Union 8 S, SC: frost dates by year

Last spring and first fall frost at NOAA station USC00388786, 1951 to 2025, measured from daily minimum temperatures.

Elevation 480 ft, 34.605, -81.663. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 12	Oct 27
Earliest	Mar 13 (1991)	Oct 3 (1981)
Latest	May 9 (1989)	Dec 7 (1978)
Trend	little change (less than half a day per decade)	little change (less than half a day per decade)
Years with data	65	67

At 28°F (hard freeze) the median last spring date is Mar 28 and the median first fall date is Nov 5.

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

"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.