All-time weather records — Basalt, ID

Record high
108.0°F
June 21, 1900
Record low
-40.0°F
January 21, 1937
Wettest day
3.42 in
January 26, 1984

Climate change signal in Basalt

13.4%

of Basalt's all-time daily heat records were set in the last decade (49 of 366 records since 2015).

2.2%

of all-time daily cold records were set in the last decade (8 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 #
1890s
23
36
1900s
46
58
1910s
26
72
1920s
10
44
1930s
32
43
1940s
32
6
1950s
42
9
1960s
25
21
1970s
13
21
1980s
26
18
1990s
11
20
2000s
20
8
2010s
28
4
2020s
32
6

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 1896, the latest in 2026. Period of observation: 1895-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 60.1°F — Jan 1, 1981 -40.0°F — Jan 21, 1937 3.42 in — Jan 26, 1984
February 81.0°F — Feb 21, 1896 -38.9°F — Feb 9, 1933 1.00 in — Feb 16, 1904
March 79.0°F — Mar 9, 1900 -18.9°F — Mar 12, 1922 2.00 in — Mar 2, 2024
April 88.0°F — Apr 25, 1946 6.1°F — Apr 1, 1936 2.07 in — Apr 18, 2000
May 96.1°F — May 29, 2003 0.0°F — May 1, 2002 1.70 in — May 6, 1993
June 108.0°F — Jun 21, 1900 1.9°F — Jun 18, 1929 3.00 in — Jun 1, 1999
July 104.0°F — Jul 22, 2023 30.0°F — Jul 9, 1912 1.84 in — Jul 30, 1897
August 104.0°F — Aug 14, 1958 7.0°F — Aug 8, 1912 1.67 in — Aug 7, 2014
September 99.0°F — Sep 4, 2022 12.0°F — Sep 25, 1926 1.24 in — Sep 8, 1913
October 88.0°F — Oct 3, 1963 -0.9°F — Oct 30, 2019 1.60 in — Oct 22, 1961
November 73.9°F — Nov 6, 1999 -24.0°F — Nov 27, 1896 1.37 in — Nov 18, 1942
December 69.1°F — Dec 29, 1976 -29.9°F — Dec 19, 1924 1.17 in — Dec 31, 1967

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