Ozark 2, AR: frost dates by year

Last spring and first fall frost at NOAA station USC00035512, 1994 to 2025, measured from daily minimum temperatures.

Elevation 830 ft, 35.513, -93.868. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Mar 27	Nov 7
Earliest	Feb 25 (2025)	Oct 12 (2019)
Latest	Apr 22 (2021)	Nov 26 (2024)
Trend	1.6 days later per decade	little change (less than half a day per decade)
Years with data	27	29

At 28°F (hard freeze) the median last spring date is Mar 14 and the median first fall date is Nov 19.

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	Feb 25	no data	Feb 24	no data
2024	Mar 28	Nov 26	Mar 20	Nov 29
2023	Mar 21	Oct 31	Mar 21	Oct 31
2022	Apr 10	Oct 19	Mar 13	Oct 20
2021	Apr 22	Nov 13	Apr 22	Nov 19
2020	Apr 16	Nov 23	Feb 28	Dec 1
2019	Apr 1	Oct 12	Mar 7	Nov 1
2018	Apr 17	Nov 10	Apr 8	Nov 10
2017	Mar 16	Oct 28	Feb 26	Oct 29
2016	Mar 22	Nov 19	Mar 22	Nov 20
2015	Mar 7	Nov 22	Mar 7	Nov 22
2014	Apr 16	Nov 1	Mar 6	Nov 2
2013	Mar 28	Nov 7	Mar 27	Nov 13
2012	Mar 4	Oct 28	Feb 25	Nov 14
2011	Apr 6	Oct 20	Mar 7	Nov 30
2010	Mar 21	Nov 6	Mar 5	Nov 7
2009	Apr 8	Nov 26	Mar 4	Dec 3
2008	no data	Oct 28	no data	Oct 28
2007	Apr 15	Nov 7	Apr 9	Nov 23
2006	Mar 26	Nov 2	Mar 26	Dec 1
2005	Mar 28	Nov 16	Mar 18	Nov 16
2004	no data	Nov 25	no data	Dec 1
2001	Mar 27	Nov 20	Mar 17	Nov 25
2000	Mar 21	Nov 10	Mar 13	Nov 10
1999	Mar 16	Nov 3	Mar 16	Dec 6
1998	Mar 22	Nov 11	Mar 14	Dec 9
1997	Apr 14	Nov 15	Mar 16	Nov 15
1996	Mar 27	Oct 31	Mar 27	Nov 26
1995	Mar 10	Nov 3	Mar 10	Nov 4
1994	no data	Oct 26	no data	Nov 30

"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.