Cynthiana, KY: frost dates by year

Last spring and first fall frost at NOAA station USC00151998, 1951 to 2025, measured from daily minimum temperatures.

Elevation 700 ft, 38.377, -84.303. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 16	Oct 21
Earliest	Mar 29 (2005)	Oct 2 (2003)
Latest	May 10 (2020)	Nov 10 (2016)
Trend	little change (less than half a day per decade)	2.2 days later per decade
Years with data	38	37

At 28°F (hard freeze) the median last spring date is Apr 6 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	Mar 22	Nov 10
2024	Apr 23	Oct 28	Mar 29	Nov 30
2023	Apr 26	Oct 31	Mar 30	Nov 1
2022	Apr 11	Oct 9	Apr 11	Oct 9
2021	Apr 24	Nov 3	Apr 4	Nov 3
2020	May 10	Oct 17	Apr 17	Nov 2
2019	Apr 2	Nov 1	Apr 2	Nov 3
2018	Apr 21	Oct 19	Apr 9	Nov 10
2017	Apr 9	Oct 26	Mar 24	Nov 11
2016	Apr 11	Nov 10	Apr 4	Nov 13
2015	Apr 24	Oct 18	Apr 23	Nov 14
2014	Apr 17	no data	Apr 17	no data
2013	Apr 27	Oct 25	Apr 6	Oct 25
2012	Apr 14	Oct 11	Mar 11	Nov 4
2011	no data	Oct 22	no data	Oct 29
2006	Apr 10	no data	Mar 27	no data
2005	Mar 29	Oct 27	Mar 19	Oct 28
2004	Apr 6	Nov 8	Apr 6	Nov 13
2003	Apr 24	Oct 2	Apr 24	Nov 8
2002	Apr 7	Nov 1	Apr 7	Nov 1
2001	Apr 19	Oct 6	Mar 28	Oct 27
2000	Apr 10	Oct 7	Apr 10	Nov 13
1999	Mar 30	Oct 21	Mar 29	Oct 25
1998	Apr 12	Oct 23	Mar 24	Nov 5
1997	Apr 19	Oct 22	Apr 15	Oct 22
1996	Apr 27	no data	Apr 11	no data
1995	Apr 7	Oct 18	Apr 6	Nov 4
1994	Apr 9	Oct 27	Apr 9	Oct 28
1993	Apr 23	Oct 23	Mar 20	Nov 2
1992	Apr 6	Oct 19	Apr 6	Oct 19
1991	Apr 3	Oct 17	Apr 1	Oct 21
1990	Apr 20	Oct 20	Apr 14	Oct 29
1988	Apr 26	Oct 6	Apr 21	Oct 12
1987	Apr 14	Oct 3	Apr 10	Oct 13
1986	Apr 24	Oct 15	Mar 23	Nov 13
1985	Apr 11	Nov 8	Apr 11	Nov 8
1984	Apr 20	Nov 3	Apr 3	Nov 3
1981	Apr 21	Oct 3	Mar 26	Oct 3
1980	May 9	no data	Apr 18	no data
1979	no data	Oct 14	no data	Oct 14
1951	no data	Oct 9	no data	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.