Linneus 3SE, MO: frost dates by year

Last spring and first fall frost at NOAA station USC00234982, 2005 to 2023, measured from daily minimum temperatures.

Elevation 814 ft, 39.857, -93.150. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 14	Oct 23
Earliest	Apr 4 (2015)	Oct 6 (2012)
Latest	May 17 (2014)	Nov 13 (2016)
Trend	2.7 days later per decade	1.1 days earlier per decade
Years with data	17	17

At 28°F (hard freeze) the median last spring date is Apr 9 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	Apr 24	no data	Apr 7	no data
2022	Apr 26	Oct 8	Apr 19	Oct 8
2021	no data	Nov 2	no data	Nov 3
2020	Apr 19	Oct 16	Apr 16	Oct 30
2019	Apr 14	Oct 12	Apr 1	Oct 31
2018	Apr 20	Oct 15	Apr 17	Oct 16
2017	Apr 7	Oct 28	Mar 16	Oct 29
2016	Apr 13	Nov 13	Apr 10	Nov 19
2015	Apr 4	no data	Mar 28	no data
2014	May 17	Oct 31	Apr 15	Nov 1
2013	May 3	Oct 23	Apr 20	Oct 23
2012	Apr 11	Oct 6	Mar 6	Oct 7
2011	May 4	Oct 21	Apr 5	Oct 21
2010	Apr 9	Oct 29	Mar 22	Oct 29
2009	Apr 9	Oct 10	Apr 8	Oct 10
2008	Apr 29	Oct 27	Apr 29	Oct 28
2007	Apr 14	Oct 28	Apr 13	Nov 1
2006	Apr 9	Oct 12	Apr 9	Oct 12
2005	no data	Oct 26	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 to 2020 frost probabilities.