Last Frost Day

Frost history / Ashland, OR

Ashland, OR: frost dates by year

Last spring and first fall frost at NOAA station USC00350304, 1951 to 2025, measured from daily minimum temperatures.

Elevation 1,729 ft, 42.213, -122.715. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 8Oct 9
EarliestApr 9 (1988)Sep 14 (1970)
LatestJul 2 (1962)Nov 22 (2016)
Trend1.0 days earlier per decade0.8 days later per decade
Years with data7072

At 28°F (hard freeze) the median last spring date is Apr 16 and the median first fall date is Oct 29.

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 31Apr 15Apr 30May 15May 30Jun 14Jun 29Jul 1419601970198019902000201020201951: Apr 211952: Jun 121953: May 241954: May 11955: Apr 291956: Apr 301957: Apr 251958: May 131959: May 201960: May 221961: May 241962: Jul 21963: Apr 281964: May 221965: May 171966: May 171967: May 21969: Apr 301970: May 121971: May 171972: May 241973: Apr 301974: May 91975: May 251976: Apr 261977: May 81978: May 61979: Apr 201980: May 231981: May 71982: May 41983: May 111984: May 301985: May 151986: May 151987: May 201988: Apr 91989: May 181990: May 81991: Apr 271994: Apr 301995: Apr 291996: May 81998: Apr 171999: May 162001: May 62002: May 112003: May 192004: Apr 222005: Apr 202006: May 92007: May 52008: May 82009: May 132010: May 292011: Jun 32012: May 112013: May 12014: Apr 282015: Apr 302016: Apr 272017: May 82018: Apr 232019: May 42020: May 72021: May 102022: May 222023: May 102024: May 242025: May 5

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11Nov 26Dec 1119601970198019902000201020201951: Oct 171952: Oct 261953: Oct 31954: Sep 291955: Oct 61956: Oct 141957: Oct 71958: Sep 241959: Sep 291960: Oct 91961: Sep 301962: Oct 51963: Oct 271965: Nov 51966: Oct 141967: Oct 141968: Oct 81969: Oct 41970: Sep 141971: Oct 161972: Oct 61973: Oct 21974: Oct 51975: Oct 141976: Oct 231977: Nov 31978: Oct 301979: Nov 81980: Oct 171981: Oct 121982: Oct 181983: Oct 151984: Sep 241985: Oct 81986: Oct 131987: Sep 161988: Sep 171989: Oct 21990: Oct 51993: Sep 201994: Oct 71995: Oct 31996: Sep 221997: Oct 121998: Oct 171999: Sep 272000: Oct 222001: Oct 92002: Oct 22003: Oct 112004: Sep 212005: Sep 252006: Oct 182007: Sep 242008: Oct 112009: Oct 12010: Oct 52011: Oct 252012: Oct 182013: Oct 22014: Nov 112015: Oct 262016: Nov 222017: Sep 232018: Oct 122019: Oct 12020: Oct 222021: Oct 102022: Oct 252023: Oct 272024: Oct 182025: Oct 21

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
2025May 5Oct 21Apr 13Nov 22
2024May 24Oct 18Mar 16Oct 18
2023May 10Oct 27May 10Oct 27
2022May 22Oct 25Apr 15Nov 10
2021May 10Oct 10Apr 16Oct 12
2020May 7Oct 22Apr 14Oct 23
2019May 4Oct 1Mar 30Oct 12
2018Apr 23Oct 12Apr 4Nov 6
2017May 8Sep 23Apr 15Oct 12
2016Apr 27Nov 22Mar 8Dec 2
2015Apr 30Oct 26Apr 9Nov 6
2014Apr 28Nov 11Apr 2Nov 11
2013May 1Oct 2May 1Nov 21
2012May 11Oct 18Mar 24Oct 22
2011Jun 3Oct 25May 10Oct 25
2010May 29Oct 5May 8Oct 13
2009May 13Oct 1Apr 27Oct 6
2008May 8Oct 11Apr 24Oct 12
2007May 5Sep 24Apr 20Oct 21
2006May 9Oct 18Apr 18Oct 26
2005Apr 20Sep 25Apr 16Oct 27
2004Apr 22Sep 21Apr 2Nov 1
2003May 19Oct 11May 18Oct 13
2002May 11Oct 2May 8Oct 11
2001May 6Oct 9Apr 14Oct 18
2000no dataOct 22no dataNov 7
1999May 16Sep 27Apr 7Oct 15
1998Apr 17Oct 17Apr 16Oct 30
1997no dataOct 12no dataOct 24
1996May 8Sep 22May 8Oct 16
1995Apr 29Oct 3Apr 14Oct 21
1994Apr 30Oct 7Apr 4Oct 28
1993no dataSep 20no dataNov 1
1991Apr 27no dataApr 11no data
1990May 8Oct 5May 7Oct 6
1989May 18Oct 2May 18Oct 29
1988Apr 9Sep 17Apr 9Nov 28
1987May 20Sep 16Apr 18Nov 15
1986May 15Oct 13Apr 30Nov 30
1985May 15Oct 8Mar 24Oct 8
1984May 30Sep 24Mar 29Oct 31
1983May 11Oct 15Apr 14Nov 7
1982May 4Oct 18Apr 19Nov 7
1981May 7Oct 12Apr 13Nov 25
1980May 23Oct 17Apr 2Nov 12
1979Apr 20Nov 8Feb 3Nov 10
1978May 6Oct 30Mar 15Oct 31
1977May 8Nov 3Apr 19Nov 8
1976Apr 26Oct 23Apr 2Nov 23
1975May 25Oct 14Apr 20Oct 31
1974May 9Oct 5Apr 13Nov 4
1973Apr 30Oct 2Apr 3Nov 19
1972May 24Oct 6Apr 30Oct 30
1971May 17Oct 16Apr 21Oct 17
1970May 12Sep 14Apr 12Oct 29
1969Apr 30Oct 4Mar 23Nov 19
1968no dataOct 8no dataNov 1
1967May 2Oct 14Apr 28Nov 21
1966May 17Oct 14Apr 29Oct 14
1965May 17Nov 5May 7Nov 28
1964May 22no dataMay 4no data
1963Apr 28Oct 27Apr 20Oct 27
1962Jul 2Oct 5Apr 30Nov 13
1961May 24Sep 30Apr 22Oct 8
1960May 22Oct 9Apr 23Oct 10
1959May 20Sep 29Apr 16Oct 30
1958May 13Sep 24Apr 7Oct 24
1957Apr 25Oct 7Apr 25Oct 20
1956Apr 30Oct 14Apr 8Oct 22
1955Apr 29Oct 6Apr 27Nov 13
1954May 1Sep 29May 1Oct 24
1953May 24Oct 3Apr 9Nov 18
1952Jun 12Oct 26Apr 20Nov 2
1951Apr 21Oct 17Apr 1Oct 27

"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.