All-time weather records — Larkspur, CA

Record high
111.9°F
July 11, 1913
Record low
10.0°F
October 31, 1905
Wettest day
11.56 in
January 21, 1967

Climate change signal in Larkspur

13.7%

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

0%

of all-time daily cold records were set in the last decade (0 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
1
16
1910s
24
105
1920s
49
105
1930s
53
66
1940s
18
30
1950s
21
29
1960s
22
5
1970s
22
1
1980s
22
3
1990s
39
5
2000s
30
·
2010s
33
1
2020s
32
·

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 1903, the latest in 2026. Period of observation: 1902-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 79.0°F — Jan 9, 1962 18.0°F — Jan 9, 1937 11.56 in — Jan 21, 1967
February 84.0°F — Feb 14, 1930 21.0°F — Feb 1, 1917 8.66 in — Feb 12, 1904
March 91.0°F — Mar 28, 1923 24.1°F — Mar 1, 1924 4.83 in — Mar 23, 1928
April 97.0°F — Apr 28, 1921 28.9°F — Apr 1, 1936 4.95 in — Apr 7, 1935
May 102.0°F — May 31, 2001 23.0°F — May 23, 1999 4.16 in — May 25, 1906
June 109.9°F — Jun 14, 2000 37.0°F — Jun 10, 1932 1.94 in — Jun 2, 1967
July 111.9°F — Jul 11, 1913 32.0°F — Jul 15, 1911 2.45 in — Jul 8, 1974
August 106.0°F — Aug 1, 1993 37.0°F — Aug 11, 1923 1.23 in — Aug 20, 1997
September 109.9°F — Sep 6, 2022 34.0°F — Sep 27, 1926 3.85 in — Sep 18, 1959
October 102.0°F — Oct 6, 2024 10.0°F — Oct 31, 1905 11.09 in — Oct 24, 2021
November 89.1°F — Nov 17, 1932 25.0°F — Nov 14, 1916 7.96 in — Nov 5, 1994
December 79.0°F — Dec 3, 1927 17.1°F — Dec 31, 1915 8.04 in — Dec 10, 1937

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