Monroe City, MO: frost dates by year

Last spring and first fall frost at NOAA station USC00235708, 1962 to 2024, measured from daily minimum temperatures.

Elevation 741 ft, 39.635, -91.723. Download the data (JSON) · NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 17	Oct 17
Earliest	Mar 23 (2017)	Oct 1 (1985)
Latest	May 10 (1966)	Nov 4 (1971)
Trend	0.6 days later per decade	little change (less than half a day per decade)
Years with data	36	39

At 28°F (hard freeze) the median last spring date is Apr 9 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	Apr 21	no data	Apr 5	no data
2023	Apr 24	Oct 30	Apr 24	Oct 30
2022	Apr 27	Oct 9	Apr 19	Oct 9
2021	Apr 22	Nov 2	Apr 22	Nov 3
2020	Apr 18	Oct 16	Apr 14	Oct 29
2019	no data	Oct 12	no data	Oct 31
2018	Apr 20	Oct 16	Apr 19	Oct 22
2017	Mar 23	Oct 29	Mar 17	Oct 29
2016	Apr 13	Oct 13	Apr 9	Nov 20
2015	no data	Oct 18	no data	Nov 8
2014	Apr 16	Nov 1	Apr 15	Nov 1
2013	Apr 21	Oct 23	Apr 20	Oct 25
2012	Apr 12	Oct 7	Mar 6	Oct 27
2011	May 4	Oct 21	Mar 29	Oct 28
1988	Apr 24	Oct 6	Mar 30	Oct 26
1987	Apr 5	Oct 3	Apr 4	Oct 8
1986	Apr 22	Oct 14	Mar 21	Nov 10
1985	Apr 9	Oct 1	Apr 9	Nov 20
1984	Apr 1	Oct 24	Mar 23	Nov 2
1983	Apr 20	Oct 14	Apr 19	Nov 5
1982	Apr 21	Oct 21	Apr 9	Oct 22
1981	Apr 6	Oct 19	Mar 20	Oct 23
1980	Apr 15	Oct 25	Apr 14	Oct 26
1979	Apr 10	Oct 5	Apr 6	Oct 13
1978	Mar 27	Oct 8	Mar 27	Nov 20
1977	Apr 6	Oct 13	Apr 6	Nov 11
1976	May 3	Oct 16	Apr 12	Oct 22
1975	Apr 12	Oct 2	Apr 4	Nov 13
1974	Apr 9	Oct 2	Apr 9	Nov 14
1973	Apr 18	Nov 3	Apr 18	Nov 4
1972	Apr 9	Oct 19	Apr 8	Oct 19
1971	Apr 7	Nov 4	Apr 3	Nov 7
1970	no data	Nov 4	no data	Nov 16
1968	Apr 24	Oct 25	Apr 24	Oct 27
1967	Apr 24	Oct 10	Apr 24	Nov 4
1966	May 10	Oct 17	Apr 10	Nov 2
1965	Apr 3	Oct 24	Mar 27	Nov 13
1964	Apr 9	Oct 6	Apr 9	Oct 6
1963	Apr 24	Nov 1	Mar 22	Nov 2
1962	no data	Oct 24	no data	Oct 26

"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.