All-time weather records — Chula Vista, CA

Record high
109.9°F
July 22, 2006
Record low
-32.8°F
November 4, 2012
Wettest day
2.36 in
February 22, 2004

Climate change signal in Chula Vista

44%

of Chula Vista's all-time daily heat records were set in the last decade (161 of 366 records since 2015).

17.5%

of all-time daily cold records were set in the last decade (64 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
37
94
2000s
123
138
2010s
125
96
2020s
81
38

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 1997, the latest in 2026. Period of observation: 1997-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 90.0°F — Jan 6, 2006 27.1°F — Jan 14, 2007 2.00 in — Jan 22, 2024
February 99.0°F — Feb 28, 2025 32.0°F — Feb 1, 2002 2.36 in — Feb 22, 2004
March 97.0°F — Mar 20, 1997 35.1°F — Mar 1, 1997 1.23 in — Mar 13, 2025
April 99.0°F — Apr 8, 2022 34.0°F — Apr 10, 1999 1.51 in — Apr 10, 2020
May 102.0°F — May 15, 2014 41.0°F — May 1, 1999 1.25 in — May 7, 2017
June 102.9°F — Jun 27, 2006 44.1°F — Jun 3, 2011 0.31 in — Jun 4, 2011
July 109.9°F — Jul 22, 2006 -22.0°F — Jul 31, 1997 0.86 in — Jul 19, 2015
August 104.0°F — Aug 1, 1997 -22.0°F — Aug 1, 1997 1.41 in — Aug 20, 2023
September 108.0°F — Sep 27, 2010 48.0°F — Sep 30, 2019 0.81 in — Sep 15, 2015
October 102.9°F — Oct 24, 2017 37.9°F — Oct 27, 2020 1.56 in — Oct 27, 2004
November 99.0°F — Nov 3, 2010 -32.8°F — Nov 4, 2012 2.17 in — Nov 8, 2022
December 87.1°F — Dec 12, 2010 1.2°F — Dec 28, 2012 1.92 in — Dec 7, 2009

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