Cosby 2W, MO: frost dates by year

Last spring and first fall frost at NOAA station USC00231924, 2009 to 2025, measured from daily minimum temperatures.

Elevation 910 ft, 39.854, -94.708. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 14	Oct 19
Earliest	Mar 10 (2012)	Sep 23 (2012)
Latest	Apr 27 (2022)	Nov 10 (2016)
Trend	7.7 days later per decade	1.8 days later per decade
Years with data	15	15

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
2025	Apr 9	no data	Apr 8	no data
2024	Mar 29	Oct 16	Mar 28	Oct 16
2023	Apr 24	Oct 28	Apr 24	Oct 28
2022	Apr 27	Oct 8	Apr 10	Oct 15
2021	no data	Oct 22	no data	Nov 3
2020	Apr 19	no data	Apr 15	no data
2019	Apr 14	Oct 12	Apr 1	Oct 31
2018	Apr 20	Oct 15	Apr 20	Oct 21
2017	Apr 8	Oct 28	Mar 16	Oct 28
2016	Apr 13	Nov 10	Apr 10	Nov 13
2015	Apr 23	Oct 30	Apr 5	Nov 22
2014	Apr 19	Oct 30	Apr 16	Nov 1
2013	Apr 25	Oct 13	Apr 25	Oct 24
2012	Mar 10	Sep 23	Mar 10	Oct 7
2011	Apr 6	Oct 19	Mar 29	Oct 21
2010	Mar 30	Oct 29	Mar 23	Oct 29
2009	no data	Oct 10	no data	Nov 4

"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.