All-time weather records — Oceanside, CA

Record high
106.0°F
October 24, 2017
Record low
25.2°F
January 15, 2007
Wettest day
2.97 in
December 21, 2010

Climate change signal in Oceanside

47.5%

of Oceanside's all-time daily heat records were set in the last decade (174 of 366 records since 2015).

29.5%

of all-time daily cold records were set in the last decade (108 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 #
1990s
6
30
2000s
125
141
2010s
150
124
2020s
85
71

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 1999, the latest in 2026. Period of observation: 1999-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 91.9°F — Jan 15, 2021 25.2°F — Jan 15, 2007 2.36 in — Jan 9, 2018
February 91.0°F — Feb 10, 2022 28.2°F — Feb 3, 2011 2.70 in — Feb 5, 2024
March 91.9°F — Mar 13, 2015 29.1°F — Mar 2, 2021 1.66 in — Mar 15, 2023
April 98.1°F — Apr 7, 2022 37.0°F — Apr 1, 2000 2.16 in — Apr 10, 2020
May 99.0°F — May 14, 2014 37.9°F — May 1, 2011 1.08 in — May 7, 2017
June 93.9°F — Jun 9, 2020 45.0°F — Jun 1, 2011 0.17 in — Jun 3, 1999
July 93.9°F — Jul 22, 2006 51.1°F — Jul 3, 2020 0.43 in — Jul 19, 2015
August 93.0°F — Aug 30, 2013 50.0°F — Aug 26, 2009 2.25 in — Aug 20, 2023
September 105.1°F — Sep 27, 2010 45.0°F — Sep 28, 2005 1.14 in — Sep 15, 2015
October 106.0°F — Oct 24, 2017 34.0°F — Oct 29, 2009 2.77 in — Oct 19, 2010
November 98.1°F — Nov 9, 2016 28.2°F — Nov 27, 2010 2.69 in — Nov 30, 2007
December 87.1°F — Dec 10, 2017 25.2°F — Dec 23, 2011 2.97 in — Dec 21, 2010

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