Kenosha, WI: frost dates by year

Last spring and first fall frost at NOAA station USC00474174, 1951 to 2025, measured from daily minimum temperatures.

Elevation 600 ft, 42.561, -87.816. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 24	Oct 19
Earliest	Mar 28 (2005)	Sep 20 (1956)
Latest	May 30 (1996)	Nov 20 (2024)
Trend	1.0 days earlier per decade	2.3 days later per decade
Years with data	74	74

At 28°F (hard freeze) the median last spring date is Apr 10 and the median first fall date is Nov 3.

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 16	no data	Apr 8	no data
2024	Apr 25	Nov 20	Mar 29	Nov 21
2023	Apr 26	Oct 30	Mar 30	Oct 30
2022	Apr 27	Oct 19	Apr 1	Nov 13
2021	Apr 22	Nov 2	Apr 2	Nov 3
2020	May 9	Oct 24	Apr 16	Oct 30
2019	Apr 28	Oct 25	Apr 1	Oct 31
2018	Apr 29	Oct 13	Apr 17	Oct 21
2017	Mar 29	Nov 6	Mar 22	Nov 7
2016	May 15	Nov 12	Apr 9	Nov 19
2015	Apr 24	Oct 17	Apr 23	Nov 14
2014	Apr 16	Nov 1	Apr 16	Nov 2
2013	Apr 20	Oct 22	Apr 20	Nov 8
2012	Apr 13	Oct 27	Mar 11	Nov 12
2011	Apr 21	Oct 30	Apr 1	Nov 17
2010	Apr 9	Oct 29	Apr 9	Nov 5
2009	Apr 17	Oct 10	Mar 30	Oct 11
2008	Apr 30	Oct 28	Apr 2	Nov 10
2007	Apr 15	Nov 7	Apr 10	Nov 15
2006	Apr 9	Oct 12	Apr 9	Oct 25
2005	Mar 28	Nov 10	Mar 28	Nov 16
2004	May 3	Nov 8	Mar 22	Nov 14
2003	Apr 23	Oct 2	Apr 10	Nov 7
2002	May 21	Oct 20	Apr 6	Nov 1
2001	Apr 18	Oct 7	Apr 18	Dec 2
2000	Apr 21	Oct 6	Apr 8	Nov 15
1999	Apr 25	Oct 23	Mar 27	Oct 23
1998	Apr 5	Nov 3	Mar 22	Nov 6
1997	Apr 18	Oct 22	Apr 18	Oct 27
1996	May 30	Oct 30	Apr 9	Oct 31
1995	Apr 24	Nov 2	Apr 5	Nov 3
1994	Apr 7	Nov 19	Apr 7	Nov 19
1993	Apr 27	Sep 30	Apr 4	Nov 1
1992	Apr 28	Oct 17	Apr 5	Oct 19
1991	Apr 11	Oct 16	Apr 2	Nov 2
1990	Apr 18	Oct 19	Apr 12	Nov 7
1989	May 7	Oct 4	Apr 13	Nov 2
1988	Apr 21	Oct 12	Apr 21	Oct 29
1987	Apr 9	Oct 8	Apr 4	Nov 10
1986	Apr 23	Nov 2	Apr 22	Nov 2
1985	no data	Nov 8	no data	Nov 19
1984	May 16	Sep 26	Apr 11	Oct 23
1983	May 16	Sep 22	May 10	Nov 5
1982	Apr 22	Oct 16	Apr 21	Oct 21
1981	May 10	Oct 18	May 10	Oct 23
1980	Apr 24	Oct 13	Apr 13	Oct 26
1979	May 1	Oct 13	Apr 10	Oct 25
1978	May 2	Oct 8	Apr 22	Oct 17
1977	May 8	Oct 16	May 8	Nov 12
1976	May 7	Oct 18	Mar 22	Oct 22
1975	Apr 21	Nov 13	Apr 13	Nov 14
1974	Apr 24	Sep 23	Apr 16	Nov 13
1973	Apr 14	Nov 3	Apr 13	Nov 5
1972	Apr 26	Oct 15	Apr 26	Oct 17
1971	May 12	Nov 1	Apr 24	Nov 4
1970	Apr 23	Oct 16	Apr 10	Nov 15
1969	Apr 30	Oct 14	Apr 30	Oct 22
1968	May 6	Oct 4	Apr 6	Nov 4
1967	May 6	Oct 11	Mar 22	Nov 4
1966	May 10	Oct 25	May 10	Oct 30
1965	Apr 19	Oct 28	Mar 30	Oct 29
1964	Apr 15	Oct 6	Apr 9	Oct 7
1963	May 1	Nov 2	May 1	Nov 3
1962	Apr 16	Oct 23	Apr 16	Oct 24
1961	May 1	Oct 2	Apr 16	Nov 6
1960	May 13	Oct 20	Apr 10	Oct 21
1959	Apr 23	Oct 12	Apr 22	Oct 28
1958	Apr 29	Oct 1	Apr 29	Nov 7
1957	Apr 16	Oct 25	Apr 15	Oct 26
1956	May 24	Sep 20	Apr 24	Nov 8
1955	Apr 7	Oct 1	Mar 29	Nov 3
1954	May 9	Oct 30	Apr 9	Oct 30
1953	Apr 21	Nov 4	Apr 20	Nov 4
1952	Apr 13	Oct 6	Apr 12	Oct 6
1951	Apr 22	Oct 8	Mar 26	Nov 1

"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.