All-time weather records — Riverside, WY

Record high
122.0°F
June 30, 1990
Record low
-36.9°F
February 5, 1989
Wettest day
3.50 in
December 15, 1983

Climate change signal in Riverside

16.9%

of Riverside's all-time daily heat records were set in the last decade (62 of 366 records since 2015).

20.2%

of all-time daily cold records were set in the last decade (74 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
·
·
1980s
27
63
1990s
85
96
2000s
133
81
2010s
79
75
2020s
42
51

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 1988, the latest in 2026. Period of observation: 1978-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 52.5°F — Jan 20, 2009 -23.3°F — Jan 31, 2023 2.20 in — Jan 11, 2017
February 53.6°F — Feb 6, 2007 -36.9°F — Feb 5, 1989 2.10 in — Feb 24, 1986
March 64.0°F — Mar 12, 2007 -18.8°F — Mar 4, 1989 1.60 in — Mar 2, 2015
April 70.0°F — Apr 29, 2007 -9.6°F — Apr 10, 1989 2.00 in — Apr 18, 2015
May 79.2°F — May 31, 2002 1.0°F — May 2, 2013 2.50 in — May 8, 1995
June 122.0°F — Jun 30, 1990 -23.4°F — Jun 28, 1991 1.30 in — Jun 11, 1990
July 122.0°F — Jul 1, 1990 29.5°F — Jul 13, 1997 1.20 in — Jul 25, 2006
August 86.0°F — Aug 9, 2012 27.3°F — Aug 26, 1992 1.30 in — Aug 9, 2008
September 82.4°F — Sep 5, 2020 8.6°F — Sep 27, 1996 1.90 in — Sep 1, 2005
October 72.3°F — Oct 3, 2010 -10.3°F — Oct 29, 2019 1.80 in — Oct 3, 1981
November 61.2°F — Nov 20, 1989 -18.6°F — Nov 25, 1993 1.60 in — Nov 22, 1996
December 48.4°F — Dec 2, 2021 -25.4°F — Dec 21, 1990 3.50 in — Dec 15, 1983

Click a month to see every daily record for that month in Riverside.