Built 2026-10-15 (15 October 2026)

University Exp STN Weather Records (USC00509641)

Record envelope, standing records and threshold days for University Exp STN (USC00509641), Alaska, United States, with 123 years of record.

Key Facts for University Exp STN

  • University Exp STN (USC00509641) is a weather station in Alaska, United States at 64.86 latitude and -147.86 longitude, 145 m (475 ft) above sea level.
  • The station reports from 1904 to 2026, 123 years of record.
  • 1,464 records set at University Exp STN still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • University Exp STN tied a daily record high minimum temperature of 0.0 C (32.0 F) on 11 April 2026.

About the Station

  • Location: Alaska, United States, 64.86 latitude, -147.86 longitude.
  • Elevation: 145 m (475 ft).
  • Period of record: 1904 to 2026, 123 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

1 days at or beyond a record
Daily record high and record low at University Exp STN, with 2026 drawn through them The band shows the record high and record low for each calendar day at University Exp STN. The lines show the 2026 daily maximum and minimum. 1 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -60-40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at University Exp STN. The lines show the 2026 daily maximum and minimum. 1 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at University Exp STN, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan10.6 C (51.1 F)-53.9 C (-65.0 F)0.6 C (33.1 F)-43.3 C (-45.9 F)
Feb9.4 C (48.9 F)-50.6 C (-59.1 F)-7.2 C (19.0 F)-39.4 C (-38.9 F)
Mar14.4 C (57.9 F)-48.9 C (-56.0 F)0.0 C (32.0 F)-39.4 C (-38.9 F)
Apr24.4 C (75.9 F)-35.6 C (-32.1 F)14.4 C (57.9 F)-16.1 C (3.0 F)
May31.1 C (88.0 F)-17.8 C (0.0 F)21.1 C (70.0 F)-2.2 C (28.0 F)
Jun35.0 C (95.0 F)-3.3 C (26.1 F)28.3 C (82.9 F)0.6 C (33.1 F)
Jul33.9 C (93.0 F)-1.7 C (28.9 F)28.9 C (84.0 F)3.9 C (39.0 F)
Aug32.8 C (91.0 F)-6.1 C (21.0 F)27.2 C (81.0 F)1.1 C (34.0 F)
Sep29.4 C (84.9 F)-15.0 C (5.0 F)n/an/a
Oct22.2 C (72.0 F)-36.7 C (-34.1 F)n/an/a
Nov10.0 C (50.0 F)-45.6 C (-50.1 F)n/an/a
Dec14.4 C (57.9 F)-52.2 C (-62.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at University Exp STN by the year they were set 1,464 records at University Exp STN still stand. 1934 holds the most, with 38. 0102030401904: 11905: 131906: 271907: 171908: 81909: 121910: 111911: 331912: 111913: 231914: 141915: 201916: 141917: 151918: 231919: 181920: 171921: 111922: 221923: 131924: 211925: 121926: 131927: 131928: 111929: 141930: 61931: 151932: 91933: 211934: 381935: 301936: 51937: 211938: 141939: 121940: 241941: 121942: 81943: 121944: 81945: 91946: 101947: 241948: 151949: 101950: 131951: 91952: 91953: 111954: 111955: 41956: 231957: 171958: 81959: 71960: 101961: 251962: 61963: 101964: 221965: 221966: 41967: 91968: 31969: 271970: 121971: 51972: 61973: 41974: 111975: 181976: 171977: 121978: 31979: 131980: 141981: 191982: 91983: 111984: 101985: 131986: 71987: 71988: 61989: 141990: 111991: 61992: 371993: 41994: 111995: 131996: 81997: 11998: 11999: 112000: 42001: 72002: 142003: 182004: 42005: 82006: 62007: 62008: 62009: 92010: 52011: 122012: 32013: 202014: 92015: 42016: 12017: 42018: 22019: 112020: 72021: 42022: 12023: 72024: 62025: 82026: 41904191719301943195619691982199520082021
1,464 records at University Exp STN still stand. 1934 holds the most, with 38.
Standing records at University Exp STN by the year they were set
Year setStanding records
19041
190513
190627
190717
19088
190912
191011
191133
191211
191323
191414
191520
191614
191715
191823
191918
192017
192111
192222
192313
192421
192512
192613
192713
192811
192914
19306
193115
19329
193321
193438
193530
19365
193721
193814
193912
194024
194112
19428
194312
19448
19459
194610
194724
194815
194910
195013
19519
19529
195311
195411
19554
195623
195717
19588
19597
196010
196125
19626
196310
196422
196522
19664
19679
19683
196927
197012
19715
19726
19734
197411
197518
197617
197712
19783
197913
198014
198119
19829
198311
198410
198513
19867
19877
19886
198914
199011
19916
199237
19934
199411
199513
19968
19971
19981
199911
20004
20017
200214
200318
20044
20058
20066
20076
20086
20099
20105
201112
20123
201320
20149
20154
20161
20174
20182
201911
20207
20214
20221
20237
20246
20258
20264

All-Time Record Progression

1 new records
When University Exp STN set new all-time records 1 all-time records were set at University Exp STN between 12 August 1967 and 12 August 1967. Each dot is a new record. Record daily precipitation12 August 1967: Record daily precipitation 83.3 mm (3.3 in)
1 all-time records were set at University Exp STN between 12 August 1967 and 12 August 1967. Each dot is a new record.
When University Exp STN set new all-time records
DateKindDetail
1967-08-12Record daily precipitationRecord daily precipitation 83.3 mm (3.3 in)

Wettest Day of Each Month

Aug: 83.3 mm (3.3 in)
Record daily precipitation for each month at University Exp STN The wettest day on record for each calendar month at University Exp STN. The most was 83.3 mm (3.3 in) on 12 August 1967. 0255075100 Jan: 22.4 mm (0.9 in), 11 January 1937 Jan Feb: 19.1 mm (0.8 in), 18 February 1996 Feb Mar: 40.9 mm (1.6 in), 25 March 1963 Mar Apr: 17.8 mm (0.7 in), 26 April 2002 Apr May: 22.9 mm (0.9 in), 27 May 1955 May Jun: 36.8 mm (1.4 in), 10 June 1910 Jun Jul: 75.4 mm (3.0 in), 2 July 2014 Jul Aug: 83.3 mm (3.3 in), 12 August 1967 Aug Sep: 46.2 mm (1.8 in), 2 September 2014 Sep Oct: 36.6 mm (1.4 in), 22 October 2024 Oct Nov: 27.9 mm (1.1 in), 25 November 1915 Nov Dec: 29.7 mm (1.2 in), 26 December 2021 Dec
The wettest day on record for each calendar month at University Exp STN. The most was 83.3 mm (3.3 in) on 12 August 1967.
Record daily precipitation for each month at University Exp STN
MonthRecord daily precipitation (mm)Date
Jan22.4 mm (0.9 in)11 January 1937
Feb19.1 mm (0.8 in)18 February 1996
Mar40.9 mm (1.6 in)25 March 1963
Apr17.8 mm (0.7 in)26 April 2002
May22.9 mm (0.9 in)27 May 1955
Jun36.8 mm (1.4 in)10 June 1910
Jul75.4 mm (3.0 in)2 July 2014
Aug83.3 mm (3.3 in)12 August 1967
Sep46.2 mm (1.8 in)2 September 2014
Oct36.6 mm (1.4 in)22 October 2024
Nov27.9 mm (1.1 in)25 November 1915
Dec29.7 mm (1.2 in)26 December 2021

Period of Record Coverage

1904 to 2026
Days with data per year at University Exp STN 123 years of record at University Exp STN, 1904 to 2026. 10 years have data for under 90 percent of days and are left out of rankings: 1904, 1905, 1907, 1909, 1910, 1969, 1974, 1986 and others. 1904: 108 of 366 days1905: 279 of 365 days1906: 354 of 365 days1907: 323 of 365 days1908: 358 of 366 days1909: 325 of 365 days1910: 297 of 365 days1911: 331 of 365 days1912: 362 of 366 days1913: 363 of 365 days1914: 335 of 365 days1915: 363 of 365 days1916: 364 of 366 days1917: 363 of 365 days1918: 361 of 365 days1919: 359 of 365 days1920: 365 of 366 days1921: 362 of 365 days1922: 363 of 365 days1923: 364 of 365 days1924: 364 of 366 days1925: 358 of 365 days1926: 364 of 365 days1927: 364 of 365 days1928: 362 of 366 days1929: 363 of 365 days1930: 361 of 365 days1931: 365 of 365 days1932: 334 of 366 days1933: 364 of 365 days1934: 361 of 365 days1935: 364 of 365 days1936: 355 of 366 days1937: 365 of 365 days1938: 362 of 365 days1939: 364 of 365 days1940: 362 of 366 days1941: 365 of 365 days1942: 362 of 365 days1943: 365 of 365 days1944: 364 of 366 days1945: 354 of 365 days1946: 355 of 365 days1947: 358 of 365 days1948: 362 of 366 days1949: 359 of 365 days1950: 364 of 365 days1951: 361 of 365 days1952: 366 of 366 days1953: 362 of 365 days1954: 363 of 365 days1955: 364 of 365 days1956: 366 of 366 days1957: 364 of 365 days1958: 360 of 365 days1959: 365 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 365 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 365 of 366 days1969: 328 of 365 days1970: 362 of 365 days1971: 361 of 365 days1972: 359 of 366 days1973: 351 of 365 days1974: 300 of 365 days1975: 360 of 365 days1976: 360 of 366 days1977: 363 of 365 days1978: 362 of 365 days1979: 348 of 365 days1980: 355 of 366 days1981: 364 of 365 days1982: 359 of 365 days1983: 354 of 365 days1984: 343 of 366 days1985: 349 of 365 days1986: 321 of 365 days1987: 343 of 365 days1988: 345 of 366 days1989: 354 of 365 days1990: 349 of 365 days1991: 362 of 365 days1992: 356 of 366 days1993: 361 of 365 days1994: 350 of 365 days1995: 359 of 365 days1996: 362 of 366 days1997: 361 of 365 days1998: 363 of 365 days1999: 362 of 365 days2000: 356 of 366 days2001: 364 of 365 days2002: 365 of 365 days2003: 363 of 365 days2004: 364 of 366 days2005: 361 of 365 days2006: 363 of 365 days2007: 364 of 365 days2008: 363 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 303 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 363 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: 366 of 366 days2025: 365 of 365 days2026: 243 of 365 days192019401960198020002020
123 years of record at University Exp STN, 1904 to 2026. 10 years have data for under 90 percent of days and are left out of rankings: 1904, 1905, 1907, 1909, 1910, 1969, 1974, 1986 and others.
Days with data per year at University Exp STN
YearDays with dataShare of yearComplete
190410830%No
190527976%No
190635497%Yes
190732388%No
190835898%Yes
190932589%No
191029781%No
191133191%Yes
191236299%Yes
191336399%Yes
191433592%Yes
191536399%Yes
191636499%Yes
191736399%Yes
191836199%Yes
191935998%Yes
1920365100%Yes
192136299%Yes
192236399%Yes
1923364100%Yes
192436499%Yes
192535898%Yes
1926364100%Yes
1927364100%Yes
192836299%Yes
192936399%Yes
193036199%Yes
1931365100%Yes
193233491%Yes
1933364100%Yes
193436199%Yes
1935364100%Yes
193635597%Yes
1937365100%Yes
193836299%Yes
1939364100%Yes
194036299%Yes
1941365100%Yes
194236299%Yes
1943365100%Yes
194436499%Yes
194535497%Yes
194635597%Yes
194735898%Yes
194836299%Yes
194935998%Yes
1950364100%Yes
195136199%Yes
1952366100%Yes
195336299%Yes
195436399%Yes
1955364100%Yes
1956366100%Yes
1957364100%Yes
195836099%Yes
1959365100%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964365100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968365100%Yes
196932890%No
197036299%Yes
197136199%Yes
197235998%Yes
197335196%Yes
197430082%No
197536099%Yes
197636098%Yes
197736399%Yes
197836299%Yes
197934895%Yes
198035597%Yes
1981364100%Yes
198235998%Yes
198335497%Yes
198434394%Yes
198534996%Yes
198632188%No
198734394%Yes
198834594%Yes
198935497%Yes
199034996%Yes
199136299%Yes
199235697%Yes
199336199%Yes
199435096%Yes
199535998%Yes
199636299%Yes
199736199%Yes
199836399%Yes
199936299%Yes
200035697%Yes
2001364100%Yes
2002365100%Yes
200336399%Yes
200436499%Yes
200536199%Yes
200636399%Yes
2007364100%Yes
200836399%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
201330383%No
2014365100%Yes
2015365100%Yes
2016366100%Yes
201736399%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202624367%No

Latest Records

20
Latest records at University Exp STN
DateStationRecordValueBeat old record byOld record stoodSignificance
11 April 2026University Exp STN, USdaily high min (Tie)0.0 C (32.0 F)tie111 years10 of 100 (Routine)
19 March 2026University Exp STN, USdaily low max-18.9 C (-2.0 F)1.1 C (2.0 F)60 years29 of 100 (Routine)
28 February 2026University Exp STN, USdaily low min-39.4 C (-38.9 F)1.1 C (2.0 F)116 years41 of 100 (Notable)
28 February 2026University Exp STN, USdaily low max-25.6 C (-14.1 F)1.2 C (2.2 F)70 years32 of 100 (Routine)
27 February 2026University Exp STN, USdaily low max-26.7 C (-16.1 F)0.6 C (1.1 F)92 years37 of 100 (Notable)
24 February 2026University Exp STN, USdaily snowfall13.0 cm (5.1 in)0.8 cm (0.3 in)3 years12 of 100 (Routine)
24 February 2026University Exp STN, USdaily rain (Tie)11.7 mm (0.5 in)tie3 years2 of 100 (Routine)
23 February 2026University Exp STN, USdaily rain11.9 mm (0.5 in)4.0 mm (0.16 in)8 years20 of 100 (Routine)
23 February 2026University Exp STN, USdaily snowfall13.5 cm (5.3 in)2.8 cm (1.1 in)8 years20 of 100 (Routine)
19 February 2026University Exp STN, USdaily rain10.9 mm (0.4 in)6.3 mm (0.25 in)108 years20 of 100 (Routine)
19 February 2026University Exp STN, USdaily snowfall16.0 cm (6.3 in)8.4 cm (3.3 in)120 years64 of 100 (Major)
16 February 2026University Exp STN, USdaily snowfall (Tie)6.6 cm (2.6 in)tie12 years3 of 100 (Routine)
15 February 2026University Exp STN, USdaily snowfall13.2 cm (5.2 in)3.0 cm (1.2 in)8 years20 of 100 (Routine)
15 February 2026University Exp STN, USdaily rain7.4 mm (0.29 in)0.3 mm (0.01 in)8 years13 of 100 (Routine)
24 December 2025University Exp STN, USdaily snowfall16.5 cm (6.5 in)6.1 cm (2.4 in)35 years35 of 100 (Notable)
12 December 2025University Exp STN, USdaily snowfall20.6 cm (8.1 in)13.0 cm (5.1 in)34 years53 of 100 (Notable)
12 December 2025University Exp STN, USdaily rain7.9 mm (0.31 in)3.1 mm (0.12 in)12 years20 of 100 (Routine)
8 October 2025University Exp STN, USdaily high min (Tie)5.6 C (42.1 F)tie56 years6 of 100 (Routine)
7 October 2025University Exp STN, USdaily high min5.0 C (41.0 F)0.6 C (1.1 F)108 years40 of 100 (Notable)
26 August 2025University Exp STN, USdaily high min (Tie)11.7 C (53.1 F)tie104 years10 of 100 (Routine)

Climate Trend

111 complete years, 1906 to 2025
Annual mean temperature at University Exp STN as warming stripes, 1906 to 2025 One stripe for each of 111 complete years at University Exp STN, 1906 to 2025. Blue stripes are years cooler than the station's own mean of -2.3 C (27.8 F); red stripes are warmer. The coolest year was 1956, at -5.3 C (22.5 F), and the warmest was 2019, at 0.7 C (33.2 F). The strongest colour marks a difference of 3.1 C (5.6 F). 1906: -4.2 C, -1.8 C from the station mean1908: -3.5 C, -1.2 C from the station mean1911: -4.3 C, -1.9 C from the station mean1912: -1.2 C, +1.1 C from the station mean1913: -3.1 C, -0.8 C from the station mean1915: -2.3 C, 0.0 C from the station mean1916: -3.3 C, -1.0 C from the station mean1917: -4.7 C, -2.4 C from the station mean1918: -4.0 C, -1.7 C from the station mean1919: -3.0 C, -0.7 C from the station mean1920: -3.0 C, -0.6 C from the station mean1921: -2.7 C, -0.4 C from the station mean1922: -3.4 C, -1.1 C from the station mean1923: -1.8 C, +0.5 C from the station mean1924: -3.3 C, -0.9 C from the station mean1925: -3.3 C, -1.0 C from the station mean1926: 0.2 C, +2.6 C from the station mean1927: -4.0 C, -1.7 C from the station mean1928: -1.6 C, +0.7 C from the station mean1929: -1.1 C, +1.2 C from the station mean1930: -3.0 C, -0.7 C from the station mean1931: -2.1 C, +0.2 C from the station mean1933: -5.0 C, -2.7 C from the station mean1934: -2.1 C, +0.3 C from the station mean1935: -3.0 C, -0.6 C from the station mean1936: -2.6 C, -0.3 C from the station mean1937: -2.0 C, +0.3 C from the station mean1938: -2.1 C, +0.3 C from the station mean1939: -3.7 C, -1.4 C from the station mean1940: -1.2 C, +1.1 C from the station mean1941: -2.1 C, +0.2 C from the station mean1942: -1.4 C, +0.9 C from the station mean1943: -1.0 C, +1.4 C from the station mean1944: -1.1 C, +1.3 C from the station mean1945: -2.2 C, +0.2 C from the station mean1946: -3.5 C, -1.2 C from the station mean1947: -3.1 C, -0.7 C from the station mean1948: -4.4 C, -2.1 C from the station mean1949: -2.8 C, -0.5 C from the station mean1950: -3.2 C, -0.9 C from the station mean1951: -3.2 C, -0.9 C from the station mean1952: -2.3 C, 0.0 C from the station mean1953: -1.7 C, +0.6 C from the station mean1954: -3.1 C, -0.8 C from the station mean1955: -3.8 C, -1.5 C from the station mean1956: -5.3 C, -2.9 C from the station mean1957: -0.7 C, +1.6 C from the station mean1958: -1.4 C, +0.9 C from the station mean1959: -3.7 C, -1.4 C from the station mean1960: -1.7 C, +0.6 C from the station mean1961: -4.2 C, -1.9 C from the station mean1962: -1.7 C, +0.6 C from the station mean1963: -2.3 C, 0.0 C from the station mean1964: -3.7 C, -1.3 C from the station mean1965: -2.9 C, -0.6 C from the station mean1966: -4.2 C, -1.9 C from the station mean1967: -2.3 C, 0.0 C from the station mean1968: -2.8 C, -0.5 C from the station mean1970: -2.5 C, -0.2 C from the station mean1971: -4.3 C, -2.0 C from the station mean1972: -3.9 C, -1.5 C from the station mean1973: -3.0 C, -0.7 C from the station mean1975: -3.7 C, -1.4 C from the station mean1976: -1.5 C, +0.8 C from the station mean1977: -1.5 C, +0.8 C from the station mean1978: -0.2 C, +2.1 C from the station mean1979: -2.0 C, +0.3 C from the station mean1980: -2.3 C, 0.0 C from the station mean1981: -0.2 C, +2.1 C from the station mean1982: -3.3 C, -1.0 C from the station mean1983: -2.2 C, +0.1 C from the station mean1984: -2.4 C, -0.1 C from the station mean1985: -2.0 C, +0.4 C from the station mean1987: -0.6 C, +1.7 C from the station mean1988: -1.4 C, +0.9 C from the station mean1989: -2.4 C, -0.1 C from the station mean1990: -3.2 C, -0.9 C from the station mean1991: -2.0 C, +0.4 C from the station mean1992: -3.5 C, -1.2 C from the station mean1993: -0.2 C, +2.1 C from the station mean1994: -2.4 C, -0.1 C from the station mean1995: -1.9 C, +0.4 C from the station mean1996: -4.2 C, -1.9 C from the station mean1997: -1.8 C, +0.5 C from the station mean1998: -1.2 C, +1.1 C from the station mean1999: -4.1 C, -1.8 C from the station mean2000: -1.5 C, +0.8 C from the station mean2001: -1.1 C, +1.3 C from the station mean2002: -0.2 C, +2.1 C from the station mean2003: -1.0 C, +1.3 C from the station mean2004: -0.9 C, +1.5 C from the station mean2005: -0.8 C, +1.5 C from the station mean2006: -2.4 C, -0.1 C from the station mean2007: -1.8 C, +0.5 C from the station mean2008: -3.2 C, -0.9 C from the station mean2009: -2.2 C, +0.1 C from the station mean2010: -1.6 C, +0.7 C from the station mean2011: -2.0 C, +0.3 C from the station mean2012: -3.8 C, -1.5 C from the station mean2014: -0.8 C, +1.5 C from the station mean2015: -0.8 C, +1.5 C from the station mean2016: 0.2 C, +2.5 C from the station mean2017: -0.7 C, +1.6 C from the station mean2018: -0.7 C, +1.6 C from the station mean2019: 0.7 C, +3.0 C from the station mean2020: -2.5 C, -0.1 C from the station mean2021: -2.5 C, -0.1 C from the station mean2022: -1.2 C, +1.1 C from the station mean2023: -0.9 C, +1.4 C from the station mean2024: -0.9 C, +1.4 C from the station mean2025: -0.2 C, +2.1 C from the station mean190619201930194019501960197019801990200020102020
One stripe for each of 111 complete years at University Exp STN, 1906 to 2025. Blue stripes are years cooler than the station's own mean of -2.3 C (27.8 F); red stripes are warmer. The coolest year was 1956, at -5.3 C (22.5 F), and the warmest was 2019, at 0.7 C (33.2 F). The strongest colour marks a difference of 3.1 C (5.6 F).
Annual mean temperature at University Exp STN as warming stripes, 1906 to 2025
YearAnnual mean temperatureDifference from the station mean
1906-4.2 C-1.85 C
1908-3.5 C-1.16 C
1911-4.3 C-1.95 C
1912-1.2 C+1.07 C
1913-3.1 C-0.82 C
1915-2.3 C-0.01 C
1916-3.3 C-0.97 C
1917-4.7 C-2.39 C
1918-4.0 C-1.70 C
1919-3.0 C-0.71 C
1920-3.0 C-0.64 C
1921-2.7 C-0.38 C
1922-3.4 C-1.11 C
1923-1.8 C+0.48 C
1924-3.3 C-0.94 C
1925-3.3 C-0.98 C
19260.2 C+2.56 C
1927-4.0 C-1.67 C
1928-1.6 C+0.72 C
1929-1.1 C+1.23 C
1930-3.0 C-0.72 C
1931-2.1 C+0.17 C
1933-5.0 C-2.71 C
1934-2.1 C+0.25 C
1935-3.0 C-0.65 C
1936-2.6 C-0.30 C
1937-2.0 C+0.28 C
1938-2.1 C+0.26 C
1939-3.7 C-1.36 C
1940-1.2 C+1.09 C
1941-2.1 C+0.22 C
1942-1.4 C+0.91 C
1943-1.0 C+1.36 C
1944-1.1 C+1.26 C
1945-2.2 C+0.15 C
1946-3.5 C-1.16 C
1947-3.1 C-0.74 C
1948-4.4 C-2.08 C
1949-2.8 C-0.49 C
1950-3.2 C-0.90 C
1951-3.2 C-0.86 C
1952-2.3 C+0.00 C
1953-1.7 C+0.59 C
1954-3.1 C-0.76 C
1955-3.8 C-1.48 C
1956-5.3 C-2.94 C
1957-0.7 C+1.60 C
1958-1.4 C+0.87 C
1959-3.7 C-1.37 C
1960-1.7 C+0.61 C
1961-4.2 C-1.90 C
1962-1.7 C+0.60 C
1963-2.3 C+0.00 C
1964-3.7 C-1.34 C
1965-2.9 C-0.60 C
1966-4.2 C-1.88 C
1967-2.3 C-0.01 C
1968-2.8 C-0.50 C
1970-2.5 C-0.17 C
1971-4.3 C-2.02 C
1972-3.9 C-1.54 C
1973-3.0 C-0.71 C
1975-3.7 C-1.41 C
1976-1.5 C+0.80 C
1977-1.5 C+0.83 C
1978-0.2 C+2.12 C
1979-2.0 C+0.27 C
1980-2.3 C+0.02 C
1981-0.2 C+2.08 C
1982-3.3 C-0.97 C
1983-2.2 C+0.11 C
1984-2.4 C-0.11 C
1985-2.0 C+0.36 C
1987-0.6 C+1.70 C
1988-1.4 C+0.94 C
1989-2.4 C-0.13 C
1990-3.2 C-0.91 C
1991-2.0 C+0.35 C
1992-3.5 C-1.22 C
1993-0.2 C+2.13 C
1994-2.4 C-0.13 C
1995-1.9 C+0.37 C
1996-4.2 C-1.88 C
1997-1.8 C+0.48 C
1998-1.2 C+1.09 C
1999-4.1 C-1.78 C
2000-1.5 C+0.80 C
2001-1.1 C+1.26 C
2002-0.2 C+2.14 C
2003-1.0 C+1.30 C
2004-0.9 C+1.45 C
2005-0.8 C+1.47 C
2006-2.4 C-0.09 C
2007-1.8 C+0.53 C
2008-3.2 C-0.93 C
2009-2.2 C+0.12 C
2010-1.6 C+0.73 C
2011-2.0 C+0.29 C
2012-3.8 C-1.47 C
2014-0.8 C+1.48 C
2015-0.8 C+1.47 C
20160.2 C+2.52 C
2017-0.7 C+1.63 C
2018-0.7 C+1.63 C
20190.7 C+3.01 C
2020-2.5 C-0.15 C
2021-2.5 C-0.14 C
2022-1.2 C+1.09 C
2023-0.9 C+1.39 C
2024-0.9 C+1.37 C
2025-0.2 C+2.14 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1906 to 2025. In Fahrenheit: 0.3 F (0.2 to 0.4) per decade. The slope is a straight line fitted to 111 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at University Exp STN
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.2 C (0.1 to 0.2) per decade0.3 F (0.2 to 0.4) per decade1906 to 2025111Rise
Mean daily maximum0.08 C (0.01 to 0.15) per decade0.14 F (0.02 to 0.26) per decade1906 to 2025111Rise
Mean daily minimum0.2 C (0.2 to 0.3) per decade0.4 F (0.3 to 0.6) per decade1906 to 2025111Rise

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

1904 to 2026
Yearly extremes at University Exp STN: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)35.0 C (95.0 F)191530.6 C (87.1 F)123
Coldest night (TNn)-53.9 C (-65.0 F)1934-44.4 C (-47.9 F)123
Wettest day (Rx1day)83.3 mm (3.3 in)196722.9 mm (0.9 in)123
Wettest five days (Rx5day)140.7 mm (5.5 in)196739.9 mm (1.6 in)123
Longest dry spell (CDD)137 days198738 days123

Hottest day (TXx)

Hottest day (TXx) at University Exp STN by year The hottest day of the year at University Exp STN, 1904 to 2026. The record is 35.0 C (95.0 F) in 1915, marked on the chart; the median year is 30.6 C (87.1 F). 1520253035192019401960198020002020Record: 35.0 C (95.0 F) in 1915
The hottest day of the year at University Exp STN, 1904 to 2026. The record is 35.0 C (95.0 F) in 1915, marked on the chart; the median year is 30.6 C (87.1 F).
Hottest day (TXx) at University Exp STN by year
YearHottest day (TXx)
190417.8 C (64.0 F)
190527.8 C (82.0 F)
190628.9 C (84.0 F)
190728.9 C (84.0 F)
190828.3 C (82.9 F)
190927.8 C (82.0 F)
191030.0 C (86.0 F)
191129.4 C (84.9 F)
191230.6 C (87.1 F)
191331.1 C (88.0 F)
191426.1 C (79.0 F)
191535.0 C (95.0 F)
191633.3 C (91.9 F)
191730.6 C (87.1 F)
191832.8 C (91.0 F)
191932.8 C (91.0 F)
192030.0 C (86.0 F)
192130.6 C (87.1 F)
192230.0 C (86.0 F)
192332.8 C (91.0 F)
192428.9 C (84.0 F)
192529.4 C (84.9 F)
192631.7 C (89.1 F)
192731.1 C (88.0 F)
192831.1 C (88.0 F)
192930.0 C (86.0 F)
193030.0 C (86.0 F)
193130.0 C (86.0 F)
193228.3 C (82.9 F)
193331.7 C (89.1 F)
193432.2 C (90.0 F)
193528.9 C (84.0 F)
193631.1 C (88.0 F)
193733.3 C (91.9 F)
193831.1 C (88.0 F)
193930.6 C (87.1 F)
194032.8 C (91.0 F)
194129.4 C (84.9 F)
194231.7 C (89.1 F)
194330.0 C (86.0 F)
194429.4 C (84.9 F)
194527.8 C (82.0 F)
194631.1 C (88.0 F)
194730.6 C (87.1 F)
194832.8 C (91.0 F)
194929.4 C (84.9 F)
195030.6 C (87.1 F)
195131.7 C (89.1 F)
195228.9 C (84.0 F)
195331.7 C (89.1 F)
195427.8 C (82.0 F)
195533.3 C (91.9 F)
195628.9 C (84.0 F)
195731.1 C (88.0 F)
195832.8 C (91.0 F)
195928.9 C (84.0 F)
196031.7 C (89.1 F)
196127.8 C (82.0 F)
196230.0 C (86.0 F)
196329.4 C (84.9 F)
196428.3 C (82.9 F)
196527.8 C (82.0 F)
196628.9 C (84.0 F)
196732.2 C (90.0 F)
196831.1 C (88.0 F)
196935.0 C (95.0 F)
197029.4 C (84.9 F)
197131.7 C (89.1 F)
197232.8 C (91.0 F)
197328.9 C (84.0 F)
197428.9 C (84.0 F)
197532.8 C (91.0 F)
197631.7 C (89.1 F)
197732.8 C (91.0 F)
197830.0 C (86.0 F)
197929.4 C (84.9 F)
198027.8 C (82.0 F)
198128.9 C (84.0 F)
198231.1 C (88.0 F)
198333.9 C (93.0 F)
198428.3 C (82.9 F)
198529.4 C (84.9 F)
198632.2 C (90.0 F)
198732.2 C (90.0 F)
198828.9 C (84.0 F)
198930.0 C (86.0 F)
199032.2 C (90.0 F)
199133.9 C (93.0 F)
199232.2 C (90.0 F)
199332.8 C (91.0 F)
199431.7 C (89.1 F)
199529.4 C (84.9 F)
199627.8 C (82.0 F)
199730.6 C (87.1 F)
199830.6 C (87.1 F)
199932.8 C (91.0 F)
200028.9 C (84.0 F)
200130.0 C (86.0 F)
200229.4 C (84.9 F)
200331.1 C (88.0 F)
200432.2 C (90.0 F)
200529.4 C (84.9 F)
200628.3 C (82.9 F)
200728.9 C (84.0 F)
200828.9 C (84.0 F)
200932.2 C (90.0 F)
201032.8 C (91.0 F)
201130.6 C (87.1 F)
201230.0 C (86.0 F)
201333.3 C (91.9 F)
201428.9 C (84.0 F)
201531.1 C (88.0 F)
201631.1 C (88.0 F)
201732.2 C (90.0 F)
201832.2 C (90.0 F)
201931.1 C (88.0 F)
202028.3 C (82.9 F)
202131.7 C (89.1 F)
202230.6 C (87.1 F)
202333.9 C (93.0 F)
202432.8 C (91.0 F)
202531.7 C (89.1 F)
202628.9 C (84.0 F)

Coldest night (TNn)

Coldest night (TNn) at University Exp STN by year The coldest night of the year at University Exp STN, 1904 to 2026. The record is -53.9 C (-65.0 F) in 1934, marked on the chart; the median year is -44.4 C (-47.9 F). -60-50-40-30192019401960198020002020Record: -53.9 C (-65.0 F) in 1934
The coldest night of the year at University Exp STN, 1904 to 2026. The record is -53.9 C (-65.0 F) in 1934, marked on the chart; the median year is -44.4 C (-47.9 F).
Coldest night (TNn) at University Exp STN by year
YearColdest night (TNn)
1904-43.9 C (-47.0 F)
1905-51.1 C (-60.0 F)
1906-53.3 C (-63.9 F)
1907-50.0 C (-58.0 F)
1908-46.1 C (-51.0 F)
1909-47.8 C (-54.0 F)
1910-50.0 C (-58.0 F)
1911-52.2 C (-62.0 F)
1912-43.9 C (-47.0 F)
1913-46.7 C (-52.1 F)
1914-36.7 C (-34.1 F)
1915-43.9 C (-47.0 F)
1916-51.1 C (-60.0 F)
1917-47.2 C (-53.0 F)
1918-45.6 C (-50.1 F)
1919-48.9 C (-56.0 F)
1920-44.4 C (-47.9 F)
1921-48.9 C (-56.0 F)
1922-39.4 C (-38.9 F)
1923-43.9 C (-47.0 F)
1924-46.7 C (-52.1 F)
1925-49.4 C (-56.9 F)
1926-41.7 C (-43.1 F)
1927-45.6 C (-50.1 F)
1928-38.3 C (-36.9 F)
1929-43.9 C (-47.0 F)
1930-42.8 C (-45.0 F)
1931-35.6 C (-32.1 F)
1932-46.1 C (-51.0 F)
1933-48.3 C (-54.9 F)
1934-53.9 C (-65.0 F)
1935-51.1 C (-60.0 F)
1936-41.7 C (-43.1 F)
1937-41.1 C (-42.0 F)
1938-43.3 C (-45.9 F)
1939-45.0 C (-49.0 F)
1940-41.7 C (-43.1 F)
1941-41.7 C (-43.1 F)
1942-45.6 C (-50.1 F)
1943-43.3 C (-45.9 F)
1944-41.1 C (-42.0 F)
1945-40.0 C (-40.0 F)
1946-52.2 C (-62.0 F)
1947-51.7 C (-61.1 F)
1948-42.8 C (-45.0 F)
1949-45.6 C (-50.1 F)
1950-48.3 C (-54.9 F)
1951-50.6 C (-59.1 F)
1952-48.9 C (-56.0 F)
1953-47.2 C (-53.0 F)
1954-46.7 C (-52.1 F)
1955-41.7 C (-43.1 F)
1956-46.7 C (-52.1 F)
1957-43.9 C (-47.0 F)
1958-42.8 C (-45.0 F)
1959-44.4 C (-47.9 F)
1960-46.7 C (-52.1 F)
1961-51.7 C (-61.1 F)
1962-41.7 C (-43.1 F)
1963-42.8 C (-45.0 F)
1964-47.8 C (-54.0 F)
1965-47.2 C (-53.0 F)
1966-45.0 C (-49.0 F)
1967-42.8 C (-45.0 F)
1968-46.7 C (-52.1 F)
1969-52.2 C (-62.0 F)
1970-43.3 C (-45.9 F)
1971-51.1 C (-60.0 F)
1972-46.7 C (-52.1 F)
1973-48.3 C (-54.9 F)
1974-46.1 C (-51.0 F)
1975-51.1 C (-60.0 F)
1976-42.8 C (-45.0 F)
1977-47.2 C (-53.0 F)
1978-33.9 C (-29.0 F)
1979-45.0 C (-49.0 F)
1980-48.3 C (-54.9 F)
1981-41.7 C (-43.1 F)
1982-42.8 C (-45.0 F)
1983-48.3 C (-54.9 F)
1984-43.9 C (-47.0 F)
1985-45.0 C (-49.0 F)
1986-37.2 C (-35.0 F)
1987-38.3 C (-36.9 F)
1988-36.7 C (-34.1 F)
1989-48.3 C (-54.9 F)
1990-45.0 C (-49.0 F)
1991-41.1 C (-42.0 F)
1992-38.3 C (-36.9 F)
1993-46.7 C (-52.1 F)
1994-43.9 C (-47.0 F)
1995-44.4 C (-47.9 F)
1996-44.4 C (-47.9 F)
1997-47.8 C (-54.0 F)
1998-44.4 C (-47.9 F)
1999-47.8 C (-54.0 F)
2000-46.1 C (-51.0 F)
2001-37.8 C (-36.0 F)
2002-37.8 C (-36.0 F)
2003-38.9 C (-38.0 F)
2004-42.2 C (-44.0 F)
2005-45.0 C (-49.0 F)
2006-45.0 C (-49.0 F)
2007-41.1 C (-42.0 F)
2008-43.3 C (-45.9 F)
2009-45.0 C (-49.0 F)
2010-40.6 C (-41.1 F)
2011-40.6 C (-41.1 F)
2012-46.7 C (-52.1 F)
2013-42.8 C (-45.0 F)
2014-41.1 C (-42.0 F)
2015-40.0 C (-40.0 F)
2016-35.6 C (-32.1 F)
2017-43.9 C (-47.0 F)
2018-35.0 C (-31.0 F)
2019-39.4 C (-38.9 F)
2020-40.6 C (-41.1 F)
2021-38.3 C (-36.9 F)
2022-38.9 C (-38.0 F)
2023-32.8 C (-27.0 F)
2024-43.9 C (-47.0 F)
2025-42.8 C (-45.0 F)
2026-43.3 C (-45.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at University Exp STN by year The wettest day of the year at University Exp STN, 1904 to 2026. The record is 83.3 mm (3.3 in) in 1967, marked on the chart; the median year is 22.9 mm (0.9 in). 0255075100192019401960198020002020Record: 83.3 mm (3.3 in) in 1967
The wettest day of the year at University Exp STN, 1904 to 2026. The record is 83.3 mm (3.3 in) in 1967, marked on the chart; the median year is 22.9 mm (0.9 in).
Wettest day (Rx1day) at University Exp STN by year
YearWettest day (Rx1day)
19042.5 mm (0.10 in)
190513.2 mm (0.5 in)
190619.1 mm (0.8 in)
190719.1 mm (0.8 in)
190816.0 mm (0.6 in)
190923.6 mm (0.9 in)
191066.0 mm (2.6 in)
191119.1 mm (0.8 in)
191221.3 mm (0.8 in)
191324.1 mm (0.9 in)
191418.0 mm (0.7 in)
191536.8 mm (1.4 in)
191625.7 mm (1.0 in)
191714.7 mm (0.6 in)
191819.1 mm (0.8 in)
191920.3 mm (0.8 in)
192015.2 mm (0.6 in)
192134.8 mm (1.4 in)
192233.3 mm (1.3 in)
192312.7 mm (0.5 in)
192420.3 mm (0.8 in)
192540.9 mm (1.6 in)
192613.2 mm (0.5 in)
19277.6 mm (0.30 in)
192812.7 mm (0.5 in)
192936.3 mm (1.4 in)
193066.8 mm (2.6 in)
193123.4 mm (0.9 in)
193231.0 mm (1.2 in)
193320.3 mm (0.8 in)
193423.9 mm (0.9 in)
193526.4 mm (1.0 in)
193611.2 mm (0.4 in)
193722.4 mm (0.9 in)
193824.6 mm (1.0 in)
193921.3 mm (0.8 in)
194029.2 mm (1.1 in)
194119.1 mm (0.8 in)
194220.6 mm (0.8 in)
194317.5 mm (0.7 in)
194433.0 mm (1.3 in)
194530.5 mm (1.2 in)
194629.7 mm (1.2 in)
194720.3 mm (0.8 in)
194848.8 mm (1.9 in)
194933.0 mm (1.3 in)
195015.2 mm (0.6 in)
195128.4 mm (1.1 in)
195218.3 mm (0.7 in)
195331.2 mm (1.2 in)
195432.3 mm (1.3 in)
195534.8 mm (1.4 in)
195624.1 mm (0.9 in)
195711.9 mm (0.5 in)
195821.3 mm (0.8 in)
195920.8 mm (0.8 in)
196027.4 mm (1.1 in)
196140.4 mm (1.6 in)
196241.7 mm (1.6 in)
196340.9 mm (1.6 in)
196417.8 mm (0.7 in)
196513.7 mm (0.5 in)
196614.0 mm (0.6 in)
196783.3 mm (3.3 in)
196827.2 mm (1.1 in)
196921.6 mm (0.9 in)
197026.2 mm (1.0 in)
197119.1 mm (0.8 in)
197213.5 mm (0.5 in)
197330.2 mm (1.2 in)
197414.7 mm (0.6 in)
197514.0 mm (0.6 in)
197617.3 mm (0.7 in)
197724.9 mm (1.0 in)
197816.5 mm (0.6 in)
197919.1 mm (0.8 in)
198020.6 mm (0.8 in)
198126.4 mm (1.0 in)
198238.6 mm (1.5 in)
198323.4 mm (0.9 in)
198417.8 mm (0.7 in)
198516.5 mm (0.6 in)
198639.6 mm (1.6 in)
198717.5 mm (0.7 in)
198823.9 mm (0.9 in)
198930.5 mm (1.2 in)
199038.4 mm (1.5 in)
199129.7 mm (1.2 in)
199221.3 mm (0.8 in)
199312.4 mm (0.5 in)
199427.9 mm (1.1 in)
199529.7 mm (1.2 in)
199624.1 mm (0.9 in)
199721.6 mm (0.9 in)
199818.3 mm (0.7 in)
199922.9 mm (0.9 in)
200014.0 mm (0.6 in)
200117.5 mm (0.7 in)
200225.9 mm (1.0 in)
200339.9 mm (1.6 in)
200417.0 mm (0.7 in)
200519.3 mm (0.8 in)
200630.5 mm (1.2 in)
200724.1 mm (0.9 in)
200836.8 mm (1.4 in)
200925.1 mm (1.0 in)
201021.1 mm (0.8 in)
201119.6 mm (0.8 in)
201218.3 mm (0.7 in)
201317.0 mm (0.7 in)
201475.4 mm (3.0 in)
201520.8 mm (0.8 in)
201623.6 mm (0.9 in)
201730.5 mm (1.2 in)
201826.7 mm (1.1 in)
201940.4 mm (1.6 in)
202027.2 mm (1.1 in)
202129.7 mm (1.2 in)
202215.2 mm (0.6 in)
202314.7 mm (0.6 in)
202436.6 mm (1.4 in)
202532.5 mm (1.3 in)
202613.7 mm (0.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at University Exp STN by year The wettest five days of the year at University Exp STN, 1904 to 2026. The record is 140.7 mm (5.5 in) in 1967, marked on the chart; the median year is 39.9 mm (1.6 in). 050100150192019401960198020002020Record: 140.7 mm (5.5 in) in 1967
The wettest five days of the year at University Exp STN, 1904 to 2026. The record is 140.7 mm (5.5 in) in 1967, marked on the chart; the median year is 39.9 mm (1.6 in).
Wettest five days (Rx5day) at University Exp STN by year
YearWettest five days (Rx5day)
19042.8 mm (0.11 in)
190531.8 mm (1.3 in)
190639.3 mm (1.5 in)
190738.1 mm (1.5 in)
190827.4 mm (1.1 in)
190932.4 mm (1.3 in)
191038.1 mm (1.5 in)
191130.3 mm (1.2 in)
191239.6 mm (1.6 in)
191343.4 mm (1.7 in)
191440.4 mm (1.6 in)
191565.8 mm (2.6 in)
191630.3 mm (1.2 in)
191741.2 mm (1.6 in)
191837.9 mm (1.5 in)
191936.3 mm (1.4 in)
192034.2 mm (1.3 in)
192151.7 mm (2.0 in)
192261.2 mm (2.4 in)
192324.7 mm (1.0 in)
192432.7 mm (1.3 in)
192594.5 mm (3.7 in)
192642.4 mm (1.7 in)
192718.9 mm (0.7 in)
192820.7 mm (0.8 in)
192963.3 mm (2.5 in)
193094.5 mm (3.7 in)
193134.4 mm (1.4 in)
193265.5 mm (2.6 in)
193331.4 mm (1.2 in)
193449.8 mm (2.0 in)
193547.8 mm (1.9 in)
193630.3 mm (1.2 in)
193744.8 mm (1.8 in)
193856.9 mm (2.2 in)
193932.5 mm (1.3 in)
194033.5 mm (1.3 in)
194124.6 mm (1.0 in)
194256.7 mm (2.2 in)
194340.6 mm (1.6 in)
194441.4 mm (1.6 in)
194552.6 mm (2.1 in)
194641.7 mm (1.6 in)
194727.2 mm (1.1 in)
194868.4 mm (2.7 in)
194975.1 mm (3.0 in)
195023.4 mm (0.9 in)
195144.5 mm (1.8 in)
195229.8 mm (1.2 in)
195359.5 mm (2.3 in)
195455.9 mm (2.2 in)
195546.2 mm (1.8 in)
195643.4 mm (1.7 in)
195720.3 mm (0.8 in)
195831.5 mm (1.2 in)
195940.1 mm (1.6 in)
196042.4 mm (1.7 in)
196154.1 mm (2.1 in)
196290.5 mm (3.6 in)
196354.6 mm (2.1 in)
196426.4 mm (1.0 in)
196530.2 mm (1.2 in)
196635.3 mm (1.4 in)
1967140.7 mm (5.5 in)
196839.9 mm (1.6 in)
196933.1 mm (1.3 in)
197041.7 mm (1.6 in)
197135.3 mm (1.4 in)
197223.7 mm (0.9 in)
197341.4 mm (1.6 in)
197426.9 mm (1.1 in)
197520.8 mm (0.8 in)
197624.6 mm (1.0 in)
197750.5 mm (2.0 in)
197821.3 mm (0.8 in)
197932.8 mm (1.3 in)
198034.5 mm (1.4 in)
198146.2 mm (1.8 in)
198251.3 mm (2.0 in)
198339.0 mm (1.5 in)
198435.5 mm (1.4 in)
198523.8 mm (0.9 in)
198654.8 mm (2.2 in)
198723.6 mm (0.9 in)
198848.3 mm (1.9 in)
198970.3 mm (2.8 in)
199091.4 mm (3.6 in)
199156.5 mm (2.2 in)
199230.0 mm (1.2 in)
199330.4 mm (1.2 in)
199450.6 mm (2.0 in)
199542.9 mm (1.7 in)
199654.4 mm (2.1 in)
199724.2 mm (1.0 in)
199836.6 mm (1.4 in)
199939.9 mm (1.6 in)
200038.6 mm (1.5 in)
200134.0 mm (1.3 in)
200257.4 mm (2.3 in)
200331.7 mm (1.2 in)
200427.4 mm (1.1 in)
200534.5 mm (1.4 in)
200651.3 mm (2.0 in)
200734.5 mm (1.4 in)
200864.9 mm (2.6 in)
200932.6 mm (1.3 in)
201043.7 mm (1.7 in)
201137.2 mm (1.5 in)
201231.8 mm (1.3 in)
201329.4 mm (1.2 in)
201495.3 mm (3.8 in)
201557.4 mm (2.3 in)
201649.8 mm (2.0 in)
201755.7 mm (2.2 in)
201841.8 mm (1.6 in)
201975.0 mm (3.0 in)
202057.2 mm (2.3 in)
202182.6 mm (3.3 in)
202226.2 mm (1.0 in)
202324.9 mm (1.0 in)
202470.2 mm (2.8 in)
202551.4 mm (2.0 in)
202629.0 mm (1.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at University Exp STN by year The longest dry spell of the year at University Exp STN, 1904 to 2026. The record is 137 days in 1987, marked on the chart; the median year is 38 days. 050100150192019401960198020002020Record: 137 days in 1987
The longest dry spell of the year at University Exp STN, 1904 to 2026. The record is 137 days in 1987, marked on the chart; the median year is 38 days.
Longest dry spell (CDD) at University Exp STN by year
YearLongest dry spell (CDD)
190426 days
190516 days
190623 days
190723 days
190816 days
190935 days
191025 days
191111 days
191218 days
191314 days
191425 days
191525 days
191625 days
191740 days
191828 days
191992 days
192034 days
192159 days
192240 days
192338 days
192449 days
192571 days
192643 days
192737 days
192842 days
192930 days
193024 days
193152 days
193248 days
193359 days
193449 days
193564 days
193648 days
193752 days
193830 days
193938 days
194063 days
194140 days
194227 days
194324 days
194448 days
194535 days
194632 days
194755 days
194835 days
194943 days
195041 days
195129 days
195230 days
195352 days
195467 days
195529 days
195632 days
195747 days
195829 days
195945 days
196022 days
196150 days
196228 days
196341 days
196422 days
196534 days
196636 days
196727 days
196845 days
196945 days
197026 days
197137 days
197240 days
197354 days
197438 days
197541 days
197646 days
197739 days
197835 days
197950 days
198061 days
198150 days
198235 days
198345 days
198457 days
198542 days
198636 days
1987137 days
198874 days
198940 days
199049 days
199153 days
199235 days
199343 days
199438 days
199530 days
199636 days
199765 days
199842 days
199959 days
200064 days
200142 days
200215 days
20034 days
200440 days
200528 days
200642 days
200733 days
200835 days
200942 days
201056 days
201161 days
201244 days
201334 days
201453 days
201534 days
201675 days
201728 days
201822 days
201921 days
202034 days
202141 days
202256 days
202326 days
202424 days
202527 days
202634 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

111 years with a frost

Across 111 years with a frost, the median last spring frost at University Exp STN falls on 24 May and the median first autumn frost on 1 September, which leaves a median of 99 days between them.

In 1995 to 2025 the median growing season was 114 days. That is 26 days more than in 1906 to 1940.

Fitted over all years, the growing season changes by +3.5 days per decade at this station.

Frost dates and growing season at University Exp STN
MeasureMedian, all yearsEarliest period (1906 to 1940)Recent period (1995 to 2025)Recent against earliestFitted trend
Last spring frost24 May28 May17 May11 days earlier-1.2 days per decade
First autumn frost1 September24 August8 September15 days later+2.3 days per decade
Growing days99 days88 days114 days26 days more+3.5 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

102 years, 1916 to 2025

A day with at least 23.1 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 68.1 mm (2.7 in) of rain is expected about once in 100 years.

Rainfall return levels at University Exp STN: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years23.1 mm (0.9 in)
5 years32.7 mm (1.3 in)
10 years40.0 mm (1.6 in)
25 years50.3 mm (2.0 in)
50 years58.8 mm (2.3 in)
100 years68.1 mm (2.7 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 102 years of values from 1916 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: 83.3 mm (3.3 in) in 1967; 75.4 mm (3.0 in) in 2014; 66.8 mm (2.6 in) in 1930.

Station Changes

3 suspected

3 changes were suspected in the annual mean temperature of University Exp STN, at 1978, 1990 and 2000. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1978 ran 0.2 C (0.4 F) lower than in the years before (possible change).
  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1990 ran 0.4 C (0.7 F) lower than in the years before (possible change).
  • Relative to 5 neighbouring stations, the station's annual mean temperature from 2000 ran 0.5 C (0.9 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at University Exp STN, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1978-0.2-0.4possible5
1990-0.4-0.7possible5
2000+0.5+0.9possible5

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

2010 to 2025 against 1961 to 1990

Over 2010 to 2025, University Exp STN had a mean temperature of -1.2 C (29.9 F) and 378.0 mm (14.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Big Delta AP (United States, 141 km away), Tulun (Russia, 5,519 km away) and Bajandaj (Russia, 5,491 km away).

Climate twins of University Exp STN: 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
Big Delta APUnited States141 km (88 mi)-2.3 C (27.8 F)301.5 mm (11.9 in)1.35
TulunRussia5,519 km (3,429 mi)-0.7 C (30.7 F)405.5 mm (16.0 in)1.35
BajandajRussia5,491 km (3,412 mi)-1.7 C (28.9 F)353.8 mm (13.9 in)1.36

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 University Exp STN standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for University Exp STN 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-12).