Last Frost Day

Frost history / Hofmann Forest, NC

Hofmann Forest, NC: frost dates by year

Last spring and first fall frost at NOAA station USC00314144, 1981 to 2010, measured from daily minimum temperatures.

Elevation 47 ft, 34.836, -77.303. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 11Oct 29
EarliestMar 16 (1991)Oct 10 (2000)
LatestMay 11 (1986)Dec 3 (1985)
Trend0.9 days later per decade2.4 days earlier per decade
Years with data2727

At 28°F (hard freeze) the median last spring date is Mar 18 and the median first fall date is Nov 16.

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 15May 301990200020101982: Apr 81983: Apr 221984: Apr 21985: Apr 111986: May 111987: Apr 291988: Mar 221989: Apr 121990: Apr 91991: Mar 161992: Apr 61993: Mar 191994: Apr 21995: Apr 31996: Apr 121997: Apr 191998: Apr 131999: Mar 282000: Mar 242001: Apr 272002: Mar 242003: Apr 12004: Apr 162006: Apr 112008: Apr 172009: Apr 172010: Apr 29

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 11Nov 26Dec 111990200020101981: Oct 201982: Oct 161983: Nov 61984: Nov 81985: Dec 31986: Oct 211987: Nov 71988: Oct 141989: Nov 181990: Oct 291991: Nov 61992: Oct 201993: Oct 121994: Oct 281995: Nov 51996: Nov 31997: Oct 241999: Nov 42000: Oct 102001: Oct 282002: Nov 22003: Nov 142005: Oct 302007: Oct 302008: Oct 202009: Oct 192010: Oct 23

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
2010Apr 29Oct 23Mar 17Nov 7
2009Apr 17Oct 19Apr 17Nov 7
2008Apr 17Oct 20Apr 17Oct 30
2007no dataOct 30no dataNov 4
2006Apr 11no dataMar 27no data
2005no dataOct 30no dataNov 18
2004Apr 16no dataApr 5no data
2003Apr 1Nov 14Feb 19Nov 30
2002Mar 24Nov 2Mar 23Nov 28
2001Apr 27Oct 28Apr 19Oct 29
2000Mar 24Oct 10Feb 22Nov 16
1999Mar 28Nov 4Mar 16Nov 4
1998Apr 13no dataMar 14no data
1997Apr 19Oct 24Apr 11Nov 17
1996Apr 12Nov 3Apr 11Nov 3
1995Apr 3Nov 5Mar 11Nov 5
1994Apr 2Oct 28Mar 18Nov 3
1993Mar 19Oct 12Mar 16Nov 2
1992Apr 6Oct 20Apr 6Nov 15
1991Mar 16Nov 6Mar 12Nov 25
1990Apr 9Oct 29Feb 27Nov 19
1989Apr 12Nov 18Feb 26Nov 24
1988Mar 22Oct 14Mar 17Dec 5
1987Apr 29Nov 7Apr 2Nov 22
1986May 11Oct 21Mar 23Nov 14
1985Apr 11Dec 3Apr 10Dec 4
1984Apr 2Nov 8Mar 10Dec 7
1983Apr 22Nov 6Mar 26Dec 8
1982Apr 8Oct 16Feb 23Nov 16
1981no dataOct 20no dataNov 8

"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.