Wartrace 6E, TN: frost dates by year

Last spring and first fall frost at NOAA station USC00409434, 2001 to 2016, measured from daily minimum temperatures.

Elevation 1,014 ft, 35.539, -86.228. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 5	Nov 2
Earliest	Mar 10 (2012)	Oct 13 (2006)
Latest	Apr 24 (2005)	Nov 26 (2004)
Trend	5.1 days earlier per decade	6.2 days later per decade
Years with data	15	15

At 28°F (hard freeze) the median last spring date is Mar 24 and the median first fall date is Nov 18.

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
2016	Mar 22	Nov 21	Feb 28	Nov 22
2015	Mar 30	Nov 22	Mar 30	Nov 23
2014	Apr 17	Nov 2	Mar 27	Nov 2
2013	Apr 21	Oct 25	Mar 28	Oct 25
2012	Mar 10	Nov 1	Mar 6	Nov 24
2011	Mar 26	Nov 11	Feb 27	Nov 18
2010	Mar 28	Nov 6	Mar 6	Nov 6
2009	Apr 8	Oct 18	Mar 4	Dec 1
2008	Apr 16	Oct 29	Mar 25	Oct 29
2007	Apr 9	Nov 7	Apr 9	Nov 7
2006	Apr 10	Oct 13	Mar 26	Nov 3
2005	Apr 24	Nov 11	Mar 11	Nov 17
2004	Mar 24	Nov 26	Mar 23	Dec 2
2003	Apr 1	no data	Apr 1	no data
2002	Apr 5	Nov 2	Mar 24	Nov 18
2001	no data	Oct 27	no data	Nov 21

"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.