All-time weather records — Morro Bay, CA

Record high
106.0°F
October 4, 1987
Record low
21.9°F
February 2, 2007
Wettest day
8.82 in
March 11, 1995

Climate change signal in Morro Bay

8.5%

of Morro Bay's all-time daily heat records were set in the last decade (31 of 366 records since 2015).

0%

of all-time daily cold records were set in the last decade (0 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 #
1950s
11
3
1960s
55
69
1970s
49
51
1980s
84
102
1990s
49
134
2000s
42
4
2010s
76
3
2020s
·
·

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 1959, the latest in 2015. Period of observation: 1959-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 89.1°F — Jan 17, 1976 23.0°F — Jan 3, 1993 3.70 in — Jan 1, 2006
February 87.1°F — Feb 20, 1995 21.9°F — Feb 2, 2007 3.00 in — Feb 18, 2017
March 91.9°F — Mar 26, 1988 28.0°F — Mar 4, 1969 8.82 in — Mar 11, 1995
April 102.0°F — Apr 6, 1989 30.9°F — Apr 5, 1993 2.55 in — Apr 10, 1982
May 100.0°F — May 14, 2014 33.1°F — May 6, 1965 2.23 in — May 21, 2006
June 100.9°F — Jun 25, 1976 39.0°F — Jun 13, 1992 0.71 in — Jun 5, 2011
July 97.0°F — Jul 9, 1992 39.9°F — Jul 1, 1963 1.82 in — Jul 19, 2015
August 98.1°F — Aug 28, 2009 39.9°F — Aug 21, 1992 0.78 in — Aug 20, 1976
September 102.0°F — Sep 8, 1984 39.9°F — Sep 9, 2012 1.20 in — Sep 29, 1976
October 106.0°F — Oct 4, 1987 36.0°F — Oct 31, 1991 2.10 in — Oct 17, 2016
November 91.9°F — Nov 2, 1967 30.9°F — Nov 14, 1992 1.77 in — Nov 17, 2023
December 81.0°F — Dec 30, 1980 21.9°F — Dec 22, 1990 3.65 in — Dec 18, 2010

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