Last Frost Day

Frost history / Quillayute State Ap, WA

Quillayute State Ap, WA: frost dates by year

Last spring and first fall frost at NOAA station USW00094240, 1966 to 2024, measured from daily minimum temperatures.

Elevation 185 ft, 47.938, -124.555. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 24Oct 21
EarliestMar 7 (2024)Sep 13 (1970)
LatestMay 25 (1972)Dec 4 (2016)
Trend4.8 days earlier per decade3.8 days later per decade
Years with data5859

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

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 1Mar 16Mar 31Apr 15Apr 30May 15May 301970198019902000201020201967: Apr 201968: Apr 211969: May 41970: May 111971: Apr 211972: May 251973: May 211974: May 171975: May 201976: May 181977: May 121978: May 61979: Apr 191980: May 31981: Apr 261982: May 151983: Apr 171984: Apr 271985: Apr 291986: May 61987: Apr 251988: Apr 91989: Apr 171990: Apr 51991: Apr 151992: Apr 81993: Mar 281994: Mar 261995: Mar 261996: Mar 281997: Apr 241998: Apr 151999: May 92000: May 72001: May 62002: May 162003: Apr 42004: Apr 92005: Mar 142006: May 132007: Apr 202008: Apr 262009: Apr 272010: May 72011: May 42012: May 112013: May 12014: Apr 102015: Apr 92016: Mar 172017: Mar 92018: Apr 232019: Apr 302020: Apr 132021: Apr 142022: Apr 162023: Apr 142024: Mar 7

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11Nov 26Dec 111970198019902000201020201966: Oct 131967: Nov 31968: Nov 41969: Oct 131970: Sep 131971: Oct 261972: Sep 251973: Oct 41974: Oct 211975: Oct 231976: Oct 151977: Oct 31978: Oct 251979: Oct 311980: Oct 151981: Oct 111982: Oct 181983: Sep 281984: Oct 141985: Oct 71986: Oct 131987: Oct 161988: Oct 271989: Oct 31990: Nov 11991: Oct 171992: Sep 151993: Nov 71994: Nov 51995: Oct 301996: Oct 311997: Oct 191998: Nov 71999: Oct 12000: Sep 232001: Nov 92002: Oct 122003: Oct 312004: Oct 272005: Nov 212006: Oct 292007: Oct 52008: Oct 102009: Oct 112010: Oct 162011: Oct 152012: Nov 82013: Nov 192014: Nov 132015: Nov 192016: Dec 42017: Nov 32018: Oct 42019: Oct 92020: Oct 252021: Nov 172022: Oct 232023: Oct 272024: Nov 15

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
2024Mar 7Nov 15Jan 16Dec 2
2023Apr 14Oct 27Apr 3Nov 28
2022Apr 16Oct 23Apr 13Nov 9
2021Apr 14Nov 17Mar 16Dec 5
2020Apr 13Oct 25Apr 13Nov 8
2019Apr 30Oct 9Mar 10Oct 30
2018Apr 23Oct 4Mar 25Dec 3
2017Mar 9Nov 3Feb 27Dec 5
2016Mar 17Dec 4Jan 4Dec 6
2015Apr 9Nov 19Mar 4Nov 20
2014Apr 10Nov 13Feb 7Nov 13
2013May 1Nov 19Jan 22Nov 20
2012May 11Nov 8Mar 7Nov 9
2011May 4Oct 15Apr 20Nov 4
2010May 7Oct 16Mar 18Nov 21
2009Apr 27Oct 11Apr 14Dec 3
2008Apr 26Oct 10Apr 3Dec 14
2007Apr 20Oct 5Apr 3Nov 20
2006May 13Oct 29Mar 12Oct 30
2005Mar 14Nov 21Feb 22Nov 27
2004Apr 9Oct 27Apr 1Nov 20
2003Apr 4Oct 31Feb 27Nov 3
2002May 16Oct 12Apr 8Oct 30
2001May 6Nov 9Apr 11Dec 3
2000May 7Sep 23Apr 17Nov 10
1999May 9Oct 1Apr 25Dec 25
1998Apr 15Nov 7Apr 9Nov 8
1997Apr 24Oct 19Apr 6Dec 6
1996Mar 28Oct 31Mar 28Nov 2
1995Mar 26Oct 30Mar 3Nov 2
1994Mar 26Nov 5Mar 23Nov 17
1993Mar 28Nov 7Mar 27Nov 8
1992Apr 8Sep 15Feb 6Oct 15
1991Apr 15Oct 17Mar 5Oct 30
1990Apr 5Nov 1Feb 19Dec 18
1989Apr 17Oct 3Mar 3Dec 12
1988Apr 9Oct 27Feb 1Dec 14
1987Apr 25Oct 16Mar 28Nov 17
1986May 6Oct 13Apr 30Nov 29
1985Apr 29Oct 7Apr 21Oct 8
1984Apr 27Oct 14Jan 31Oct 17
1983Apr 17Sep 28Apr 14Oct 15
1982May 15Oct 18Apr 9Nov 9
1981Apr 26Oct 11Mar 5Nov 27
1980May 3Oct 15Apr 2Dec 6
1979Apr 19Oct 31Mar 28Nov 8
1978May 6Oct 25Mar 31Oct 31
1977May 12Oct 3Mar 30Nov 18
1976May 18Oct 15Apr 1Nov 26
1975May 20Oct 23Apr 29Nov 18
1974May 17Oct 21Apr 13Dec 22
1973May 21Oct 4Mar 22Nov 1
1972May 25Sep 25Mar 30Sep 27
1971Apr 21Oct 26Apr 21Oct 27
1970May 11Sep 13Apr 15Oct 26
1969May 4Oct 13Mar 13Oct 14
1968Apr 21Nov 4Mar 8Dec 18
1967Apr 20Nov 3Mar 13Dec 13
1966no dataOct 13no datanone

"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.