Cachuma Lake, CA: frost dates by year

Last spring and first fall frost at NOAA station USC00041253, 1952 to 2025, measured from daily minimum temperatures.

Elevation 789 ft, 34.582, -119.982. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Mar 5	Nov 29
Earliest	Jan 3 (1983)	Oct 11 (2008)
Latest	Jun 2 (1955)	Dec 28 (2018)
Trend	0.5 days later per decade	0.6 days earlier per decade
Years with data	68, 2 with no freeze	69, 3 with no freeze

At 28°F (hard freeze) the median last spring date is Jan 30 and the median first fall date is Dec 10.

The trend is a straight-line fit through the years with a freeze. A positive spring trend means the last frost now comes later. Short or patchy records give noisy trends.

Chart

Last spring frost (32°F)

First fall frost (32°F)

Dots are single years. The gray line is the median, the green line the fitted trend.

Year by year

Year	Last spring 32°F	First fall 32°F	Last spring 28°F	First fall 28°F
2025	Mar 10	none	none	none
2024	Jan 17	Dec 3	none	none
2023	Mar 28	none	none	none
2022	Mar 7	Nov 10	Feb 25	none
2021	Mar 12	Dec 12	none	none
2020	Mar 26	Nov 9	Feb 5	none
2019	Feb 24	Dec 16	Feb 23	none
2018	Mar 18	Dec 28	Feb 28	none
2017	Feb 24	Oct 13	Jan 27	Nov 19
2016	Feb 4	Nov 25	Feb 2	Dec 18
2015	Apr 16	Nov 25	Mar 6	Nov 25
2014	Apr 10	Nov 4	Feb 6	Dec 26
2013	May 24	Oct 20	Feb 26	Dec 5
2012	Apr 7	Nov 10	Jan 19	Nov 11
2011	Apr 9	Dec 3	Feb 27	Dec 8
2010	Mar 15	Nov 12	none	Nov 25
2009	Mar 10	Dec 6	none	Dec 8
2008	Apr 22	Oct 11	none	none
2007	no data	Nov 23	no data	Dec 13
2006	no data	Oct 26	no data	Oct 29
2004	Feb 12	no data	Jan 4	no data
2003	Feb 21	Nov 23	none	Dec 28
2002	Feb 6	Dec 23	Jan 31	none
2001	Jan 30	Dec 5	Jan 18	none
2000	Jan 9	Nov 11	Jan 8	Nov 13
1999	Apr 5	Dec 11	Mar 5	none
1998	Jan 6	Dec 4	none	Dec 7
1997	Feb 25	Dec 10	none	Dec 10
1996	Feb 27	Dec 3	none	none
1995	none	Dec 21	none	none
1994	Feb 12	Nov 19	none	Dec 8
1993	Jan 11	Dec 16	Jan 4	none
1992	Jan 14	Dec 19	none	none
1991	Mar 16	Nov 29	Jan 1	Dec 20
1990	Mar 14	Nov 21	Feb 15	Dec 16
1989	Mar 4	no data	Feb 6	no data
1988	Feb 18	Dec 14	none	Dec 27
1987	Mar 20	Nov 29	Jan 21	Dec 24
1986	Feb 9	none	none	none
1985	Mar 26	Nov 19	Feb 3	Dec 10
1984	Jan 20	Dec 21	none	Dec 21
1983	Jan 3	no data	none	no data
1982	Mar 20	Dec 14	Jan 8	Dec 25
1981	Feb 26	Dec 24	none	none
1980	Feb 11	Nov 30	none	none
1979	Feb 8	Nov 20	Jan 29	none
1978	none	Nov 12	none	Dec 7
1977	Mar 31	Nov 20	Jan 9	none
1976	Mar 7	Dec 24	Jan 3	none
1975	Feb 22	Nov 20	Jan 30	none
1974	Mar 5	Dec 1	Feb 7	Dec 24
1973	Jan 27	Nov 4	Jan 6	none
1972	Apr 20	Dec 2	none	Dec 9
1971	Mar 6	Oct 29	Feb 27	Oct 30
1970	Jan 30	Dec 28	none	none
1969	Mar 14	Dec 28	none	Dec 29
1968	Jan 29	Dec 12	none	Dec 12
1967	Feb 21	Dec 11	none	Dec 11
1966	Mar 3	Dec 25	Jan 24	Dec 29
1965	Feb 13	Nov 4	Jan 1	none
1964	Mar 26	Nov 15	none	none
1963	Jan 23	Dec 11	Jan 14	none
1962	Mar 7	Dec 22	Feb 28	Dec 28
1961	Apr 21	Nov 19	Jan 1	none
1960	Feb 26	Dec 7	Jan 17	Dec 30
1959	Feb 13	Dec 15	Jan 4	none
1958	Mar 10	Nov 17	Jan 22	Nov 17
1957	Mar 24	Nov 17	Feb 4	none
1956	no data	Nov 20	no data	Dec 8
1955	Jun 2	Nov 1	Apr 27	none
1954	Mar 28	no data	Mar 27	no data
1953	no data	Oct 24	no data	Dec 5
1952	no data	Oct 27	no data	Nov 25

"none" means the station recorded no freeze at that threshold in that half of the year. "no data" means more than 10% of the season's daily readings were missing. Years with no usable data are left out. See the methodology for the rules, and the ZIP lookup for 1991 to 2020 frost probabilities.