Greenfield, IN: frost dates by year

Last spring and first fall frost at NOAA station USC00123527, 1951 to 2025, measured from daily minimum temperatures.

Elevation 869 ft, 39.786, -85.761. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 20	Oct 19
Earliest	Mar 30 (1999)	Sep 23 (1974)
Latest	May 27 (1961)	Nov 20 (2001)
Trend	1.1 days earlier per decade	little change (less than half a day per decade)
Years with data	71	70

At 28°F (hard freeze) the median last spring date is Apr 9 and the median first fall date is Nov 2.

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