All-time weather records — Fairfield, MT

Record high
102.9°F
August 24, 1969
Record low
-44.0°F
February 15, 1936
Wettest day
3.26 in
June 8, 1964

Climate change signal in Fairfield

11.5%

of Fairfield's all-time daily heat records were set in the last decade (42 of 366 records since 2015).

5.5%

of all-time daily cold records were set in the last decade (20 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 #
1920s
2
19
1930s
46
63
1940s
29
36
1950s
26
68
1960s
62
41
1970s
32
39
1980s
49
33
1990s
36
23
2000s
32
20
2010s
26
10
2020s
26
14

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 1928, the latest in 2026. Period of observation: 1927-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 66.0°F — Jan 14, 2026 -38.0°F — Jan 28, 1929 0.79 in — Jan 2, 1955
February 73.9°F — Feb 27, 1992 -44.0°F — Feb 15, 1936 0.98 in — Feb 5, 2024
March 75.9°F — Mar 29, 1978 -32.1°F — Mar 8, 1951 0.87 in — Mar 27, 1961
April 84.9°F — Apr 27, 1987 -11.9°F — Apr 1, 1936 1.51 in — Apr 10, 1996
May 91.0°F — May 29, 1986 10.9°F — May 2, 1954 2.07 in — May 25, 1953
June 97.0°F — Jun 23, 1941 28.0°F — Jun 4, 2001 3.26 in — Jun 8, 1964
July 100.9°F — Jul 4, 1937 35.1°F — Jul 15, 1999 1.85 in — Jul 10, 1983
August 102.9°F — Aug 24, 1969 30.9°F — Aug 21, 1992 2.55 in — Aug 21, 1933
September 97.0°F — Sep 3, 2022 12.9°F — Sep 30, 2019 1.55 in — Sep 20, 1968
October 89.1°F — Oct 1, 1992 -9.0°F — Oct 27, 1991 1.71 in — Oct 2, 1946
November 73.0°F — Nov 3, 1949 -27.9°F — Nov 13, 1959 0.54 in — Nov 25, 1961
December 68.0°F — Dec 2, 2021 -44.0°F — Dec 29, 1968 0.63 in — Dec 2, 1972

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