Last Frost Day

Frost history / Elgin, OR

Elgin, OR: frost dates by year

Last spring and first fall frost at NOAA station USC00352597, 1951 to 2005, measured from daily minimum temperatures.

Elevation 2,697 ft, 45.567, -117.924. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianJun 5Sep 5
EarliestMay 9 (1993)Aug 1 (1987)
LatestJul 19 (1962)Oct 12 (1963)
Trend2.5 days earlier per decade2.4 days later per decade
Years with data4749

At 28°F (hard freeze) the median last spring date is May 13 and the median first fall date is Sep 22.

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 30May 15May 30Jun 14Jun 29Jul 14Jul 29196019701980199020001951: Jun 21952: Jun 131953: Jun 31954: Jun 181955: Jun 161956: Jun 111957: May 271958: May 141959: Jul 81960: Jun 221961: May 131962: Jul 191964: Jun 271965: Jun 271970: May 151971: Jul 71972: May 251973: Jun 101974: Jun 91976: Jun 271977: Jul 71978: Jun 161979: Jun 81980: Jun 51981: Jul 81982: Jun 91983: May 171984: Jun 11985: May 131986: May 231987: Jun 21988: May 201989: May 301990: May 251991: Jun 41992: Jun 31993: May 91994: Jun 81995: May 191996: Jun 191997: May 211998: May 291999: Jul 52000: Jun 272001: May 302004: May 152005: Jun 13

First fall frost (32°F)

Jul 14Jul 29Aug 13Aug 28Sep 12Sep 27Oct 12Oct 27196019701980199020001951: Aug 241952: Aug 201953: Sep 181954: Sep 51955: Aug 211956: Sep 31957: Sep 11958: Sep 31959: Sep 91960: Aug 271961: Sep 61962: Aug 301963: Oct 121964: Aug 201967: Sep 131970: Aug 181971: Sep 71972: Aug 311973: Aug 181975: Sep 21976: Aug 271977: Sep 91978: Aug 271979: Sep 101980: Aug 211981: Sep 31982: Sep 111983: Sep 101984: Sep 131985: Aug 221986: Sep 111987: Aug 11988: Aug 211989: Sep 31990: Sep 191991: Sep 141992: Aug 241993: Aug 251994: Sep 121995: Sep 211996: Sep 61997: Sep 281998: Oct 51999: Sep 12000: Sep 232002: Sep 92003: Sep 132004: Sep 222005: Sep 11

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
2005Jun 13Sep 11Apr 15Sep 22
2004May 15Sep 22May 14Oct 5
2003no dataSep 13no dataOct 11
2002no dataSep 9no dataSep 21
2001May 30no dataMay 6no data
2000Jun 27Sep 23Jun 27Sep 23
1999Jul 5Sep 1Jun 9Sep 27
1998May 29Oct 5Apr 26Oct 5
1997May 21Sep 28May 2Oct 6
1996Jun 19Sep 6Jun 19Sep 23
1995May 19Sep 21Apr 23Sep 21
1994Jun 8Sep 12May 1Oct 4
1993May 9Aug 25Apr 28Sep 18
1992Jun 3Aug 24May 21Aug 24
1991Jun 4Sep 14May 3Sep 22
1990May 25Sep 19May 9Oct 6
1989May 30Sep 3May 20Sep 10
1988May 20Aug 21May 7Sep 18
1987Jun 2Aug 1May 21Sep 17
1986May 23Sep 11May 23Sep 22
1985May 13Aug 22May 13Sep 20
1984Jun 1Sep 13May 4Sep 24
1983May 17Sep 10May 14Sep 20
1982Jun 9Sep 11May 5Sep 11
1981Jul 8Sep 3May 3Sep 23
1980Jun 5Aug 21Apr 16Aug 29
1979Jun 8Sep 10May 30Oct 3
1978Jun 16Aug 27Apr 13Sep 20
1977Jul 7Sep 9May 29Oct 4
1976Jun 27Aug 27Jun 26Sep 8
1975no dataSep 2no dataSep 18
1974Jun 9no dataMay 17no data
1973Jun 10Aug 18May 27Oct 2
1972May 25Aug 31May 1Sep 10
1971Jul 7Sep 7May 18Sep 7
1970May 15Aug 18May 14Sep 9
1967no dataSep 13no dataOct 4
1965Jun 27no dataMay 18no data
1964Jun 27Aug 20May 25Sep 9
1963no dataOct 12no dataOct 17
1962Jul 19Aug 30May 4Sep 11
1961May 13Sep 6May 4Sep 24
1960Jun 22Aug 27May 22Aug 27
1959Jul 8Sep 9May 10Oct 1
1958May 14Sep 3May 13Sep 30
1957May 27Sep 1Apr 20Sep 19
1956Jun 11Sep 3May 13Sep 3
1955Jun 16Aug 21May 28Sep 24
1954Jun 18Sep 5Jun 2Sep 30
1953Jun 3Sep 18May 11Sep 25
1952Jun 13Aug 20May 4Sep 14
1951Jun 2Aug 24Jun 1Sep 12

"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.