Everett, WA: frost dates by year

Last spring and first fall frost at NOAA station USC00452675, 1951 to 2025, measured from daily minimum temperatures.

Elevation 60 ft, 47.975, -122.195. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 7	Oct 31
Earliest	Feb 15 (2025)	Sep 13 (1970)
Latest	May 5 (1952)	Nov 29 (2024)
Trend	3.6 days earlier per decade	0.9 days later per decade
Years with data	63	57

At 28°F (hard freeze) the median last spring date is Mar 5 and the median first fall date is Nov 15.

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	Feb 15	Oct 15	Feb 14	Dec 1
2024	Mar 7	Nov 29	Mar 6	Dec 4
2023	Apr 5	Oct 27	Feb 27	Oct 29
2022	no data	Nov 9	no data	Nov 9
2015	Mar 5	no data	Mar 4	no data
2014	Mar 23	Nov 12	Feb 9	Nov 12
2013	Mar 25	no data	Mar 5	no data
2012	Mar 23	Nov 9	Mar 7	Nov 10
2011	Feb 27	Nov 4	Feb 27	Nov 6
2010	Apr 14	Nov 21	none	Nov 22
2009	no data	Oct 11	no data	Dec 2
2008	Apr 20	Oct 11	Mar 5	Dec 14
2007	Mar 21	Oct 26	Feb 27	Nov 2
2006	Mar 20	Oct 30	Mar 14	Oct 30
2005	Apr 8	no data	Feb 22	no data
2003	no data	Oct 31	no data	Nov 1
2002	Mar 21	no data	Mar 4	no data
2001	Apr 16	Nov 18	Feb 27	Dec 22
2000	Mar 27	no data	Feb 22	no data
1999	Apr 19	Oct 16	Mar 8	none
1998	Mar 30	no data	Mar 10	no data
1997	Apr 8	Nov 13	Apr 4	Nov 13
1996	Mar 28	Oct 31	Mar 5	Nov 23
1995	Apr 17	Oct 29	Mar 7	Oct 30
1994	Mar 25	Nov 5	Mar 8	Nov 18
1992	Apr 8	no data	Feb 16	no data
1990	Mar 25	Oct 11	Feb 27	Dec 19
1989	Mar 5	Nov 1	Mar 5	none
1988	Mar 27	Nov 14	Feb 23	Dec 15
1987	Mar 29	Nov 17	Feb 26	Nov 17
1986	Apr 30	Nov 10	Feb 21	Nov 10
1985	Apr 21	Oct 8	Mar 10	Nov 11
1984	Apr 26	Oct 19	Jan 21	Dec 2
1983	Apr 14	Oct 17	Feb 5	Nov 30
1982	Apr 28	Oct 19	Mar 17	Nov 9
1981	Apr 13	Oct 21	Feb 12	Nov 28
1980	Apr 11	no data	Jan 31	no data
1979	Mar 22	Oct 31	Feb 3	Nov 14
1978	Mar 15	Oct 26	Mar 1	Nov 11
1977	Mar 30	Nov 8	Feb 25	Nov 18
1976	Mar 15	Oct 19	Mar 8	Nov 26
1975	Apr 22	Oct 24	Apr 1	Nov 18
1974	Apr 14	Oct 5	Mar 9	Nov 29
1973	Apr 7	Nov 2	Feb 21	Nov 3
1972	Apr 30	Oct 11	Feb 10	Oct 30
1971	Apr 12	Oct 17	Mar 21	Oct 28
1970	Apr 14	Sep 13	Mar 10	Oct 27
1969	Apr 26	Oct 13	Mar 13	Oct 14
1968	Apr 16	no data	Apr 13	no data
1967	Apr 17	Nov 2	Apr 17	Dec 13
1966	Mar 22	Nov 8	Mar 4	none
1965	Apr 4	Nov 23	Mar 19	Nov 23
1964	Apr 19	Nov 14	Feb 28	Nov 14
1963	Apr 2	Nov 20	Apr 2	Nov 20
1962	Apr 11	Nov 29	Mar 12	Dec 23
1961	Apr 20	Sep 23	Mar 4	Nov 2
1960	Mar 12	Nov 4	Mar 4	Nov 27
1959	Mar 15	Nov 4	Jan 6	Nov 7
1958	Mar 15	Oct 24	Mar 12	Nov 15
1957	Mar 20	Nov 2	Feb 22	Nov 3
1956	Apr 6	Oct 28	Mar 14	Nov 19
1955	Apr 28	Nov 11	Mar 20	Nov 11
1954	May 1	Oct 25	Apr 20	Dec 1
1953	Apr 14	Nov 2	Mar 1	none
1952	May 5	Oct 15	Apr 8	Nov 16
1951	Apr 26	Oct 26	Apr 20	Oct 31

"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.