All-time weather records — Martinez, CA

Record high
115.0°F
July 14, 1972
Record low
19.0°F
December 9, 2013
Wettest day
4.38 in
January 5, 1982

Climate change signal in Martinez

7.7%

of Martinez's all-time daily heat records were set in the last decade (28 of 366 records since 2015).

14.8%

of all-time daily cold records were set in the last decade (54 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 #
1970s
93
86
1980s
97
46
1990s
61
19
2000s
60
97
2010s
55
118

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 1970, the latest in 2019. Period of observation: 1970-2019.

Records by month

Month Hottest day Coldest day Wettest day
January 73.9°F — Jan 12, 2009 19.9°F — Jan 4, 2009 4.38 in — Jan 5, 1982
February 80.1°F — Feb 22, 1985 25.0°F — Feb 26, 2011 3.22 in — Feb 3, 1998
March 88.0°F — Mar 26, 1988 25.0°F — Mar 5, 2018 2.30 in — Mar 31, 1982
April 98.1°F — Apr 30, 1996 28.9°F — Apr 4, 1999 1.50 in — Apr 13, 2003
May 104.0°F — May 7, 1987 34.0°F — May 12, 1976 1.53 in — May 16, 1996
June 109.9°F — Jun 14, 2000 30.9°F — Jun 30, 1976 1.28 in — Jun 16, 1995
July 115.0°F — Jul 14, 1972 41.0°F — Jul 6, 2009 0.26 in — Jul 8, 1974
August 107.1°F — Aug 1, 1993 42.1°F — Aug 23, 1970 0.65 in — Aug 20, 1997
September 108.0°F — Sep 2, 2017 39.9°F — Sep 15, 2010 0.95 in — Sep 30, 1983
October 102.9°F — Oct 3, 1980 34.0°F — Oct 30, 1971 3.08 in — Oct 14, 2009
November 86.0°F — Nov 1, 1985 24.1°F — Nov 30, 2015 3.78 in — Nov 6, 1994
December 73.9°F — Dec 2, 2011 19.0°F — Dec 9, 2013 3.68 in — Dec 31, 2005

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