Orland, CA: frost dates by year

Last spring and first fall frost at NOAA station USC00046506, 1951 to 2024, measured from daily minimum temperatures.

Elevation 254 ft, 39.746, -122.200. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Feb 27	Nov 27
Earliest	Jan 3 (2000)	Oct 31 (1956)
Latest	May 1 (2010)	Dec 27 (2014)
Trend	3.7 days earlier per decade	2.0 days later per decade
Years with data	73, 2 with no freeze	71, 5 with no freeze

At 28°F (hard freeze) the median last spring date is Feb 1 and the median first fall date is Dec 12.

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
2024	none	none	none	none
2023	Feb 23	none	none	none
2022	Feb 26	Dec 2	Feb 25	none
2021	Jan 27	Dec 21	Jan 27	none
2020	Jan 16	Nov 10	none	none
2019	Feb 23	Nov 29	Feb 10	none
2018	Mar 19	Nov 14	Feb 25	none
2017	Apr 29	Dec 10	Jan 5	none
2016	none	Dec 6	none	Dec 7
2015	Jan 5	Nov 26	none	Nov 29
2014	Feb 6	Dec 27	none	none
2013	Feb 13	Nov 25	Jan 19	Dec 4
2012	Apr 6	Dec 14	Jan 17	Dec 19
2011	Feb 26	Nov 19	Jan 10	Dec 24
2010	May 1	Nov 24	none	Dec 30
2009	Feb 10	Dec 3	Feb 10	Dec 6
2008	Feb 14	Dec 4	none	Dec 18
2007	Feb 27	Dec 1	Jan 16	Dec 1
2006	Mar 10	Nov 25	Feb 21	Dec 17
2005	Jan 14	Dec 2	none	none
2004	Feb 7	Nov 30	Jan 4	none
2003	Feb 22	Dec 26	none	none
2002	Mar 16	none	Jan 31	none
2001	Apr 14	none	Apr 8	none
2000	Jan 3	Nov 11	Jan 2	Nov 18
1999	Apr 9	Dec 15	Feb 10	none
1998	Jan 6	Dec 4	none	Dec 19
1997	Mar 5	Dec 20	Jan 15	Dec 23
1996	Feb 26	no data	Feb 25	no data
1994	Mar 23	Nov 14	none	Dec 9
1993	Feb 24	Nov 20	Jan 11	Nov 23
1992	Jan 22	Dec 5	Jan 11	Dec 5
1991	Mar 27	Dec 4	Mar 11	Dec 13
1990	Mar 13	Nov 20	Feb 21	Dec 20
1989	Feb 15	Nov 28	Feb 8	Nov 29
1988	Feb 16	Dec 17	Feb 4	Dec 26
1987	Mar 22	Nov 28	none	Dec 26
1986	Mar 14	Dec 10	Feb 9	none
1985	Feb 9	Nov 9	Jan 1	Nov 13
1984	Feb 22	Nov 25	Feb 22	none
1983	Feb 4	Nov 25	Jan 21	Dec 21
1982	Apr 7	Nov 21	Feb 11	Dec 31
1981	Feb 4	none	none	none
1980	Jan 30	no data	Jan 29	no data
1979	Feb 15	Nov 21	Feb 2	Nov 21
1978	Feb 11	Nov 12	none	Nov 12
1977	Mar 14	Nov 15	Mar 14	Nov 20
1976	Mar 25	Nov 29	Mar 3	Dec 26
1975	Feb 23	Nov 22	Jan 29	Nov 29
1974	Mar 10	Nov 22	Jan 11	Dec 25
1973	Apr 1	Nov 3	Jan 8	none
1972	Mar 28	Dec 5	Feb 1	Dec 5
1971	Apr 21	Dec 9	Feb 28	Dec 10
1970	Jan 29	Dec 12	Jan 6	Dec 25
1969	Mar 15	Nov 19	Jan 31	Dec 1
1968	Jan 29	Dec 3	Jan 28	Dec 3
1967	Apr 28	Dec 2	Jan 22	Dec 16
1966	Mar 4	Dec 26	Mar 4	Dec 28
1965	Feb 24	Nov 28	Jan 1	Dec 15
1964	Mar 25	Nov 13	Mar 2	Nov 19
1963	Apr 16	Nov 18	Mar 15	Dec 12
1962	Mar 11	Dec 1	Feb 27	Dec 25
1961	Apr 19	Nov 18	Jan 18	none
1960	Feb 27	Nov 28	Jan 17	none
1959	Feb 13	Nov 15	Feb 13	Dec 7
1958	Mar 9	Nov 15	none	none
1957	Feb 6	Nov 23	Feb 5	Dec 22
1956	Mar 6	Oct 31	Mar 6	Nov 27
1955	Apr 27	Nov 1	Apr 2	none
1954	Mar 14	Nov 30	Jan 25	Dec 25
1953	Apr 8	Nov 20	none	Dec 23
1952	Mar 20	Nov 17	Jan 7	Nov 25
1951	Mar 12	Nov 24	Mar 10	Dec 14

"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.