Ojai, CA: frost dates by year

Last spring and first fall frost at NOAA station USC00046399, 1951 to 2025, measured from daily minimum temperatures.

Elevation 745 ft, 34.448, -119.228. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Mar 16	Nov 23
Earliest	Jan 11 (1993)	Oct 13 (2021)
Latest	Apr 26 (1989)	Dec 25 (1962)
Trend	2.3 days later per decade	2.3 days earlier per decade
Years with data	69	71, 2 with no freeze

At 28°F (hard freeze) the median last spring date is Feb 5 and the median first fall date is Dec 8.

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	Apr 4	Dec 2	Jan 29	none
2024	Apr 6	Nov 8	Jan 12	Nov 17
2023	Apr 5	Oct 30	Feb 23	none
2022	Apr 13	Nov 4	Mar 8	Nov 20
2021	Apr 15	Oct 13	Mar 17	Dec 11
2020	Mar 28	Nov 8	Feb 5	Nov 9
2019	Mar 15	Oct 30	Feb 23	Oct 31
2018	Mar 19	Nov 10	Feb 28	Dec 28
2017	Mar 7	Nov 19	Feb 25	Dec 21
2016	Mar 31	Nov 17	Feb 2	Nov 26
2015	Apr 7	Nov 4	Jan 3	Nov 11
2014	Feb 5	Nov 25	Feb 4	Dec 26
2013	Feb 28	Dec 4	Feb 21	Dec 4
2012	Apr 6	Nov 10	Mar 8	Dec 20
2011	Apr 9	no data	Feb 28	no data
2010	Mar 14	Nov 12	none	Nov 25
2009	Apr 5	Nov 15	Feb 15	Dec 8
2007	Mar 1	no data	Mar 1	no data
2006	Mar 22	Nov 26	Mar 13	Nov 29
2005	no data	Nov 27	no data	Dec 5
2004	Feb 28	Nov 23	Feb 13	Nov 29
2003	no data	Nov 22	no data	Nov 23
2002	Mar 16	Dec 23	Feb 1	none
2001	no data	none	no data	none
1999	Apr 10	Nov 23	Feb 12	none
1998	Mar 29	Dec 4	Jan 6	Dec 7
1997	Mar 2	Dec 10	none	Dec 12
1996	Feb 28	Nov 30	Jan 23	none
1995	Jan 18	Dec 17	none	none
1994	Feb 21	Nov 3	none	Nov 20
1993	Jan 11	Nov 25	Jan 5	Dec 16
1992	Jan 24	Nov 11	none	Dec 19
1991	Mar 21	Nov 16	none	Dec 1
1990	Mar 12	Nov 7	Feb 16	Nov 27
1989	Apr 26	Nov 28	Feb 16	Dec 12
1988	Mar 13	Dec 22	Jan 21	Dec 26
1987	Mar 31	Nov 24	Feb 27	Dec 14
1986	Feb 9	Dec 11	none	none
1985	Mar 26	Nov 12	Feb 5	Nov 19
1984	Feb 26	Nov 26	none	Dec 15
1983	Feb 10	Nov 22	Jan 1	Dec 5
1982	Apr 7	Dec 14	Jan 22	Dec 18
1981	Feb 27	Oct 14	Feb 1	none
1980	Apr 5	Nov 18	none	Nov 19
1979	Feb 8	Oct 30	Jan 29	Nov 7
1978	Jan 25	Nov 12	none	Nov 26
1977	Apr 3	none	none	none
1976	Mar 4	Nov 28	Jan 4	none
1975	Apr 7	Nov 18	Feb 22	Nov 30
1974	no data	Nov 26	no data	Dec 24
1973	Mar 22	Dec 3	Jan 26	none
1972	Feb 3	Oct 31	Feb 3	Dec 9
1971	Mar 3	Oct 30	Mar 2	Dec 9
1970	Jan 29	Dec 12	Jan 6	none
1969	Mar 14	Dec 10	none	Dec 29
1968	Mar 19	Dec 4	Jan 7	Dec 21
1967	Apr 6	Dec 4	Jan 10	Dec 20
1966	Mar 4	Dec 23	Feb 14	Dec 27
1965	Apr 11	Dec 15	none	Dec 18
1964	Mar 24	Nov 16	Feb 27	Nov 16
1963	Mar 19	Nov 22	Jan 20	none
1962	Mar 15	Dec 25	Feb 28	Dec 25
1961	Jan 13	Nov 17	Jan 3	none
1960	Feb 25	Nov 27	Jan 17	Dec 7
1959	Feb 23	Dec 6	none	none
1958	Mar 13	Nov 17	Jan 22	Nov 17
1957	Feb 5	Nov 17	Jan 31	none
1956	Apr 1	Nov 20	Feb 17	Dec 9
1955	Mar 23	Dec 3	Feb 20	Dec 30
1954	Mar 16	Nov 30	Jan 10	Dec 26
1953	Apr 10	Dec 5	Mar 3	Dec 24
1952	Mar 23	Nov 24	Feb 19	none
1951	Mar 4	Nov 24	Feb 28	Dec 8

"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.