Sidney 1 S, OH: frost dates by year

Last spring and first fall frost at NOAA station USC00337693, 1978 to 2025, measured from daily minimum temperatures.

Elevation 940 ft, 40.271, -84.151. Download the data (JSON) · NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 26	Oct 14
Earliest	Apr 3 (2019)	Sep 23 (1995)
Latest	May 23 (2002)	Nov 5 (2016)
Trend	little change (less than half a day per decade)	3.6 days later per decade
Years with data	41	38

At 28°F (hard freeze) the median last spring date is Apr 13 and the median first fall date is Oct 30.

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 24	Apr 13	Nov 10
2024	Apr 23	Oct 17	Apr 22	Nov 29
2023	Apr 27	Oct 23	Mar 31	Oct 31
2022	Apr 28	no data	Apr 17	no data
2021	May 11	no data	Apr 4	no data
2020	May 13	Oct 17	May 10	Nov 1
2019	Apr 3	Oct 19	Apr 3	Nov 1
2018	no data	Oct 16	no data	Nov 8
2017	Apr 23	no data	Apr 8	no data
2016	May 17	Nov 5	Apr 10	Nov 12
2015	Apr 29	Oct 17	Apr 25	Oct 18
2014	Apr 18	Oct 24	Apr 17	Nov 2
2013	Apr 27	Oct 22	Apr 21	Oct 25
2012	Apr 14	Oct 8	Apr 13	Nov 4
2011	Apr 22	Oct 22	Apr 4	Oct 30
2010	May 11	Oct 22	Mar 31	Nov 1
2009	Apr 24	Oct 11	Apr 13	Oct 18
2008	Apr 16	no data	Apr 16	no data
2002	May 23	Oct 13	Apr 8	Oct 20
2001	Apr 30	Oct 7	Apr 20	Nov 6
2000	Apr 15	Sep 29	Apr 13	Oct 30
1999	Apr 26	Oct 18	Apr 26	Oct 24
1998	Apr 28	Oct 23	Apr 6	Nov 5
1997	Apr 26	Oct 15	Apr 19	Oct 23
1996	May 14	Oct 4	Apr 17	Nov 2
1995	Apr 15	Sep 23	Apr 6	Nov 4
1994	May 3	Oct 11	Apr 23	Oct 27
1993	Apr 28	Oct 10	Apr 27	Nov 2
1992	Apr 13	Oct 17	Apr 7	Oct 19
1991	Apr 12	Oct 7	Apr 12	Oct 16
1990	Apr 19	Oct 26	Apr 19	Oct 26
1989	May 8	Oct 4	Apr 14	Oct 9
1988	Apr 26	no data	Apr 25	no data
1987	Apr 9	Oct 4	Apr 4	Oct 13
1986	Apr 24	Oct 19	Apr 23	Nov 10
1985	Apr 11	Oct 2	Apr 10	Nov 21
1984	Apr 25	Oct 2	Apr 2	Nov 3
1983	May 9	Sep 24	Apr 21	Oct 27
1982	Apr 23	Oct 17	Apr 12	Oct 17
1981	Apr 21	Oct 3	Apr 21	Oct 24
1980	May 9	Oct 6	Apr 17	Oct 6
1979	May 5	Oct 13	Apr 10	Oct 14
1978	no data	Oct 9	no data	Oct 24

"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 1991–2020 frost probabilities.