All-time weather records — Cypress, CA

Record high
116.1°F
July 6, 2018
Record low
-0.8°F
August 27, 2012
Wettest day
2.76 in
January 22, 2017

Climate change signal in Cypress

43.2%

of Cypress's all-time daily heat records were set in the last decade (158 of 366 records since 2015).

19.1%

of all-time daily cold records were set in the last decade (70 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
13
62
2000s
123
151
2010s
163
114
2020s
67
39

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 93.9°F — Jan 31, 2003 28.2°F — Jan 14, 2007 2.76 in — Jan 22, 2017
February 93.9°F — Feb 15, 2016 35.1°F — Feb 2, 2002 2.50 in — Feb 21, 2005
March 100.0°F — Mar 17, 2026 36.0°F — Mar 12, 2006 2.05 in — Mar 15, 2003
April 102.0°F — Apr 8, 2022 39.0°F — Apr 10, 1999 1.17 in — Apr 4, 2006
May 104.0°F — May 2, 2004 46.0°F — May 1, 1999 0.76 in — May 22, 2006
June 109.0°F — Jun 20, 2016 52.0°F — Jun 5, 1999 0.25 in — Jun 2, 1999
July 116.1°F — Jul 6, 2018 57.9°F — Jul 12, 2001 0.25 in — Jul 19, 2015
August 107.1°F — Aug 18, 2020 -0.8°F — Aug 27, 2012 2.01 in — Aug 20, 2023
September 113.0°F — Sep 6, 2024 54.0°F — Sep 28, 2013 1.31 in — Sep 15, 2015
October 107.1°F — Oct 23, 2017 45.0°F — Oct 29, 2009 1.94 in — Oct 20, 2004
November 99.0°F — Nov 3, 2010 34.0°F — Nov 29, 2010 2.16 in — Nov 15, 2025
December 87.1°F — Dec 9, 2017 -0.8°F — Dec 4, 2010 1.96 in — Dec 24, 2025

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