Alamo 1 N, TN: frost dates by year

Last spring and first fall frost at NOAA station USC00400049, 2002 to 2025, measured from daily minimum temperatures.

Elevation 330 ft, 35.798, -89.118. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Mar 27	Nov 2
Earliest	Mar 3 (2012)	Oct 13 (2006)
Latest	Apr 17 (2018)	Nov 28 (2004)
Trend	2.3 days earlier per decade	0.9 days later per decade
Years with data	20	21

At 28°F (hard freeze) the median last spring date is Mar 20 and the median first fall date is Nov 13.

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	Mar 2	Nov 10
2024	Mar 20	Nov 23	Mar 20	Nov 29
2023	Mar 20	Oct 31	Mar 20	Nov 1
2019	Apr 15	Nov 1	Apr 1	Nov 1
2018	Apr 17	Nov 10	Apr 17	Nov 14
2017	Mar 17	Oct 29	Mar 16	Oct 29
2016	Mar 21	Nov 13	Mar 2	Nov 20
2015	Mar 29	Nov 22	Mar 29	Nov 22
2014	Apr 16	Nov 2	Mar 26	Nov 2
2013	Mar 28	Oct 25	Mar 27	Nov 13
2012	Mar 3	Nov 1	Feb 20	Nov 13
2011	no data	Oct 29	no data	Nov 11
2010	Mar 7	Oct 30	Mar 6	Nov 6
2009	Mar 13	Nov 27	Mar 4	Nov 27
2008	Apr 15	Oct 28	Mar 24	Nov 10
2007	Apr 8	Nov 7	Apr 8	Nov 7
2006	Mar 26	Oct 13	Mar 26	Nov 3
2005	Mar 14	Oct 26	Mar 14	Nov 17
2004	Apr 13	Nov 28	Mar 10	Dec 14
2003	Mar 31	Nov 14	Mar 11	Nov 25
2002	Apr 5	Nov 13	Mar 23	Nov 27

"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.