Lebanon 2W, MO: frost dates by year

Last spring and first fall frost at NOAA station USC00234825, 1951 to 2024, measured from daily minimum temperatures.

Elevation 1,246 ft, 37.685, -92.694. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 16	Oct 19
Earliest	Mar 9 (2012)	Sep 21 (1983)
Latest	May 13 (1971)	Nov 11 (1998)
Trend	2.8 days earlier per decade	little change (less than half a day per decade)
Years with data	65	68

At 28°F (hard freeze) the median last spring date is Mar 31 and the median first fall date is Oct 31.

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
2024	Mar 29	Oct 16	Mar 28	Oct 16
2023	Apr 24	Oct 30	Mar 21	Oct 31
2022	no data	Oct 18	no data	Oct 18
2021	no data	Nov 4	no data	Nov 13
2019	Apr 1	Oct 12	Mar 16	Nov 1
2018	Apr 16	Oct 21	Apr 9	Nov 9
2017	Mar 15	Oct 25	Mar 15	Oct 29
2016	Apr 9	Nov 10	Mar 21	Nov 20
2015	Apr 4	Oct 30	Mar 6	Nov 21
2013	May 3	Oct 23	Mar 27	Oct 25
2012	Mar 9	Oct 7	Mar 8	Oct 27
2011	Apr 4	Oct 21	Mar 27	Oct 21
2010	Mar 25	no data	Mar 4	no data
2008	Apr 29	Oct 28	Mar 24	Oct 28
2006	Mar 27	Oct 13	Mar 24	Oct 23
2005	May 3	Oct 26	Mar 17	Oct 26
2004	Apr 2	Nov 5	Mar 22	Nov 25
2003	Apr 11	Nov 7	Apr 10	Nov 7
2002	Apr 5	Oct 14	Apr 5	Oct 14
2001	Apr 18	Oct 17	Apr 18	Oct 27
2000	Apr 8	Oct 7	Mar 12	Oct 8
1999	Apr 18	Oct 18	Mar 26	Oct 24
1998	Mar 23	Nov 11	Mar 21	Dec 7
1997	Apr 17	Oct 28	Apr 14	Oct 28
1996	Apr 6	Oct 19	Apr 6	Oct 31
1995	Apr 5	Sep 23	Mar 30	Nov 3
1994	Apr 7	Oct 25	Apr 7	Oct 26
1993	Apr 6	Oct 10	Mar 18	Oct 30
1992	Apr 28	Oct 17	Apr 3	Nov 4
1991	Mar 30	Oct 7	Mar 30	Nov 2
1990	Apr 12	Oct 11	Apr 12	Oct 22
1989	no data	Sep 24	no data	Oct 20
1988	Apr 20	Oct 6	Mar 30	Nov 17
1986	Apr 22	Nov 10	Mar 21	Nov 11
1985	Apr 9	Oct 1	Apr 9	Nov 5
1984	Apr 6	Sep 30	Mar 31	Nov 2
1983	Apr 25	Sep 21	Apr 19	Sep 23
1982	Apr 22	Oct 16	Apr 21	Oct 21
1981	Apr 6	Oct 19	Apr 6	Oct 23
1980	May 9	Oct 12	Mar 22	Oct 12
1979	Apr 28	Oct 5	Apr 6	Oct 5
1978	May 2	Oct 7	Mar 27	Nov 28
1977	Apr 6	Oct 12	Mar 22	Nov 11
1976	May 8	Oct 17	May 3	Oct 17
1975	Apr 20	Oct 19	Apr 12	Nov 13
1974	Apr 17	Nov 6	Apr 9	Nov 14
1973	Apr 28	Oct 30	Apr 13	Nov 6
1972	Apr 25	Oct 19	Apr 8	Oct 19
1971	May 13	Oct 31	Apr 7	Nov 7
1970	May 2	Oct 10	Apr 2	Nov 15
1969	Apr 29	Oct 17	Mar 30	Oct 28
1968	Apr 25	Oct 4	Mar 24	Oct 25
1967	Apr 24	Oct 28	Mar 18	Oct 28
1966	Apr 21	Oct 16	Apr 9	Nov 2
1965	Mar 31	Oct 24	Mar 27	Nov 17
1964	Apr 9	Oct 9	Mar 31	Oct 20
1963	May 1	Oct 29	Mar 22	Nov 2
1962	Apr 16	Oct 24	Apr 16	Nov 5
1961	May 2	Oct 20	Apr 10	Nov 4
1960	May 1	Oct 20	Apr 10	Oct 20
1959	Apr 14	Oct 18	Apr 13	Nov 5
1958	Apr 8	Oct 1	Mar 28	Nov 26
1957	Apr 14	Oct 19	Apr 14	Oct 26
1956	Apr 24	Nov 8	Apr 24	Nov 9
1955	Mar 29	Nov 3	Mar 28	Nov 3
1954	May 4	Oct 29	Apr 1	Oct 30
1953	Apr 20	Oct 29	Apr 20	Nov 5
1952	Apr 16	Oct 7	Apr 6	Oct 7
1951	no data	Nov 1	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.