Last Frost Day

Frost history / Williamson, WV

Williamson, WV: frost dates by year

Last spring and first fall frost at NOAA station USC00469610, 1993 to 2025, measured from daily minimum temperatures.

Elevation 760 ft, 37.673, -82.276. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 10Nov 3
EarliestMar 23 (2005)Oct 13 (2006)
LatestApr 26 (2023)Nov 22 (2024)
Trend5.4 days later per decade1.4 days later per decade
Years with data1318

At 28°F (hard freeze) the median last spring date is Mar 22 and the median first fall date is Nov 14.

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 16Mar 31Apr 15Apr 30May 152000201020201996: Apr 122004: Apr 62005: Mar 232006: Apr 102008: Apr 172009: Apr 82010: Mar 282011: Apr 72021: Apr 242022: Apr 212023: Apr 262024: Apr 82025: Apr 14

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 11Nov 26Dec 112000201020201993: Nov 21995: Nov 42003: Nov 82004: Nov 92005: Nov 112006: Oct 132007: Oct 302008: Oct 222009: Nov 42010: Oct 302011: Nov 32012: Nov 32013: Oct 262021: Nov 52022: Oct 202023: Nov 12024: Nov 222025: Nov 11

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
2025Apr 14Nov 11Mar 8Nov 11
2024Apr 8Nov 22Mar 25Nov 30
2023Apr 26Nov 1Mar 22Nov 2
2022Apr 21Oct 20Apr 3Nov 18
2021Apr 24Nov 5Apr 4Nov 20
2013no dataOct 26no dataOct 26
2012no dataNov 3no dataNov 14
2011Apr 7Nov 3Feb 21Nov 18
2010Mar 28Oct 30Mar 8Nov 7
2009Apr 8Nov 4Mar 22Nov 28
2008Apr 17Oct 22Mar 27Oct 30
2007no dataOct 30no dataNov 17
2006Apr 10Oct 13Mar 27Nov 3
2005Mar 23Nov 11Mar 19Nov 17
2004Apr 6Nov 9Mar 22Nov 26
2003no dataNov 8no dataNov 13
1996Apr 12no dataMar 27no data
1995no dataNov 4no dataNov 5
1993no dataNov 2no 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.