Washington, KS: frost dates by year

Last spring and first fall frost at NOAA station USC00148578, 1952 to 2025, measured from daily minimum temperatures.

Elevation 1,305 ft, 39.809, -97.055. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 22	Oct 12
Earliest	Mar 29 (2006)	Sep 19 (1991)
Latest	May 21 (1968)	Nov 10 (1998)
Trend	0.7 days earlier per decade	0.9 days later per decade
Years with data	70	73

At 28°F (hard freeze) the median last spring date is Apr 11 and the median first fall date is Oct 26.

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 12	Oct 22	Apr 9	Oct 30
2024	Apr 21	Oct 14	Apr 5	Oct 16
2023	May 3	Oct 28	Apr 24	Oct 28
2022	Apr 26	Oct 8	Apr 26	Oct 18
2021	Apr 22	Oct 22	Apr 2	Nov 13
2019	Apr 15	Oct 12	Apr 14	Oct 12
2018	Apr 20	Oct 15	Apr 16	Oct 16
2017	Apr 27	Oct 11	Apr 11	Oct 28
2016	Apr 13	Oct 13	Apr 12	Nov 12
2015	Mar 31	Oct 30	Mar 27	Oct 30
2014	May 17	Oct 11	Apr 16	Nov 1
2013	May 4	Oct 19	Apr 25	Oct 25
2012	Apr 23	Oct 7	Mar 10	Oct 7
2011	May 4	Oct 20	Mar 30	Oct 20
2010	Apr 9	Oct 28	Mar 23	Nov 2
2009	Apr 15	Oct 10	Apr 12	Oct 11
2008	Apr 14	Oct 27	Apr 14	Oct 28
2007	Apr 16	Oct 23	Apr 9	Nov 1
2006	Mar 29	Oct 13	Mar 26	Oct 14
2005	May 3	Oct 24	Apr 30	Oct 25
2004	May 3	Oct 2	Apr 11	Nov 3
2003	Apr 9	Oct 17	Apr 9	Oct 26
2002	no data	Oct 13	no data	Oct 31
2001	Apr 18	Oct 6	Mar 27	Oct 27
2000	Apr 12	Oct 6	Apr 12	Oct 7
1999	Apr 18	Oct 4	Apr 4	Oct 20
1998	Apr 17	Nov 10	Mar 21	Nov 13
1997	May 13	Oct 26	Apr 14	Oct 27
1996	Apr 30	Oct 30	Apr 8	Oct 31
1995	Apr 27	Sep 22	Apr 6	Oct 21
1994	May 1	Oct 25	May 1	Oct 25
1993	Apr 9	Oct 10	Apr 5	Oct 27
1992	May 6	Oct 16	Apr 22	Nov 5
1991	May 6	Sep 19	Mar 30	Oct 6
1990	Apr 28	Oct 10	Apr 12	Oct 10
1989	Apr 19	Oct 19	Apr 19	Oct 19
1988	Apr 28	Oct 12	Apr 27	Oct 28
1987	Apr 12	Oct 3	Apr 5	Oct 21
1986	Apr 22	Oct 14	Mar 21	Nov 5
1985	Apr 9	Oct 1	Apr 1	Nov 2
1984	Apr 19	Sep 29	Mar 30	Sep 29
1983	Apr 24	Sep 23	Apr 15	Nov 10
1982	Apr 22	Oct 16	Apr 21	Oct 21
1981	May 11	Oct 19	Mar 23	Oct 23
1980	Apr 15	Oct 12	Apr 13	Oct 26
1979	May 11	Oct 10	Apr 9	Nov 2
1978	Apr 21	Oct 7	Apr 21	Nov 6
1977	Apr 5	Oct 11	Apr 5	Oct 12
1976	May 3	Oct 8	May 3	Oct 17
1975	Apr 20	Sep 25	Apr 12	Oct 18
1974	no data	Oct 1	no data	Oct 15
1973	May 15	Oct 29	Apr 11	Oct 29
1972	Apr 9	Oct 7	Apr 9	Oct 19
1971	Apr 7	Oct 10	Apr 6	Nov 2
1970	May 2	Oct 9	Apr 9	Oct 16
1969	Apr 29	Oct 14	Apr 6	Oct 14
1968	May 21	Oct 4	Apr 24	Nov 9
1967	May 2	Sep 28	May 2	Oct 28
1966	Apr 28	Oct 10	Apr 21	Oct 16
1965	Apr 28	Oct 12	Apr 28	Oct 12
1964	Apr 9	Oct 6	Apr 9	Oct 19
1963	Apr 23	Oct 29	Apr 4	Nov 1
1962	Apr 15	Oct 25	Apr 13	Oct 25
1961	May 2	Sep 28	Apr 10	Oct 26
1960	Apr 10	Oct 19	Mar 26	Oct 20
1959	Apr 22	Oct 9	Apr 13	Oct 27
1958	Apr 29	Oct 1	Apr 29	Oct 28
1957	Apr 14	Oct 25	Apr 13	Oct 25
1956	Apr 29	Oct 26	Apr 24	Nov 9
1955	Apr 8	Oct 15	Apr 7	Oct 24
1954	May 4	Oct 30	Apr 4	Oct 30
1953	May 14	Oct 5	Apr 20	Oct 27
1952	no data	Oct 6	no data	Oct 6

"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.