All-time weather records — Oakley, CA

Record high
117.0°F
June 17, 1961
Record low
18.0°F
December 11, 1972
Wettest day
3.03 in
October 13, 1962

Climate change signal in Oakley

14.2%

of Oakley's all-time daily heat records were set in the last decade (52 of 366 records since 2015).

0.3%

of all-time daily cold records were set in the last decade (1 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 #
1950s
32
91
1960s
56
134
1970s
42
102
1980s
40
24
1990s
39
9
2000s
34
1
2010s
100
5
2020s
23
·

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 1955, the latest in 2021. Period of observation: 1955-2021.

Records by month

Month Hottest day Coldest day Wettest day
January 79.0°F — Jan 26, 2012 19.9°F — Jan 24, 1962 2.80 in — Jan 5, 1982
February 79.0°F — Feb 9, 2011 25.0°F — Feb 6, 1989 2.33 in — Feb 3, 1998
March 88.0°F — Mar 27, 1988 27.0°F — Mar 4, 1966 1.40 in — Mar 3, 2009
April 96.1°F — Apr 27, 2011 28.0°F — Apr 19, 1961 1.47 in — Apr 3, 1958
May 104.0°F — May 6, 2011 32.0°F — May 18, 2011 1.10 in — May 16, 1996
June 117.0°F — Jun 17, 1961 35.1°F — Jun 4, 1982 0.78 in — Jun 9, 1964
July 109.9°F — Jul 11, 1959 41.0°F — Jul 5, 1961 0.40 in — Jul 2, 1980
August 109.0°F — Aug 5, 1998 39.9°F — Aug 5, 1983 0.45 in — Aug 22, 1968
September 109.9°F — Sep 7, 2020 41.0°F — Sep 14, 1980 1.25 in — Sep 19, 1959
October 102.0°F — Oct 5, 1964 28.0°F — Oct 30, 1971 3.03 in — Oct 13, 1962
November 87.1°F — Nov 1, 2011 24.1°F — Nov 17, 1958 2.34 in — Nov 17, 1996
December 75.0°F — Dec 1, 1977 18.0°F — Dec 11, 1972 2.81 in — Dec 11, 2014

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