Last Frost Day

Frost history / Buckley 1 Ne, WA

Buckley 1 Ne, WA: frost dates by year

Last spring and first fall frost at NOAA station USC00450945, 1951 to 2011, measured from daily minimum temperatures.

Elevation 685 ft, 47.169, -122.004. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 20Oct 22
EarliestMar 24 (1989)Sep 30 (1983)
LatestMay 27 (1966)Nov 23 (1965)
Trend3.6 days earlier per decade1.0 days later per decade
Years with data6057

At 28°F (hard freeze) the median last spring date is Mar 17 and the median first fall date is Nov 12.

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 141960197019801990200020101951: Apr 141952: May 51953: Apr 71954: May 11955: Apr 271956: Apr 61957: Apr 201958: Apr 91959: Apr 191960: Apr 211961: Apr 201962: May 41963: May 41964: May 131965: May 81966: May 271967: Apr 261968: Apr 241969: Apr 251970: Apr 281971: Apr 181972: Apr 301973: May 111974: Apr 171975: May 251976: Apr 211977: Apr 171978: Apr 211979: Apr 211980: May 231981: May 41982: Apr 241983: Apr 251984: Apr 261985: Apr 251986: Apr 291987: Apr 241988: Apr 91989: Mar 241990: Mar 291991: Mar 271992: Mar 281993: Apr 121994: Mar 251995: Apr 201996: Mar 281997: Apr 41998: Apr 141999: Apr 272000: Apr 242001: Apr 152002: Apr 82003: Apr 42004: Apr 22005: Mar 242006: Apr 232007: Apr 42009: Apr 162010: Apr 112011: Apr 20

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11Nov 26Dec 111960197019801990200020101951: Oct 301952: Oct 141953: Oct 221954: Oct 241955: Nov 111956: Oct 241957: Oct 181958: Oct 211959: Nov 41960: Oct 101961: Oct 181962: Oct 171963: Nov 191964: Oct 221965: Nov 231966: Oct 311967: Nov 21968: Nov 11969: Oct 141970: Oct 141971: Oct 151972: Oct 41973: Nov 21974: Oct 61975: Nov 91976: Oct 181977: Oct 41978: Oct 31979: Oct 311980: Oct 221981: Oct 211982: Oct 191983: Sep 301984: Oct 161985: Oct 71987: Oct 191988: Oct 271989: Oct 151990: Nov 61991: Oct 41992: Oct 151993: Nov 81994: Nov 21995: Oct 291996: Oct 311997: Oct 211998: Oct 201999: Oct 272000: Oct 152001: Nov 182002: Oct 142004: Oct 272006: Oct 302008: Oct 152009: Nov 142010: Nov 212011: Nov 12

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

"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.