All-time weather records — Upton, WY

Record high
109.9°F
July 9, 1954
Record low
-45.0°F
January 23, 1915
Wettest day
4.10 in
December 28, 1917

Climate change signal in Upton

21.3%

of Upton's all-time daily heat records were set in the last decade (78 of 366 records since 2015).

7.4%

of all-time daily cold records were set in the last decade (27 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 #
1900s
·
·
1910s
22
43
1920s
30
61
1940s
·
·
1950s
41
37
1960s
19
51
1970s
15
62
1980s
49
42
1990s
44
20
2000s
46
18
2010s
48
16
2020s
52
16

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 1913, the latest in 2026. Period of observation: 1908-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 64.9°F — Jan 30, 1989 -45.0°F — Jan 23, 1915 1.35 in — Jan 16, 1926
February 77.0°F — Feb 22, 1914 -34.1°F — Feb 1, 1917 1.05 in — Feb 12, 1966
March 81.0°F — Mar 31, 2012 -29.0°F — Mar 7, 1920 1.60 in — Mar 18, 2018
April 88.0°F — Apr 22, 1989 -11.0°F — Apr 2, 1975 1.91 in — Apr 19, 1971
May 95.0°F — May 27, 1969 5.0°F — May 3, 1954 1.98 in — May 24, 2008
June 105.1°F — Jun 15, 2021 24.1°F — Jun 24, 1969 2.25 in — Jun 14, 1976
July 109.9°F — Jul 9, 1954 30.0°F — Jul 29, 1971 3.15 in — Jul 21, 1976
August 102.9°F — Aug 21, 2023 24.1°F — Aug 23, 2015 2.32 in — Aug 16, 1957
September 100.9°F — Sep 8, 1958 6.1°F — Sep 25, 1926 2.23 in — Sep 29, 1923
October 91.0°F — Oct 16, 1914 -9.9°F — Oct 26, 2020 2.10 in — Oct 6, 1994
November 84.9°F — Nov 1, 1924 -33.0°F — Nov 30, 1975 4.00 in — Nov 3, 2003
December 66.9°F — Dec 24, 2025 -42.0°F — Dec 24, 1983 4.10 in — Dec 28, 1917

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