Bucyrus, OH: frost dates by year

Last spring and first fall frost at NOAA station USC00331072, 1951 to 2025, measured from daily minimum temperatures.

Elevation 955 ft, 40.813, -82.970. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 29	Oct 16
Earliest	Apr 3 (2019)	Sep 14 (1953)
Latest	May 24 (1956)	Nov 17 (2022)
Trend	2.0 days earlier per decade	3.5 days later per decade
Years with data	73	73

At 28°F (hard freeze) the median last spring date is Apr 14 and the median first fall date is Oct 28.

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

"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.