Last Frost Day

Frost history / Milton Freewater, OR

Milton Freewater, OR: frost dates by year

Last spring and first fall frost at NOAA station USC00355593, 1951 to 2025, measured from daily minimum temperatures.

Elevation 970 ft, 45.943, -118.409. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 5Oct 21
EarliestFeb 28 (2005)Sep 13 (1970)
LatestMay 14 (1964)Nov 20 (2013)
Trend2.5 days earlier per decade3.7 days later per decade
Years with data6767

At 28°F (hard freeze) the median last spring date is Mar 15 and the median first fall date is Nov 2.

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)

Feb 14Mar 1Mar 16Mar 31Apr 15Apr 30May 15May 3019601970198019902000201020201951: Apr 211955: Apr 261957: Mar 261959: Apr 91960: Apr 161961: Apr 61962: Apr 161963: Mar 81964: May 141965: Apr 71966: Apr 191967: Apr 221968: Apr 131969: Apr 81970: Apr 271971: Apr 161972: May 11973: May 111974: Mar 201975: Apr 201976: Apr 31977: Mar 301978: Mar 61979: Mar 141980: Apr 21981: Apr 141982: Apr 201983: Apr 111984: Mar 311985: Mar 281986: Mar 151987: Mar 301988: Apr 91989: Mar 171990: Mar 261991: Mar 261992: Mar 281993: Mar 121994: Mar 251995: Mar 281996: Mar 281997: Apr 121998: Apr 131999: Apr 152000: Mar 202001: Mar 222002: Mar 222003: Apr 42004: Mar 222005: Feb 282006: Mar 132007: Mar 62008: Apr 32009: Apr 52010: Apr 122011: Apr 242012: Apr 72013: Apr 172014: Mar 122016: Mar 192018: Mar 162019: Apr 292020: Apr 152021: Apr 112022: Apr 162023: Apr 52025: Mar 5

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11Nov 2619601970198019902000201020201953: Oct 221954: Sep 301958: Oct 211959: Oct 301960: Oct 301961: Oct 181962: Nov 71963: Oct 191964: Oct 41965: Sep 171967: Oct 201968: Oct 31969: Oct 51970: Sep 131971: Sep 171972: Sep 261973: Oct 41974: Oct 61975: Nov 101976: Oct 171977: Oct 41978: Oct 131979: Nov 11980: Oct 101981: Oct 211982: Sep 301983: Sep 201984: Oct 161985: Sep 291986: Nov 21987: Oct 101988: Oct 271989: Oct 151990: Nov 31991: Oct 281992: Oct 71993: Oct 201994: Nov 51995: Oct 191996: Oct 211997: Oct 211998: Oct 191999: Oct 152000: Oct 232001: Nov 82002: Oct 122003: Oct 312004: Nov 42005: Nov 92006: Oct 302007: Oct 262008: Oct 122009: Oct 122010: Nov 202011: Nov 22012: Oct 52013: Nov 202014: Nov 112016: Nov 182018: Nov 72019: Oct 262020: Oct 222021: Oct 312022: Nov 82023: Oct 272024: Oct 252025: 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
2025Mar 5Oct 30Feb 21Nov 22
2024no dataOct 25no dataNov 28
2023Apr 5Oct 27Mar 7Oct 28
2022Apr 16Nov 8Mar 10Nov 9
2021Apr 11Oct 31Apr 11Dec 19
2020Apr 15Oct 22Mar 15Oct 24
2019Apr 29Oct 26Mar 12Oct 28
2018Mar 16Nov 7Mar 7Nov 8
2016Mar 19Nov 18Mar 18Dec 7
2014Mar 12Nov 11Mar 4Nov 12
2013Apr 17Nov 20Mar 24Nov 20
2012Apr 7Oct 5Mar 8Nov 25
2011Apr 24Nov 2Feb 27Nov 2
2010Apr 12Nov 20Apr 12Nov 22
2009Apr 5Oct 12Mar 16Oct 12
2008Apr 3Oct 12Feb 21Oct 12
2007Mar 6Oct 26Feb 5Oct 26
2006Mar 13Oct 30Mar 13Oct 31
2005Feb 28Nov 9Feb 24Nov 9
2004Mar 22Nov 4Feb 14Dec 2
2003Apr 4Oct 31Feb 26Oct 31
2002Mar 22Oct 12Mar 2Oct 26
2001Mar 22Nov 8Mar 14Nov 8
2000Mar 20Oct 23Mar 7Nov 11
1999Apr 15Oct 15Feb 10Dec 4
1998Apr 13Oct 19Mar 29Oct 30
1997Apr 12Oct 21Apr 11Oct 25
1996Mar 28Oct 21Mar 26Nov 1
1995Mar 28Oct 19Mar 7Oct 29
1994Mar 25Nov 5Mar 25Dec 4
1993Mar 12Oct 20Mar 12Nov 6
1992Mar 28Oct 7Mar 28Oct 15
1991Mar 26Oct 28Mar 17Oct 28
1990Mar 26Nov 3Mar 25Dec 6
1989Mar 17Oct 15Mar 6Oct 30
1988Apr 9Oct 27Feb 24Nov 30
1987Mar 30Oct 10Mar 30Nov 17
1986Mar 15Nov 2Feb 20Nov 9
1985Mar 28Sep 29Mar 8Oct 8
1984Mar 31Oct 16Feb 19Oct 19
1983Apr 11Sep 20Mar 16Sep 29
1982Apr 20Sep 30Apr 20Oct 19
1981Apr 14Oct 21Mar 18Oct 21
1980Apr 2Oct 10Mar 25Oct 23
1979Mar 14Nov 1Mar 3Nov 2
1978Mar 6Oct 13Mar 6Oct 22
1977Mar 30Oct 4Feb 5Nov 3
1976Apr 3Oct 17Mar 7Oct 18
1975Apr 20Nov 10Mar 28Nov 11
1974Mar 20Oct 6Mar 20Oct 6
1973May 11Oct 4Apr 8Nov 5
1972May 1Sep 26Apr 10Oct 30
1971Apr 16Sep 17Apr 1Oct 16
1970Apr 27Sep 13Apr 16Sep 13
1969Apr 8Oct 5Mar 25Oct 12
1968Apr 13Oct 3Mar 20Nov 1
1967Apr 22Oct 20Mar 12Nov 2
1966Apr 19no dataApr 19no data
1965Apr 7Sep 17Apr 7Sep 17
1964May 14Oct 4Apr 18Nov 6
1963Mar 8Oct 19Mar 8Nov 21
1962Apr 16Nov 7Mar 15Nov 17
1961Apr 6Oct 18Apr 5Oct 21
1960Apr 16Oct 30Mar 12Nov 4
1959Apr 9Oct 30Apr 9Nov 5
1958no dataOct 21no dataOct 22
1957Mar 26no dataMar 13no data
1955Apr 26no dataMar 26no data
1954no dataSep 30no dataNov 30
1953no dataOct 22no dataNov 3
1951Apr 21no dataApr 21no data

"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.