Spencer, IN: frost dates by year

Last spring and first fall frost at NOAA station USC00128290, 1951 to 2023, measured from daily minimum temperatures.

Elevation 549 ft, 39.284, -86.771. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 24	Oct 11
Earliest	Apr 3 (2019)	Sep 20 (1991)
Latest	May 27 (1961)	Nov 10 (2016)
Trend	1.1 days earlier per decade	1.4 days later per decade
Years with data	70	70

At 28°F (hard freeze) the median last spring date is Apr 12 and the median first fall date is Oct 25.

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

"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.