All-time weather records — Mona, UT

Record high
109.9°F
June 26, 1970
Record low
-20.9°F
December 23, 1990
Wettest day
1.85 in
July 21, 1943

Climate change signal in Mona

10.1%

of Mona's all-time daily heat records were set in the last decade (37 of 366 records since 2015).

4.1%

of all-time daily cold records were set in the last decade (15 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
·
·
1940s
39
38
1950s
118
43
1960s
34
58
1970s
21
50
1980s
60
66
1990s
38
47
2000s
16
40
2010s
8
20
2020s
32
4

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 1943, the latest in 2026. Period of observation: 1904-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 68.0°F — Jan 13, 1953 -18.0°F — Jan 29, 1949 1.12 in — Jan 3, 1997
February 75.0°F — Mar 1, 1992 -20.0°F — Feb 6, 1989 1.31 in — Feb 12, 2012
March 88.0°F — Mar 25, 2026 0.0°F — Mar 1, 2002 1.53 in — Mar 21, 1944
April 91.0°F — Apr 25, 1987 14.0°F — Apr 3, 1945 1.40 in — Apr 2, 1986
May 98.1°F — May 31, 2002 14.0°F — May 2, 2002 1.48 in — May 3, 1999
June 109.9°F — Jun 26, 1970 28.0°F — Jun 14, 1976 1.82 in — Jun 1, 1943
July 106.0°F — Jul 8, 1989 37.9°F — Jul 2, 1992 1.85 in — Jul 21, 1943
August 109.0°F — Aug 8, 1958 35.1°F — Aug 31, 1943 1.36 in — Aug 18, 1965
September 106.0°F — Sep 4, 1950 23.0°F — Sep 18, 1965 1.50 in — Sep 18, 1978
October 93.0°F — Oct 13, 1989 7.0°F — Oct 30, 2019 1.75 in — Oct 20, 1979
November 79.0°F — Nov 3, 1953 -4.0°F — Nov 16, 1955 1.24 in — Nov 22, 1996
December 79.0°F — Dec 21, 1983 -20.9°F — Dec 23, 1990 1.45 in — Dec 30, 1951

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