Last Frost Day

Frost history / Wenatchee Pangborn Ap, WA

Wenatchee Pangborn Ap, WA: frost dates by year

Last spring and first fall frost at NOAA station USW00094239, 1960 to 2024, measured from daily minimum temperatures.

Elevation 1,229 ft, 47.398, -120.201. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 12Oct 21
EarliestMar 14 (2024)Sep 27 (1972)
LatestMay 12 (1985)Nov 23 (1965)
Trend2.2 days earlier per decadelittle change (less than half a day per decade)
Years with data6565

At 28°F (hard freeze) the median last spring date is Mar 17 and the median first fall date is Nov 3.

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 3019601970198019902000201020201960: Apr 211961: Apr 201962: May 41963: Apr 21964: Apr 231965: Mar 281966: Apr 191967: Apr 141968: May 51969: Apr 261970: Apr 271971: Apr 161972: Apr 301973: Apr 81974: Apr 131975: Apr 61976: Apr 21977: Mar 291978: Apr 171979: Apr 201980: Apr 71981: Apr 141982: Apr 211983: Apr 131984: Apr 111985: May 121986: Apr 281987: Apr 181988: Apr 101989: Mar 301990: Mar 261991: Apr 61992: Apr 81993: Mar 301994: Mar 251995: Apr 151996: Apr 31997: Apr 121998: Apr 141999: Apr 112000: Apr 72001: Apr 232002: Apr 152003: Apr 42004: Mar 202005: Apr 132006: Apr 162007: Apr 112008: Apr 252009: Apr 42010: Apr 102011: Apr 202012: Apr 72013: Apr 222014: Mar 222015: Apr 52016: Mar 182017: Apr 112018: Apr 32019: Mar 202020: Apr 132021: Apr 122022: Apr 202023: Apr 202024: Mar 14

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11Nov 26Dec 1119601970198019902000201020201960: Oct 291961: Oct 201962: Oct 81963: Oct 261964: Oct 161965: Nov 231966: Nov 41967: Oct 261968: Nov 11969: Oct 131970: Oct 151971: Oct 171972: Sep 271973: Nov 11974: Nov 181975: Oct 231976: Oct 181977: Oct 101978: Oct 251979: Nov 11980: Oct 231981: Oct 211982: Oct 181983: Oct 161984: Oct 141985: Sep 291986: Nov 71987: Oct 161988: Oct 271989: Oct 151990: Oct 71991: Oct 231992: Oct 151993: Oct 301994: Oct 291995: Oct 191996: Oct 171997: Oct 121998: Oct 181999: Oct 162000: Oct 62001: Oct 282002: Oct 122003: Oct 302004: Oct 252005: Nov 42006: Oct 302007: Oct 262008: Oct 292009: Oct 102010: Oct 172011: Oct 262012: Oct 212013: Oct 292014: Nov 112015: Nov 42016: Oct 122017: Oct 142018: Oct 142019: Oct 92020: Oct 232021: Oct 122022: Nov 22023: Oct 272024: Oct 30

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 14Oct 30Mar 7Dec 15
2023Apr 20Oct 27Apr 2Oct 28
2022Apr 20Nov 2Apr 15Nov 3
2021Apr 12Oct 12Mar 8Nov 17
2020Apr 13Oct 23Apr 2Oct 25
2019Mar 20Oct 9Mar 16Oct 10
2018Apr 3Oct 14Mar 10Nov 8
2017Apr 11Oct 14Mar 8Nov 3
2016Mar 18Oct 12Feb 9Dec 3
2015Apr 5Nov 4Mar 4Nov 21
2014Mar 22Nov 11Mar 4Nov 11
2013Apr 22Oct 29Mar 25Nov 20
2012Apr 7Oct 21Mar 18Oct 21
2011Apr 20Oct 26Mar 6Oct 26
2010Apr 10Oct 17Mar 20Nov 9
2009Apr 4Oct 10Mar 16Oct 11
2008Apr 25Oct 29Apr 21Nov 23
2007Apr 11Oct 26Apr 3Oct 27
2006Apr 16Oct 30Mar 13Oct 30
2005Apr 13Nov 4Feb 25Nov 8
2004Mar 20Oct 25Mar 19Nov 4
2003Apr 4Oct 30Mar 10Oct 31
2002Apr 15Oct 12Mar 22Oct 25
2001Apr 23Oct 28Mar 3Nov 7
2000Apr 7Oct 6Mar 7Nov 10
1999Apr 11Oct 16Mar 11Nov 1
1998Apr 14Oct 18Apr 12Oct 30
1997Apr 12Oct 12Mar 16Nov 12
1996Apr 3Oct 17Mar 28Oct 30
1995Apr 15Oct 19Mar 7Oct 29
1994Mar 25Oct 29Mar 22Nov 3
1993Mar 30Oct 30Mar 18Nov 6
1992Apr 8Oct 15Feb 7Oct 15
1991Apr 6Oct 23Mar 17Oct 27
1990Mar 26Oct 7Mar 26Nov 6
1989Mar 30Oct 15Mar 17Nov 1
1988Apr 10Oct 27Mar 17Oct 27
1987Apr 18Oct 16Mar 30Nov 17
1986Apr 28Nov 7Feb 23Nov 8
1985May 12Sep 29Apr 24Oct 29
1984Apr 11Oct 14Feb 27Oct 17
1983Apr 13Oct 16Feb 10Nov 24
1982Apr 21Oct 18Mar 17Oct 18
1981Apr 14Oct 21Apr 13Nov 6
1980Apr 7Oct 23Mar 25Nov 12
1979Apr 20Nov 1Mar 10Nov 1
1978Apr 17Oct 25Mar 4Oct 26
1977Mar 29Oct 10Feb 24Nov 4
1976Apr 2Oct 18Mar 12Nov 13
1975Apr 6Oct 23Apr 3Nov 9
1974Apr 13Nov 18Mar 20Nov 26
1973Apr 8Nov 1Apr 8Nov 3
1972Apr 30Sep 27Apr 9Oct 30
1971Apr 16Oct 17Mar 19Oct 28
1970Apr 27Oct 15Apr 8Oct 27
1969Apr 26Oct 13Mar 14Oct 14
1968May 5Nov 1Mar 30Nov 15
1967Apr 14Oct 26Mar 13Nov 4
1966Apr 19Nov 4Mar 22Nov 10
1965Mar 28Nov 23Mar 27Nov 26
1964Apr 23Oct 16Mar 25Nov 6
1963Apr 2Oct 26Mar 31Nov 20
1962May 4Oct 8Mar 14Nov 18
1961Apr 20Oct 20Apr 20Nov 2
1960Apr 21Oct 29Mar 11Nov 3

"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.