Last Frost Day

Frost history / Pleasant Mt 1 W, PA

Pleasant Mt 1 W, PA: frost dates by year

Last spring and first fall frost at NOAA station USC00367029, 1952 to 2025, measured from daily minimum temperatures.

Elevation 1,800 ft, 41.739, -75.446. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 16Sep 27
EarliestApr 21 (2025)Sep 7 (1962)
LatestJun 11 (1980)Oct 28 (2021)
Trend2.1 days earlier per decade3.4 days later per decade
Years with data6266

At 28°F (hard freeze) the median last spring date is May 7 and the median first fall date is Oct 9.

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)

Apr 15Apr 30May 15May 30Jun 14Jun 2919601970198019902000201020201952: May 171954: May 141955: May 201956: May 291957: May 171958: Jun 71959: May 251960: May 111962: May 121963: May 251964: Jun 51965: May 301966: May 311967: May 311968: May 91969: May 271970: May 81971: May 241972: Jun 111973: May 201975: May 61976: May 231977: May 161978: May 61980: Jun 111981: May 191982: May 51985: May 91986: Jun 31987: May 161988: May 121989: May 91990: May 121991: May 51992: May 201993: May 141995: May 91996: May 151997: May 271998: Apr 301999: May 22000: May 152001: Jun 12002: May 222003: May 152004: May 302005: May 172006: May 232007: May 222009: Jun 12010: May 132011: Apr 232012: May 12013: May 152014: May 72015: May 232016: May 172017: May 122022: May 92023: May 182024: Apr 272025: Apr 21

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 1119601970198019902000201020201952: Oct 41953: Sep 181954: Sep 241955: Sep 221956: Sep 101958: Oct 21959: Sep 171960: Oct 21961: Sep 181962: Sep 71963: Sep 141964: Sep 141965: Sep 271966: Sep 261967: Sep 241968: Oct 61969: Sep 211970: Oct 51971: Sep 251973: Sep 101974: Sep 241975: Sep 101976: Sep 231977: Sep 121978: Sep 261979: Sep 201980: Sep 271981: Sep 291982: Oct 31983: Sep 151984: Sep 171985: Oct 71986: Sep 171987: Oct 41988: Sep 161989: Sep 251990: Oct 201991: Sep 221992: Sep 241993: Sep 201994: Oct 31995: Sep 111996: Sep 241998: Sep 241999: Oct 62000: Sep 292001: Sep 302002: Oct 142003: Oct 32004: Oct 52005: Oct 202006: Oct 72007: Oct 132009: Oct 22010: Oct 102011: Oct 62012: Oct 132013: Sep 172014: Oct 52015: Oct 112016: Oct 112021: Oct 282022: Oct 92023: Oct 242024: Oct 172025: Oct 10

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 21Oct 10Apr 19Oct 10
2024Apr 27Oct 17Apr 26Oct 17
2023May 18Oct 24May 18Nov 1
2022May 9Oct 9May 1Oct 18
2021no dataOct 28no dataNov 3
2017May 12no dataMay 4no data
2016May 17Oct 11May 10Oct 11
2015May 23Oct 11May 23Oct 18
2014May 7Oct 5May 7Oct 5
2013May 15Sep 17May 14Oct 23
2012May 1Oct 13Apr 30Oct 13
2011Apr 23Oct 6Apr 22Oct 6
2010May 13Oct 10May 11Oct 23
2009Jun 1Oct 2May 19Oct 12
2007May 22Oct 13May 14Oct 29
2006May 23Oct 7Apr 30Oct 13
2005May 17Oct 20May 13Oct 24
2004May 30Oct 5Apr 28Oct 12
2003May 15Oct 3Apr 25Oct 3
2002May 22Oct 14May 21Oct 15
2001Jun 1Sep 30Apr 29Oct 8
2000May 15Sep 29May 3Sep 29
1999May 2Oct 6Apr 29Oct 7
1998Apr 30Sep 24Apr 29Nov 4
1997May 27no dataMay 8no data
1996May 15Sep 24May 14Oct 4
1995May 9Sep 11May 7Nov 5
1994no dataOct 3no dataOct 3
1993May 14Sep 20Apr 28Oct 1
1992May 20Sep 24May 7Oct 6
1991May 5Sep 22Apr 13Sep 29
1990May 12Oct 20Apr 19Oct 27
1989May 9Sep 25Apr 24Sep 25
1988May 12Sep 16Apr 26Oct 7
1987May 16Oct 4May 1Oct 9
1986Jun 3Sep 17May 4Oct 11
1985May 9Oct 7May 9Oct 12
1984no dataSep 17no dataOct 6
1983no dataSep 15no dataSep 25
1982May 5Oct 3May 1Oct 11
1981May 19Sep 29May 9Oct 10
1980Jun 11Sep 27Apr 18Oct 10
1979no dataSep 20no dataSep 20
1978May 6Sep 26May 5Sep 26
1977May 16Sep 12Apr 30Oct 18
1976May 23Sep 23May 14Sep 25
1975May 6Sep 10Apr 28Sep 15
1974no dataSep 24no dataSep 24
1973May 20Sep 10May 19Sep 21
1972Jun 11no dataMay 12no data
1971May 24Sep 25May 15Nov 4
1970May 8Oct 5May 8Oct 17
1969May 27Sep 21May 27Oct 16
1968May 9Oct 6May 8Oct 6
1967May 31Sep 24May 14Oct 7
1966May 31Sep 26May 11Oct 21
1965May 30Sep 27Apr 25Sep 28
1964Jun 5Sep 14May 3Sep 16
1963May 25Sep 14May 24Sep 14
1962May 12Sep 7May 11Sep 22
1961no dataSep 18no dataOct 23
1960May 11Oct 2Apr 20Oct 22
1959May 25Sep 17May 9Oct 19
1958Jun 7Oct 2May 10Oct 2
1957May 17no dataMay 17no data
1956May 29Sep 10May 25Oct 6
1955May 20Sep 22May 10Oct 23
1954May 14Sep 24May 7Oct 7
1953no dataSep 18no dataSep 24
1952May 17Oct 4May 5Oct 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.