Haw Rvr 1E, NC: frost dates by year

Last spring and first fall frost at NOAA station USC00313919, 2002 to 2023, measured from daily minimum temperatures.

Elevation 636 ft, 36.064, -79.369. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 4	Nov 3
Earliest	Mar 7 (2012)	Oct 19 (2015)
Latest	Apr 24 (2021)	Nov 13 (2016)
Trend	7.2 days later per decade	1.0 days earlier per decade
Years with data	12	11

At 28°F (hard freeze) the median last spring date is Mar 25 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
2023	Mar 22	no data	Mar 22	no data
2022	Apr 20	no data	Mar 29	no data
2021	Apr 24	Nov 5	Apr 4	Nov 14
2018	Apr 9	Oct 22	Mar 16	Nov 11
2017	Mar 24	Nov 11	Mar 17	Nov 11
2016	Apr 11	Nov 13	Apr 11	Nov 13
2015	Mar 30	Oct 19	Mar 30	Nov 23
2014	Apr 18	Nov 3	Mar 28	Nov 3
2013	Mar 30	Oct 26	Mar 23	Oct 26
2012	Mar 7	Nov 8	Mar 7	Nov 25
2011	no data	Oct 30	no data	Nov 12
2010	Mar 14	no data	Mar 13	no data
2009	no data	Nov 12	no data	Dec 11
2008	no data	Oct 30	no data	Nov 19
2002	Apr 8	no data	Apr 8	no data

"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.