Wenatchee, WA: frost dates by year

Last spring and first fall frost at NOAA station USC00459074, 1951 to 2025, measured from daily minimum temperatures.

Elevation 626 ft, 47.429, -120.310. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 11	Oct 26
Earliest	Mar 6 (2015)	Sep 13 (1970)
Latest	May 14 (1964)	Nov 23 (1965)
Trend	2.3 days earlier per decade	1.8 days later per decade
Years with data	71	73

At 28°F (hard freeze) the median last spring date is Mar 14 and the median first fall date is Nov 7.

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 20	no data	Feb 19	no data
2024	May 1	Nov 7	Mar 7	Nov 19
2023	Apr 5	Oct 28	Mar 16	Oct 28
2022	Apr 16	Nov 3	Apr 15	Nov 10
2021	Apr 12	Oct 30	Mar 8	Nov 17
2020	Apr 14	Oct 26	Apr 3	Oct 27
2019	Mar 20	Oct 10	Mar 15	Oct 29
2018	Apr 3	Nov 8	Mar 10	Nov 8
2017	Apr 12	Nov 4	Mar 9	Dec 4
2016	Mar 19	Nov 17	Feb 24	Dec 5
2015	Mar 6	Nov 4	Mar 5	Nov 20
2014	Apr 1	Nov 12	Mar 5	Nov 12
2013	Mar 27	Nov 4	Mar 25	Nov 21
2012	Apr 8	Oct 21	Mar 8	Nov 11
2011	Apr 7	Oct 26	Mar 7	Nov 5
2010	Apr 11	Nov 9	Feb 24	Nov 22
2009	Apr 4	Oct 11	Mar 14	Oct 11
2008	Apr 22	Oct 11	Apr 2	Nov 23
2007	Apr 4	Oct 27	Apr 3	Nov 15
2006	no data	Oct 30	no data	Oct 31
2004	Mar 19	Oct 25	Mar 4	Nov 4
2003	Apr 4	Oct 31	Mar 8	Nov 1
2002	Apr 3	Oct 24	Mar 21	Oct 25
2001	May 2	Oct 28	Mar 4	Nov 7
2000	Mar 24	Oct 24	Mar 7	Nov 11
1999	Apr 11	Oct 16	Mar 11	Dec 7
1998	Mar 29	Oct 30	Feb 28	Dec 3
1997	Apr 12	Nov 11	Mar 3	Nov 12
1996	Apr 21	Oct 17	Mar 28	Oct 31
1995	Apr 15	Oct 29	Mar 6	Oct 29
1994	Mar 25	Nov 3	Mar 22	Nov 5
1993	Mar 26	Nov 5	Mar 13	Nov 7
1992	Mar 29	Oct 15	Feb 19	Nov 10
1991	Mar 27	Oct 28	Mar 17	Oct 29
1990	Mar 26	Nov 2	Mar 2	Dec 2
1989	Apr 3	Oct 29	Mar 7	Nov 27
1988	Apr 9	Oct 27	Feb 25	Nov 14
1987	Mar 30	Nov 17	Mar 29	Nov 17
1986	Apr 24	Nov 9	Feb 23	Nov 10
1985	Apr 24	Sep 29	Mar 26	Nov 11
1984	Apr 11	Oct 15	Feb 26	Oct 17
1983	Apr 12	Nov 7	Feb 7	Nov 29
1982	May 7	Oct 18	Apr 1	Oct 19
1981	Apr 14	Oct 21	Mar 6	Nov 5
1980	Apr 7	Oct 23	Apr 7	Nov 12
1979	Apr 20	Oct 31	Mar 14	Nov 1
1978	Apr 17	Oct 22	Mar 15	Oct 26
1977	Apr 17	Oct 4	Mar 14	Nov 4
1976	Apr 23	Oct 15	Mar 15	Oct 19
1975	Apr 7	Oct 23	Apr 3	Nov 9
1974	Apr 13	Oct 5	Mar 20	Oct 5
1973	Apr 8	Oct 31	Feb 23	Nov 4
1972	no data	Sep 27	no data	Oct 27
1971	no data	Oct 16	no data	Oct 17
1970	Apr 27	Sep 13	Mar 19	Oct 15
1969	Mar 25	Oct 13	Mar 14	Oct 13
1968	Apr 27	Oct 16	Feb 22	Nov 16
1967	Apr 14	Nov 2	Mar 13	Nov 4
1966	Apr 19	Nov 1	Mar 22	Nov 11
1965	Apr 4	Nov 23	Mar 25	Nov 27
1964	May 14	Oct 18	Mar 25	Nov 15
1963	Apr 2	Oct 19	Mar 13	Nov 20
1962	May 1	Nov 7	Mar 14	Nov 27
1961	Apr 20	Oct 20	Apr 20	Oct 29
1960	Apr 21	Oct 10	Mar 10	Nov 4
1959	Apr 9	Oct 30	Mar 3	Nov 5
1958	Mar 27	Oct 24	Mar 15	Nov 16
1957	Mar 27	Oct 20	Mar 14	Nov 2
1956	Apr 6	Oct 20	Mar 15	Nov 14
1955	Apr 28	Oct 31	Mar 26	Nov 12
1954	May 1	Oct 1	May 1	Oct 24
1953	Apr 14	Oct 22	Apr 2	Nov 3
1952	Apr 29	Oct 28	Apr 8	Nov 2
1951	Apr 22	Oct 15	Apr 21	Oct 30

"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.