All-time weather records — Lancaster, CA

Record high
115.0°F
June 30, 2013
Record low
1.9°F
December 24, 1984
Wettest day
3.59 in
August 20, 2023

Climate change signal in Lancaster

35.8%

of Lancaster's all-time daily heat records were set in the last decade (131 of 366 records since 2015).

11.7%

of all-time daily cold records were set in the last decade (43 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 #
1970s
22
54
1980s
45
80
1990s
28
67
2000s
101
77
2010s
84
67
2020s
86
21

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 1974, the latest in 2026. Period of observation: 1974-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 78.1°F — Jan 31, 2003 3.0°F — Jan 14, 2007 1.60 in — Jan 13, 1993
February 84.0°F — Feb 13, 2014 10.9°F — Feb 4, 1979 2.75 in — Feb 16, 1980
March 95.0°F — Mar 20, 2026 17.1°F — Mar 4, 2002 2.93 in — Mar 1, 1983
April 96.1°F — Apr 7, 1989 24.1°F — Apr 5, 2009 1.63 in — Apr 17, 2000
May 106.0°F — May 28, 2003 32.0°F — May 1, 2011 1.01 in — May 8, 1977
June 115.0°F — Jun 30, 2013 39.9°F — Jun 7, 1988 0.83 in — Jun 5, 1993
July 115.0°F — Jul 7, 2024 46.9°F — Jul 10, 1983 1.59 in — Jul 19, 2015
August 111.0°F — Aug 16, 2020 46.0°F — Aug 16, 1987 3.59 in — Aug 20, 2023
September 113.0°F — Sep 2, 2022 37.0°F — Sep 28, 2013 1.12 in — Sep 10, 1976
October 104.0°F — Oct 2, 2024 18.1°F — Oct 31, 2019 1.52 in — Oct 31, 1987
November 87.1°F — Nov 1, 2015 15.1°F — Nov 21, 1979 1.30 in — Nov 21, 2013
December 79.0°F — Dec 6, 1977 1.9°F — Dec 24, 1984 2.46 in — Dec 28, 2004

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