Last Frost Day

Frost history / Forks 1 E, WA

Forks 1 E, WA: frost dates by year

Last spring and first fall frost at NOAA station USC00452914, 1951 to 2025, measured from daily minimum temperatures.

Elevation 350 ft, 47.956, -124.354. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 4Oct 25
EarliestMar 23 (1989)Sep 13 (1970)
LatestMay 31 (1991)Nov 22 (1965)
Trend3.4 days earlier per decade1.2 days later per decade
Years with data7474

At 28°F (hard freeze) the median last spring date is Mar 25 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 15May 30Jun 1419601970198019902000201020201951: May 21952: May 91953: May 311954: May 281955: May 231956: Apr 231957: Apr 201958: May 131959: May 111960: May 221961: May 241962: May 111963: May 161964: May 251965: May 71966: May 271967: May 101968: Apr 221969: May 41970: May 181971: May 211972: May 251973: Apr 201974: May 171975: May 201976: May 181977: May 121978: May 81979: Apr 161980: Apr 211981: May 51982: Apr 251983: Apr 151984: Apr 261985: May 121986: Apr 301987: Apr 251988: Apr 251989: Mar 231990: Apr 301991: May 311992: Apr 231993: Apr 191994: Mar 261995: Apr 161996: May 91997: Apr 111998: Apr 151999: May 102000: May 72001: May 62002: May 102003: May 62004: Apr 12005: Apr 202006: May 132007: May 142008: May 92010: May 72011: May 42012: May 112013: May 12014: Apr 262015: Apr 152016: Mar 292017: Apr 112018: Apr 232019: Apr 302020: Apr 142021: Apr 142022: Apr 282023: Apr 202024: May 22025: Apr 23

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11Nov 26Dec 1119601970198019902000201020201951: Oct 161952: Nov 11953: Nov 31954: Oct 21955: Oct 201956: Oct 231957: Oct 41958: Oct 231959: Oct 291960: Oct 291961: Sep 291962: Nov 161963: Oct 271964: Oct 261965: Nov 221966: Oct 131967: Nov 31968: Oct 261969: Oct 111970: Sep 131971: Oct 161972: Sep 251973: Nov 11974: Oct 221975: Oct 231976: Oct 181978: Oct 251979: Oct 311980: Oct 161981: Oct 111982: Oct 181983: Sep 281984: Oct 151985: Oct 71986: Nov 101987: Nov 161988: Oct 271989: Oct 151990: Nov 61991: Oct 271992: Oct 151993: Nov 71994: Nov 21995: Oct 311996: Oct 201997: Nov 121998: Nov 71999: Oct 272000: Nov 92001: Oct 282002: Oct 122003: Oct 312004: Nov 42005: Nov 152006: Oct 302007: Oct 262008: Oct 102009: Oct 112010: Oct 162011: Oct 162012: Oct 252013: Oct 292014: Nov 112015: Nov 102016: Oct 112017: Nov 32018: Nov 72019: Oct 92020: Oct 222021: Oct 312022: Oct 232023: Oct 252024: Nov 192025: Oct 14

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 23Oct 14Mar 6none
2024May 2Nov 19Apr 18Nov 28
2023Apr 20Oct 25Apr 5Oct 27
2022Apr 28Oct 23Apr 13Nov 7
2021Apr 14Oct 31Apr 12Dec 3
2020Apr 14Oct 22Apr 12Nov 8
2019Apr 30Oct 9Mar 11Oct 10
2018Apr 23Nov 7Mar 25Nov 11
2017Apr 11Nov 3Feb 27Nov 6
2016Mar 29Oct 11Mar 17Dec 6
2015Apr 15Nov 10Mar 4Nov 20
2014Apr 26Nov 11Mar 22Nov 13
2013May 1Oct 29Mar 9Nov 20
2012May 11Oct 25Apr 7Nov 9
2011May 4Oct 16Apr 20Nov 4
2010May 7Oct 16Mar 18Nov 21
2009no dataOct 11no dataNov 14
2008May 9Oct 10Apr 22Nov 26
2007May 14Oct 26Apr 3Nov 20
2006May 13Oct 30Mar 20Oct 30
2005Apr 20Nov 15Feb 23Nov 28
2004Apr 1Nov 4Feb 10Nov 28
2003May 6Oct 31Feb 27Nov 1
2002May 10Oct 12Mar 18Oct 30
2001May 6Oct 28Apr 14Dec 25
2000May 7Nov 9Feb 19Nov 11
1999May 10Oct 27Apr 2none
1998Apr 15Nov 7Mar 29Dec 18
1997Apr 11Nov 12Apr 4none
1996May 9Oct 20Mar 28Oct 30
1995Apr 16Oct 31Mar 5Oct 31
1994Mar 26Nov 2Mar 25Nov 5
1993Apr 19Nov 7Mar 26Nov 22
1992Apr 23Oct 15Mar 28Oct 15
1991May 31Oct 27Mar 27Oct 30
1990Apr 30Nov 6Mar 12Dec 13
1989Mar 23Oct 15Mar 4Dec 11
1988Apr 25Oct 27Mar 16Dec 14
1987Apr 25Nov 16Feb 25Nov 17
1986Apr 30Nov 10Feb 21Dec 2
1985May 12Oct 7Apr 26Oct 8
1984Apr 26Oct 15Jan 20Oct 31
1983Apr 15Sep 28Feb 4Nov 29
1982Apr 25Oct 18Apr 9Nov 9
1981May 5Oct 11Feb 11Nov 27
1980Apr 21Oct 16Mar 6Dec 6
1979Apr 16Oct 31Mar 31Nov 12
1978May 8Oct 25Mar 3Nov 10
1977May 12no dataMar 30no data
1976May 18Oct 18Mar 11Nov 26
1975May 20Oct 23Apr 14Nov 18
1974May 17Oct 22Mar 20Dec 22
1973Apr 20Nov 1Feb 12Nov 1
1972May 25Sep 25Apr 17Sep 27
1971May 21Oct 16Mar 25Oct 28
1970May 18Sep 13Apr 26Oct 26
1969May 4Oct 11Mar 23Dec 10
1968Apr 22Oct 26Apr 12Nov 30
1967May 10Nov 3Apr 17Dec 13
1966May 27Oct 13Apr 18Nov 8
1965May 7Nov 22Apr 3Nov 23
1964May 25Oct 26Apr 18Oct 27
1963May 16Oct 27Apr 1Nov 20
1962May 11Nov 16Mar 23Nov 28
1961May 24Sep 29Apr 20Nov 2
1960May 22Oct 29Mar 13Dec 5
1959May 11Oct 29Feb 12Nov 4
1958May 13Oct 23Mar 14Nov 15
1957Apr 20Oct 4Mar 25Nov 21
1956Apr 23Oct 23Mar 12Oct 28
1955May 23Oct 20Apr 25Nov 1
1954May 28Oct 2May 1Nov 29
1953May 31Nov 3Apr 2none
1952May 9Nov 1Apr 29Nov 22
1951May 2Oct 16Apr 21Nov 1

"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.