Built 2026-10-15 (15 October 2026)

Willow Creek Weather Records (USS0010G23S)

Record envelope, standing records and threshold days for Willow Creek (USS0010G23S), Wyoming, United States, with 47 years of record.

Key Facts for Willow Creek

  • Willow Creek (USS0010G23S) is a weather station in Wyoming, United States at 42.82 latitude and -110.84 longitude, 2,554 m (8,380 ft) above sea level.
  • The station reports from 1980 to 2026, 47 years of record.
  • 1,464 records set at Willow Creek still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Willow Creek set a daily record high minimum temperature of 7.0 C (44.6 F) on 9 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Wyoming, United States, 42.82 latitude, -110.84 longitude.
  • Elevation: 2,554 m (8,380 ft).
  • Period of record: 1980 to 2026, 47 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

30 days at or beyond a record
Daily record high and record low at Willow Creek, with 2026 drawn through them The band shows the record high and record low for each calendar day at Willow Creek. The lines show the 2026 daily maximum and minimum. 30 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Willow Creek. 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 Willow Creek, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan13.7 C (56.7 F)-29.0 C (-20.2 F)9.5 C (49.1 F)-18.4 C (-1.1 F)
Feb15.5 C (59.9 F)-29.5 C (-21.1 F)13.8 C (56.8 F)-16.3 C (2.7 F)
Mar19.0 C (66.2 F)-22.6 C (-8.7 F)19.0 C (66.2 F)-14.5 C (5.9 F)
Apr21.6 C (70.9 F)-16.8 C (1.8 F)17.9 C (64.2 F)-10.8 C (12.6 F)
May25.4 C (77.7 F)-12.9 C (8.8 F)24.0 C (75.2 F)-5.9 C (21.4 F)
Jun31.1 C (88.0 F)-7.8 C (18.0 F)26.7 C (80.1 F)-2.3 C (27.9 F)
Jul32.7 C (90.9 F)-2.4 C (27.7 F)32.7 C (90.9 F)4.7 C (40.5 F)
Aug32.2 C (90.0 F)-2.1 C (28.2 F)31.9 C (89.4 F)4.7 C (40.5 F)
Sep30.8 C (87.4 F)-10.8 C (12.6 F)23.3 C (73.9 F)0.3 C (32.5 F)
Oct25.8 C (78.4 F)-19.7 C (-3.5 F)25.4 C (77.7 F)4.8 C (40.6 F)
Nov18.4 C (65.1 F)-26.2 C (-15.2 F)n/an/a
Dec13.4 C (56.1 F)-33.5 C (-28.3 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Willow Creek by the year they were set 1,464 records at Willow Creek still stand. 1985 holds the most, with 61. 0204060801983: 191984: 371985: 611986: 291987: 521988: 271989: 311990: 421991: 211992: 191993: 501994: 341995: 341996: 421997: 211998: 181999: 342000: 252001: 292002: 272003: 452004: 262005: 252006: 282007: 282008: 302009: 322010: 302011: 222012: 362013: 322014: 312015: 382016: 372017: 352018: 242019: 232020: 412021: 412022: 452023: 262024: 372025: 532026: 47198319881993199820032008201320182023
1,464 records at Willow Creek still stand. 1985 holds the most, with 61.
Standing records at Willow Creek by the year they were set
Year setStanding records
198319
198437
198561
198629
198752
198827
198931
199042
199121
199219
199350
199434
199534
199642
199721
199818
199934
200025
200129
200227
200345
200426
200525
200628
200728
200830
200932
201030
201122
201236
201332
201431
201538
201637
201735
201824
201923
202041
202141
202245
202326
202437
202553
202647

All-Time Record Progression

4 new records
When Willow Creek set new all-time records 4 all-time records were set at Willow Creek between 10 August 2018 and 20 July 2026. Each dot is a new record. Record high maximum temperature10 August 2018: Record high maximum temperature 31.6 C (88.9 F)11 August 2018: Record high maximum temperature 32.2 C (90.0 F)18 July 2021: Record high maximum temperature 32.6 C (90.7 F)20 July 2026: Record high maximum temperature 32.7 C (90.9 F)20202025
4 all-time records were set at Willow Creek between 10 August 2018 and 20 July 2026. Each dot is a new record.
When Willow Creek set new all-time records
DateKindDetail
2018-08-10Record high maximum temperatureRecord high maximum temperature 31.6 C (88.9 F)
2018-08-11Record high maximum temperatureRecord high maximum temperature 32.2 C (90.0 F)
2021-07-18Record high maximum temperatureRecord high maximum temperature 32.6 C (90.7 F)
2026-07-20Record high maximum temperatureRecord high maximum temperature 32.7 C (90.9 F)

Wettest Day of Each Month

Mar: 91.4 mm (3.6 in)
Record daily precipitation for each month at Willow Creek The wettest day on record for each calendar month at Willow Creek. The most was 91.4 mm (3.6 in) on 28 March 1982. 0255075100 Jan: 61.0 mm (2.4 in), 16 January 1982 Jan Feb: 63.5 mm (2.5 in), 7 February 2020 Feb Mar: 91.4 mm (3.6 in), 28 March 1982 Mar Apr: 63.5 mm (2.5 in), 23 April 1982 Apr May: 43.2 mm (1.7 in), 15 May 2001 May Jun: 48.3 mm (1.9 in), 10 June 2004 Jun Jul: 35.6 mm (1.4 in), 3 July 1995 Jul Aug: 33.0 mm (1.3 in), 1 August 2011 Aug Sep: 53.3 mm (2.1 in), 29 September 2019 Sep Oct: 63.5 mm (2.5 in), 20 October 2007 Oct Nov: 53.3 mm (2.1 in), 7 November 1985 Nov Dec: 55.9 mm (2.2 in), 6 December 1983 Dec
The wettest day on record for each calendar month at Willow Creek. The most was 91.4 mm (3.6 in) on 28 March 1982.
Record daily precipitation for each month at Willow Creek
MonthRecord daily precipitation (mm)Date
Jan61.0 mm (2.4 in)16 January 1982
Feb63.5 mm (2.5 in)7 February 2020
Mar91.4 mm (3.6 in)28 March 1982
Apr63.5 mm (2.5 in)23 April 1982
May43.2 mm (1.7 in)15 May 2001
Jun48.3 mm (1.9 in)10 June 2004
Jul35.6 mm (1.4 in)3 July 1995
Aug33.0 mm (1.3 in)1 August 2011
Sep53.3 mm (2.1 in)29 September 2019
Oct63.5 mm (2.5 in)20 October 2007
Nov53.3 mm (2.1 in)7 November 1985
Dec55.9 mm (2.2 in)6 December 1983

Period of Record Coverage

1983 to 2026
Days with data per year at Willow Creek 44 years of record at Willow Creek, 1983 to 2026. 4 years have data for under 90 percent of days and are left out of rankings: 1983, 1986, 1988, 2026. 1983: 182 of 365 days1984: 344 of 366 days1985: 340 of 365 days1986: 318 of 365 days1987: 358 of 365 days1988: 307 of 366 days1989: 362 of 365 days1990: 365 of 365 days1991: 362 of 365 days1992: 361 of 366 days1993: 350 of 365 days1994: 355 of 365 days1995: 364 of 365 days1996: 366 of 366 days1997: 364 of 365 days1998: 364 of 365 days1999: 364 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 364 of 365 days2003: 364 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 364 of 365 days2023: 365 of 365 days2024: 365 of 366 days2025: 365 of 365 days2026: 282 of 365 days1990200020102020
44 years of record at Willow Creek, 1983 to 2026. 4 years have data for under 90 percent of days and are left out of rankings: 1983, 1986, 1988, 2026.
Days with data per year at Willow Creek
YearDays with dataShare of yearComplete
198318250%No
198434494%Yes
198534093%Yes
198631887%No
198735898%Yes
198830784%No
198936299%Yes
1990365100%Yes
199136299%Yes
199236199%Yes
199335096%Yes
199435597%Yes
1995364100%Yes
1996366100%Yes
1997364100%Yes
1998364100%Yes
1999364100%Yes
2000366100%Yes
2001365100%Yes
2002364100%Yes
2003364100%Yes
2004366100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022364100%Yes
2023365100%Yes
2024365100%Yes
2025365100%Yes
202628277%No

Latest Records

20
Latest records at Willow Creek
DateStationRecordValueBeat old record byOld record stoodSignificance
9 October 2026Willow Creek, USdaily high min (Provisional)7.0 C (44.6 F)0.1 C (0.2 F)23 years10 of 100 (Routine)
8 October 2026Willow Creek, USdaily high min (Provisional)7.3 C (45.1 F)1.3 C (2.3 F)5 years7 of 100 (Routine)
6 October 2026Willow Creek, USdaily high max (Provisional)24.7 C (76.5 F)3.4 C (6.1 F)5 years10 of 100 (Routine)
6 October 2026Willow Creek, USdaily high min (Provisional)7.2 C (45.0 F)1.3 C (2.3 F)16 years10 of 100 (Routine)
5 October 2026Willow Creek, USdaily high min (Provisional)8.8 C (47.8 F)1.5 C (2.7 F)32 years16 of 100 (Routine)
5 October 2026Willow Creek, USdaily high max (Provisional)25.4 C (77.7 F)5.1 C (9.2 F)4 years13 of 100 (Routine)
4 October 2026Willow Creek, USdaily high max (Provisional)24.8 C (76.6 F)1.4 C (2.5 F)1 year6 of 100 (Routine)
4 October 2026Willow Creek, USdaily high min (Provisional)6.7 C (44.1 F)1.1 C (2.0 F)1 year6 of 100 (Routine)
3 October 2026Willow Creek, USdaily high max (Provisional)25.1 C (77.2 F)0.7 C (1.3 F)16 years9 of 100 (Routine)
29 August 2026Willow Creek, USdaily rain (Provisional)22.9 mm (0.9 in)12.7 mm (0.5 in)23 years20 of 100 (Routine)
28 August 2026Willow Creek, USdaily rain (Provisional)10.2 mm (0.4 in)2.6 mm (0.10 in)44 years20 of 100 (Routine)
21 August 2026Willow Creek, USdaily high max (Provisional)29.8 C (85.6 F)0.5 C (0.9 F)7 years7 of 100 (Routine)
14 August 2026Willow Creek, USdaily low max14.3 C (57.7 F)2.3 C (4.1 F)8 years11 of 100 (Routine)
13 August 2026Willow Creek, USdaily low max13.2 C (55.8 F)4.0 C (7.2 F)40 years26 of 100 (Routine)
12 August 2026Willow Creek, USdaily rain20.3 mm (0.8 in)10.1 mm (0.4 in)36 years20 of 100 (Routine)
7 August 2026Willow Creek, USdaily high max30.5 C (86.9 F)1.4 C (2.5 F)13 years11 of 100 (Routine)
1 August 2026Willow Creek, USdaily high max31.9 C (89.4 F)0.7 C (1.3 F)5 years6 of 100 (Routine)
28 July 2026Willow Creek, USdaily high max30.1 C (86.2 F)0.2 C (0.4 F)4 years5 of 100 (Routine)
26 July 2026Willow Creek, USdaily high max30.7 C (87.3 F)0.7 C (1.3 F)4 years6 of 100 (Routine)
25 July 2026Willow Creek, USdaily high min14.3 C (57.7 F)1.8 C (3.2 F)39 years21 of 100 (Routine)

Climate Trend

40 complete years, 1984 to 2025
Annual mean temperature at Willow Creek as warming stripes, 1984 to 2025 One stripe for each of 40 complete years at Willow Creek, 1984 to 2025. Blue stripes are years cooler than the station's own mean of 3.9 C (39.0 F); red stripes are warmer. The coolest year was 1993, at 1.4 C (34.5 F), and the warmest was 2025, at 5.8 C (42.4 F). The strongest colour marks a difference of 2.5 C (4.5 F). 1984: 1.5 C, -2.4 C from the station mean1985: 2.0 C, -1.9 C from the station mean1987: 3.7 C, -0.2 C from the station mean1989: 2.9 C, -1.0 C from the station mean1990: 2.6 C, -1.3 C from the station mean1991: 2.7 C, -1.2 C from the station mean1992: 3.5 C, -0.4 C from the station mean1993: 1.4 C, -2.5 C from the station mean1994: 3.4 C, -0.5 C from the station mean1995: 2.9 C, -1.0 C from the station mean1996: 2.8 C, -1.1 C from the station mean1997: 2.6 C, -1.3 C from the station mean1998: 3.0 C, -0.9 C from the station mean1999: 3.7 C, -0.2 C from the station mean2000: 4.3 C, +0.4 C from the station mean2001: 4.8 C, +0.9 C from the station mean2002: 3.7 C, -0.2 C from the station mean2003: 4.6 C, +0.7 C from the station mean2004: 4.2 C, +0.3 C from the station mean2005: 4.4 C, +0.5 C from the station mean2006: 4.3 C, +0.4 C from the station mean2007: 4.8 C, +0.9 C from the station mean2008: 3.4 C, -0.5 C from the station mean2009: 3.6 C, -0.3 C from the station mean2010: 3.9 C, 0.0 C from the station mean2011: 3.4 C, -0.5 C from the station mean2012: 5.3 C, +1.4 C from the station mean2013: 4.3 C, +0.4 C from the station mean2014: 4.5 C, +0.6 C from the station mean2015: 5.5 C, +1.6 C from the station mean2016: 5.2 C, +1.3 C from the station mean2017: 4.8 C, +0.9 C from the station mean2018: 4.7 C, +0.8 C from the station mean2019: 3.9 C, 0.0 C from the station mean2020: 4.7 C, +0.8 C from the station mean2021: 5.2 C, +1.3 C from the station mean2022: 4.4 C, +0.5 C from the station mean2023: 4.5 C, +0.6 C from the station mean2024: 5.4 C, +1.5 C from the station mean2025: 5.8 C, +1.9 C from the station mean198419901995200020052010201520202025
One stripe for each of 40 complete years at Willow Creek, 1984 to 2025. Blue stripes are years cooler than the station's own mean of 3.9 C (39.0 F); red stripes are warmer. The coolest year was 1993, at 1.4 C (34.5 F), and the warmest was 2025, at 5.8 C (42.4 F). The strongest colour marks a difference of 2.5 C (4.5 F).
Annual mean temperature at Willow Creek as warming stripes, 1984 to 2025
YearAnnual mean temperatureDifference from the station mean
19841.5 C-2.42 C
19852.0 C-1.94 C
19873.7 C-0.23 C
19892.9 C-1.05 C
19902.6 C-1.32 C
19912.7 C-1.25 C
19923.5 C-0.36 C
19931.4 C-2.49 C
19943.4 C-0.47 C
19952.9 C-1.05 C
19962.8 C-1.09 C
19972.6 C-1.30 C
19983.0 C-0.91 C
19993.7 C-0.24 C
20004.3 C+0.43 C
20014.8 C+0.87 C
20023.7 C-0.16 C
20034.6 C+0.72 C
20044.2 C+0.26 C
20054.4 C+0.45 C
20064.3 C+0.35 C
20074.8 C+0.86 C
20083.4 C-0.52 C
20093.6 C-0.30 C
20103.9 C-0.04 C
20113.4 C-0.49 C
20125.3 C+1.43 C
20134.3 C+0.35 C
20144.5 C+0.61 C
20155.5 C+1.63 C
20165.2 C+1.29 C
20174.8 C+0.94 C
20184.7 C+0.84 C
20193.9 C-0.02 C
20204.7 C+0.76 C
20215.2 C+1.28 C
20224.4 C+0.50 C
20234.5 C+0.64 C
20245.4 C+1.54 C
20255.8 C+1.87 C

The annual mean temperature here has risen by 0.7 C (0.6 to 0.9) per decade over 1984 to 2025. In Fahrenheit: 1.3 F (1.0 to 1.6) per decade. The slope is a straight line fitted to 40 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Willow Creek
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.7 C (0.6 to 0.9) per decade1.3 F (1.0 to 1.6) per decade1984 to 202540Rise
Mean daily maximum0.9 C (0.7 to 1.1) per decade1.6 F (1.2 to 1.9) per decade1984 to 202540Rise
Mean daily minimum0.6 C (0.4 to 0.8) per decade1.1 F (0.7 to 1.4) per decade1984 to 202540Rise

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

1980 to 2026
Yearly extremes at Willow Creek: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)32.7 C (90.9 F)202629.6 C (85.2 F)44
Coldest night (TNn)-33.5 C (-28.3 F)1990-23.5 C (-10.4 F)44
Wettest day (Rx1day)91.4 mm (3.6 in)198243.2 mm (1.7 in)47
Wettest five days (Rx5day)180.2 mm (7.1 in)198696.5 mm (3.8 in)47
Longest dry spell (CDD)38 days198420 days47

Hottest day (TXx)

Hottest day (TXx) at Willow Creek by year The hottest day of the year at Willow Creek, 1980 to 2026. The record is 32.7 C (90.9 F) in 2026, marked on the chart; the median year is 29.6 C (85.2 F). 22.52527.53032.53519801990200020102020Record: 32.7 C (90.9 F) in 2026
The hottest day of the year at Willow Creek, 1980 to 2026. The record is 32.7 C (90.9 F) in 2026, marked on the chart; the median year is 29.6 C (85.2 F).
Hottest day (TXx) at Willow Creek by year
YearHottest day (TXx)
1980n/a
1981n/a
1982n/a
198328.1 C (82.6 F)
198426.9 C (80.4 F)
198528.6 C (83.5 F)
198628.6 C (83.5 F)
198726.3 C (79.3 F)
198828.4 C (83.1 F)
198928.5 C (83.3 F)
199028.5 C (83.3 F)
199126.7 C (80.1 F)
199228.3 C (82.9 F)
199324.6 C (76.3 F)
199428.9 C (84.0 F)
199527.3 C (81.1 F)
199628.2 C (82.8 F)
199727.2 C (81.0 F)
199829.6 C (85.3 F)
199928.4 C (83.1 F)
200030.8 C (87.4 F)
200129.6 C (85.3 F)
200231.3 C (88.3 F)
200331.0 C (87.8 F)
200426.8 C (80.2 F)
200530.3 C (86.5 F)
200630.1 C (86.2 F)
200730.7 C (87.3 F)
200828.1 C (82.6 F)
200928.9 C (84.0 F)
201029.4 C (84.9 F)
201128.0 C (82.4 F)
201230.5 C (86.9 F)
201330.5 C (86.9 F)
201429.5 C (85.1 F)
201531.1 C (88.0 F)
201629.8 C (85.6 F)
201731.0 C (87.8 F)
201832.2 C (90.0 F)
201930.0 C (86.0 F)
202031.8 C (89.2 F)
202132.6 C (90.7 F)
202230.9 C (87.6 F)
202330.4 C (86.7 F)
202431.5 C (88.7 F)
202530.5 C (86.9 F)
202632.7 C (90.9 F)

Coldest night (TNn)

Coldest night (TNn) at Willow Creek by year The coldest night of the year at Willow Creek, 1980 to 2026. The record is -33.5 C (-28.3 F) in 1990, marked on the chart; the median year is -23.5 C (-10.4 F). -35-30-25-20-1519801990200020102020Record: -33.5 C (-28.3 F) in 1990
The coldest night of the year at Willow Creek, 1980 to 2026. The record is -33.5 C (-28.3 F) in 1990, marked on the chart; the median year is -23.5 C (-10.4 F).
Coldest night (TNn) at Willow Creek by year
YearColdest night (TNn)
1980n/a
1981n/a
1982n/a
1983-29.0 C (-20.2 F)
1984-29.0 C (-20.2 F)
1985-29.5 C (-21.1 F)
1986-22.0 C (-7.6 F)
1987-22.8 C (-9.0 F)
1988-22.2 C (-8.0 F)
1989-28.1 C (-18.6 F)
1990-33.5 C (-28.3 F)
1991-24.7 C (-12.5 F)
1992-21.5 C (-6.7 F)
1993-26.2 C (-15.2 F)
1994-23.4 C (-10.1 F)
1995-21.4 C (-6.5 F)
1996-25.6 C (-14.1 F)
1997-24.1 C (-11.4 F)
1998-27.8 C (-18.0 F)
1999-19.6 C (-3.3 F)
2000-17.1 C (1.2 F)
2001-21.5 C (-6.7 F)
2002-23.7 C (-10.7 F)
2003-21.2 C (-6.2 F)
2004-24.1 C (-11.4 F)
2005-24.2 C (-11.6 F)
2006-21.1 C (-6.0 F)
2007-24.0 C (-11.2 F)
2008-21.5 C (-6.7 F)
2009-25.2 C (-13.4 F)
2010-25.8 C (-14.4 F)
2011-25.9 C (-14.6 F)
2012-20.3 C (-4.5 F)
2013-27.1 C (-16.8 F)
2014-23.0 C (-9.4 F)
2015-21.0 C (-5.8 F)
2016-24.1 C (-11.4 F)
2017-22.9 C (-9.2 F)
2018-21.2 C (-6.2 F)
2019-21.0 C (-5.8 F)
2020-20.7 C (-5.3 F)
2021-18.1 C (-0.6 F)
2022-25.8 C (-14.4 F)
2023-24.5 C (-12.1 F)
2024-22.8 C (-9.0 F)
2025-27.0 C (-16.6 F)
2026-18.4 C (-1.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Willow Creek by year The wettest day of the year at Willow Creek, 1980 to 2026. The record is 91.4 mm (3.6 in) in 1982, marked on the chart; the median year is 43.2 mm (1.7 in). 2040608010019801990200020102020Record: 91.4 mm (3.6 in) in 1982
The wettest day of the year at Willow Creek, 1980 to 2026. The record is 91.4 mm (3.6 in) in 1982, marked on the chart; the median year is 43.2 mm (1.7 in).
Wettest day (Rx1day) at Willow Creek by year
YearWettest day (Rx1day)
198025.4 mm (1.0 in)
198145.7 mm (1.8 in)
198291.4 mm (3.6 in)
198355.9 mm (2.2 in)
198440.6 mm (1.6 in)
198553.3 mm (2.1 in)
198655.9 mm (2.2 in)
198727.9 mm (1.1 in)
198840.6 mm (1.6 in)
198943.2 mm (1.7 in)
199033.0 mm (1.3 in)
199135.6 mm (1.4 in)
199238.1 mm (1.5 in)
199345.7 mm (1.8 in)
199443.2 mm (1.7 in)
199553.3 mm (2.1 in)
199638.1 mm (1.5 in)
199745.7 mm (1.8 in)
199843.2 mm (1.7 in)
199927.9 mm (1.1 in)
200033.0 mm (1.3 in)
200143.2 mm (1.7 in)
200245.7 mm (1.8 in)
200338.1 mm (1.5 in)
200448.3 mm (1.9 in)
200533.0 mm (1.3 in)
200655.9 mm (2.2 in)
200763.5 mm (2.5 in)
200835.6 mm (1.4 in)
200945.7 mm (1.8 in)
201053.3 mm (2.1 in)
201135.6 mm (1.4 in)
201243.2 mm (1.7 in)
201335.6 mm (1.4 in)
201450.8 mm (2.0 in)
201535.6 mm (1.4 in)
201653.3 mm (2.1 in)
201750.8 mm (2.0 in)
201835.6 mm (1.4 in)
201953.3 mm (2.1 in)
202063.5 mm (2.5 in)
202145.7 mm (1.8 in)
202243.2 mm (1.7 in)
202345.7 mm (1.8 in)
202440.6 mm (1.6 in)
202533.0 mm (1.3 in)
202635.6 mm (1.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Willow Creek by year The wettest five days of the year at Willow Creek, 1980 to 2026. The record is 180.2 mm (7.1 in) in 1986, marked on the chart; the median year is 96.5 mm (3.8 in). 5010015020019801990200020102020Record: 180.2 mm (7.1 in) in 1986
The wettest five days of the year at Willow Creek, 1980 to 2026. The record is 180.2 mm (7.1 in) in 1986, marked on the chart; the median year is 96.5 mm (3.8 in).
Wettest five days (Rx5day) at Willow Creek by year
YearWettest five days (Rx5day)
198068.6 mm (2.7 in)
1981101.6 mm (4.0 in)
1982124.4 mm (4.9 in)
1983101.6 mm (4.0 in)
1984104.0 mm (4.1 in)
198596.5 mm (3.8 in)
1986180.2 mm (7.1 in)
198768.6 mm (2.7 in)
198878.8 mm (3.1 in)
198999.0 mm (3.9 in)
199073.6 mm (2.9 in)
199178.8 mm (3.1 in)
199268.6 mm (2.7 in)
1993114.3 mm (4.5 in)
199494.1 mm (3.7 in)
1995101.7 mm (4.0 in)
1996134.6 mm (5.3 in)
1997119.3 mm (4.7 in)
1998116.8 mm (4.6 in)
199986.5 mm (3.4 in)
2000101.6 mm (4.0 in)
200181.3 mm (3.2 in)
200278.7 mm (3.1 in)
200381.4 mm (3.2 in)
200488.9 mm (3.5 in)
200596.4 mm (3.8 in)
2006101.5 mm (4.0 in)
2007111.8 mm (4.4 in)
200883.9 mm (3.3 in)
200991.5 mm (3.6 in)
201096.5 mm (3.8 in)
201194.0 mm (3.7 in)
2012142.2 mm (5.6 in)
201376.2 mm (3.0 in)
2014106.7 mm (4.2 in)
201583.8 mm (3.3 in)
2016109.2 mm (4.3 in)
2017139.8 mm (5.5 in)
201881.4 mm (3.2 in)
201988.8 mm (3.5 in)
2020127.0 mm (5.0 in)
202199.1 mm (3.9 in)
2022104.2 mm (4.1 in)
202366.0 mm (2.6 in)
202488.9 mm (3.5 in)
2025101.5 mm (4.0 in)
202671.2 mm (2.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Willow Creek by year The longest dry spell of the year at Willow Creek, 1980 to 2026. The record is 38 days in 1984, marked on the chart; the median year is 20 days. 1020304019801990200020102020Record: 38 days in 1984
The longest dry spell of the year at Willow Creek, 1980 to 2026. The record is 38 days in 1984, marked on the chart; the median year is 20 days.
Longest dry spell (CDD) at Willow Creek by year
YearLongest dry spell (CDD)
198014 days
198136 days
198217 days
198334 days
198438 days
198519 days
198623 days
198730 days
198829 days
198925 days
199016 days
199123 days
199220 days
199317 days
199425 days
199516 days
199624 days
199714 days
199815 days
199918 days
200015 days
200122 days
200237 days
200314 days
200420 days
200516 days
200613 days
200724 days
200835 days
200917 days
201028 days
201115 days
201219 days
201324 days
201418 days
201519 days
201619 days
201729 days
201829 days
201932 days
202029 days
202122 days
202219 days
202319 days
202429 days
202528 days
202614 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

40 years with a frost

Across 40 years with a frost, the median last spring frost at Willow Creek falls on 15 June and the median first autumn frost on 16 September, which leaves a median of 98 days between them.

Fitted over all years, the growing season changes by +13.2 days per decade at this station.

Frost dates and growing season at Willow Creek
MeasureMedian, all yearsEarliest periodRecent period (1996 to 2025)Recent against earliestFitted trend
Last spring frost15 Junen/a13 Junen/a-2.6 days per decade
First autumn frost16 Septembern/a19 Septembern/a+10.6 days per decade
Growing days98 daysn/a103 daysn/a+13.2 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

44 years, 1982 to 2025

A day with at least 42.9 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 80.1 mm (3.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Willow Creek: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years42.9 mm (1.7 in)
5 years52.6 mm (2.1 in)
10 years59.2 mm (2.3 in)
25 years67.5 mm (2.7 in)
50 years73.8 mm (2.9 in)Longer than the 44 years of record
100 years80.1 mm (3.2 in)Longer than the 44 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, 44 years of values from 1982 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: 91.4 mm (3.6 in) in 1982; 63.5 mm (2.5 in) in 2007; 63.5 mm (2.5 in) in 2020.

Station Changes

2 suspected

2 changes were suspected in the annual mean temperature of Willow Creek, at 2000 and 2017. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 2000 ran 0.6 C (1.0 F) higher than in the years before (likely change).
  • Relative to 5 neighbouring stations, the station's annual mean temperature from 2017 ran 0.3 C (0.5 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Willow Creek, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
2000+0.6+1.0likely5
2017+0.3+0.5possible5

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.

Download the Data

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