Louisa, VA: frost dates by year

Last spring and first fall frost at NOAA station USC00445050, 1951 to 2025, measured from daily minimum temperatures.

Elevation 420 ft, 38.042, -78.006. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 25	Oct 17
Earliest	Apr 4 (1958)	Sep 21 (1956)
Latest	May 22 (2002)	Nov 6 (2004)
Trend	0.9 days later per decade	little change (less than half a day per decade)
Years with data	75	74

At 28°F (hard freeze) the median last spring date is Apr 10 and the median first fall date is Oct 27.

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

"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.