshold days for La Harpe (USC00114823), Illinois, United States, with 132 years of record.

Key Facts for La Harpe

  • La Harpe (USC00114823) is a weather station in Illinois, United States at 40.58 latitude and -90.98 longitude, 207 m (678 ft) above sea level.
  • The station reports from 1895 to 2026, 132 years of record.
  • 1,464 records set at La Harpe still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • La Harpe set a daily record high minimum temperature of 22.2 C (72.0 F) on 5 September 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Illinois, United States, 40.58 latitude, -90.98 longitude.
  • Elevation: 207 m (678 ft).
  • Period of record: 1895 to 2026, 132 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

5 days at or beyond a record
Daily record high and record low at La Harpe, with 2026 drawn through them The band shows the record high and record low for each calendar day at La Harpe. The lines show the 2026 daily maximum and minimum. 5 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at La Harpe. The lines show the 2026 daily maximum and minimum. 5 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at La Harpe, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan21.1 C (70.0 F)-30.6 C (-23.1 F)16.1 C (61.0 F)-22.8 C (-9.0 F)
Feb25.0 C (77.0 F)-34.4 C (-29.9 F)22.8 C (73.0 F)-17.2 C (1.0 F)
Mar31.1 C (88.0 F)-25.0 C (-13.0 F)30.6 C (87.1 F)-15.6 C (3.9 F)
Apr34.4 C (93.9 F)-15.0 C (5.0 F)28.9 C (84.0 F)-1.1 C (30.0 F)
May40.6 C (105.1 F)-3.3 C (26.1 F)31.7 C (89.1 F)1.1 C (34.0 F)
Jun42.2 C (108.0 F)2.8 C (37.0 F)32.8 C (91.0 F)10.6 C (51.1 F)
Jul43.3 C (109.9 F)5.6 C (42.1 F)34.4 C (93.9 F)12.8 C (55.0 F)
Aug45.0 C (113.0 F)2.2 C (36.0 F)32.8 C (91.0 F)12.2 C (54.0 F)
Sep39.4 C (102.9 F)-5.0 C (23.0 F)36.1 C (97.0 F)9.4 C (48.9 F)
Oct35.6 C (96.1 F)-17.2 C (1.0 F)31.1 C (88.0 F)6.1 C (43.0 F)
Nov28.3 C (82.9 F)-19.4 C (-2.9 F)n/an/a
Dec22.8 C (73.0 F)-32.2 C (-26.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at La Harpe by the year they were set 1,464 records at La Harpe still stand. 1934 holds the most, with 49. 02040601895: 141896: 191897: 201898: 71899: 191900: 71901: 201902: 151903: 81904: 101905: 161906: 161907: 161908: 41909: 131910: 171911: 221912: 151913: 291914: 91915: 201916: 51917: 161918: 161919: 81920: 91921: 91922: 91923: 121924: 151925: 231926: 41927: 71928: 181929: 141930: 241931: 161932: 91933: 141934: 491935: 121936: 481937: 101938: 101939: 121940: 121941: 81942: 91943: 81944: 121945: 161946: 111947: 31948: 71949: 91950: 241951: 101952: 131953: 91954: 61955: 81956: 101957: 71958: 71959: 91960: 161961: 21962: 121963: 171964: 121965: 111966: 91967: 61968: 41969: 41970: 91971: 91972: 61973: 61974: 101975: 61976: 81977: 101978: 31979: 61980: 41981: 51982: 81983: 141984: 51985: 111986: 81987: 71988: 101989: 221990: 121991: 181992: 71993: 51994: 41995: 51996: 131997: 71998: 81999: 82000: 62001: 22002: 132003: 12004: 132005: 62006: 72007: 92008: 32009: 102010: 62011: 72012: 222013: 122014: 112015: 52016: 102017: 162018: 162019: 112020: 72021: 92022: 82023: 52024: 92025: 42026: 61895190919231937195119651979199320072021
1,464 records at La Harpe still stand. 1934 holds the most, with 49.
Standing records at La Harpe by the year they were set
Year setStanding records
189514
189619
189720
18987
189919
19007
190120
190215
19038
190410
190516
190616
190716
19084
190913
191017
191122
191215
191329
19149
191520
19165
191716
191816
19198
19209
19219
19229
192312
192415
192523
19264
19277
192818
192914
193024
193116
19329
193314
193449
193512
193648
193710
193810
193912
194012
19418
19429
19438
194412
194516
194611
19473
19487
19499
195024
195110
195213
19539
19546
19558
195610
19577
19587
19599
196016
19612
196212
196317
196412
196511
19669
19676
19684
19694
19709
19719
19726
19736
197410
19756
19768
197710
19783
19796
19804
19815
19828
198314
19845
198511
19868
19877
198810
198922
199012
199118
19927
19935
19944
19955
199613
19977
19988
19998
20006
20012
200213
20031
200413
20056
20067
20079
20083
200910
20106
20117
201222
201312
201411
20155
201610
201716
201816
201911
20207
20219
20228
20235
20249
20254
20266

All-Time Record Progression

7 new records
When La Harpe set new all-time records 7 all-time records were set at La Harpe between 27 July 1930 and 22 December 1989. Each dot is a new record. Record high minimum temperatureRecord high maximum temperatureRecord snow depthRecord low maximum temperature27 July 1930: Record high minimum temperature 28.9 C (84.0 F)20 July 1934: Record high maximum temperature 42.8 C (109.0 F)8 August 1934: Record high maximum temperature 43.9 C (111.0 F)9 August 1934: Record high maximum temperature 45.0 C (113.0 F)14 January 1979: Record snow depth 55.9 cm (22.0 in)24 December 1983: Record low maximum temperature -22.2 C (-8.0 F)22 December 1989: Record low maximum temperature -23.3 C (-9.9 F)1930194019501960197019801990
7 all-time records were set at La Harpe between 27 July 1930 and 22 December 1989. Each dot is a new record.
When La Harpe set new all-time records
DateKindDetail
1930-07-27Record high minimum temperatureRecord high minimum temperature 28.9 C (84.0 F)
1934-07-20Record high maximum temperatureRecord high maximum temperature 42.8 C (109.0 F)
1934-08-08Record high maximum temperatureRecord high maximum temperature 43.9 C (111.0 F)
1934-08-09Record high maximum temperatureRecord high maximum temperature 45.0 C (113.0 F)
1979-01-14Record snow depthRecord snow depth 55.9 cm (22.0 in)
1983-12-24Record low maximum temperatureRecord low maximum temperature -22.2 C (-8.0 F)
1989-12-22Record low maximum temperatureRecord low maximum temperature -23.3 C (-9.9 F)

Wettest Day of Each Month

Jun: 260.4 mm (10.3 in)
Record daily precipitation for each month at La Harpe The wettest day on record for each calendar month at La Harpe. The most was 260.4 mm (10.3 in) on 10 June 1905. 0100200300 Jan: 101.6 mm (4.0 in), 19 January 1907 Jan Feb: 86.6 mm (3.4 in), 21 February 1997 Feb Mar: 129.0 mm (5.1 in), 4 March 1985 Mar Apr: 132.3 mm (5.2 in), 18 April 2013 Apr May: 111.8 mm (4.4 in), 21 May 1899 May Jun: 260.4 mm (10.3 in), 10 June 1905 Jun Jul: 127.5 mm (5.0 in), 25 July 1948 Jul Aug: 138.4 mm (5.4 in), 14 August 1898 Aug Sep: 139.2 mm (5.5 in), 10 September 2014 Sep Oct: 120.4 mm (4.7 in), 3 October 1986 Oct Nov: 81.3 mm (3.2 in), 30 November 2006 Nov Dec: 85.6 mm (3.4 in), 10 December 2003 Dec
The wettest day on record for each calendar month at La Harpe. The most was 260.4 mm (10.3 in) on 10 June 1905.
Record daily precipitation for each month at La Harpe
MonthRecord daily precipitation (mm)Date
Jan101.6 mm (4.0 in)19 January 1907
Feb86.6 mm (3.4 in)21 February 1997
Mar129.0 mm (5.1 in)4 March 1985
Apr132.3 mm (5.2 in)18 April 2013
May111.8 mm (4.4 in)21 May 1899
Jun260.4 mm (10.3 in)10 June 1905
Jul127.5 mm (5.0 in)25 July 1948
Aug138.4 mm (5.4 in)14 August 1898
Sep139.2 mm (5.5 in)10 September 2014
Oct120.4 mm (4.7 in)3 October 1986
Nov81.3 mm (3.2 in)30 November 2006
Dec85.6 mm (3.4 in)10 December 2003

Period of Record Coverage

1895 to 2026
Days with data per year at La Harpe 132 years of record at La Harpe, 1895 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1895, 1896, 2026. 1895: 227 of 365 days1896: 298 of 366 days1897: 354 of 365 days1898: 352 of 365 days1899: 332 of 365 days1900: 363 of 365 days1901: 364 of 365 days1902: 365 of 365 days1903: 365 of 365 days1904: 366 of 366 days1905: 358 of 365 days1906: 363 of 365 days1907: 354 of 365 days1908: 361 of 366 days1909: 364 of 365 days1910: 365 of 365 days1911: 360 of 365 days1912: 363 of 366 days1913: 364 of 365 days1914: 364 of 365 days1915: 365 of 365 days1916: 364 of 366 days1917: 356 of 365 days1918: 332 of 365 days1919: 364 of 365 days1920: 364 of 366 days1921: 333 of 365 days1922: 364 of 365 days1923: 332 of 365 days1924: 354 of 366 days1925: 363 of 365 days1926: 365 of 365 days1927: 365 of 365 days1928: 366 of 366 days1929: 364 of 365 days1930: 364 of 365 days1931: 363 of 365 days1932: 362 of 366 days1933: 363 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: 364 of 365 days1944: 366 of 366 days1945: 363 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 366 of 366 days1949: 364 of 365 days1950: 362 of 365 days1951: 364 of 365 days1952: 361 of 366 days1953: 363 of 365 days1954: 364 of 365 days1955: 364 of 365 days1956: 366 of 366 days1957: 363 of 365 days1958: 365 of 365 days1959: 363 of 365 days1960: 362 of 366 days1961: 361 of 365 days1962: 363 of 365 days1963: 361 of 365 days1964: 361 of 366 days1965: 360 of 365 days1966: 363 of 365 days1967: 330 of 365 days1968: 365 of 366 days1969: 361 of 365 days1970: 363 of 365 days1971: 364 of 365 days1972: 365 of 366 days1973: 359 of 365 days1974: 365 of 365 days1975: 363 of 365 days1976: 365 of 366 days1977: 364 of 365 days1978: 365 of 365 days1979: 363 of 365 days1980: 365 of 366 days1981: 365 of 365 days1982: 360 of 365 days1983: 364 of 365 days1984: 365 of 366 days1985: 365 of 365 days1986: 337 of 365 days1987: 364 of 365 days1988: 365 of 366 days1989: 364 of 365 days1990: 364 of 365 days1991: 364 of 365 days1992: 365 of 366 days1993: 363 of 365 days1994: 362 of 365 days1995: 363 of 365 days1996: 363 of 366 days1997: 364 of 365 days1998: 364 of 365 days1999: 364 of 365 days2000: 365 of 366 days2001: 364 of 365 days2002: 363 of 365 days2003: 365 of 365 days2004: 365 of 366 days2005: 363 of 365 days2006: 364 of 365 days2007: 365 of 365 days2008: 356 of 366 days2009: 352 of 365 days2010: 364 of 365 days2011: 351 of 365 days2012: 364 of 366 days2013: 365 of 365 days2014: 364 of 365 days2015: 360 of 365 days2016: 366 of 366 days2017: 359 of 365 days2018: 361 of 365 days2019: 361 of 365 days2020: 363 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 361 of 365 days2024: 365 of 366 days2025: 353 of 365 days2026: 285 of 365 days1900192019401960198020002020
132 years of record at La Harpe, 1895 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1895, 1896, 2026.
Days with data per year at La Harpe
YearDays with dataShare of yearComplete
189522762%No
189629881%No
189735497%Yes
189835296%Yes
189933291%Yes
190036399%Yes
1901364100%Yes
1902365100%Yes
1903365100%Yes
1904366100%Yes
190535898%Yes
190636399%Yes
190735497%Yes
190836199%Yes
1909364100%Yes
1910365100%Yes
191136099%Yes
191236399%Yes
1913364100%Yes
1914364100%Yes
1915365100%Yes
191636499%Yes
191735698%Yes
191833291%Yes
1919364100%Yes
192036499%Yes
192133391%Yes
1922364100%Yes
192333291%Yes
192435497%Yes
192536399%Yes
1926365100%Yes
1927365100%Yes
1928366100%Yes
1929364100%Yes
1930364100%Yes
193136399%Yes
193236299%Yes
193336399%Yes
1934365100%Yes
1935365100%Yes
1936366100%Yes
1937365100%Yes
1938365100%Yes
1939365100%Yes
1940366100%Yes
1941365100%Yes
1942365100%Yes
1943364100%Yes
1944366100%Yes
194536399%Yes
1946365100%Yes
1947365100%Yes
1948366100%Yes
1949364100%Yes
195036299%Yes
1951364100%Yes
195236199%Yes
195336399%Yes
1954364100%Yes
1955364100%Yes
1956366100%Yes
195736399%Yes
1958365100%Yes
195936399%Yes
196036299%Yes
196136199%Yes
196236399%Yes
196336199%Yes
196436199%Yes
196536099%Yes
196636399%Yes
196733090%Yes
1968365100%Yes
196936199%Yes
197036399%Yes
1971364100%Yes
1972365100%Yes
197335998%Yes
1974365100%Yes
197536399%Yes
1976365100%Yes
1977364100%Yes
1978365100%Yes
197936399%Yes
1980365100%Yes
1981365100%Yes
198236099%Yes
1983364100%Yes
1984365100%Yes
1985365100%Yes
198633792%Yes
1987364100%Yes
1988365100%Yes
1989364100%Yes
1990364100%Yes
1991364100%Yes
1992365100%Yes
199336399%Yes
199436299%Yes
199536399%Yes
199636399%Yes
1997364100%Yes
1998364100%Yes
1999364100%Yes
2000365100%Yes
2001364100%Yes
200236399%Yes
2003365100%Yes
2004365100%Yes
200536399%Yes
2006364100%Yes
2007365100%Yes
200835697%Yes
200935296%Yes
2010364100%Yes
201135196%Yes
201236499%Yes
2013365100%Yes
2014364100%Yes
201536099%Yes
2016366100%Yes
201735998%Yes
201836199%Yes
201936199%Yes
202036399%Yes
2021365100%Yes
2022365100%Yes
202336199%Yes
2024365100%Yes
202535397%Yes
202628578%No

Latest Records

20
Latest records at La Harpe
DateStationRecordValueBeat old record byOld record stoodSignificance
5 September 2026La Harpe, USdaily high min (Provisional)22.2 C (72.0 F)0.5 C (0.9 F)100 years40 of 100 (Notable)
15 August 2026La Harpe, USdaily rain129.5 mm (5.1 in)63.2 mm (2.5 in)73 years71 of 100 (Major)
6 August 2026La Harpe, USdaily low max (Tie)20.6 C (69.1 F)tie32 years4 of 100 (Routine)
22 June 2026La Harpe, USdaily low max17.8 C (64.0 F)2.2 C (4.0 F)7 years17 of 100 (Routine)
11 June 2026La Harpe, USdaily rain48.3 mm (1.9 in)13.2 mm (0.5 in)71 years38 of 100 (Notable)
14 April 2026La Harpe, USdaily high min16.7 C (62.1 F)1.1 C (2.0 F)84 years37 of 100 (Notable)
31 March 2026La Harpe, USdaily high max28.9 C (84.0 F)1.1 C (2.0 F)40 years23 of 100 (Routine)
27 March 2026La Harpe, USdaily high max30.6 C (87.1 F)1.2 C (2.2 F)116 years41 of 100 (Notable)
22 March 2026La Harpe, USdaily high max29.4 C (84.9 F)2.2 C (4.0 F)13 years17 of 100 (Routine)
11 March 2026La Harpe, USdaily high max28.3 C (82.9 F)1.6 C (2.9 F)53 years28 of 100 (Routine)
10 March 2026La Harpe, USdaily high max (Tie)23.9 C (75.0 F)tie71 years7 of 100 (Routine)
10 March 2026La Harpe, USdaily high min (Tie)8.9 C (48.0 F)tie4 years2 of 100 (Routine)
13 December 2025La Harpe, USdaily snow depth (Tie)15.2 cm (6.0 in)tie32 years4 of 100 (Routine)
5 December 2025La Harpe, USdaily low max-6.7 C (19.9 F)1.1 C (2.0 F)129 years41 of 100 (Notable)
2 December 2025La Harpe, USdaily snow depth27.9 cm (11.0 in)7.6 cm (3.0 in)51 years36 of 100 (Notable)
2 December 2025La Harpe, USdaily snowfall10.2 cm (4.0 in)2.6 cm (1.0 in)60 years34 of 100 (Routine)
1 December 2025La Harpe, USdaily low max (Tie)-5.6 C (21.9 F)tie127 years10 of 100 (Routine)
30 September 2025La Harpe, USdaily high max (Tie)32.8 C (91.0 F)tie92 years9 of 100 (Routine)
16 September 2025La Harpe, USdaily high max (Tie)35.6 C (96.1 F)tie119 years10 of 100 (Routine)
26 July 2025La Harpe, USdaily rain77.0 mm (3.0 in)43.5 mm (1.7 in)40 years48 of 100 (Notable)

Climate Trend

121 complete years, 1897 to 2025
Annual mean temperature at La Harpe as warming stripes, 1897 to 2025 One stripe for each of 121 complete years at La Harpe, 1897 to 2025. Blue stripes are years cooler than the station's own mean of 10.8 C (51.4 F); red stripes are warmer. The coolest year was 2014, at 8.9 C (48.0 F), and the warmest was 1931, at 13.1 C (55.6 F). The strongest colour marks a difference of 2.4 C (4.3 F). 1897: 11.2 C, +0.4 C from the station mean1898: 11.1 C, +0.3 C from the station mean1900: 11.3 C, +0.4 C from the station mean1901: 10.6 C, -0.2 C from the station mean1902: 10.2 C, -0.6 C from the station mean1903: 10.2 C, -0.6 C from the station mean1904: 9.4 C, -1.4 C from the station mean1905: 10.0 C, -0.8 C from the station mean1906: 10.8 C, -0.1 C from the station mean1907: 10.4 C, -0.4 C from the station mean1908: 11.3 C, +0.5 C from the station mean1909: 10.5 C, -0.3 C from the station mean1910: 10.3 C, -0.5 C from the station mean1911: 11.7 C, +0.9 C from the station mean1912: 9.7 C, -1.2 C from the station mean1913: 11.6 C, +0.8 C from the station mean1914: 11.3 C, +0.5 C from the station mean1915: 10.4 C, -0.4 C from the station mean1916: 10.5 C, -0.3 C from the station mean1917: 9.2 C, -1.6 C from the station mean1919: 11.4 C, +0.6 C from the station mean1920: 10.8 C, 0.0 C from the station mean1922: 11.7 C, +0.9 C from the station mean1924: 9.4 C, -1.4 C from the station mean1925: 11.0 C, +0.2 C from the station mean1926: 10.4 C, -0.4 C from the station mean1927: 11.2 C, +0.4 C from the station mean1928: 11.1 C, +0.3 C from the station mean1929: 10.0 C, -0.8 C from the station mean1930: 12.0 C, +1.1 C from the station mean1931: 13.1 C, +2.3 C from the station mean1932: 11.2 C, +0.4 C from the station mean1933: 12.3 C, +1.5 C from the station mean1934: 12.6 C, +1.8 C from the station mean1935: 10.5 C, -0.3 C from the station mean1936: 11.0 C, +0.2 C from the station mean1937: 10.1 C, -0.7 C from the station mean1938: 12.3 C, +1.5 C from the station mean1939: 11.9 C, +1.1 C from the station mean1940: 10.2 C, -0.6 C from the station mean1941: 12.3 C, +1.5 C from the station mean1942: 11.2 C, +0.4 C from the station mean1943: 10.8 C, -0.1 C from the station mean1944: 11.4 C, +0.6 C from the station mean1945: 10.5 C, -0.3 C from the station mean1946: 12.5 C, +1.7 C from the station mean1947: 11.1 C, +0.3 C from the station mean1948: 11.3 C, +0.5 C from the station mean1949: 11.7 C, +0.9 C from the station mean1950: 10.2 C, -0.6 C from the station mean1951: 10.3 C, -0.5 C from the station mean1952: 11.5 C, +0.7 C from the station mean1953: 11.9 C, +1.1 C from the station mean1954: 12.0 C, +1.2 C from the station mean1955: 11.1 C, +0.3 C from the station mean1956: 11.5 C, +0.7 C from the station mean1957: 11.0 C, +0.2 C from the station mean1958: 10.0 C, -0.8 C from the station mean1959: 10.7 C, -0.1 C from the station mean1960: 9.9 C, -0.9 C from the station mean1961: 10.5 C, -0.3 C from the station mean1962: 10.7 C, -0.1 C from the station mean1963: 10.8 C, -0.1 C from the station mean1964: 11.7 C, +0.9 C from the station mean1965: 11.3 C, +0.5 C from the station mean1966: 10.8 C, 0.0 C from the station mean1968: 10.3 C, -0.6 C from the station mean1969: 10.4 C, -0.4 C from the station mean1970: 10.8 C, 0.0 C from the station mean1971: 10.9 C, +0.1 C from the station mean1972: 10.0 C, -0.8 C from the station mean1973: 11.6 C, +0.8 C from the station mean1974: 10.5 C, -0.3 C from the station mean1975: 10.3 C, -0.5 C from the station mean1976: 10.0 C, -0.8 C from the station mean1977: 10.7 C, -0.1 C from the station mean1978: 9.2 C, -1.6 C from the station mean1979: 9.9 C, -0.9 C from the station mean1980: 11.0 C, +0.2 C from the station mean1981: 11.3 C, +0.5 C from the station mean1982: 10.2 C, -0.6 C from the station mean1983: 11.0 C, +0.2 C from the station mean1984: 10.4 C, -0.4 C from the station mean1985: 9.4 C, -1.4 C from the station mean1987: 12.0 C, +1.2 C from the station mean1988: 10.1 C, -0.8 C from the station mean1989: 9.0 C, -1.8 C from the station mean1990: 10.1 C, -0.7 C from the station mean1991: 11.0 C, +0.2 C from the station mean1992: 10.7 C, -0.1 C from the station mean1993: 9.6 C, -1.2 C from the station mean1994: 10.4 C, -0.5 C from the station mean1995: 9.8 C, -1.0 C from the station mean1996: 9.0 C, -1.8 C from the station mean1997: 9.8 C, -1.0 C from the station mean1998: 12.0 C, +1.2 C from the station mean1999: 10.8 C, 0.0 C from the station mean2000: 10.2 C, -0.7 C from the station mean2001: 10.6 C, -0.2 C from the station mean2002: 10.5 C, -0.3 C from the station mean2003: 9.8 C, -1.1 C from the station mean2004: 11.1 C, +0.3 C from the station mean2005: 11.8 C, +1.0 C from the station mean2006: 11.5 C, +0.7 C from the station mean2007: 11.0 C, +0.2 C from the station mean2008: 9.6 C, -1.2 C from the station mean2010: 10.8 C, 0.0 C from the station mean2012: 12.4 C, +1.6 C from the station mean2013: 9.8 C, -1.1 C from the station mean2014: 8.9 C, -1.9 C from the station mean2015: 11.3 C, +0.4 C from the station mean2016: 12.2 C, +1.4 C from the station mean2017: 11.7 C, +0.9 C from the station mean2018: 10.5 C, -0.3 C from the station mean2019: 10.1 C, -0.7 C from the station mean2020: 10.8 C, 0.0 C from the station mean2021: 11.1 C, +0.2 C from the station mean2022: 9.9 C, -0.9 C from the station mean2023: 11.6 C, +0.8 C from the station mean2024: 12.2 C, +1.4 C from the station mean2025: 11.4 C, +0.6 C from the station mean1897191019201930194019501960197019801990200020102020
One stripe for each of 121 complete years at La Harpe, 1897 to 2025. Blue stripes are years cooler than the station's own mean of 10.8 C (51.4 F); red stripes are warmer. The coolest year was 2014, at 8.9 C (48.0 F), and the warmest was 1931, at 13.1 C (55.6 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at La Harpe as warming stripes, 1897 to 2025
YearAnnual mean temperatureDifference from the station mean
189711.2 C+0.39 C
189811.1 C+0.26 C
190011.3 C+0.45 C
190110.6 C-0.18 C
190210.2 C-0.61 C
190310.2 C-0.60 C
19049.4 C-1.38 C
190510.0 C-0.81 C
190610.8 C-0.05 C
190710.4 C-0.41 C
190811.3 C+0.50 C
190910.5 C-0.26 C
191010.3 C-0.46 C
191111.7 C+0.92 C
19129.7 C-1.15 C
191311.6 C+0.83 C
191411.3 C+0.51 C
191510.4 C-0.39 C
191610.5 C-0.30 C
19179.2 C-1.59 C
191911.4 C+0.59 C
192010.8 C0.00 C
192211.7 C+0.91 C
19249.4 C-1.38 C
192511.0 C+0.19 C
192610.4 C-0.41 C
192711.2 C+0.40 C
192811.1 C+0.31 C
192910.0 C-0.78 C
193012.0 C+1.15 C
193113.1 C+2.31 C
193211.2 C+0.44 C
193312.3 C+1.47 C
193412.6 C+1.83 C
193510.5 C-0.28 C
193611.0 C+0.23 C
193710.1 C-0.71 C
193812.3 C+1.49 C
193911.9 C+1.10 C
194010.2 C-0.59 C
194112.3 C+1.46 C
194211.2 C+0.37 C
194310.8 C-0.05 C
194411.4 C+0.60 C
194510.5 C-0.34 C
194612.5 C+1.68 C
194711.1 C+0.31 C
194811.3 C+0.52 C
194911.7 C+0.93 C
195010.2 C-0.60 C
195110.3 C-0.52 C
195211.5 C+0.74 C
195311.9 C+1.13 C
195412.0 C+1.18 C
195511.1 C+0.29 C
195611.5 C+0.72 C
195711.0 C+0.23 C
195810.0 C-0.79 C
195910.7 C-0.10 C
19609.9 C-0.91 C
196110.5 C-0.27 C
196210.7 C-0.10 C
196310.8 C-0.05 C
196411.7 C+0.87 C
196511.3 C+0.51 C
196610.8 C+0.04 C
196810.3 C-0.55 C
196910.4 C-0.44 C
197010.8 C0.00 C
197110.9 C+0.14 C
197210.0 C-0.80 C
197311.6 C+0.76 C
197410.5 C-0.26 C
197510.3 C-0.47 C
197610.0 C-0.78 C
197710.7 C-0.10 C
19789.2 C-1.58 C
19799.9 C-0.94 C
198011.0 C+0.20 C
198111.3 C+0.48 C
198210.2 C-0.64 C
198311.0 C+0.22 C
198410.4 C-0.37 C
19859.4 C-1.41 C
198712.0 C+1.16 C
198810.1 C-0.75 C
19899.0 C-1.79 C
199010.1 C-0.69 C
199111.0 C+0.23 C
199210.7 C-0.14 C
19939.6 C-1.16 C
199410.4 C-0.45 C
19959.8 C-1.00 C
19969.0 C-1.82 C
19979.8 C-1.02 C
199812.0 C+1.18 C
199910.8 C+0.03 C
200010.2 C-0.65 C
200110.6 C-0.23 C
200210.5 C-0.34 C
20039.8 C-1.05 C
200411.1 C+0.26 C
200511.8 C+1.04 C
200611.5 C+0.69 C
200711.0 C+0.24 C
20089.6 C-1.23 C
201010.8 C0.00 C
201212.4 C+1.64 C
20139.8 C-1.05 C
20148.9 C-1.93 C
201511.3 C+0.45 C
201612.2 C+1.41 C
201711.7 C+0.93 C
201810.5 C-0.30 C
201910.1 C-0.73 C
202010.8 C-0.03 C
202111.1 C+0.25 C
20229.9 C-0.94 C
202311.6 C+0.83 C
202412.2 C+1.38 C
202511.4 C+0.60 C

The fitted trend in annual mean temperature here over 1897 to 2025 is -0.02 C (-0.06 to 0.02) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.04 F (-0.11 to 0.04) per decade. The slope is a straight line fitted to 121 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at La Harpe
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.02 C (-0.06 to 0.02) per decade-0.04 F (-0.11 to 0.04) per decade1897 to 2025121Not clearly different from zero
Mean daily maximum-0.03 C (-0.07 to 0.02) per decade-0.05 F (-0.13 to 0.04) per decade1897 to 2025121Not clearly different from zero
Mean daily minimum-0.01 C (-0.06 to 0.04) per decade-0.02 F (-0.11 to 0.06) per decade1897 to 2025121Not 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

1895 to 2026
Yearly extremes at La Harpe: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)45.0 C (113.0 F)193436.7 C (98.1 F)132
Coldest night (TNn)-34.4 C (-29.9 F)1905-24.4 C (-11.9 F)132
Wettest day (Rx1day)260.4 mm (10.3 in)190566.9 mm (2.6 in)132
Wettest five days (Rx5day)260.4 mm (10.3 in)1905103.1 mm (4.1 in)132
Longest dry spell (CDD)45 days196422 days132

Hottest day (TXx)

Hottest day (TXx) at La Harpe by year The hottest day of the year at La Harpe, 1895 to 2026. The record is 45.0 C (113.0 F) in 1934, marked on the chart; the median year is 36.7 C (98.1 F). 303540451900192019401960198020002020Record: 45.0 C (113.0 F) in 1934
The hottest day of the year at La Harpe, 1895 to 2026. The record is 45.0 C (113.0 F) in 1934, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at La Harpe by year
YearHottest day (TXx)
189537.8 C (100.0 F)
189637.8 C (100.0 F)
189737.8 C (100.0 F)
189835.6 C (96.1 F)
189938.3 C (100.9 F)
190037.8 C (100.0 F)
190142.2 C (108.0 F)
190235.0 C (95.0 F)
190336.7 C (98.1 F)
190435.0 C (95.0 F)
190535.6 C (96.1 F)
190636.7 C (98.1 F)
190734.4 C (93.9 F)
190836.1 C (97.0 F)
190936.1 C (97.0 F)
191036.1 C (97.0 F)
191141.1 C (106.0 F)
191237.2 C (99.0 F)
191341.7 C (107.1 F)
191440.0 C (104.0 F)
191533.9 C (93.0 F)
191640.0 C (104.0 F)
191736.7 C (98.1 F)
191841.7 C (107.1 F)
191940.6 C (105.1 F)
192036.1 C (97.0 F)
192135.0 C (95.0 F)
192237.8 C (100.0 F)
192337.8 C (100.0 F)
192434.4 C (93.9 F)
192538.9 C (102.0 F)
192635.6 C (96.1 F)
192736.1 C (97.0 F)
192835.0 C (95.0 F)
192937.8 C (100.0 F)
193042.2 C (108.0 F)
193138.9 C (102.0 F)
193236.1 C (97.0 F)
193337.8 C (100.0 F)
193445.0 C (113.0 F)
193537.2 C (99.0 F)
193643.3 C (109.9 F)
193737.2 C (99.0 F)
193836.1 C (97.0 F)
193938.3 C (100.9 F)
194040.0 C (104.0 F)
194138.9 C (102.0 F)
194236.1 C (97.0 F)
194335.6 C (96.1 F)
194437.2 C (99.0 F)
194537.8 C (100.0 F)
194635.6 C (96.1 F)
194738.3 C (100.9 F)
194835.6 C (96.1 F)
194936.1 C (97.0 F)
195033.9 C (93.0 F)
195135.6 C (96.1 F)
195237.2 C (99.0 F)
195338.3 C (100.9 F)
195438.3 C (100.9 F)
195537.8 C (100.0 F)
195638.9 C (102.0 F)
195736.1 C (97.0 F)
195835.0 C (95.0 F)
195934.4 C (93.9 F)
196035.0 C (95.0 F)
196134.4 C (93.9 F)
196236.1 C (97.0 F)
196338.3 C (100.9 F)
196437.8 C (100.0 F)
196536.7 C (98.1 F)
196640.0 C (104.0 F)
196735.0 C (95.0 F)
196835.6 C (96.1 F)
196936.7 C (98.1 F)
197039.4 C (102.9 F)
197136.1 C (97.0 F)
197235.0 C (95.0 F)
197335.0 C (95.0 F)
197437.2 C (99.0 F)
197537.2 C (99.0 F)
197637.8 C (100.0 F)
197738.9 C (102.0 F)
197835.0 C (95.0 F)
197935.0 C (95.0 F)
198037.8 C (100.0 F)
198136.1 C (97.0 F)
198235.0 C (95.0 F)
198340.6 C (105.1 F)
198436.7 C (98.1 F)
198535.0 C (95.0 F)
198634.4 C (93.9 F)
198740.0 C (104.0 F)
198840.6 C (105.1 F)
198937.8 C (100.0 F)
199037.8 C (100.0 F)
199137.2 C (99.0 F)
199233.9 C (93.0 F)
199334.4 C (93.9 F)
199435.0 C (95.0 F)
199537.8 C (100.0 F)
199634.4 C (93.9 F)
199736.1 C (97.0 F)
199836.1 C (97.0 F)
199936.7 C (98.1 F)
200037.2 C (99.0 F)
200136.7 C (98.1 F)
200235.0 C (95.0 F)
200336.7 C (98.1 F)
200433.3 C (91.9 F)
200538.9 C (102.0 F)
200637.8 C (100.0 F)
200737.2 C (99.0 F)
200834.4 C (93.9 F)
200935.0 C (95.0 F)
201035.0 C (95.0 F)
201137.2 C (99.0 F)
201239.4 C (102.9 F)
201337.8 C (100.0 F)
201434.4 C (93.9 F)
201534.4 C (93.9 F)
201635.6 C (96.1 F)
201735.0 C (95.0 F)
201835.0 C (95.0 F)
201934.4 C (93.9 F)
202033.3 C (91.9 F)
202133.3 C (91.9 F)
202235.0 C (95.0 F)
202336.7 C (98.1 F)
202436.1 C (97.0 F)
202536.1 C (97.0 F)
202636.1 C (97.0 F)

Coldest night (TNn)

Coldest night (TNn) at La Harpe by year The coldest night of the year at La Harpe, 1895 to 2026. The record is -34.4 C (-29.9 F) in 1905, marked on the chart; the median year is -24.4 C (-11.9 F). -35-30-25-20-151900192019401960198020002020Record: -34.4 C (-29.9 F) in 1905
The coldest night of the year at La Harpe, 1895 to 2026. The record is -34.4 C (-29.9 F) in 1905, marked on the chart; the median year is -24.4 C (-11.9 F).
Coldest night (TNn) at La Harpe by year
YearColdest night (TNn)
1895-17.8 C (0.0 F)
1896-18.9 C (-2.0 F)
1897-27.8 C (-18.0 F)
1898-23.3 C (-9.9 F)
1899-31.1 C (-24.0 F)
1900-20.6 C (-5.1 F)
1901-27.2 C (-17.0 F)
1902-26.7 C (-16.1 F)
1903-27.8 C (-18.0 F)
1904-28.9 C (-20.0 F)
1905-34.4 C (-29.9 F)
1906-19.4 C (-2.9 F)
1907-25.0 C (-13.0 F)
1908-21.7 C (-7.1 F)
1909-25.6 C (-14.1 F)
1910-22.8 C (-9.0 F)
1911-23.3 C (-9.9 F)
1912-29.4 C (-20.9 F)
1913-23.3 C (-9.9 F)
1914-31.7 C (-25.1 F)
1915-30.0 C (-22.0 F)
1916-27.8 C (-18.0 F)
1917-27.8 C (-18.0 F)
1918-26.7 C (-16.1 F)
1919-28.9 C (-20.0 F)
1920-22.2 C (-8.0 F)
1921-17.2 C (1.0 F)
1922-22.8 C (-9.0 F)
1923-21.7 C (-7.1 F)
1924-32.2 C (-26.0 F)
1925-22.2 C (-8.0 F)
1926-22.2 C (-8.0 F)
1927-30.0 C (-22.0 F)
1928-25.6 C (-14.1 F)
1929-23.9 C (-11.0 F)
1930-30.6 C (-23.1 F)
1931-16.1 C (3.0 F)
1932-27.8 C (-18.0 F)
1933-28.9 C (-20.0 F)
1934-26.1 C (-15.0 F)
1935-24.4 C (-11.9 F)
1936-30.0 C (-22.0 F)
1937-23.3 C (-9.9 F)
1938-19.4 C (-2.9 F)
1939-20.6 C (-5.1 F)
1940-27.8 C (-18.0 F)
1941-19.4 C (-2.9 F)
1942-25.0 C (-13.0 F)
1943-26.1 C (-15.0 F)
1944-25.6 C (-14.1 F)
1945-23.9 C (-11.0 F)
1946-18.9 C (-2.0 F)
1947-25.6 C (-14.1 F)
1948-22.2 C (-8.0 F)
1949-23.3 C (-9.9 F)
1950-23.3 C (-9.9 F)
1951-27.2 C (-17.0 F)
1952-19.4 C (-2.9 F)
1953-20.6 C (-5.1 F)
1954-20.6 C (-5.1 F)
1955-25.6 C (-14.1 F)
1956-24.4 C (-11.9 F)
1957-29.4 C (-20.9 F)
1958-25.6 C (-14.1 F)
1959-25.6 C (-14.1 F)
1960-25.0 C (-13.0 F)
1961-23.9 C (-11.0 F)
1962-25.0 C (-13.0 F)
1963-27.8 C (-18.0 F)
1964-20.0 C (-4.0 F)
1965-24.4 C (-11.9 F)
1966-27.2 C (-17.0 F)
1967-23.3 C (-9.9 F)
1968-26.1 C (-15.0 F)
1969-22.2 C (-8.0 F)
1970-28.9 C (-20.0 F)
1971-22.2 C (-8.0 F)
1972-27.2 C (-17.0 F)
1973-23.3 C (-9.9 F)
1974-28.9 C (-20.0 F)
1975-27.8 C (-18.0 F)
1976-23.9 C (-11.0 F)
1977-30.0 C (-22.0 F)
1978-24.4 C (-11.9 F)
1979-28.9 C (-20.0 F)
1980-21.7 C (-7.1 F)
1981-24.4 C (-11.9 F)
1982-30.6 C (-23.1 F)
1983-28.9 C (-20.0 F)
1984-26.7 C (-16.1 F)
1985-29.4 C (-20.9 F)
1986-22.2 C (-8.0 F)
1987-19.4 C (-2.9 F)
1988-23.3 C (-9.9 F)
1989-30.6 C (-23.1 F)
1990-21.7 C (-7.1 F)
1991-21.1 C (-6.0 F)
1992-21.1 C (-6.0 F)
1993-21.1 C (-6.0 F)
1994-27.2 C (-17.0 F)
1995-21.1 C (-6.0 F)
1996-30.0 C (-22.0 F)
1997-25.6 C (-14.1 F)
1998-21.1 C (-6.0 F)
1999-30.0 C (-22.0 F)
2000-24.4 C (-11.9 F)
2001-21.7 C (-7.1 F)
2002-22.2 C (-8.0 F)
2003-22.2 C (-8.0 F)
2004-22.2 C (-8.0 F)
2005-21.7 C (-7.1 F)
2006-20.6 C (-5.1 F)
2007-23.3 C (-9.9 F)
2008-22.2 C (-8.0 F)
2009-28.9 C (-20.0 F)
2010-23.3 C (-9.9 F)
2011-22.8 C (-9.0 F)
2012-15.6 C (3.9 F)
2013-22.2 C (-8.0 F)
2014-27.2 C (-17.0 F)
2015-25.0 C (-13.0 F)
2016-22.8 C (-9.0 F)
2017-23.3 C (-9.9 F)
2018-27.8 C (-18.0 F)
2019-28.3 C (-18.9 F)
2020-23.3 C (-9.9 F)
2021-22.8 C (-9.0 F)
2022-23.9 C (-11.0 F)
2023-18.3 C (-0.9 F)
2024-27.8 C (-18.0 F)
2025-24.4 C (-11.9 F)
2026-22.8 C (-9.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at La Harpe by year The wettest day of the year at La Harpe, 1895 to 2026. The record is 260.4 mm (10.3 in) in 1905, marked on the chart; the median year is 66.9 mm (2.6 in). 01002003001900192019401960198020002020Record: 260.4 mm (10.3 in) in 1905
The wettest day of the year at La Harpe, 1895 to 2026. The record is 260.4 mm (10.3 in) in 1905, marked on the chart; the median year is 66.9 mm (2.6 in).
Wettest day (Rx1day) at La Harpe by year
YearWettest day (Rx1day)
189538.1 mm (1.5 in)
1896133.4 mm (5.3 in)
189782.6 mm (3.3 in)
1898138.4 mm (5.4 in)
1899111.8 mm (4.4 in)
190069.9 mm (2.8 in)
190182.6 mm (3.3 in)
190276.2 mm (3.0 in)
190350.8 mm (2.0 in)
190476.2 mm (3.0 in)
1905260.4 mm (10.3 in)
190663.5 mm (2.5 in)
1907101.6 mm (4.0 in)
190888.9 mm (3.5 in)
190973.7 mm (2.9 in)
191081.3 mm (3.2 in)
191164.5 mm (2.5 in)
191249.8 mm (2.0 in)
191336.3 mm (1.4 in)
191456.9 mm (2.2 in)
191596.0 mm (3.8 in)
191651.1 mm (2.0 in)
191799.1 mm (3.9 in)
191864.8 mm (2.6 in)
191947.0 mm (1.9 in)
1920139.7 mm (5.5 in)
192183.8 mm (3.3 in)
192277.5 mm (3.1 in)
192362.2 mm (2.4 in)
192482.6 mm (3.3 in)
192556.4 mm (2.2 in)
192666.0 mm (2.6 in)
192798.0 mm (3.9 in)
1928114.3 mm (4.5 in)
192970.6 mm (2.8 in)
193063.5 mm (2.5 in)
193162.5 mm (2.5 in)
193245.5 mm (1.8 in)
193381.3 mm (3.2 in)
193436.6 mm (1.4 in)
1935115.1 mm (4.5 in)
193667.3 mm (2.6 in)
193755.4 mm (2.2 in)
193852.3 mm (2.1 in)
193959.7 mm (2.4 in)
194034.3 mm (1.4 in)
194188.9 mm (3.5 in)
194261.5 mm (2.4 in)
194375.7 mm (3.0 in)
194497.0 mm (3.8 in)
194553.6 mm (2.1 in)
1946143.3 mm (5.6 in)
1947110.2 mm (4.3 in)
1948127.5 mm (5.0 in)
194951.1 mm (2.0 in)
195064.5 mm (2.5 in)
195158.7 mm (2.3 in)
195266.3 mm (2.6 in)
195354.4 mm (2.1 in)
195478.2 mm (3.1 in)
195555.9 mm (2.2 in)
195672.4 mm (2.9 in)
195747.0 mm (1.9 in)
195855.6 mm (2.2 in)
1959112.0 mm (4.4 in)
196051.3 mm (2.0 in)
1961105.4 mm (4.1 in)
196299.1 mm (3.9 in)
196337.6 mm (1.5 in)
196461.0 mm (2.4 in)
196575.4 mm (3.0 in)
196644.7 mm (1.8 in)
196764.5 mm (2.5 in)
196890.2 mm (3.6 in)
196971.6 mm (2.8 in)
197086.9 mm (3.4 in)
1971107.7 mm (4.2 in)
197286.9 mm (3.4 in)
197366.0 mm (2.6 in)
197443.2 mm (1.7 in)
197552.8 mm (2.1 in)
1976114.8 mm (4.5 in)
197779.5 mm (3.1 in)
197846.2 mm (1.8 in)
197952.8 mm (2.1 in)
198072.4 mm (2.9 in)
198156.9 mm (2.2 in)
198252.6 mm (2.1 in)
198366.5 mm (2.6 in)
198454.1 mm (2.1 in)
1985129.0 mm (5.1 in)
1986120.4 mm (4.7 in)
198749.5 mm (1.9 in)
198836.1 mm (1.4 in)
198939.6 mm (1.6 in)
1990104.1 mm (4.1 in)
199177.5 mm (3.1 in)
199253.6 mm (2.1 in)
199356.4 mm (2.2 in)
199488.9 mm (3.5 in)
199552.3 mm (2.1 in)
1996109.7 mm (4.3 in)
199786.6 mm (3.4 in)
199855.9 mm (2.2 in)
199988.4 mm (3.5 in)
200064.0 mm (2.5 in)
200148.3 mm (1.9 in)
2002104.4 mm (4.1 in)
200385.6 mm (3.4 in)
2004110.2 mm (4.3 in)
200549.5 mm (1.9 in)
200681.3 mm (3.2 in)
200782.6 mm (3.3 in)
200857.4 mm (2.3 in)
200966.5 mm (2.6 in)
201086.6 mm (3.4 in)
201154.9 mm (2.2 in)
201241.9 mm (1.6 in)
2013132.3 mm (5.2 in)
2014139.2 mm (5.5 in)
201561.0 mm (2.4 in)
201650.8 mm (2.0 in)
201742.4 mm (1.7 in)
201868.6 mm (2.7 in)
201972.1 mm (2.8 in)
202045.7 mm (1.8 in)
202155.1 mm (2.2 in)
202241.4 mm (1.6 in)
202387.6 mm (3.4 in)
202466.0 mm (2.6 in)
202577.0 mm (3.0 in)
2026129.5 mm (5.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at La Harpe by year The wettest five days of the year at La Harpe, 1895 to 2026. The record is 260.4 mm (10.3 in) in 1905, marked on the chart; the median year is 103.1 mm (4.1 in). 01002003001900192019401960198020002020Record: 260.4 mm (10.3 in) in 1905
The wettest five days of the year at La Harpe, 1895 to 2026. The record is 260.4 mm (10.3 in) in 1905, marked on the chart; the median year is 103.1 mm (4.1 in).
Wettest five days (Rx5day) at La Harpe by year
YearWettest five days (Rx5day)
1895124.5 mm (4.9 in)
1896162.8 mm (6.4 in)
1897164.4 mm (6.5 in)
1898148.6 mm (5.9 in)
1899152.4 mm (6.0 in)
190069.9 mm (2.8 in)
190183.9 mm (3.3 in)
1902111.8 mm (4.4 in)
1903101.6 mm (4.0 in)
190495.3 mm (3.8 in)
1905260.4 mm (10.3 in)
190673.7 mm (2.9 in)
1907148.6 mm (5.9 in)
1908127.0 mm (5.0 in)
1909140.0 mm (5.5 in)
191081.3 mm (3.2 in)
1911136.9 mm (5.4 in)
191249.8 mm (2.0 in)
191357.9 mm (2.3 in)
191467.6 mm (2.7 in)
1915138.9 mm (5.5 in)
191688.9 mm (3.5 in)
1917184.7 mm (7.3 in)
191894.7 mm (3.7 in)
1919114.8 mm (4.5 in)
1920157.5 mm (6.2 in)
1921103.6 mm (4.1 in)
1922151.2 mm (6.0 in)
192373.2 mm (2.9 in)
1924132.1 mm (5.2 in)
192592.4 mm (3.6 in)
1926119.7 mm (4.7 in)
1927150.0 mm (5.9 in)
1928131.6 mm (5.2 in)
192978.4 mm (3.1 in)
193063.5 mm (2.5 in)
1931110.5 mm (4.4 in)
193277.8 mm (3.1 in)
193397.6 mm (3.8 in)
193477.0 mm (3.0 in)
1935176.3 mm (6.9 in)
193694.2 mm (3.7 in)
193765.4 mm (2.6 in)
193894.4 mm (3.7 in)
1939102.9 mm (4.1 in)
194045.7 mm (1.8 in)
1941228.9 mm (9.0 in)
194283.6 mm (3.3 in)
194383.8 mm (3.3 in)
1944139.7 mm (5.5 in)
194588.4 mm (3.5 in)
1946174.0 mm (6.9 in)
1947110.2 mm (4.3 in)
1948182.9 mm (7.2 in)
194965.6 mm (2.6 in)
195075.7 mm (3.0 in)
1951114.8 mm (4.5 in)
1952109.5 mm (4.3 in)
195370.9 mm (2.8 in)
1954101.8 mm (4.0 in)
195565.0 mm (2.6 in)
195689.5 mm (3.5 in)
195776.7 mm (3.0 in)
195886.1 mm (3.4 in)
1959168.5 mm (6.6 in)
196094.0 mm (3.7 in)
1961199.1 mm (7.8 in)
1962132.9 mm (5.2 in)
196376.9 mm (3.0 in)
196498.1 mm (3.9 in)
1965103.3 mm (4.1 in)
196673.0 mm (2.9 in)
196771.6 mm (2.8 in)
1968129.6 mm (5.1 in)
1969204.2 mm (8.0 in)
1970165.6 mm (6.5 in)
1971131.1 mm (5.2 in)
197290.2 mm (3.6 in)
1973112.0 mm (4.4 in)
197491.0 mm (3.6 in)
1975100.8 mm (4.0 in)
1976142.7 mm (5.6 in)
1977151.9 mm (6.0 in)
197890.5 mm (3.6 in)
197975.9 mm (3.0 in)
1980186.7 mm (7.4 in)
1981129.0 mm (5.1 in)
1982103.2 mm (4.1 in)
198394.7 mm (3.7 in)
198488.1 mm (3.5 in)
1985135.9 mm (5.4 in)
1986203.5 mm (8.0 in)
198779.5 mm (3.1 in)
198866.0 mm (2.6 in)
198956.1 mm (2.2 in)
1990141.9 mm (5.6 in)
199195.5 mm (3.8 in)
199287.4 mm (3.4 in)
1993125.7 mm (4.9 in)
199491.7 mm (3.6 in)
1995121.7 mm (4.8 in)
1996161.3 mm (6.4 in)
199798.3 mm (3.9 in)
199887.4 mm (3.4 in)
1999114.5 mm (4.5 in)
2000109.8 mm (4.3 in)
200173.2 mm (2.9 in)
2002141.8 mm (5.6 in)
2003102.3 mm (4.0 in)
2004112.2 mm (4.4 in)
200562.1 mm (2.4 in)
2006105.6 mm (4.2 in)
2007152.4 mm (6.0 in)
2008115.1 mm (4.5 in)
2009140.7 mm (5.5 in)
2010108.1 mm (4.3 in)
201182.0 mm (3.2 in)
201288.9 mm (3.5 in)
2013156.2 mm (6.1 in)
2014153.7 mm (6.1 in)
201585.3 mm (3.4 in)
201655.1 mm (2.2 in)
201784.3 mm (3.3 in)
2018136.7 mm (5.4 in)
2019116.9 mm (4.6 in)
202085.8 mm (3.4 in)
202192.7 mm (3.6 in)
202250.1 mm (2.0 in)
2023134.6 mm (5.3 in)
2024122.9 mm (4.8 in)
202598.9 mm (3.9 in)
2026169.8 mm (6.7 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at La Harpe by year The longest dry spell of the year at La Harpe, 1895 to 2026. The record is 45 days in 1964, marked on the chart; the median year is 22 days. 10203040501900192019401960198020002020Record: 45 days in 1964
The longest dry spell of the year at La Harpe, 1895 to 2026. The record is 45 days in 1964, marked on the chart; the median year is 22 days.
Longest dry spell (CDD) at La Harpe by year
YearLongest dry spell (CDD)
189525 days
189620 days
189741 days
189823 days
189917 days
190019 days
190124 days
190225 days
190325 days
190431 days
190530 days
190625 days
190724 days
190826 days
190920 days
191034 days
191121 days
191230 days
191329 days
191430 days
191530 days
191623 days
191728 days
191814 days
191931 days
192022 days
192114 days
192216 days
192317 days
192422 days
192522 days
192615 days
192720 days
192818 days
192913 days
193035 days
193119 days
193217 days
193326 days
193423 days
193516 days
193632 days
193715 days
193824 days
193937 days
194025 days
194118 days
194227 days
194320 days
194423 days
194523 days
194632 days
194728 days
194832 days
194915 days
195029 days
195111 days
195232 days
195322 days
195422 days
195529 days
195636 days
195724 days
195823 days
195920 days
196019 days
196116 days
196217 days
196317 days
196445 days
196520 days
196620 days
196718 days
196816 days
196921 days
197019 days
197138 days
197218 days
197314 days
197422 days
197515 days
197626 days
197717 days
197821 days
197929 days
198028 days
198123 days
198218 days
198326 days
198416 days
198521 days
198626 days
198721 days
198835 days
198925 days
199016 days
199118 days
199220 days
199321 days
199420 days
199525 days
199620 days
199721 days
199823 days
199937 days
200018 days
200124 days
200226 days
200315 days
200426 days
200522 days
200634 days
200716 days
200822 days
200923 days
201020 days
201121 days
201224 days
201342 days
201419 days
201523 days
201622 days
201722 days
201816 days
201917 days
202020 days
202117 days
202218 days
202322 days
202420 days
202530 days
202637 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

121 years with a frost

Across 121 years with a frost, the median last spring frost at La Harpe falls on 23 April and the median first autumn frost on 12 October, which leaves a median of 173 days between them.

In 1994 to 2025 the median growing season was 177 days. That is 10 days more than in 1897 to 1930.

Fitted over all years, the growing season changes by +1.2 days per decade at this station.

Frost dates and growing season at La Harpe
MeasureMedian, all yearsEarliest period (1897 to 1930)Recent period (1994 to 2025)Recent against earliestFitted trend
Last spring frost23 April25 April21 April4 days earlier-0.5 days per decade
First autumn frost12 October11 October17 October6 days later+0.7 days per decade
Growing days173 days167 days177 days10 days more+1.2 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

129 years, 1896 to 2025

A day with at least 68.6 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 182.1 mm (7.2 in) of rain is expected about once in 100 years.

Rainfall return levels at La Harpe: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years68.6 mm (2.7 in)
5 years93.9 mm (3.7 in)
10 years112.5 mm (4.4 in)
25 years138.4 mm (5.4 in)
50 years159.5 mm (6.3 in)
100 years182.1 mm (7.2 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 129 years of values from 1896 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: 260.4 mm (10.3 in) in 1905; 143.3 mm (5.6 in) in 1946; 139.7 mm (5.5 in) in 1920.

Station Changes

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

Climate Twins

2010 to 2025 against 1961 to 1990

Over 2010 to 2025, La Harpe had a mean temperature of 11.0 C (51.7 F) and 921.6 mm (36.3 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Farmer City 3W (United States, 196 km away), Rantoul (United States, 241 km away) and Lincoln (United States, 147 km away).

Climate twins of La Harpe: stations whose 1961 to 1990 climate is closest to its 2010 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
Farmer City 3WUnited States196 km (122 mi)10.8 C (51.5 F)943.8 mm (37.2 in)0.59
RantoulUnited States241 km (150 mi)10.7 C (51.2 F)920.8 mm (36.3 in)0.60
LincolnUnited States147 km (91 mi)11.1 C (52.0 F)951.0 mm (37.4 in)0.62

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 La Harpe standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for La Harpe 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-16).