Last Frost Day

Frost history / Ford City 4 S Dam, PA

Ford City 4 S Dam, PA: frost dates by year

Last spring and first fall frost at NOAA station USC00362942, 1951 to 2025, measured from daily minimum temperatures.

Elevation 930 ft, 40.715, -79.513. Download the data (JSON) · NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 8Oct 13
EarliestApr 17 (1991)Sep 17 (1959)
LatestJul 4 (1986)Nov 5 (1971)
Trendlittle change (less than half a day per decade)2.0 days later per decade
Years with data6462

At 28°F (hard freeze) the median last spring date is Apr 27 and the median first fall date is Oct 23.

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 14Jun 29Jul 1419601970198019902000201020201951: May 141952: May 41953: Apr 241954: May 51955: May 181956: May 251957: May 71958: May 101959: May 91960: May 21961: May 301962: May 101963: May 251964: Apr 251965: Apr 291966: May 121968: May 81969: May 21970: May 81971: May 51972: May 121973: May 161974: May 111975: Apr 271976: May 141977: May 111978: May 41979: May 51982: May 41983: May 171984: May 261985: May 251986: Jul 41987: May 161991: Apr 171992: Apr 291993: Apr 271994: May 121995: Apr 261998: Apr 272000: Apr 272001: Apr 292002: May 212003: Apr 262005: May 62006: May 242008: May 52009: May 202010: May 112011: May 62012: Apr 302013: May 252014: May 62015: May 232016: May 172017: May 102018: May 22019: Apr 302020: May 142021: May 142022: May 12023: May 182024: Apr 272025: Apr 28

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 1119601970198019902000201020201951: Sep 301952: Oct 41953: Oct 81954: Oct 71955: Oct 221956: Sep 211957: Sep 271959: Sep 171960: Oct 221961: Oct 41962: Oct 191963: Sep 241964: Oct 61965: Oct 51966: Oct 31967: Oct 131968: Oct 61969: Oct 151970: Oct 171971: Nov 51972: Oct 101973: Oct 191974: Sep 241975: Oct 31976: Oct 121977: Oct 141978: Oct 181979: Oct 111980: Oct 141981: Sep 241982: Oct 181983: Sep 231984: Nov 31985: Oct 71990: Oct 201993: Sep 301997: Oct 161998: Oct 231999: Oct 62000: Oct 72001: Oct 72002: Oct 142003: Oct 22005: Oct 292006: Oct 132008: Oct 72009: Oct 142010: Oct 142011: Oct 232012: Oct 112013: Oct 242014: Oct 122015: Oct 192016: Oct 262017: Oct 282018: Oct 192019: Oct 132020: Oct 172021: Nov 32022: Oct 92023: Oct 232024: Oct 18

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 28no dataApr 18no data
2024Apr 27Oct 18Apr 23Oct 27
2023May 18Oct 23Apr 19Nov 2
2022May 1Oct 9Apr 30Oct 21
2021May 14Nov 3Apr 27Nov 3
2020May 14Oct 17May 9Nov 2
2019Apr 30Oct 13Apr 4Nov 2
2018May 2Oct 19May 1Oct 20
2017May 10Oct 28Apr 10Nov 1
2016May 17Oct 26Apr 15Nov 12
2015May 23Oct 19Apr 25Oct 19
2014May 6Oct 12Apr 25Oct 28
2013May 25Oct 24May 15Oct 26
2012Apr 30Oct 11Apr 30Oct 13
2011May 6Oct 23Apr 7Nov 5
2010May 11Oct 14Apr 30Oct 23
2009May 20Oct 14Apr 14Oct 19
2008May 5Oct 7Apr 17Oct 19
2006May 24Oct 13Apr 11Oct 15
2005May 6Oct 29May 6Oct 29
2003Apr 26Oct 2Apr 12Nov 8
2002May 21Oct 14May 3Nov 18
2001Apr 29Oct 7Apr 28Oct 7
2000Apr 27Oct 7Apr 27Oct 27
1999no dataOct 6no dataOct 26
1998Apr 27Oct 23Apr 11Nov 2
1997no dataOct 16no dataOct 22
1995Apr 26no dataApr 15no data
1994May 12no dataApr 22no data
1993Apr 27Sep 30Apr 26Oct 10
1992Apr 29no dataApr 13no data
1991Apr 17no dataApr 11no data
1990no dataOct 20no dataOct 26
1987May 16no dataApr 11no data
1986Jul 4no dataMay 4no data
1985May 25Oct 7May 7Oct 7
1984May 26Nov 3May 16Nov 3
1983May 17Sep 23May 12Oct 30
1982May 4Oct 18Apr 29Oct 18
1981no dataSep 24no dataOct 17
1980no dataOct 14no dataOct 23
1979May 5Oct 11May 2Oct 27
1978May 4Oct 18May 3Oct 25
1977May 11Oct 14Apr 30Nov 13
1976May 14Oct 12May 9Oct 18
1975Apr 27Oct 3Apr 23Oct 31
1974May 11Sep 24May 8Oct 4
1973May 16Oct 19May 6Nov 4
1972May 12Oct 10Apr 27Oct 18
1971May 5Nov 5May 2Nov 5
1970May 8Oct 17May 8Nov 23
1969May 2Oct 15Apr 20Oct 18
1968May 8Oct 6May 7Oct 31
1967no dataOct 13no dataOct 20
1966May 12Oct 3May 12Oct 21
1965Apr 29Oct 5Apr 14Oct 5
1964Apr 25Oct 6Apr 16Oct 6
1963May 25Sep 24May 2Oct 14
1962May 10Oct 19Apr 21Oct 25
1961May 30Oct 4May 5Nov 9
1960May 2Oct 22Apr 19Oct 26
1959May 9Sep 17Apr 22Oct 19
1958May 10no dataApr 30no data
1957May 7Sep 27May 6Sep 27
1956May 25Sep 21May 24Oct 11
1955May 18Oct 22Apr 8Oct 23
1954May 5Oct 7Apr 13Oct 7
1953Apr 24Oct 8Apr 22Oct 8
1952May 4Oct 4May 3Oct 4
1951May 14Sep 30Apr 24Oct 13

"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 1991–2020 frost probabilities.