Troy 2 W, AL: frost dates by year

Last spring and first fall frost at NOAA station USW00023801, 2008 to 2024, measured from daily minimum temperatures.

Elevation 472 ft, 31.790, -86.000. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Mar 14	Nov 14
Earliest	Feb 13 (2012)	Oct 19 (2022)
Latest	Apr 8 (2009)	Nov 30 (2024)
Trend	9.6 days earlier per decade	1.7 days earlier per decade
Years with data	17	15

At 28°F (hard freeze) the median last spring date is Mar 7 and the median first fall date is Nov 27.

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	Feb 20	Nov 30	Feb 20	Nov 30
2023	Mar 21	Nov 1	Mar 21	Nov 29
2022	Mar 14	Oct 19	Mar 13	Nov 17
2021	Mar 8	no data	Feb 17	no data
2020	Feb 28	no data	Feb 28	no data
2019	Mar 7	Nov 12	Mar 7	Nov 12
2018	Mar 15	Nov 15	Mar 15	Nov 15
2017	Mar 16	Nov 20	Mar 16	Dec 10
2016	Mar 22	Nov 20	Feb 11	Dec 10
2015	Mar 8	Nov 23	Mar 7	Dec 19
2014	Mar 26	Nov 14	Mar 26	Nov 15
2013	Mar 28	Nov 13	Mar 27	Nov 27
2012	Feb 13	Nov 24	Feb 13	Nov 25
2011	Mar 12	Nov 11	Feb 13	Nov 30
2010	Mar 7	Nov 6	Mar 7	Nov 7
2009	Apr 8	Nov 27	Mar 3	Dec 5
2008	Mar 26	Oct 28	Mar 25	Nov 18

"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.