All-time weather records — Delano, CA

Record high
109.9°F
July 15, 2021
Record low
21.0°F
December 9, 2013
Wettest day
2.55 in
December 19, 2010

Climate change signal in Delano

63.1%

of Delano's all-time daily heat records were set in the last decade (231 of 366 records since 2015).

50.3%

of all-time daily cold records were set in the last decade (184 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 #
1900s
·
·
1910s
·
·
1940s
·
·
1950s
·
·
1960s
·
·
1970s
·
·
1980s
·
·
1990s
·
·
2000s
·
·
2010s
289
326
2020s
77
40

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 2011, the latest in 2026. Period of observation: 1906-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 75.9°F — Jan 9, 2017 26.1°F — Jan 1, 2015 1.87 in — Jan 20, 1969
February 86.0°F — Feb 7, 2015 28.0°F — Feb 6, 2020 2.04 in — Feb 10, 1978
March 91.0°F — Mar 16, 2015 28.0°F — Mar 8, 2012 1.38 in — Mar 6, 2019
April 96.1°F — Apr 23, 2012 35.1°F — Apr 6, 2012 1.41 in — Apr 6, 1969
May 105.1°F — May 29, 2020 41.0°F — May 2, 2011 1.58 in — May 27, 1971
June 109.0°F — Jun 18, 2012 46.9°F — Jun 2, 2011 1.03 in — Jun 5, 1967
July 109.9°F — Jul 15, 2021 51.1°F — Jul 28, 2018 0.06 in — Jul 23, 2013
August 108.0°F — Aug 29, 2017 57.9°F — Aug 27, 2012 0.40 in — Aug 19, 1983
September 108.0°F — Sep 8, 2022 46.0°F — Sep 30, 2019 1.18 in — Sep 5, 1978
October 100.0°F — Oct 1, 2020 39.9°F — Oct 28, 2022 0.95 in — Oct 16, 2015
November 84.0°F — Nov 4, 2025 30.0°F — Nov 18, 2018 1.58 in — Nov 12, 1944
December 75.0°F — Dec 5, 2014 21.0°F — Dec 9, 2013 2.55 in — Dec 19, 2010

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