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Built 2026-10-19 (19 October 2026)

Cow Creek Wyoming Threshold Days by Year (USR0000WCOW)

9 fixed thresholds counted per year at Cow Creek Wyoming (USR0000WCOW): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cow Creek Wyoming Thresholds

  • Cow Creek Wyoming: days with a maximum temperature at or below 0 C (32 F) in 38 years, most in 2023 with 96.
  • Cow Creek Wyoming: nights with a minimum temperature at or below 0 C (32 F) in 38 years, most in 2011 with 198.
  • Cow Creek Wyoming: nights with a minimum temperature at or below -10 C (14 F) in 38 years, most in 2023 with 69.
  • Cow Creek Wyoming: days with a maximum temperature at or above 30 C (86 F) in 37 years, most in 2007 with 45.
  • 9 fixed thresholds have at least one qualifying day at Cow Creek Wyoming.
37 years with a qualifying day
Days at or above 30 C (86 F) per year at Cow Creek Wyoming Days per year at Cow Creek Wyoming with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 45 in 2007. 02040601989: 141990: 201991: 151992: 31994: 141995: 131996: 151997: 71998: 201999: 92000: 282001: 292002: 392003: 442004: 82005: 202006: 302007: 452008: 172009: 102010: 192011: 132012: 352013: 432014: 192015: 172016: 202017: 242018: 312019: 232020: 392021: 382022: 372023: 202024: 242025: 292026: 361989199419982002200620102014201820222026
Days per year at Cow Creek Wyoming with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 45 in 2007.
Days at or above 30 C (86 F) per year at Cow Creek Wyoming
YearDaysDecade average
19891414
19902012.9
19911512.9
1992312.9
19941412.9
19951312.9
19961512.9
1997712.9
19982012.9
1999912.9
20002827
20012927
20023927
20034427
2004827
20052027
20063027
20074527
20081727
20091027
20101924.4
20111324.4
20123524.4
20134324.4
20141924.4
20151724.4
20162024.4
20172424.4
20183124.4
20192324.4
20203931.9
20213831.9
20223731.9
20232031.9
20242431.9
20252931.9
20263631.9
First to last qualifying date each year at Cow Creek Wyoming For each year, a bar from the first to the last day at Cow Creek Wyoming meeting 30 C (86 F). 1989: 18 June 1989 to 31 July 19891990: 23 June 1990 to 15 September 19901991: 5 July 1991 to 31 August 19911992: 9 August 1992 to 15 August 19921994: 24 June 1994 to 26 August 19941995: 7 July 1995 to 4 September 19951996: 2 July 1996 to 3 September 19961997: 15 July 1997 to 25 August 19971998: 30 June 1998 to 7 September 19981999: 2 July 1999 to 27 July 19992000: 7 June 2000 to 15 August 20002001: 28 June 2001 to 4 September 20012002: 30 May 2002 to 26 August 20022003: 28 May 2003 to 26 August 20032004: 7 June 2004 to 16 August 20042005: 20 June 2005 to 8 August 20052006: 6 June 2006 to 23 August 20062007: 16 June 2007 to 2 September 20072008: 4 July 2008 to 25 August 20082009: 18 July 2009 to 22 August 20092010: 26 May 2010 to 27 August 20102011: 3 July 2011 to 27 August 20112012: 17 June 2012 to 29 August 20122013: 9 June 2013 to 7 September 20132014: 3 July 2014 to 12 August 20142015: 19 June 2015 to 25 August 20152016: 20 June 2016 to 17 August 20162017: 20 June 2017 to 4 September 20172018: 5 June 2018 to 13 August 20182019: 11 July 2019 to 5 September 20192020: 3 July 2020 to 6 September 20202021: 4 June 2021 to 10 September 20212022: 12 June 2022 to 7 September 20222023: 10 July 2023 to 31 August 20232024: 13 June 2024 to 20 August 20242025: 13 June 2025 to 21 August 20252026: 6 June 2026 to 27 August 202619891995200020052010201520202025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Cow Creek Wyoming meeting 30 C (86 F).
First to last qualifying date each year at Cow Creek Wyoming
YearFirst dateLast date
19891989-06-181989-07-31
19901990-06-231990-09-15
19911991-07-051991-08-31
19921992-08-091992-08-15
19941994-06-241994-08-26
19951995-07-071995-09-04
19961996-07-021996-09-03
19971997-07-151997-08-25
19981998-06-301998-09-07
19991999-07-021999-07-27
20002000-06-072000-08-15
20012001-06-282001-09-04
20022002-05-302002-08-26
20032003-05-282003-08-26
20042004-06-072004-08-16
20052005-06-202005-08-08
20062006-06-062006-08-23
20072007-06-162007-09-02
20082008-07-042008-08-25
20092009-07-182009-08-22
20102010-05-262010-08-27
20112011-07-032011-08-27
20122012-06-172012-08-29
20132013-06-092013-09-07
20142014-07-032014-08-12
20152015-06-192015-08-25
20162016-06-202016-08-17
20172017-06-202017-09-04
20182018-06-052018-08-13
20192019-07-112019-09-05
20202020-07-032020-09-06
20212021-06-042021-09-10
20222022-06-122022-09-07
20232023-07-102023-08-31
20242024-06-132024-08-20
20252025-06-132025-08-21
20262026-06-062026-08-27

Every Fixed Threshold

Fixed thresholds at Cow Creek Wyoming
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3745200736
35 C (95 F): Days7320023
90 F (32.2 C): Days3425200319
0 C (32 F): Ice days (max3896202317
0 C (32 F): Frost days (min38198201195
-10 C (14 F): Days with min3869202312
-20 C (-4 F): Days with min331019894
-30 C (-22 F): Days with min2219892
20 C (68 F): Tropical nights (min7320033

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1989.

Download the Data

  • Data for Cow Creek Wyoming 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-17).