Last Frost Day

Frost history / Quincy, WA

Quincy, WA: frost dates by year

Last spring and first fall frost at NOAA station USC00456880, 1951 to 2025, measured from daily minimum temperatures.

Elevation 1,286 ft, 47.224, -119.853. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 27Oct 11
EarliestMar 19 (2019)Sep 13 (1970)
LatestMay 29 (2011)Nov 8 (2014)
Trend2.7 days earlier per decade3.7 days later per decade
Years with data6666

At 28°F (hard freeze) the median last spring date is Apr 12 and the median first fall date is Oct 25.

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 30Jun 1419601970198019902000201020201951: Apr 221952: May 11953: May 221954: May 21955: May 11956: May 111957: Apr 131958: Apr 251959: May 51960: May 221962: May 51963: May 31964: May 231965: May 181966: Apr 261967: Apr 261968: May 51969: Apr 271970: May 101971: May 201972: May 11973: May 91974: May 161975: May 191976: Apr 231977: Apr 191978: Apr 231979: Apr 211980: Apr 161981: May 71983: Apr 171984: May 71985: May 121986: May 11987: Apr 201988: Apr 91989: Apr 111990: Mar 271991: Apr 251992: May 111993: Apr 161994: Mar 251995: Apr 191996: May 81997: May 21998: Apr 241999: Apr 272000: Apr 232001: May 32002: May 92003: May 162004: Apr 192005: Apr 152008: Apr 222009: Apr 142010: May 72011: May 292012: Apr 282013: Apr 232014: Apr 212017: Apr 162018: Apr 242019: Mar 192022: May 162024: Mar 252025: Mar 31

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11Nov 2619601970198019902000201020201951: Sep 261953: Oct 11954: Oct 11955: Oct 51956: Oct 191957: Sep 191958: Sep 241959: Oct 71960: Oct 91961: Sep 291962: Oct 61963: Oct 191964: Oct 161966: Oct 91967: Oct 41968: Oct 31969: Oct 61970: Sep 131971: Sep 171972: Sep 201973: Oct 21974: Oct 11975: Oct 81976: Oct 151977: Oct 41978: Oct 131979: Nov 11980: Oct 171981: Sep 221982: Oct 51983: Sep 201984: Sep 291985: Sep 281986: Oct 111987: Oct 111988: Oct 281989: Oct 41990: Oct 71991: Oct 221992: Oct 141993: Oct 201994: Oct 251995: Oct 191996: Oct 171997: Oct 211998: Oct 111999: Sep 282000: Sep 232001: Oct 172002: Oct 122003: Oct 252004: Oct 242005: Oct 272006: Oct 232007: Oct 172009: Oct 62010: Oct 172011: Oct 262013: Oct 152014: Nov 82017: Oct 312018: Nov 72022: Oct 252023: Oct 282024: Oct 232025: Oct 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
2025Mar 31Oct 15Mar 17Oct 28
2024Mar 25Oct 23Mar 7Nov 7
2023no dataOct 28no dataOct 28
2022May 16Oct 25Apr 18Nov 3
2019Mar 19no dataMar 19no data
2018Apr 24Nov 7Feb 27Nov 8
2017Apr 16Oct 31Apr 16Oct 31
2014Apr 21Nov 8Mar 31Nov 10
2013Apr 23Oct 15Apr 17Oct 30
2012Apr 28no dataApr 7no data
2011May 29Oct 26Apr 22Oct 26
2010May 7Oct 17Jan 8Oct 17
2009Apr 14Oct 6Mar 30Oct 11
2008Apr 22no dataApr 22no data
2007no dataOct 17no dataOct 27
2006no dataOct 23no dataOct 24
2005Apr 15Oct 27Apr 15Nov 8
2004Apr 19Oct 24Mar 20Oct 25
2003May 16Oct 25Apr 5Oct 31
2002May 9Oct 12Apr 15Oct 12
2001May 3Oct 17Mar 22Nov 7
2000Apr 23Sep 23Apr 8Oct 31
1999Apr 27Sep 28Apr 12Oct 27
1998Apr 24Oct 11Apr 24Oct 19
1997May 2Oct 21Apr 13Oct 27
1996May 8Oct 17Mar 30Oct 17
1995Apr 19Oct 19Apr 15Oct 31
1994Mar 25Oct 25Mar 23Nov 3
1993Apr 16Oct 20Mar 27Oct 30
1992May 11Oct 14Apr 8Nov 10
1991Apr 25Oct 22Mar 27Oct 28
1990Mar 27Oct 7Mar 25Oct 22
1989Apr 11Oct 4Apr 4Oct 29
1988Apr 9Oct 28Apr 9Oct 29
1987Apr 20Oct 11Mar 30Oct 21
1986May 1Oct 11Apr 13Nov 9
1985May 12Sep 28May 11Sep 28
1984May 7Sep 29Mar 7Oct 16
1983Apr 17Sep 20Apr 15Oct 11
1982no dataOct 5no dataOct 5
1981May 7Sep 22Apr 14Sep 23
1980Apr 16Oct 17Apr 7Oct 23
1979Apr 21Nov 1Apr 12Nov 1
1978Apr 23Oct 13Mar 15Oct 22
1977Apr 19Oct 4Apr 9Nov 3
1976Apr 23Oct 15Apr 15Oct 18
1975May 19Oct 8Apr 10Oct 23
1974May 16Oct 1May 16Oct 1
1973May 9Oct 2Apr 15Oct 4
1972May 1Sep 20May 1Sep 25
1971May 20Sep 17Apr 18Oct 17
1970May 10Sep 13Apr 27Sep 25
1969Apr 27Oct 6Mar 26Oct 14
1968May 5Oct 3May 5Oct 21
1967Apr 26Oct 4Apr 26Oct 20
1966Apr 26Oct 9Apr 19Oct 12
1965May 18no dataApr 7no data
1964May 23Oct 16Apr 19Oct 18
1963May 3Oct 19May 3Oct 26
1962May 5Oct 6May 5Nov 6
1961no dataSep 29no dataOct 18
1960May 22Oct 9Apr 22Oct 29
1959May 5Oct 7Apr 6Oct 10
1958Apr 25Sep 24Mar 18Oct 21
1957Apr 13Sep 19Mar 24Nov 5
1956May 11Oct 19Apr 6Oct 22
1955May 1Oct 5Apr 28Oct 23
1954May 2Oct 1May 1Oct 1
1953May 22Oct 1Apr 15Nov 2
1952May 1no dataMay 1no data
1951Apr 22Sep 26Apr 21Oct 26

"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.