Last Frost Day

Frost history / Condon, OR

Condon, OR: frost dates by year

Last spring and first fall frost at NOAA station USC00351765, 1951 to 2017, measured from daily minimum temperatures.

Elevation 2,881 ft, 45.241, -120.179. Download the data (JSON) · NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 25Oct 2
EarliestApr 26 (2004)Aug 22 (1960)
LatestJul 5 (1955)Nov 8 (2014)
Trend4.3 days earlier per decade2.4 days later per decade
Years with data6160

At 28°F (hard freeze) the median last spring date is May 6 and the median first fall date is Oct 14.

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)

Apr 15Apr 30May 15May 30Jun 14Jun 29Jul 141960197019801990200020101951: May 301952: May 301953: May 281954: Jul 21955: Jul 51956: Jun 111957: Jun 301958: May 131959: May 291960: Jun 211961: May 131962: Jun 41963: May 41966: Jun 251967: May 301968: May 71969: May 41970: May 131971: May 301972: May 251973: Jun 181974: May 301975: May 251976: Jun 21977: Jun 21978: May 301979: Jun 71980: Jun 31981: May 151982: Jun 21983: Jun 241984: Jun 51985: May 131986: May 221987: May 211988: May 301989: May 301990: May 261991: Jun 171992: May 211993: May 91994: May 211995: May 121996: May 311998: May 202000: May 122001: May 292002: May 152003: May 192004: Apr 262005: Apr 282006: May 92007: May 292008: May 132009: May 202010: May 242011: May 172012: May 112013: May 12014: Apr 282017: May 17

First fall frost (32°F)

Aug 13Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11Nov 261960197019801990200020101951: Sep 111952: Oct 141953: Sep 291954: Sep 291955: Sep 181956: Sep 221957: Sep 191958: Sep 201959: Sep 161960: Aug 221961: Sep 221962: Oct 51965: Sep 161966: Oct 91967: Oct 201968: Oct 21969: Oct 31970: Sep 131971: Sep 171972: Sep 241973: Oct 21974: Sep 271975: Oct 81976: Oct 41977: Oct 31978: Oct 121979: Oct 291980: Oct 171981: Sep 231982: Sep 161983: Sep 191984: Sep 241986: Oct 21987: Sep 271988: Sep 161989: Oct 31990: Oct 61991: Oct 181992: Aug 231993: Sep 211994: Oct 31995: Oct 131997: Oct 71998: Oct 31999: Sep 262000: Sep 222001: Oct 102002: Oct 12003: Oct 252004: Sep 52005: Sep 242006: Oct 102007: Sep 242009: Oct 32010: Oct 172011: Oct 252012: Oct 42013: Oct 22014: Nov 82017: Oct 4

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
2017May 17Oct 4Apr 28Oct 11
2014Apr 28Nov 8Mar 23Nov 11
2013May 1Oct 2May 1Oct 29
2012May 11Oct 4May 10Oct 21
2011May 17Oct 25May 4Oct 25
2010May 24Oct 17May 6Nov 9
2009May 20Oct 3May 13Oct 3
2008May 13no dataMay 12no data
2007May 29Sep 24Apr 20Oct 26
2006May 9Oct 10May 9Oct 30
2005Apr 28Sep 24Apr 15Nov 8
2004Apr 26Sep 5Apr 1Sep 5
2003May 19Oct 25May 18Oct 30
2002May 15Oct 1May 8Oct 1
2001May 29Oct 10May 6Nov 7
2000May 12Sep 22May 6Sep 23
1999no dataSep 26no dataSep 26
1998May 20Oct 3Apr 25Oct 16
1997no dataOct 7no dataOct 20
1996May 31no dataMay 31no data
1995May 12Oct 13Apr 19Oct 22
1994May 21Oct 3Apr 5Oct 12
1993May 9Sep 21Apr 19Sep 21
1992May 21Aug 23May 12Oct 14
1991Jun 17Oct 18Jun 4Oct 22
1990May 26Oct 6May 8Oct 6
1989May 30Oct 3Apr 3Oct 3
1988May 30Sep 16May 4Oct 27
1987May 21Sep 27Apr 20Oct 15
1986May 22Oct 2May 22Oct 12
1985May 13no dataMay 12no data
1984Jun 5Sep 24May 6Oct 17
1983Jun 24Sep 19Jun 24Sep 20
1982Jun 2Sep 16May 5Oct 18
1981May 15Sep 23May 8Oct 14
1980Jun 3Oct 17May 23Oct 22
1979Jun 7Oct 29Apr 20Nov 1
1978May 30Oct 12May 4Oct 22
1977Jun 2Oct 3May 6Nov 3
1976Jun 2Oct 4Jun 2Oct 18
1975May 25Oct 8May 25Oct 24
1974May 30Sep 27May 15Oct 5
1973Jun 18Oct 2May 26Oct 2
1972May 25Sep 24Apr 30Sep 25
1971May 30Sep 17May 30Oct 14
1970May 13Sep 13May 11Sep 13
1969May 4Oct 3May 4Oct 5
1968May 7Oct 2May 7Oct 8
1967May 30Oct 20Apr 29Oct 26
1966Jun 25Oct 9May 23Oct 14
1965no dataSep 16no dataSep 17
1963May 4no dataApr 28no data
1962Jun 4Oct 5May 4Oct 16
1961May 13Sep 22Apr 19Sep 22
1960Jun 21Aug 22May 22Oct 9
1959May 29Sep 16May 3Oct 1
1958May 13Sep 20May 13Sep 24
1957Jun 30Sep 19Apr 26Oct 4
1956Jun 11Sep 22Apr 29Sep 22
1955Jul 5Sep 18Jun 15Sep 21
1954Jul 2Sep 29May 2Sep 29
1953May 28Sep 29May 11Oct 23
1952May 30Oct 14May 4Oct 28
1951May 30Sep 11May 30Oct 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.