Last Frost Day

Frost history / Battle Ground, WA

Battle Ground, WA: frost dates by year

Last spring and first fall frost at NOAA station USC00450482, 1951 to 2025, measured from daily minimum temperatures.

Elevation 284 ft, 45.772, -122.529. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 24Oct 15
EarliestMar 21 (2005)Sep 13 (1970)
LatestJun 4 (1966)Nov 18 (2016)
Trend2.8 days earlier per decade1.7 days later per decade
Years with data6970

At 28°F (hard freeze) the median last spring date is Mar 24 and the median first fall date is Nov 6.

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 291952: May 31953: Apr 151956: Apr 301957: Apr 251958: May 131959: May 111960: Apr 101961: Apr 221962: May 51963: May 41964: May 251965: May 141966: Jun 41967: May 251968: Apr 271969: May 41970: Apr 261971: Apr 211972: Apr 301973: Apr 291974: Apr 131977: Apr 201978: Apr 121979: Apr 71980: Apr 111981: Apr 251982: Apr 251983: Apr 261984: Apr 271985: May 151986: May 141987: Apr 251988: Apr 261989: Apr 81990: Apr 91991: Apr 121992: May 211993: Apr 191994: Mar 251995: Apr 211996: May 81997: Apr 111998: Apr 241999: May 102000: Apr 232001: Apr 142002: May 72003: Apr 242004: Apr 232005: Mar 212008: Apr 262009: Apr 242010: Apr 142011: May 42012: May 112013: May 22014: Apr 12015: Apr 172016: Mar 302017: Apr 122018: Apr 42019: Apr 292020: Apr 142021: Apr 152022: Apr 162023: Apr 212024: Apr 232025: Apr 21

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11Nov 2619601970198019902000201020201951: Oct 251952: Oct 151953: Oct 211954: Sep 291955: Sep 211957: Oct 151958: Oct 241959: Oct 291960: Oct 91961: Sep 221962: Oct 161963: Oct 191964: Oct 171965: Sep 171966: Oct 91967: Oct 201968: Oct 21969: Oct 111970: Sep 131971: Oct 161973: Oct 11975: Nov 121977: Nov 31978: Oct 211979: Nov 11980: Oct 91981: Oct 121982: Oct 181983: Sep 281984: Oct 221985: Sep 291986: Oct 121987: Oct 111988: Oct 261989: Oct 151990: Oct 71991: Oct 281992: Oct 151993: Sep 201994: Oct 21995: Oct 181996: Oct 151997: Oct 201998: Oct 181999: Sep 262000: Sep 222001: Oct 282002: Oct 112003: Oct 312004: Nov 32005: Sep 242006: Oct 92008: Oct 112009: Oct 112010: Oct 152011: Oct 252012: Oct 62013: Oct 292014: Nov 122015: Nov 42016: Nov 182017: Oct 142018: Nov 82019: Sep 302020: Oct 222021: Oct 122022: Nov 72023: Oct 272024: Oct 232025: 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 21Oct 14Mar 6Nov 30
2024Apr 23Oct 23Mar 15Dec 1
2023Apr 21Oct 27Mar 18Oct 29
2022Apr 16Nov 7Apr 7Nov 9
2021Apr 15Oct 12Apr 13Nov 17
2020Apr 14Oct 22Mar 19Oct 26
2019Apr 29Sep 30Mar 12Oct 11
2018Apr 4Nov 8Apr 4Nov 9
2017Apr 12Oct 14Mar 20Dec 7
2016Mar 30Nov 18Mar 18Dec 7
2015Apr 17Nov 4Mar 6Nov 21
2014Apr 1Nov 12Mar 23Nov 15
2013May 2Oct 29Mar 10Oct 29
2012May 11Oct 6Apr 8Nov 26
2011May 4Oct 25Apr 18Oct 26
2010Apr 14Oct 15Apr 10Nov 20
2009Apr 24Oct 11Apr 4Dec 2
2008Apr 26Oct 11Apr 3Nov 24
2006no dataOct 9no dataOct 29
2005Mar 21Sep 24Mar 14Nov 19
2004Apr 23Nov 3Feb 13Nov 4
2003Apr 24Oct 31Mar 23Oct 31
2002May 7Oct 11Mar 17Oct 11
2001Apr 14Oct 28Apr 3Nov 6
2000Apr 23Sep 22Mar 14Nov 9
1999May 10Sep 26Mar 10Oct 15
1998Apr 24Oct 18Mar 29Dec 17
1997Apr 11Oct 20Apr 4Nov 13
1996May 8Oct 15Mar 27Nov 22
1995Apr 21Oct 18Mar 27Oct 30
1994Mar 25Oct 2Mar 6Nov 17
1993Apr 19Sep 20Mar 11Nov 4
1992May 21Oct 15Jan 20Oct 15
1991Apr 12Oct 28Mar 25Oct 30
1990Apr 9Oct 7Mar 24Dec 7
1989Apr 8Oct 15Mar 23Oct 15
1988Apr 26Oct 26Mar 17Oct 26
1987Apr 25Oct 11Mar 28Oct 19
1986May 14Oct 12Apr 10Nov 10
1985May 15Sep 29Mar 15Oct 9
1984Apr 27Oct 22Feb 5Nov 22
1983Apr 26Sep 28Apr 14Nov 29
1982Apr 25Oct 18Apr 19Nov 2
1981Apr 25Oct 12Apr 13Nov 4
1980Apr 11Oct 9Feb 21Oct 22
1979Apr 7Nov 1Feb 15Nov 11
1978Apr 12Oct 21Mar 15Oct 31
1977Apr 20Nov 3Mar 5Nov 8
1975no dataNov 12no dataNov 18
1974Apr 13no dataMar 18no data
1973Apr 29Oct 1Feb 20Nov 3
1972Apr 30no dataApr 22no data
1971Apr 21Oct 16Apr 13Oct 28
1970Apr 26Sep 13Apr 12Oct 27
1969May 4Oct 11Mar 24Nov 26
1968Apr 27Oct 2Apr 17Nov 1
1967May 25Oct 20Apr 15Nov 20
1966Jun 4Oct 9Mar 22Oct 18
1965May 14Sep 17Apr 11Sep 17
1964May 25Oct 17Apr 18Nov 14
1963May 4Oct 19Apr 2Nov 20
1962May 5Oct 16Mar 28Dec 1
1961Apr 22Sep 22Apr 5Nov 4
1960Apr 10Oct 9Mar 4Nov 26
1959May 11Oct 29Mar 20Nov 5
1958May 13Oct 24Mar 16Nov 16
1957Apr 25Oct 15Apr 20Nov 2
1956Apr 30no dataApr 6no data
1955no dataSep 21no dataNov 12
1954no dataSep 29no dataOct 24
1953Apr 15Oct 21Apr 2Nov 2
1952May 3Oct 15Apr 7Nov 2
1951May 29Oct 25Apr 21Oct 30

"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.