Sumter, SC: frost dates by year

Last spring and first fall frost at NOAA station USC00388440, 1951 to 2025, measured from daily minimum temperatures.

Elevation 177 ft, 33.936, -80.357. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Mar 23	Nov 8
Earliest	Feb 23 (2000)	Oct 4 (1974)
Latest	Apr 22 (1991)	Nov 30 (2024)
Trend	1.5 days earlier per decade	1.2 days later per decade
Years with data	72	70

At 28°F (hard freeze) the median last spring date is Mar 10 and the median first fall date is Nov 18.

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

"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.