Calion L&D, AR: frost dates by year

Last spring and first fall frost at NOAA station USC00031140, 1986 to 2025, measured from daily minimum temperatures.

Elevation 77 ft, 33.306, -92.483. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Mar 19	Nov 4
Earliest	Feb 28 (2020)	Oct 9 (2000)
Latest	Apr 11 (2003)	Dec 1 (2020)
Trend	1.7 days earlier per decade	little change (less than half a day per decade)
Years with data	32	32

At 28°F (hard freeze) the median last spring date is Mar 4 and the median first fall date is Nov 15.

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	Mar 22	Nov 10	Feb 22	Nov 10
2024	Mar 20	Nov 23	Feb 20	Nov 30
2023	Mar 21	Nov 2	Mar 21	Dec 11
2022	Mar 14	Oct 19	Mar 14	Oct 19
2021	Mar 4	Nov 5	Feb 21	none
2020	Feb 28	Dec 1	Feb 28	Dec 1
2019	Apr 3	Nov 1	Mar 7	Nov 9
2018	Mar 15	Nov 11	Feb 9	Nov 15
2017	no data	Oct 30	no data	Oct 30
2016	Mar 22	no data	Feb 27	no data
2015	Mar 8	Nov 23	Mar 8	Nov 23
2014	Mar 27	Nov 2	Mar 8	Nov 14
2013	Mar 28	Nov 13	Mar 28	Nov 13
2012	Mar 4	Oct 29	Feb 26	Nov 13
2011	Mar 12	no data	Mar 11	no data
2010	Mar 22	Oct 30	Mar 5	Nov 6
2009	Mar 4	no data	Mar 3	no data
2008	Mar 25	Oct 28	Mar 9	Nov 16
2006	Mar 26	Oct 23	Feb 21	Nov 3
2005	Mar 19	no data	Feb 26	no data
2004	no data	Nov 25	no data	Dec 1
2003	Apr 11	Nov 24	Feb 26	Nov 24
2002	no data	Nov 12	no data	Nov 28
2001	Mar 11	Oct 28	Feb 11	Nov 21
2000	Mar 14	Oct 9	Mar 13	Nov 14
1999	Mar 17	Oct 24	Feb 25	Nov 3
1998	Mar 13	Nov 6	Mar 13	Dec 15
1996	Apr 8	Nov 27	Mar 12	Dec 18
1995	Mar 11	Nov 4	Feb 13	Nov 4
1994	Apr 2	Dec 1	Feb 26	Dec 12
1993	Mar 16	Oct 31	Mar 15	Oct 31
1992	Apr 4	Nov 6	Feb 11	Nov 29
1991	no data	Nov 2	no data	Nov 4
1989	Mar 9	Oct 20	Mar 9	Nov 17
1988	Mar 20	Nov 17	Mar 16	Nov 23
1986	Mar 23	Nov 13	Mar 22	Nov 13

"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.