All-time weather records — Cheyenne, WY

Record high
98.1°F
July 16, 2003
Record low
-25.1°F
December 22, 2022
Wettest day
2.33 in
June 8, 2021

Climate change signal in Cheyenne

45.1%

of Cheyenne's all-time daily heat records were set in the last decade (165 of 366 records since 2015).

37.7%

of all-time daily cold records were set in the last decade (138 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 #
2000s
134
139
2010s
151
154
2020s
81
73

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 2003, the latest in 2024. Period of observation: 2003-2025.

Records by month

Month Hottest day Coldest day Wettest day
January 69.1°F — Jan 20, 2005 -24.0°F — Jan 13, 2024 0.49 in — Jan 21, 2018
February 70.0°F — Feb 16, 2017 -24.0°F — Feb 2, 2011 0.63 in — Feb 3, 2024
March 75.0°F — Mar 15, 2015 -15.0°F — Mar 3, 2019 1.95 in — Mar 14, 2021
April 82.0°F — Apr 24, 2012 3.9°F — Apr 10, 2013 1.73 in — Apr 22, 2010
May 91.9°F — May 29, 2003 9.0°F — May 2, 2013 1.65 in — May 18, 2017
June 96.1°F — Jun 28, 2018 30.9°F — Jun 8, 2007 2.33 in — Jun 8, 2021
July 98.1°F — Jul 16, 2003 42.1°F — Jul 1, 2018 2.27 in — Jul 3, 2006
August 97.0°F — Aug 1, 2008 37.0°F — Aug 20, 2016 2.21 in — Aug 15, 2008
September 95.0°F — Sep 2, 2019 26.1°F — Sep 8, 2020 1.45 in — Sep 13, 2013
October 84.0°F — Oct 1, 2011 0.0°F — Oct 26, 2020 1.08 in — Oct 13, 2007
November 73.9°F — Nov 3, 2020 -14.1°F — Nov 12, 2014 0.75 in — Nov 3, 2014
December 71.1°F — Dec 2, 2021 -25.1°F — Dec 22, 2022 0.84 in — Dec 20, 2006

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