All-time weather records — Calistoga, CA

Record high
118.0°F
September 7, 2022
Record low
10.0°F
December 11, 1932
Wettest day
9.14 in
December 31, 1913

Climate change signal in Calistoga

13.7%

of Calistoga's all-time daily heat records were set in the last decade (50 of 366 records since 2015).

3%

of all-time daily cold records were set in the last decade (11 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
17
16
1930s
55
76
1940s
·
·
1950s
·
·
1960s
·
1
1970s
·
1
1980s
81
67
1990s
77
43
2000s
59
93
2010s
44
66
2020s
33
3

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 1917, the latest in 2026. Period of observation: 1906-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 96.1°F — Jan 2, 2005 17.1°F — Jan 17, 2012 5.83 in — Jan 21, 1967
February 88.0°F — Feb 12, 1996 17.1°F — Feb 2, 1999 8.10 in — Feb 17, 1986
March 90.0°F — Mar 23, 2022 19.0°F — Mar 13, 2010 5.63 in — Mar 9, 1995
April 102.0°F — Apr 8, 1989 19.9°F — Apr 4, 2001 2.65 in — Apr 5, 1911
May 104.0°F — May 31, 2001 18.0°F — May 11, 2010 2.30 in — May 10, 2005
June 108.0°F — Jun 19, 1917 28.9°F — Jun 29, 2009 1.99 in — Jun 2, 1967
July 114.1°F — Jul 4, 1931 32.0°F — Jul 11, 2010 1.91 in — Jul 8, 1974
August 111.0°F — Aug 25, 1932 37.9°F — Aug 3, 1982 1.63 in — Aug 28, 1954
September 118.0°F — Sep 7, 2022 32.0°F — Sep 26, 1982 2.99 in — Sep 18, 1959
October 106.0°F — Oct 7, 1996 27.0°F — Oct 15, 2008 5.71 in — Oct 12, 1962
November 96.1°F — Nov 10, 1932 21.0°F — Nov 20, 2000 5.14 in — Nov 21, 1977
December 87.1°F — Dec 17, 1998 10.0°F — Dec 11, 1932 9.14 in — Dec 31, 1913

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