Rochester, IN: frost dates by year

Last spring and first fall frost at NOAA station USC00127482, 1951 to 2025, measured from daily minimum temperatures.

Elevation 760 ft, 41.066, -86.210. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 26	Oct 13
Earliest	Apr 3 (2011)	Sep 18 (1959)
Latest	May 27 (1961)	Nov 12 (2016)
Trend	1.0 days earlier per decade	2.1 days later per decade
Years with data	73	74

At 28°F (hard freeze) the median last spring date is Apr 11 and the median first fall date is Oct 29.

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

"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.