Last Frost Day

Frost history / Odessa, WA

Odessa, WA: frost dates by year

Last spring and first fall frost at NOAA station USC00456039, 1951 to 2022, measured from daily minimum temperatures.

Elevation 1,543 ft, 47.333, -118.696. Download the data (JSON) · NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 13Sep 24
EarliestApr 6 (1993)Aug 29 (1980)
LatestJul 8 (1981)Oct 27 (2014)
Trend2.6 days earlier per decade1.6 days later per decade
Years with data7170

At 28°F (hard freeze) the median last spring date is May 2 and the median first fall date is Oct 9.

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: May 301952: Jun 131953: May 111954: Jun 181955: May 141956: May 131957: Apr 261958: May 131959: May 111960: Jun 71961: May 121962: May 141963: May 171964: May 251965: May 181966: May 221967: May 251968: May 51969: May 31970: May 131971: Apr 221972: May 11973: Jun 41974: May 201975: May 61976: Jun 41977: May 311978: May 231979: May 301980: Jun 41981: Jul 81982: May 271983: May 191985: May 121986: May 161987: Jun 21988: May 41989: May 261990: Jun 51991: Jun 171992: May 211993: Apr 61994: May 31995: Apr 231996: May 101997: Apr 221998: May 161999: May 112000: May 72001: May 182002: Jun 82003: May 192004: Apr 252005: Apr 282006: May 132007: May 62008: May 92009: May 82010: May 242011: May 172012: May 122013: May 22014: May 132015: May 62016: Apr 262017: May 152018: Apr 242019: Apr 302020: Apr 142021: May 82022: May 10

First fall frost (32°F)

Aug 13Aug 28Sep 12Sep 27Oct 12Oct 27Nov 1119601970198019902000201020201951: Sep 261952: Oct 141953: Sep 241954: Sep 291955: Sep 241956: Sep 221957: Sep 191958: Sep 241959: Oct 11960: Sep 221961: Sep 221962: Sep 121963: Oct 71964: Sep 181965: Sep 161966: Oct 31967: Oct 141968: Sep 211969: Sep 51970: Sep 91971: Sep 211972: Sep 241973: Oct 11974: Sep 131975: Oct 81976: Sep 61977: Sep 221978: Sep 181979: Oct 171980: Aug 291982: Sep 111983: Sep 201984: Sep 241985: Sep 281986: Sep 141987: Sep 161988: Sep 181989: Sep 101990: Sep 301991: Sep 221992: Sep 71993: Sep 211994: Oct 51995: Oct 11996: Sep 211997: Oct 61998: Oct 151999: Sep 272000: Sep 232001: Oct 42002: Oct 12003: Oct 102004: Sep 212005: Sep 212006: Sep 152007: Sep 212008: Sep 232009: Sep 302010: Oct 172011: Sep 282013: Oct 42014: Oct 272015: Sep 282016: Sep 212017: Oct 22018: Sep 172019: Sep 292020: Oct 152021: Oct 112022: Oct 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
2022May 10Oct 22Apr 18Oct 23
2021May 8Oct 11May 8Oct 12
2020Apr 14Oct 15Apr 13Oct 15
2019Apr 30Sep 29Mar 31Oct 1
2018Apr 24Sep 17Apr 3Oct 15
2017May 15Oct 2Apr 12Oct 2
2016Apr 26Sep 21Mar 30Oct 11
2015May 6Sep 28Apr 27Nov 3
2014May 13Oct 27Apr 19Oct 27
2013May 2Oct 4Apr 30Oct 14
2012May 12no dataMay 11no data
2011May 17Sep 28May 4Oct 24
2010May 24Oct 17May 6Oct 17
2009May 8Sep 30Apr 26Oct 6
2008May 9Sep 23May 9Sep 23
2007May 6Sep 21May 5Sep 29
2006May 13Sep 15May 13Oct 10
2005Apr 28Sep 21Apr 19Sep 26
2004Apr 25Sep 21Mar 28Oct 25
2003May 19Oct 10May 7Oct 10
2002Jun 8Oct 1May 10Oct 1
2001May 18Oct 4May 6Oct 9
2000May 7Sep 23Apr 7Sep 23
1999May 11Sep 27May 11Sep 27
1998May 16Oct 15Apr 16Oct 15
1997Apr 22Oct 6Apr 12Oct 7
1996May 10Sep 21May 9Sep 25
1995Apr 23Oct 1Apr 21Oct 21
1994May 3Oct 5May 2Oct 22
1993Apr 6Sep 21Apr 5Oct 20
1992May 21Sep 7May 1Oct 14
1991Jun 17Sep 22Jun 4Oct 3
1990Jun 5Sep 30May 15Oct 6
1989May 26Sep 10May 20Oct 3
1988May 4Sep 18Apr 25Oct 17
1987Jun 2Sep 16May 19Sep 16
1986May 16Sep 14May 16Oct 13
1985May 12Sep 28May 12Sep 30
1984no dataSep 24no dataSep 24
1983May 19Sep 20Apr 19Sep 20
1982May 27Sep 11May 5Sep 30
1981Jul 8no dataMay 8no data
1980Jun 4Aug 29Apr 11Sep 22
1979May 30Oct 17May 29Oct 17
1978May 23Sep 18Apr 13Oct 12
1977May 31Sep 22May 29Sep 22
1976Jun 4Sep 6May 18Oct 4
1975May 6Oct 8May 4Oct 13
1974May 20Sep 13May 2Sep 27
1973Jun 4Oct 1Apr 20Oct 1
1972May 1Sep 24May 1Sep 25
1971Apr 22Sep 21Apr 22Oct 13
1970May 13Sep 9May 13Sep 14
1969May 3Sep 5May 1Oct 10
1968May 5Sep 21May 2Oct 2
1967May 25Oct 14Apr 24Oct 15
1966May 22Oct 3May 18Oct 9
1965May 18Sep 16May 6Sep 17
1964May 25Sep 18May 23Oct 3
1963May 17Oct 7Apr 16Oct 19
1962May 14Sep 12May 6Oct 7
1961May 12Sep 22May 4Oct 9
1960Jun 7Sep 22Mar 16Oct 10
1959May 11Oct 1May 11Oct 27
1958May 13Sep 24Apr 5Sep 24
1957Apr 26Sep 19Mar 28Oct 15
1956May 13Sep 22May 13Nov 2
1955May 14Sep 24May 9Oct 6
1954Jun 18Sep 29May 2Oct 1
1953May 11Sep 24May 2Oct 24
1952Jun 13Oct 14May 5Oct 14
1951May 30Sep 26May 29Oct 15

"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 1991–2020 frost probabilities.