Last Frost Day

Frost history / Leaburg 1 Sw, OR

Leaburg 1 Sw, OR: frost dates by year

Last spring and first fall frost at NOAA station USC00354811, 1951 to 2025, measured from daily minimum temperatures.

Elevation 675 ft, 44.101, -122.689. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 14Nov 8
EarliestMar 14 (1990)Sep 13 (1970)
LatestMay 12 (1985)Dec 22 (1953)
Trend0.8 days earlier per decade0.8 days earlier per decade
Years with data7474

At 28°F (hard freeze) the median last spring date is Feb 27 and the median first fall date is Nov 28.

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 3019601970198019902000201020201951: Apr 211952: May 41953: Apr 91954: May 11955: Apr 111956: Apr 171957: Apr 71958: Mar 161959: Apr 161960: Apr 231961: Apr 221962: Mar 301963: Apr 221964: May 31965: Apr 31966: Apr 291967: Apr 271968: May 71969: Mar 241970: Apr 271971: Apr 191972: Apr 301973: Apr 301974: Apr 131975: Apr 291976: Apr 141977: Apr 191978: Apr 121979: Mar 251980: Apr 31981: Apr 131982: May 41983: Apr 131984: Apr 281985: May 121986: Apr 241987: Mar 291988: Mar 161989: Mar 231990: Mar 141991: Mar 291992: Apr 71993: Apr 121994: Apr 51995: Apr 171996: May 91997: Apr 121998: Mar 311999: Apr 142000: Apr 72001: Apr 142002: May 82003: Mar 242004: Apr 42005: Mar 242006: May 32008: May 102009: Apr 252010: Apr 102011: May 12012: May 112013: May 12014: Mar 232015: Apr 32016: Mar 182017: Apr 32018: Apr 32019: May 22020: Apr 132021: Apr 142022: Apr 182023: Mar 312024: Apr 172025: Apr 13

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11Nov 26Dec 11Dec 26Jan 1019601970198019902000201020201951: Nov 161952: Nov 61953: Dec 221954: Nov 301955: Nov 121956: Nov 191957: Nov 11958: Nov 151959: Oct 301960: Nov 41961: Oct 291962: Nov 231963: Oct 261964: Nov 131965: Sep 171966: Nov 231967: Nov 211968: Dec 161969: Nov 271970: Sep 131971: Oct 171972: Oct 301973: Nov 21974: Oct 51975: Nov 171976: Nov 271977: Nov 41978: Oct 311979: Nov 111980: Nov 121981: Nov 51982: Nov 91983: Nov 201984: Nov 221985: Oct 81986: Nov 251987: Nov 261988: Nov 191989: Oct 291990: Oct 71991: Oct 301992: Oct 141994: Nov 31995: Oct 311996: Dec 141997: Dec 11998: Dec 61999: Oct 152000: Nov 102001: Nov 72002: Oct 312003: Oct 312004: Nov 42005: Nov 82006: Oct 112007: Oct 262008: Oct 122009: Oct 52010: Nov 212011: Oct 272012: Nov 152013: Oct 292014: Nov 152015: Nov 212016: Dec 72017: Nov 192018: Nov 82019: Oct 272020: Oct 262021: Oct 92022: Nov 92023: Oct 272024: Nov 242025: Nov 22

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 13Nov 22Feb 13none
2024Apr 17Nov 24Mar 7Nov 24
2023Mar 31Oct 27Feb 26Nov 25
2022Apr 18Nov 9Mar 10Nov 14
2021Apr 14Oct 9noneDec 27
2020Apr 13Oct 26Feb 18Nov 9
2019May 2Oct 27Mar 10Nov 28
2018Apr 3Nov 8Feb 23none
2017Apr 3Nov 19Jan 25Dec 8
2016Mar 18Dec 7Jan 21Dec 7
2015Apr 3Nov 21Mar 1Nov 26
2014Mar 23Nov 15Mar 21Nov 16
2013May 1Oct 29Jan 22Nov 21
2012May 11Nov 15Mar 8none
2011May 1Oct 27Feb 27Nov 20
2010Apr 10Nov 21Mar 9Nov 23
2009Apr 25Oct 5Mar 13Oct 5
2008May 10Oct 12Apr 24Dec 15
2007no dataOct 26no dataNov 22
2006May 3Oct 11May 1Oct 31
2005Mar 24Nov 8Feb 16Dec 5
2004Apr 4Nov 4noneNov 21
2003Mar 24Oct 31Feb 27Nov 1
2002May 8Oct 31Mar 3Oct 31
2001Apr 14Nov 7Mar 1none
2000Apr 7Nov 10Jan 29Nov 11
1999Apr 14Oct 15Mar 6Dec 25
1998Mar 31Dec 6Mar 6Dec 19
1997Apr 12Dec 1Jan 15Dec 25
1996May 9Dec 14Mar 26Dec 18
1995Apr 17Oct 31Mar 7Nov 1
1994Apr 5Nov 3Feb 9Nov 22
1993Apr 12no dataFeb 28no data
1992Apr 7Oct 14noneDec 3
1991Mar 29Oct 30Jan 31Oct 30
1990Mar 14Oct 7Mar 13Dec 19
1989Mar 23Oct 29Feb 26Dec 11
1988Mar 16Nov 19Feb 24Dec 16
1987Mar 29Nov 26Feb 26Nov 29
1986Apr 24Nov 25Feb 10Dec 9
1985May 12Oct 8Mar 3Oct 9
1984Apr 28Nov 22Jan 31Dec 18
1983Apr 13Nov 20Jan 1Dec 21
1982May 4Nov 9Feb 11Nov 14
1981Apr 13Nov 5Feb 9Nov 28
1980Apr 3Nov 12Feb 13Dec 7
1979Mar 25Nov 11Feb 3Dec 11
1978Apr 12Oct 31Feb 11Nov 10
1977Apr 19Nov 4Feb 4Nov 19
1976Apr 14Nov 27Mar 5Nov 27
1975Apr 29Nov 17Apr 6Nov 18
1974Apr 13Oct 5Mar 8Dec 24
1973Apr 30Nov 2Jan 27none
1972Apr 30Oct 30Feb 4Dec 4
1971Apr 19Oct 17Mar 26Oct 29
1970Apr 27Sep 13Jan 7Dec 18
1969Mar 24Nov 27Mar 13Nov 28
1968May 7Dec 16Apr 13Dec 20
1967Apr 27Nov 21Mar 4Dec 13
1966Apr 29Nov 23Feb 18Dec 22
1965Apr 3Sep 17Mar 19Dec 15
1964May 3Nov 13Feb 27Nov 15
1963Apr 22Oct 26Jan 29Nov 28
1962Mar 30Nov 23Feb 27Dec 24
1961Apr 22Oct 29Jan 4Nov 15
1960Apr 23Nov 4Mar 9Dec 6
1959Apr 16Oct 30Feb 12Nov 8
1958Mar 16Nov 15Jan 7Nov 27
1957Apr 7Nov 1Feb 16Nov 2
1956Apr 17Nov 19Mar 12Nov 21
1955Apr 11Nov 12Mar 20Nov 14
1954May 1Nov 30Mar 30Nov 30
1953Apr 9Dec 22Mar 2none
1952May 4Nov 6Jan 17Nov 22
1951Apr 21Nov 16Mar 5Dec 7

"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.