All-time weather records — Star Valley Ranch, WY

Record high
98.1°F
August 7, 2001
Record low
-38.0°F
January 1, 1979
Wettest day
1.78 in
March 31, 1983

Climate change signal in Star Valley Ranch

27.9%

of Star Valley Ranch's all-time daily heat records were set in the last decade (102 of 366 records since 2015).

12.6%

of all-time daily cold records were set in the last decade (46 of 366 records since 2015).

If records were spread evenly across the station's history, you'd expect roughly 5% per decade. Decade-by-decade, here's where each record-breaking day was set:

Decade Heat records set # Cold records set #
1970s
41
30
1980s
51
77
1990s
50
81
2000s
92
105
2010s
67
44
2020s
65
29

Records are the all-time daily extremes that are still standing — each daily record can only be held by one year. The station's earliest hot record was set in 1975, the latest in 2025. Period of observation: 1975-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 52.0°F — Jan 11, 2002 -38.0°F — Jan 1, 1979 1.18 in — Jan 9, 2017
February 54.0°F — Feb 17, 1977 -31.0°F — Feb 5, 1989 1.23 in — Feb 19, 1986
March 64.9°F — Mar 7, 1998 -22.0°F — Mar 2, 2002 1.78 in — Mar 31, 1983
April 77.0°F — Apr 24, 2012 -2.0°F — Apr 5, 1983 1.48 in — Apr 8, 2017
May 90.0°F — May 22, 1982 3.0°F — May 26, 2000 1.23 in — May 5, 1993
June 97.0°F — Jun 9, 2001 17.1°F — Jun 16, 2000 1.51 in — Jun 3, 1980
July 97.0°F — Jul 4, 2002 -36.9°F — Jul 22, 2000 1.58 in — Jul 11, 1997
August 98.1°F — Aug 7, 2001 24.1°F — Aug 24, 1992 1.19 in — Aug 29, 2025
September 93.0°F — Sep 4, 2022 6.1°F — Sep 11, 1999 1.47 in — Sep 29, 2019
October 82.0°F — Oct 1, 2010 -11.0°F — Oct 31, 2019 1.64 in — Oct 19, 1979
November 71.1°F — Nov 4, 2020 -18.9°F — Nov 24, 2010 1.05 in — Nov 4, 2017
December 60.1°F — Dec 3, 2021 -36.9°F — Dec 22, 1990 1.78 in — Dec 2, 1977

Click a month to see every daily record for that month in Star Valley Ranch.