Lebanon 7 N, TN: frost dates by year

Last spring and first fall frost at NOAA station USC00405118, 2004 to 2025, measured from daily minimum temperatures.

Elevation 510 ft, 36.298, -86.263. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 5	Nov 3
Earliest	Mar 8 (2010)	Oct 19 (2022)
Latest	Apr 24 (2023)	Nov 26 (2004)
Trend	7.2 days later per decade	1.9 days earlier per decade
Years with data	14	13

At 28°F (hard freeze) the median last spring date is Mar 19 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	Apr 10	Nov 10	Mar 22	Nov 28
2024	Apr 7	Nov 23	Mar 27	Nov 23
2023	Apr 24	Oct 31	Apr 24	Nov 2
2022	Apr 10	Oct 19	Mar 14	Nov 14
2019	Apr 3	no data	Mar 20	no data
2017	Mar 20	Oct 30	Mar 17	Nov 20
2016	no data	Nov 10	no data	Nov 21
2013	Mar 29	no data	Mar 29	no data
2012	Apr 12	Nov 1	Mar 5	Nov 1
2011	no data	Oct 29	no data	Nov 11
2010	Mar 8	no data	Mar 8	no data
2009	Apr 1	no data	Mar 5	no data
2008	Apr 15	Oct 28	Mar 26	Nov 19
2007	Apr 11	Nov 7	Apr 9	Nov 7
2006	Mar 27	Nov 3	Mar 4	Nov 21
2005	Mar 19	Nov 11	Mar 10	Nov 18
2004	no data	Nov 26	no data	Dec 15

"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.