Bolivar 1 Ne, MO: frost dates by year

Last spring and first fall frost at NOAA station USC00230789, 1951 to 2025, measured from daily minimum temperatures.

Elevation 987 ft, 37.616, -93.391. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 16	Oct 18
Earliest	Mar 10 (2012)	Sep 16 (1989)
Latest	May 9 (1980)	Nov 10 (2016)
Trend	0.9 days earlier per decade	little change (less than half a day per decade)
Years with data	66	70

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

"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.