Built 2026-10-15 (15 October 2026)

Partoun Weather Records (USC00426708)

Record envelope, standing records and threshold days for Partoun (USC00426708), Utah, United States, with 122 years of record.

Key Facts for Partoun

  • Partoun (USC00426708) is a weather station in Utah, United States at 39.63 latitude and -113.89 longitude, 1,457 m (4,780 ft) above sea level.
  • The station reports from 1905 to 2026, 122 years of record.
  • 1,464 records set at Partoun still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Partoun set a daily record high maximum temperature of 40.0 C (104.0 F) on 20 August 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Utah, United States, 39.63 latitude, -113.89 longitude.
  • Elevation: 1,457 m (4,780 ft).
  • Period of record: 1905 to 2026, 122 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

30 days at or beyond a record
Daily record high and record low at Partoun, with 2026 drawn through them The band shows the record high and record low for each calendar day at Partoun. The lines show the 2026 daily maximum and minimum. 30 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 Partoun. The lines show the 2026 daily maximum and minimum. 30 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Partoun, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan20.6 C (69.1 F)-32.2 C (-26.0 F)13.9 C (57.0 F)-15.0 C (5.0 F)
Feb23.3 C (73.9 F)-33.9 C (-29.0 F)20.0 C (68.0 F)-11.7 C (10.9 F)
Mar32.8 C (91.0 F)-18.9 C (-2.0 F)32.8 C (91.0 F)-8.3 C (17.1 F)
Apr33.3 C (91.9 F)-12.2 C (10.0 F)27.8 C (82.0 F)-8.9 C (16.0 F)
May37.8 C (100.0 F)-8.9 C (16.0 F)35.6 C (96.1 F)-2.8 C (27.0 F)
Jun42.2 C (108.0 F)-3.9 C (25.0 F)38.3 C (100.9 F)3.9 C (39.0 F)
Jul42.2 C (108.0 F)2.2 C (36.0 F)42.2 C (108.0 F)10.6 C (51.1 F)
Aug41.1 C (106.0 F)-0.6 C (30.9 F)41.1 C (106.0 F)11.7 C (53.1 F)
Sep39.4 C (102.9 F)-6.1 C (21.0 F)26.1 C (79.0 F)3.9 C (39.0 F)
Oct33.9 C (93.0 F)-20.0 C (-4.0 F)n/an/a
Nov25.6 C (78.1 F)-21.7 C (-7.1 F)n/an/a
Dec23.9 C (75.0 F)-31.1 C (-24.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Partoun by the year they were set 1,464 records at Partoun still stand. 1964 holds the most, with 39. 0102030401905: 201906: 291907: 231950: 151951: 201952: 191953: 251954: 231955: 241956: 171957: 211958: 171959: 161960: 221961: 171962: 311963: 181964: 391965: 331966: 231967: 141968: 131969: 211970: 281971: 161972: 311973: 231974: 221975: 241976: 131977: 161978: 201979: 51980: 111981: 161982: 191983: 121984: 171985: 211986: 141987: 191988: 171989: 211990: 161991: 81992: 131993: 111994: 101995: 261996: 161997: 181998: 131999: 82000: 162001: 122002: 172003: 282004: 102005: 92006: 152007: 172008: 92009: 212010: 202011: 162012: 222013: 232014: 162015: 172016: 122017: 242018: 42019: 192020: 192021: 172022: 182023: 92024: 102025: 312026: 291905195519631971197919871995200320112019
1,464 records at Partoun still stand. 1964 holds the most, with 39.
Standing records at Partoun by the year they were set
Year setStanding records
190520
190629
190723
195015
195120
195219
195325
195423
195524
195617
195721
195817
195916
196022
196117
196231
196318
196439
196533
196623
196714
196813
196921
197028
197116
197231
197323
197422
197524
197613
197716
197820
19795
198011
198116
198219
198312
198417
198521
198614
198719
198817
198921
199016
19918
199213
199311
199410
199526
199616
199718
199813
19998
200016
200112
200217
200328
200410
20059
200615
200717
20089
200921
201020
201116
201222
201323
201416
201517
201612
201724
20184
201919
202019
202117
202218
20239
202410
202531
202629

All-Time Record Progression

11 new records
When Partoun set new all-time records 11 all-time records were set at Partoun between 25 September 1982 and 7 August 2019. Each dot is a new record. Record daily precipitationRecord snow depthRecord low minimum temperatureRecord high minimum temperatureRecord high maximum temperature25 September 1982: Record daily precipitation 50.3 mm (2.0 in)11 November 1985: Record snow depth 17.8 cm (7.0 in)5 January 1988: Record snow depth 20.3 cm (8.0 in)6 January 1988: Record snow depth 22.9 cm (9.0 in)6 February 1989: Record low minimum temperature -33.9 C (-29.0 F)8 January 1993: Record snow depth 25.4 cm (10.0 in)11 January 1993: Record snow depth 27.9 cm (11.0 in)18 January 1993: Record snow depth 33.0 cm (13.0 in)13 September 2009: Record high minimum temperature 23.3 C (73.9 F)29 June 2013: Record high maximum temperature 42.2 C (108.0 F)7 August 2019: Record high minimum temperature 23.9 C (75.0 F)19851990199520002005201020152020
11 all-time records were set at Partoun between 25 September 1982 and 7 August 2019. Each dot is a new record.
When Partoun set new all-time records
DateKindDetail
1982-09-25Record daily precipitationRecord daily precipitation 50.3 mm (2.0 in)
1985-11-11Record snow depthRecord snow depth 17.8 cm (7.0 in)
1988-01-05Record snow depthRecord snow depth 20.3 cm (8.0 in)
1988-01-06Record snow depthRecord snow depth 22.9 cm (9.0 in)
1989-02-06Record low minimum temperatureRecord low minimum temperature -33.9 C (-29.0 F)
1993-01-08Record snow depthRecord snow depth 25.4 cm (10.0 in)
1993-01-11Record snow depthRecord snow depth 27.9 cm (11.0 in)
1993-01-18Record snow depthRecord snow depth 33.0 cm (13.0 in)
2009-09-13Record high minimum temperatureRecord high minimum temperature 23.3 C (73.9 F)
2013-06-29Record high maximum temperatureRecord high maximum temperature 42.2 C (108.0 F)
2019-08-07Record high minimum temperatureRecord high minimum temperature 23.9 C (75.0 F)

Wettest Day of Each Month

Sep: 50.3 mm (2.0 in)
Record daily precipitation for each month at Partoun The wettest day on record for each calendar month at Partoun. The most was 50.3 mm (2.0 in) on 25 September 1982. 0204060 Jan: 19.6 mm (0.8 in), 5 January 1988 Jan Feb: 22.9 mm (0.9 in), 21 February 1969 Feb Mar: 24.1 mm (0.9 in), 13 March 1996 Mar Apr: 27.9 mm (1.1 in), 15 April 2003 Apr May: 38.1 mm (1.5 in), 28 May 1906 May Jun: 37.3 mm (1.5 in), 7 June 1964 Jun Jul: 33.0 mm (1.3 in), 21 July 1987 Jul Aug: 38.1 mm (1.5 in), 30 August 2000 Aug Sep: 50.3 mm (2.0 in), 25 September 1982 Sep Oct: 30.0 mm (1.2 in), 12 October 1975 Oct Nov: 40.6 mm (1.6 in), 1 November 1906 Nov Dec: 18.8 mm (0.7 in), 29 December 1951 Dec
The wettest day on record for each calendar month at Partoun. The most was 50.3 mm (2.0 in) on 25 September 1982.
Record daily precipitation for each month at Partoun
MonthRecord daily precipitation (mm)Date
Jan19.6 mm (0.8 in)5 January 1988
Feb22.9 mm (0.9 in)21 February 1969
Mar24.1 mm (0.9 in)13 March 1996
Apr27.9 mm (1.1 in)15 April 2003
May38.1 mm (1.5 in)28 May 1906
Jun37.3 mm (1.5 in)7 June 1964
Jul33.0 mm (1.3 in)21 July 1987
Aug38.1 mm (1.5 in)30 August 2000
Sep50.3 mm (2.0 in)25 September 1982
Oct30.0 mm (1.2 in)12 October 1975
Nov40.6 mm (1.6 in)1 November 1906
Dec18.8 mm (0.7 in)29 December 1951

Period of Record Coverage

1905 to 2026
Days with data per year at Partoun 81 years of record at Partoun, 1905 to 2026. 10 years have data for under 90 percent of days and are left out of rankings: 1905, 1907, 1908, 1950, 1956, 1968, 1979, 1980 and others. 1905: 306 of 365 days1906: 355 of 365 days1907: 327 of 365 days1908: 53 of 366 days1950: 272 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 362 of 365 days1954: 362 of 365 days1955: 356 of 365 days1956: 266 of 366 days1957: 365 of 365 days1958: 361 of 365 days1959: 361 of 365 days1960: 361 of 366 days1961: 356 of 365 days1962: 354 of 365 days1963: 360 of 365 days1964: 364 of 366 days1965: 364 of 365 days1966: 365 of 365 days1967: 363 of 365 days1968: 307 of 366 days1969: 363 of 365 days1970: 361 of 365 days1971: 362 of 365 days1972: 363 of 366 days1973: 365 of 365 days1974: 363 of 365 days1975: 360 of 365 days1976: 365 of 366 days1977: 334 of 365 days1978: 364 of 365 days1979: 198 of 365 days1980: 226 of 366 days1981: 359 of 365 days1982: 357 of 365 days1983: 352 of 365 days1984: 361 of 366 days1985: 357 of 365 days1986: 363 of 365 days1987: 359 of 365 days1988: 362 of 366 days1989: 364 of 365 days1990: 359 of 365 days1991: 358 of 365 days1992: 269 of 366 days1993: 363 of 365 days1994: 362 of 365 days1995: 362 of 365 days1996: 364 of 366 days1997: 360 of 365 days1998: 365 of 365 days1999: 364 of 365 days2000: 365 of 366 days2001: 363 of 365 days2002: 360 of 365 days2003: 363 of 365 days2004: 366 of 366 days2005: 363 of 365 days2006: 365 of 365 days2007: 364 of 365 days2008: 363 of 366 days2009: 361 of 365 days2010: 361 of 365 days2011: 364 of 365 days2012: 335 of 366 days2013: 337 of 365 days2014: 357 of 365 days2015: 361 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 365 of 366 days2021: 364 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 362 of 366 days2025: 364 of 365 days2026: 244 of 365 days1905195019651980199520102025
81 years of record at Partoun, 1905 to 2026. 10 years have data for under 90 percent of days and are left out of rankings: 1905, 1907, 1908, 1950, 1956, 1968, 1979, 1980 and others.
Days with data per year at Partoun
YearDays with dataShare of yearComplete
190530684%No
190635597%Yes
190732790%No
19085314%No
195027275%No
1951365100%Yes
1952366100%Yes
195336299%Yes
195436299%Yes
195535698%Yes
195626673%No
1957365100%Yes
195836199%Yes
195936199%Yes
196036199%Yes
196135698%Yes
196235497%Yes
196336099%Yes
196436499%Yes
1965364100%Yes
1966365100%Yes
196736399%Yes
196830784%No
196936399%Yes
197036199%Yes
197136299%Yes
197236399%Yes
1973365100%Yes
197436399%Yes
197536099%Yes
1976365100%Yes
197733492%Yes
1978364100%Yes
197919854%No
198022662%No
198135998%Yes
198235798%Yes
198335296%Yes
198436199%Yes
198535798%Yes
198636399%Yes
198735998%Yes
198836299%Yes
1989364100%Yes
199035998%Yes
199135898%Yes
199226973%No
199336399%Yes
199436299%Yes
199536299%Yes
199636499%Yes
199736099%Yes
1998365100%Yes
1999364100%Yes
2000365100%Yes
200136399%Yes
200236099%Yes
200336399%Yes
2004366100%Yes
200536399%Yes
2006365100%Yes
2007364100%Yes
200836399%Yes
200936199%Yes
201036199%Yes
2011364100%Yes
201233592%Yes
201333792%Yes
201435798%Yes
201536199%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020365100%Yes
2021364100%Yes
2022365100%Yes
2023365100%Yes
202436299%Yes
2025364100%Yes
202624467%No

Latest Records

20
Latest records at Partoun
DateStationRecordValueBeat old record byOld record stoodSignificance
20 August 2026Partoun, USdaily high max (Provisional)40.0 C (104.0 F)1.1 C (2.0 F)65 years32 of 100 (Routine)
18 August 2026Partoun, USdaily high max (Provisional)38.3 C (100.9 F)0.5 C (0.9 F)24 years18 of 100 (Routine)
8 August 2026Partoun, USdaily high max39.4 C (102.9 F)1.1 C (2.0 F)60 years31 of 100 (Routine)
7 August 2026Partoun, USdaily high max40.0 C (104.0 F)0.6 C (1.1 F)1 year11 of 100 (Routine)
6 August 2026Partoun, USdaily high max (Tie)40.0 C (104.0 F)tie1 year2 of 100 (Routine)
3 August 2026Partoun, USdaily high max (Tie)40.0 C (104.0 F)tie5 years2 of 100 (Routine)
2 August 2026Partoun, USmonthly high max (Tie)41.1 C (106.0 F)tie5 years5 of 100 (Routine)
1 August 2026Partoun, USmonthly high max (Tie)41.1 C (106.0 F)tie5 years5 of 100 (Routine)
31 July 2026Partoun, USdaily high max (Tie)40.0 C (104.0 F)tie25 years4 of 100 (Routine)
28 July 2026Partoun, USdaily high max (Tie)39.4 C (102.9 F)tie32 years4 of 100 (Routine)
27 July 2026Partoun, USdaily high min22.2 C (72.0 F)2.8 C (5.0 F)28 years26 of 100 (Routine)
26 July 2026Partoun, USdaily high max41.1 C (106.0 F)0.5 C (0.9 F)65 years30 of 100 (Routine)
25 July 2026Partoun, USdaily high max40.6 C (105.1 F)1.2 C (2.2 F)16 years18 of 100 (Routine)
24 July 2026Partoun, USdaily high max39.4 C (102.9 F)1.1 C (2.0 F)63 years31 of 100 (Routine)
24 July 2026Partoun, USdaily high min22.2 C (72.0 F)0.5 C (0.9 F)67 years31 of 100 (Routine)
21 July 2026Partoun, USdaily high min (Tie)20.6 C (69.1 F)tie36 years5 of 100 (Routine)
14 July 2026Partoun, USdaily high min22.2 C (72.0 F)2.2 C (4.0 F)1 year16 of 100 (Routine)
13 July 2026Partoun, USdaily high max (Tie)41.1 C (106.0 F)tie24 years4 of 100 (Routine)
12 July 2026Partoun, USall-time high max (Tie)42.2 C (108.0 F)tie13 years8 of 100 (Routine)
11 July 2026Partoun, USdaily high max (Tie)41.1 C (106.0 F)tie13 years3 of 100 (Routine)

Climate Trend

67 complete years, 1906 to 2025
Annual mean temperature at Partoun as warming stripes, 1906 to 2025 One stripe for each of 67 complete years at Partoun, 1906 to 2025. Blue stripes are years cooler than the station's own mean of 10.3 C (50.5 F); red stripes are warmer. The coolest year was 1984, at 8.3 C (46.9 F), and the warmest was 2025, at 12.5 C (54.5 F). The strongest colour marks a difference of 2.3 C (4.1 F). 1906: 9.1 C, -1.2 C from the station mean1951: 9.9 C, -0.4 C from the station mean1952: 10.3 C, 0.0 C from the station mean1954: 10.3 C, +0.1 C from the station mean1955: 8.9 C, -1.4 C from the station mean1957: 9.4 C, -0.8 C from the station mean1958: 10.6 C, +0.3 C from the station mean1959: 10.2 C, 0.0 C from the station mean1960: 10.1 C, -0.1 C from the station mean1961: 9.8 C, -0.4 C from the station mean1962: 9.4 C, -0.8 C from the station mean1963: 9.8 C, -0.5 C from the station mean1964: 8.8 C, -1.5 C from the station mean1965: 9.0 C, -1.3 C from the station mean1966: 9.7 C, -0.6 C from the station mean1967: 9.8 C, -0.4 C from the station mean1969: 10.6 C, +0.4 C from the station mean1970: 9.7 C, -0.6 C from the station mean1971: 9.9 C, -0.3 C from the station mean1972: 10.4 C, +0.1 C from the station mean1973: 9.9 C, -0.4 C from the station mean1974: 10.7 C, +0.5 C from the station mean1975: 9.3 C, -1.0 C from the station mean1976: 9.9 C, -0.4 C from the station mean1978: 10.6 C, +0.4 C from the station mean1981: 11.1 C, +0.8 C from the station mean1982: 9.3 C, -0.9 C from the station mean1983: 10.1 C, -0.1 C from the station mean1984: 8.3 C, -2.0 C from the station mean1985: 9.4 C, -0.8 C from the station mean1986: 10.9 C, +0.6 C from the station mean1987: 10.1 C, -0.1 C from the station mean1988: 10.2 C, -0.1 C from the station mean1989: 10.0 C, -0.3 C from the station mean1990: 10.2 C, -0.1 C from the station mean1991: 9.6 C, -0.6 C from the station mean1993: 8.7 C, -1.6 C from the station mean1994: 11.2 C, +0.9 C from the station mean1995: 10.7 C, +0.5 C from the station mean1996: 10.9 C, +0.7 C from the station mean1997: 10.5 C, +0.3 C from the station mean1998: 10.4 C, +0.2 C from the station mean1999: 10.6 C, +0.4 C from the station mean2000: 11.3 C, +1.0 C from the station mean2001: 11.2 C, +0.9 C from the station mean2002: 9.9 C, -0.3 C from the station mean2003: 11.3 C, +1.1 C from the station mean2004: 10.4 C, +0.1 C from the station mean2005: 10.5 C, +0.2 C from the station mean2006: 10.2 C, -0.1 C from the station mean2007: 10.2 C, -0.1 C from the station mean2008: 10.1 C, -0.2 C from the station mean2009: 10.2 C, 0.0 C from the station mean2010: 10.4 C, +0.1 C from the station mean2011: 9.8 C, -0.4 C from the station mean2014: 11.1 C, +0.8 C from the station mean2015: 11.5 C, +1.2 C from the station mean2016: 10.5 C, +0.3 C from the station mean2017: 11.3 C, +1.0 C from the station mean2018: 11.0 C, +0.7 C from the station mean2019: 10.4 C, +0.1 C from the station mean2020: 11.2 C, +1.0 C from the station mean2021: 11.5 C, +1.3 C from the station mean2022: 10.4 C, +0.1 C from the station mean2023: 10.1 C, -0.1 C from the station mean2024: 11.9 C, +1.7 C from the station mean2025: 12.5 C, +2.2 C from the station mean190619201930194019501960197019801990200020102020
One stripe for each of 67 complete years at Partoun, 1906 to 2025. Blue stripes are years cooler than the station's own mean of 10.3 C (50.5 F); red stripes are warmer. The coolest year was 1984, at 8.3 C (46.9 F), and the warmest was 2025, at 12.5 C (54.5 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Partoun as warming stripes, 1906 to 2025
YearAnnual mean temperatureDifference from the station mean
19069.1 C-1.19 C
19519.9 C-0.39 C
195210.3 C+0.04 C
195410.3 C+0.06 C
19558.9 C-1.41 C
19579.4 C-0.82 C
195810.6 C+0.29 C
195910.2 C-0.04 C
196010.1 C-0.12 C
19619.8 C-0.44 C
19629.4 C-0.83 C
19639.8 C-0.50 C
19648.8 C-1.49 C
19659.0 C-1.30 C
19669.7 C-0.57 C
19679.8 C-0.42 C
196910.6 C+0.36 C
19709.7 C-0.59 C
19719.9 C-0.33 C
197210.4 C+0.14 C
19739.9 C-0.37 C
197410.7 C+0.48 C
19759.3 C-0.97 C
19769.9 C-0.38 C
197810.6 C+0.38 C
198111.1 C+0.80 C
19829.3 C-0.92 C
198310.1 C-0.14 C
19848.3 C-1.99 C
19859.4 C-0.84 C
198610.9 C+0.62 C
198710.1 C-0.14 C
198810.2 C-0.09 C
198910.0 C-0.31 C
199010.2 C-0.08 C
19919.6 C-0.64 C
19938.7 C-1.57 C
199411.2 C+0.89 C
199510.7 C+0.48 C
199610.9 C+0.67 C
199710.5 C+0.28 C
199810.4 C+0.16 C
199910.6 C+0.36 C
200011.3 C+1.00 C
200111.2 C+0.90 C
20029.9 C-0.34 C
200311.3 C+1.05 C
200410.4 C+0.12 C
200510.5 C+0.22 C
200610.2 C-0.07 C
200710.2 C-0.06 C
200810.1 C-0.16 C
200910.2 C-0.05 C
201010.4 C+0.12 C
20119.8 C-0.42 C
201411.1 C+0.80 C
201511.5 C+1.22 C
201610.5 C+0.26 C
201711.3 C+1.02 C
201811.0 C+0.70 C
201910.4 C+0.10 C
202011.2 C+0.97 C
202111.5 C+1.28 C
202210.4 C+0.13 C
202310.1 C-0.12 C
202411.9 C+1.67 C
202512.5 C+2.24 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1906 to 2025. In Fahrenheit: 0.3 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 67 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Partoun
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.2 C (0.1 to 0.3) per decade0.3 F (0.2 to 0.5) per decade1906 to 202567Rise
Mean daily maximum0.1 C (0.1 to 0.2) per decade0.3 F (0.1 to 0.4) per decade1906 to 202567Rise
Mean daily minimum0.2 C (0.2 to 0.3) per decade0.4 F (0.3 to 0.6) per decade1906 to 202567Rise

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

1905 to 2026
Yearly extremes at Partoun: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)42.2 C (108.0 F)201339.4 C (102.9 F)81
Coldest night (TNn)-33.9 C (-29.0 F)1989-22.8 C (-9.0 F)81
Wettest day (Rx1day)50.3 mm (2.0 in)198220.6 mm (0.8 in)81
Wettest five days (Rx5day)71.1 mm (2.8 in)198230.5 mm (1.2 in)81
Longest dry spell (CDD)116 days195353 days81

Hottest day (TXx)

Hottest day (TXx) at Partoun by year The hottest day of the year at Partoun, 1905 to 2026. The record is 42.2 C (108.0 F) in 2013, marked on the chart; the median year is 39.4 C (102.9 F). 1020304050192019401960198020002020Record: 42.2 C (108.0 F) in 2013
The hottest day of the year at Partoun, 1905 to 2026. The record is 42.2 C (108.0 F) in 2013, marked on the chart; the median year is 39.4 C (102.9 F).
Hottest day (TXx) at Partoun by year
YearHottest day (TXx)
190537.2 C (99.0 F)
190635.6 C (96.1 F)
190736.7 C (98.1 F)
190818.9 C (66.0 F)
195037.8 C (100.0 F)
195138.9 C (102.0 F)
195237.8 C (100.0 F)
195338.3 C (100.9 F)
195440.0 C (104.0 F)
195538.3 C (100.9 F)
195637.8 C (100.0 F)
195738.9 C (102.0 F)
195838.9 C (102.0 F)
195938.9 C (102.0 F)
196040.6 C (105.1 F)
196140.6 C (105.1 F)
196238.9 C (102.0 F)
196338.3 C (100.9 F)
196438.9 C (102.0 F)
196537.8 C (100.0 F)
196640.0 C (104.0 F)
196740.0 C (104.0 F)
196838.9 C (102.0 F)
196939.4 C (102.9 F)
197039.4 C (102.9 F)
197139.4 C (102.9 F)
197240.6 C (105.1 F)
197340.6 C (105.1 F)
197440.6 C (105.1 F)
197538.9 C (102.0 F)
197641.7 C (107.1 F)
197739.4 C (102.9 F)
197840.6 C (105.1 F)
197940.0 C (104.0 F)
198036.7 C (98.1 F)
198139.4 C (102.9 F)
198238.9 C (102.0 F)
198338.3 C (100.9 F)
198437.2 C (99.0 F)
198541.1 C (106.0 F)
198638.9 C (102.0 F)
198737.8 C (100.0 F)
198838.9 C (102.0 F)
198938.9 C (102.0 F)
199038.9 C (102.0 F)
199138.9 C (102.0 F)
199238.3 C (100.9 F)
199337.2 C (99.0 F)
199440.0 C (104.0 F)
199539.4 C (102.9 F)
199638.9 C (102.0 F)
199739.4 C (102.9 F)
199840.6 C (105.1 F)
199938.3 C (100.9 F)
200040.6 C (105.1 F)
200140.6 C (105.1 F)
200241.1 C (106.0 F)
200340.6 C (105.1 F)
200437.8 C (100.0 F)
200541.7 C (107.1 F)
200638.9 C (102.0 F)
200740.6 C (105.1 F)
200838.9 C (102.0 F)
200939.4 C (102.9 F)
201040.6 C (105.1 F)
201139.4 C (102.9 F)
201241.1 C (106.0 F)
201342.2 C (108.0 F)
201439.4 C (102.9 F)
201540.0 C (104.0 F)
201639.4 C (102.9 F)
201739.4 C (102.9 F)
201838.9 C (102.0 F)
201938.9 C (102.0 F)
202041.1 C (106.0 F)
202141.1 C (106.0 F)
202240.0 C (104.0 F)
202342.2 C (108.0 F)
202441.1 C (106.0 F)
202540.6 C (105.1 F)
202642.2 C (108.0 F)

Coldest night (TNn)

Coldest night (TNn) at Partoun by year The coldest night of the year at Partoun, 1905 to 2026. The record is -33.9 C (-29.0 F) in 1989, marked on the chart; the median year is -22.8 C (-9.0 F). -35-30-25-20-15-10192019401960198020002020Record: -33.9 C (-29.0 F) in 1989
The coldest night of the year at Partoun, 1905 to 2026. The record is -33.9 C (-29.0 F) in 1989, marked on the chart; the median year is -22.8 C (-9.0 F).
Coldest night (TNn) at Partoun by year
YearColdest night (TNn)
1905-23.9 C (-11.0 F)
1906-20.6 C (-5.1 F)
1907-20.6 C (-5.1 F)
1908-15.0 C (5.0 F)
1950-15.6 C (3.9 F)
1951-25.6 C (-14.1 F)
1952-20.0 C (-4.0 F)
1953-14.4 C (6.1 F)
1954-25.6 C (-14.1 F)
1955-27.8 C (-18.0 F)
1956-22.2 C (-8.0 F)
1957-28.9 C (-20.0 F)
1958-17.2 C (1.0 F)
1959-17.2 C (1.0 F)
1960-27.2 C (-17.0 F)
1961-21.7 C (-7.1 F)
1962-27.8 C (-18.0 F)
1963-30.0 C (-22.0 F)
1964-21.7 C (-7.1 F)
1965-26.7 C (-16.1 F)
1966-25.6 C (-14.1 F)
1967-20.6 C (-5.1 F)
1968-26.1 C (-15.0 F)
1969-22.8 C (-9.0 F)
1970-26.7 C (-16.1 F)
1971-30.6 C (-23.1 F)
1972-31.1 C (-24.0 F)
1973-24.4 C (-11.9 F)
1974-22.8 C (-9.0 F)
1975-20.6 C (-5.1 F)
1976-22.8 C (-9.0 F)
1977-19.4 C (-2.9 F)
1978-26.1 C (-15.0 F)
1979-18.9 C (-2.0 F)
1980-29.4 C (-20.9 F)
1981-18.3 C (-0.9 F)
1982-26.7 C (-16.1 F)
1983-18.9 C (-2.0 F)
1984-28.9 C (-20.0 F)
1985-26.1 C (-15.0 F)
1986-17.8 C (0.0 F)
1987-27.2 C (-17.0 F)
1988-26.7 C (-16.1 F)
1989-33.9 C (-29.0 F)
1990-30.0 C (-22.0 F)
1991-22.2 C (-8.0 F)
1992-22.8 C (-9.0 F)
1993-28.9 C (-20.0 F)
1994-18.3 C (-0.9 F)
1995-20.6 C (-5.1 F)
1996-22.8 C (-9.0 F)
1997-25.0 C (-13.0 F)
1998-26.7 C (-16.1 F)
1999-19.4 C (-2.9 F)
2000-17.8 C (0.0 F)
2001-18.3 C (-0.9 F)
2002-23.9 C (-11.0 F)
2003-17.2 C (1.0 F)
2004-18.3 C (-0.9 F)
2005-20.0 C (-4.0 F)
2006-21.1 C (-6.0 F)
2007-28.9 C (-20.0 F)
2008-23.9 C (-11.0 F)
2009-23.3 C (-9.9 F)
2010-20.0 C (-4.0 F)
2011-23.9 C (-11.0 F)
2012-21.1 C (-6.0 F)
2013-29.4 C (-20.9 F)
2014-20.0 C (-4.0 F)
2015-21.1 C (-6.0 F)
2016-26.1 C (-15.0 F)
2017-32.2 C (-26.0 F)
2018-18.9 C (-2.0 F)
2019-22.2 C (-8.0 F)
2020-23.9 C (-11.0 F)
2021-17.2 C (1.0 F)
2022-18.9 C (-2.0 F)
2023-22.8 C (-9.0 F)
2024-17.2 C (1.0 F)
2025-20.6 C (-5.1 F)
2026-15.0 C (5.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Partoun by year The wettest day of the year at Partoun, 1905 to 2026. The record is 50.3 mm (2.0 in) in 1982, marked on the chart; the median year is 20.6 mm (0.8 in). 0204060192019401960198020002020Record: 50.3 mm (2.0 in) in 1982
The wettest day of the year at Partoun, 1905 to 2026. The record is 50.3 mm (2.0 in) in 1982, marked on the chart; the median year is 20.6 mm (0.8 in).
Wettest day (Rx1day) at Partoun by year
YearWettest day (Rx1day)
190542.4 mm (1.7 in)
190640.6 mm (1.6 in)
190730.5 mm (1.2 in)
190810.2 mm (0.4 in)
195014.2 mm (0.6 in)
195125.4 mm (1.0 in)
195212.4 mm (0.5 in)
19539.1 mm (0.36 in)
195415.2 mm (0.6 in)
195526.2 mm (1.0 in)
195627.2 mm (1.1 in)
195715.2 mm (0.6 in)
195814.0 mm (0.6 in)
19596.9 mm (0.27 in)
196015.7 mm (0.6 in)
196112.2 mm (0.5 in)
196227.9 mm (1.1 in)
196316.5 mm (0.6 in)
196437.3 mm (1.5 in)
196538.1 mm (1.5 in)
196615.7 mm (0.6 in)
196726.7 mm (1.1 in)
196822.1 mm (0.9 in)
196922.9 mm (0.9 in)
197016.3 mm (0.6 in)
197116.5 mm (0.6 in)
197211.7 mm (0.5 in)
197321.1 mm (0.8 in)
197414.0 mm (0.6 in)
197530.0 mm (1.2 in)
197616.3 mm (0.6 in)
197735.1 mm (1.4 in)
197824.9 mm (1.0 in)
197923.4 mm (0.9 in)
198013.2 mm (0.5 in)
198124.9 mm (1.0 in)
198250.3 mm (2.0 in)
198336.3 mm (1.4 in)
198420.3 mm (0.8 in)
198523.6 mm (0.9 in)
198627.4 mm (1.1 in)
198733.0 mm (1.3 in)
198819.6 mm (0.8 in)
198923.6 mm (0.9 in)
199016.3 mm (0.6 in)
199116.3 mm (0.6 in)
199223.6 mm (0.9 in)
199326.2 mm (1.0 in)
199416.8 mm (0.7 in)
199519.3 mm (0.8 in)
199624.1 mm (0.9 in)
199729.0 mm (1.1 in)
199816.0 mm (0.6 in)
199911.2 mm (0.4 in)
200038.1 mm (1.5 in)
200116.3 mm (0.6 in)
200218.5 mm (0.7 in)
200327.9 mm (1.1 in)
200429.2 mm (1.1 in)
200523.6 mm (0.9 in)
200613.0 mm (0.5 in)
200711.9 mm (0.5 in)
20084.3 mm (0.17 in)
200925.4 mm (1.0 in)
201019.1 mm (0.8 in)
201137.3 mm (1.5 in)
201219.1 mm (0.8 in)
201318.8 mm (0.7 in)
201431.8 mm (1.3 in)
201523.6 mm (0.9 in)
201613.5 mm (0.5 in)
201722.6 mm (0.9 in)
201815.2 mm (0.6 in)
201919.1 mm (0.8 in)
202014.0 mm (0.6 in)
202130.7 mm (1.2 in)
202210.9 mm (0.4 in)
202313.5 mm (0.5 in)
202422.9 mm (0.9 in)
202520.6 mm (0.8 in)
202622.9 mm (0.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Partoun by year The wettest five days of the year at Partoun, 1905 to 2026. The record is 71.1 mm (2.8 in) in 1982, marked on the chart; the median year is 30.5 mm (1.2 in). 020406080192019401960198020002020Record: 71.1 mm (2.8 in) in 1982
The wettest five days of the year at Partoun, 1905 to 2026. The record is 71.1 mm (2.8 in) in 1982, marked on the chart; the median year is 30.5 mm (1.2 in).
Wettest five days (Rx5day) at Partoun by year
YearWettest five days (Rx5day)
190542.4 mm (1.7 in)
190645.7 mm (1.8 in)
190730.5 mm (1.2 in)
190828.0 mm (1.1 in)
195016.3 mm (0.6 in)
195132.7 mm (1.3 in)
195232.7 mm (1.3 in)
19539.4 mm (0.37 in)
195420.8 mm (0.8 in)
195543.4 mm (1.7 in)
195631.3 mm (1.2 in)
195727.2 mm (1.1 in)
195815.3 mm (0.6 in)
195912.7 mm (0.5 in)
196018.3 mm (0.7 in)
196115.4 mm (0.6 in)
196227.9 mm (1.1 in)
196341.9 mm (1.6 in)
196455.1 mm (2.2 in)
196547.8 mm (1.9 in)
196628.1 mm (1.1 in)
196754.9 mm (2.2 in)
196837.6 mm (1.5 in)
196943.5 mm (1.7 in)
197031.6 mm (1.2 in)
197125.8 mm (1.0 in)
197215.5 mm (0.6 in)
197337.6 mm (1.5 in)
197431.2 mm (1.2 in)
197562.2 mm (2.4 in)
197618.6 mm (0.7 in)
197759.2 mm (2.3 in)
197829.0 mm (1.1 in)
197923.4 mm (0.9 in)
198021.6 mm (0.9 in)
198145.0 mm (1.8 in)
198271.1 mm (2.8 in)
198348.6 mm (1.9 in)
198435.7 mm (1.4 in)
198527.4 mm (1.1 in)
198633.3 mm (1.3 in)
198736.6 mm (1.4 in)
198823.7 mm (0.9 in)
198947.2 mm (1.9 in)
199018.8 mm (0.7 in)
199151.7 mm (2.0 in)
199223.6 mm (0.9 in)
199330.8 mm (1.2 in)
199422.4 mm (0.9 in)
199539.6 mm (1.6 in)
199626.6 mm (1.0 in)
199746.6 mm (1.8 in)
199825.1 mm (1.0 in)
199924.4 mm (1.0 in)
200040.6 mm (1.6 in)
200121.1 mm (0.8 in)
200230.5 mm (1.2 in)
200327.9 mm (1.1 in)
200429.2 mm (1.1 in)
200524.9 mm (1.0 in)
200616.7 mm (0.7 in)
200725.1 mm (1.0 in)
20086.8 mm (0.27 in)
200935.1 mm (1.4 in)
201038.9 mm (1.5 in)
201163.3 mm (2.5 in)
201229.8 mm (1.2 in)
201337.3 mm (1.5 in)
201431.8 mm (1.3 in)
201547.8 mm (1.9 in)
201621.8 mm (0.9 in)
201726.4 mm (1.0 in)
201838.1 mm (1.5 in)
201926.8 mm (1.1 in)
202014.0 mm (0.6 in)
202145.8 mm (1.8 in)
202218.1 mm (0.7 in)
202328.9 mm (1.1 in)
202439.4 mm (1.6 in)
202524.4 mm (1.0 in)
202645.8 mm (1.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Partoun by year The longest dry spell of the year at Partoun, 1905 to 2026. The record is 116 days in 1953, marked on the chart; the median year is 53 days. 050100150192019401960198020002020Record: 116 days in 1953
The longest dry spell of the year at Partoun, 1905 to 2026. The record is 116 days in 1953, marked on the chart; the median year is 53 days.
Longest dry spell (CDD) at Partoun by year
YearLongest dry spell (CDD)
190554 days
190637 days
190747 days
190813 days
195085 days
195143 days
195287 days
1953116 days
195456 days
1955102 days
195681 days
195765 days
195878 days
195958 days
196040 days
196142 days
196275 days
196346 days
196470 days
196533 days
196646 days
196741 days
196839 days
196953 days
197048 days
197157 days
197255 days
197337 days
197462 days
197530 days
197669 days
197757 days
197880 days
197949 days
198034 days
198149 days
198221 days
198348 days
198430 days
198535 days
198668 days
198748 days
198856 days
198941 days
199037 days
199161 days
199250 days
199344 days
199438 days
199538 days
199658 days
199740 days
199833 days
1999102 days
200081 days
200147 days
200252 days
200351 days
200444 days
200557 days
200661 days
200728 days
200857 days
200970 days
201043 days
201142 days
201268 days
201346 days
201472 days
201552 days
201656 days
201771 days
201862 days
201956 days
202087 days
202171 days
202281 days
202340 days
202474 days
202599 days
202680 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

67 years with a frost

Across 67 years with a frost, the median last spring frost at Partoun falls on 20 May and the median first autumn frost on 22 September, which leaves a median of 125 days between them.

In 1994 to 2025 the median growing season was 133 days. That is 19 days more than in 1906 to 1985.

Fitted over all years, the growing season changes by +3.3 days per decade at this station.

Frost dates and growing season at Partoun
MeasureMedian, all yearsEarliest period (1906 to 1985)Recent period (1994 to 2025)Recent against earliestFitted trend
Last spring frost20 May23 May18 May5 days earlier-1.6 days per decade
First autumn frost22 September21 September28 September7 days later+1.7 days per decade
Growing days125 days114 days133 days19 days more+3.3 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

68 years, 1906 to 2025

A day with at least 20.8 mm (0.8 in) of rain is expected about once in 2 years. A day with at least 50.0 mm (2.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Partoun: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years20.8 mm (0.8 in)
5 years28.6 mm (1.1 in)
10 years33.8 mm (1.3 in)
25 years40.4 mm (1.6 in)
50 years45.2 mm (1.8 in)
100 years50.0 mm (2.0 in)Longer than the 68 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 68 years of values from 1906 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: 50.3 mm (2.0 in) in 1982; 40.6 mm (1.6 in) in 1906; 38.1 mm (1.5 in) in 1965.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Partoun, at 1987. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1987 ran 0.4 C (0.7 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Partoun, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1987-0.4-0.7likely5

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

2009 to 2025 against 1961 to 1990

Over 2009 to 2025, Partoun had a mean temperature of 10.9 C (51.7 F) and 163.6 mm (6.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Wah Wah Rch (United States, 134 km away), Dugway (United States, 103 km away) and Ephrata AP (United States, 966 km away).

Climate twins of Partoun: stations whose 1961 to 1990 climate is closest to its 2009 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
Wah Wah RchUnited States134 km (83 mi)10.6 C (51.0 F)174.2 mm (6.9 in)0.60
DugwayUnited States103 km (64 mi)10.7 C (51.2 F)207.2 mm (8.2 in)0.69
Ephrata APUnited States966 km (600 mi)10.7 C (51.2 F)183.6 mm (7.2 in)0.72

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

Download the Data

  • Data for Partoun standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Partoun 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

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