Last Frost Day

Frost history / Burlington Alamance Ap, NC

Burlington Alamance Ap, NC: frost dates by year

Last spring and first fall frost at NOAA station USW00093783, 1998 to 2024, measured from daily minimum temperatures.

Elevation 617 ft, 36.047, -79.477. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 8Nov 1
EarliestMar 18 (2000)Oct 9 (2001)
LatestMay 10 (2020)Nov 17 (2024)
Trend7.5 days later per decade4.6 days later per decade
Years with data2627

At 28°F (hard freeze) the median last spring date is Mar 17 and the median first fall date is Nov 12.

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)

Mar 1Mar 16Mar 31Apr 15Apr 30May 152000201020201999: Mar 282000: Mar 182001: Apr 192002: Apr 72003: Apr 12004: Apr 62005: Mar 192006: Apr 102007: Apr 102008: Apr 162009: Apr 82010: Mar 272011: Apr 62012: Apr 122013: Mar 292014: Apr 172015: Apr 52016: Apr 102017: Mar 232018: Apr 82019: Apr 32020: May 102021: Apr 232022: Apr 202023: Apr 112024: Apr 23

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 11Nov 262000201020201998: Oct 231999: Nov 32000: Oct 102001: Oct 92002: Nov 12003: Nov 102004: Nov 62005: Oct 272006: Oct 142007: Oct 302008: Oct 202009: Oct 202010: Nov 72011: Oct 302012: Nov 62013: Oct 252014: Nov 32015: Oct 182016: Nov 82017: Nov 112018: Oct 222019: Nov 42020: Nov 32021: Nov 52022: Oct 192023: Nov 12024: Nov 17

Dots are single years. The gray line is the median, the green line the fitted trend.

Year by year

YearLast spring 32°FFirst fall 32°FLast spring 28°FFirst fall 28°F
2024Apr 23Nov 17Feb 25Nov 22
2023Apr 11Nov 1Mar 21Nov 1
2022Apr 20Oct 19Mar 14Nov 17
2021Apr 23Nov 5Apr 3Nov 14
2020May 10Nov 3Mar 8Dec 3
2019Apr 3Nov 4Mar 7Nov 9
2018Apr 8Oct 22Mar 15Nov 11
2017Mar 23Nov 11Mar 17Nov 12
2016Apr 10Nov 8Apr 10Nov 13
2015Apr 5Oct 18Mar 29Nov 23
2014Apr 17Nov 3Mar 27Nov 3
2013Mar 29Oct 25Mar 22Oct 26
2012Apr 12Nov 6Mar 6Nov 23
2011Apr 6Oct 30Mar 29Nov 12
2010Mar 27Nov 7Mar 7Nov 13
2009Apr 8Oct 20Mar 5Dec 1
2008Apr 16Oct 20Mar 10Oct 30
2007Apr 10Oct 30Mar 19Nov 11
2006Apr 10Oct 14Mar 8Nov 3
2005Mar 19Oct 27Mar 19Oct 30
2004Apr 6Nov 6Mar 24Nov 10
2003Apr 1Nov 10Mar 11Nov 14
2002Apr 7Nov 1Mar 24Nov 19
2001Apr 19Oct 9Mar 28Oct 29
2000Mar 18Oct 10Mar 14Nov 15
1999Mar 28Nov 3Mar 16Nov 4
1998no dataOct 23no dataNov 7

"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.