All-time weather records — Hawthorne, CA

Record high
122.0°F
July 21, 1999
Record low
32.0°F
June 11, 2002
Wettest day
3.81 in
December 28, 2004

Climate change signal in Hawthorne

41.3%

of Hawthorne's all-time daily heat records were set in the last decade (151 of 366 records since 2015).

13.4%

of all-time daily cold records were set in the last decade (49 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
18
66
2000s
135
173
2010s
148
99
2020s
65
28

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 1998, the latest in 2026. Period of observation: 1998-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 91.0°F — Jan 31, 2003 33.1°F — Jan 15, 2021 2.72 in — Jan 22, 2017
February 91.0°F — Feb 16, 2016 37.9°F — Feb 11, 1999 2.71 in — Feb 12, 2003
March 95.0°F — Mar 17, 2026 41.0°F — Mar 12, 2006 2.66 in — Mar 15, 2003
April 100.9°F — Apr 27, 2008 39.0°F — Apr 30, 2017 1.66 in — Apr 11, 1999
May 99.0°F — May 15, 2014 50.0°F — May 8, 2017 0.78 in — May 2, 2003
June 97.0°F — Jun 20, 2016 32.0°F — Jun 11, 2002 0.12 in — Jun 2, 1999
July 122.0°F — Jul 21, 1999 34.0°F — Jul 19, 2000 0.32 in — Jul 18, 2015
August 93.9°F — Aug 8, 2018 57.9°F — Aug 12, 2009 1.89 in — Aug 20, 2023
September 111.0°F — Sep 27, 2010 57.0°F — Sep 4, 2010 1.59 in — Sep 15, 2015
October 106.0°F — Oct 24, 2017 50.0°F — Oct 30, 2000 1.33 in — Oct 20, 2004
November 100.9°F — Nov 3, 2010 41.0°F — Nov 29, 2004 1.55 in — Nov 8, 2022
December 87.1°F — Dec 12, 2010 37.0°F — Dec 10, 2001 3.81 in — Dec 28, 2004

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