Troy 3N, KS: frost dates by year

Last spring and first fall frost at NOAA station USC00148250, 1951 to 2023, measured from daily minimum temperatures.

Elevation 1,040 ft, 39.828, -95.088. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 17	Oct 16
Earliest	Mar 10 (2012)	Sep 19 (1991)
Latest	May 23 (2022)	Nov 10 (1983)
Trend	little change (less than half a day per decade)	1.7 days earlier per decade
Years with data	68	68

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

"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.