Salem, MO: frost dates by year

Last spring and first fall frost at NOAA station USC00237506, 1951 to 2025, measured from daily minimum temperatures.

Elevation 1,205 ft, 37.634, -91.536. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 16	Oct 17
Earliest	Mar 5 (2012)	Sep 23 (1995)
Latest	May 12 (1960)	Nov 22 (2015)
Trend	2.5 days earlier per decade	1.9 days later per decade
Years with data	63	64

At 28°F (hard freeze) the median last spring date is Apr 2 and the median first fall date is Oct 30.

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

"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.