Last Frost Day

Frost history / Linesville 1 S, PA

Linesville 1 S, PA: frost dates by year

Last spring and first fall frost at NOAA station USC00365050, 1953 to 2020, measured from daily minimum temperatures.

Elevation 1,030 ft, 41.646, -80.425. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 4Oct 14
EarliestApr 17 (1985)Sep 4 (1997)
LatestJun 7 (1958)Nov 10 (2004)
Trend2.1 days earlier per decade4.7 days later per decade
Years with data4341

At 28°F (hard freeze) the median last spring date is Apr 18 and the median first fall date is Nov 4.

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 31Apr 15Apr 30May 15May 30Jun 1419601970198019902000201020201953: Apr 241954: May 231955: May 181956: May 251957: May 171958: Jun 71984: May 171985: Apr 171986: May 41987: May 11988: May 261989: May 81990: Apr 191991: Apr 181992: Apr 291993: Apr 281994: May 131995: Apr 251996: May 141997: May 71998: Apr 281999: Apr 262000: Apr 282001: Apr 292002: May 222003: Apr 272004: May 42005: May 52006: May 232007: Apr 212008: Apr 302009: May 182010: May 112011: Apr 302012: Apr 292013: May 252014: May 52015: Apr 262016: Apr 242017: May 92018: May 12019: Apr 292020: May 13

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11Nov 2619601970198019902000201020201953: Sep 141954: Sep 231955: Oct 21956: Sep 281957: Sep 271958: Oct 21984: Nov 31985: Oct 261986: Oct 101987: Oct 41988: Oct 41989: Sep 251990: Oct 201992: Oct 181993: Oct 111994: Oct 111995: Oct 171996: Oct 121997: Sep 41998: Oct 301999: Oct 72000: Sep 292001: Oct 82003: Oct 32004: Nov 102005: Oct 292006: Oct 302007: Oct 292008: Oct 192009: Oct 142010: Nov 12011: Oct 282012: Oct 92013: Oct 242014: Oct 122015: Oct 192016: Oct 262017: Nov 12018: Oct 192019: Nov 22020: Nov 2

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
2020May 13Nov 2May 13Nov 18
2019Apr 29Nov 2Apr 2Nov 8
2018May 1Oct 19Apr 30Nov 10
2017May 9Nov 1Apr 8Nov 8
2016Apr 24Oct 26Apr 13Nov 12
2015Apr 26Oct 19Apr 5Nov 9
2014May 5Oct 12Apr 24Nov 14
2013May 25Oct 24Apr 22Nov 4
2012Apr 29Oct 9Apr 29Oct 15
2011Apr 30Oct 28Apr 3Oct 30
2010May 11Nov 1May 11Nov 1
2009May 18Oct 14Apr 13Oct 18
2008Apr 30Oct 19Apr 16Oct 19
2007Apr 21Oct 29Apr 15Nov 3
2006May 23Oct 30Apr 26Nov 3
2005May 5Oct 29Apr 5Nov 17
2004May 4Nov 10Apr 7Nov 13
2003Apr 27Oct 3Apr 24Nov 9
2002May 22no dataApr 8no data
2001Apr 29Oct 8Apr 19Nov 6
2000Apr 28Sep 29Apr 13Oct 29
1999Apr 26Oct 7Apr 25Nov 17
1998Apr 28Oct 30Apr 12Nov 4
1997May 7Sep 4Apr 20Nov 12
1996May 14Oct 12Apr 11Nov 11
1995Apr 25Oct 17Apr 17Nov 4
1994May 13Oct 11May 3Nov 11
1993Apr 28Oct 11Apr 28Nov 2
1992Apr 29Oct 18Apr 14Nov 8
1991Apr 18no dataApr 4no data
1990Apr 19Oct 20Apr 18Nov 14
1989May 8Sep 25May 7Oct 19
1988May 26Oct 4Apr 26Oct 13
1987May 1Oct 4Apr 4Oct 26
1986May 4Oct 10Apr 24Nov 13
1985Apr 17Oct 26Apr 11Oct 29
1984May 17Nov 3Apr 11Nov 3
1958Jun 7Oct 2May 24Oct 2
1957May 17Sep 27May 17Sep 27
1956May 25Sep 28May 25Oct 11
1955May 18Oct 2May 9Oct 22
1954May 23Sep 23Apr 9Oct 7
1953Apr 24Sep 14Apr 21Oct 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.