Frost history / Cottage Grove 2E, OR
Cottage Grove 2E, OR: frost dates by year
Last spring and first fall frost at NOAA station USC00351897, 1951 to 2025, measured from daily minimum temperatures.
Elevation 595 ft, 43.792, -123.028. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 1 | Oct 21 |
| Earliest | Mar 18 (2003) | Aug 20 (1988) |
| Latest | Jun 27 (1976) | Dec 13 (2012) |
| Trend | 3.7 days earlier per decade | 2.2 days later per decade |
| Years with data | 67 | 67 |
At 28°F (hard freeze) the median last spring date is Mar 25 and the median first fall date is Nov 12.
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)
First fall frost (32°F)
Dots are single years. The gray line is the median, the green line the fitted trend.
Year by year
| Year | Last spring 32°F | First fall 32°F | Last spring 28°F | First fall 28°F |
|---|---|---|---|---|
| 2025 | Apr 25 | no data | Feb 13 | no data |
| 2024 | May 26 | Oct 25 | Mar 9 | none |
| 2023 | Apr 14 | Oct 29 | Mar 18 | Oct 30 |
| 2022 | no data | Nov 4 | no data | Nov 16 |
| 2021 | Apr 16 | Oct 13 | Apr 12 | Nov 23 |
| 2020 | Apr 19 | Oct 23 | Mar 16 | Oct 26 |
| 2019 | May 3 | Oct 10 | Mar 16 | Oct 27 |
| 2018 | Apr 22 | Oct 14 | Apr 4 | Oct 15 |
| 2017 | Apr 9 | Nov 7 | Jan 29 | Nov 19 |
| 2016 | Mar 31 | Dec 2 | Jan 4 | Dec 7 |
| 2015 | Apr 16 | Nov 15 | Mar 5 | Nov 26 |
| 2014 | Apr 12 | Nov 11 | Mar 23 | Nov 12 |
| 2013 | May 1 | Oct 28 | Mar 10 | Nov 20 |
| 2012 | May 11 | Dec 13 | Mar 2 | none |
| 2011 | May 4 | Oct 25 | Feb 26 | Nov 2 |
| 2010 | Apr 25 | Oct 27 | Apr 9 | Nov 23 |
| 2009 | Apr 25 | Oct 12 | Mar 13 | Dec 5 |
| 2008 | Apr 21 | Oct 12 | Apr 3 | Dec 15 |
| 2007 | Apr 20 | Oct 27 | Feb 3 | Nov 23 |
| 2006 | Mar 28 | Oct 26 | Mar 20 | Oct 31 |
| 2005 | Apr 13 | Nov 8 | Feb 18 | Dec 11 |
| 2004 | Apr 2 | Nov 5 | Jan 7 | none |
| 2003 | Mar 18 | Oct 31 | Feb 26 | Oct 31 |
| 2002 | May 8 | Oct 27 | Mar 4 | Oct 30 |
| 2001 | Apr 15 | Nov 7 | Feb 28 | Nov 7 |
| 2000 | Mar 31 | Sep 23 | Jan 30 | Nov 11 |
| 1999 | Apr 15 | Oct 15 | Mar 11 | Dec 27 |
| 1995 | Apr 22 | Nov 1 | Mar 29 | Nov 2 |
| 1994 | Apr 29 | Oct 5 | Apr 5 | Nov 14 |
| 1993 | Apr 19 | Sep 21 | Apr 19 | Nov 6 |
| 1992 | May 21 | Sep 14 | Apr 7 | Oct 15 |
| 1991 | Apr 29 | Sep 22 | Mar 16 | Nov 30 |
| 1990 | May 16 | no data | May 8 | no data |
| 1989 | May 20 | Sep 20 | Mar 4 | Oct 15 |
| 1988 | May 30 | Aug 20 | Mar 31 | Sep 18 |
| 1987 | May 21 | Sep 17 | May 19 | Oct 15 |
| 1986 | May 16 | no data | May 1 | no data |
| 1985 | Jun 25 | Sep 29 | May 15 | Sep 29 |
| 1984 | Jun 1 | Sep 24 | Apr 28 | Nov 26 |
| 1983 | Apr 24 | Sep 20 | Apr 16 | Dec 21 |
| 1982 | May 19 | Sep 16 | May 5 | Nov 11 |
| 1981 | May 10 | Oct 12 | Apr 7 | Nov 28 |
| 1980 | May 17 | Oct 17 | Apr 3 | Oct 22 |
| 1979 | Jun 13 | Oct 21 | Feb 3 | Nov 21 |
| 1978 | May 30 | Oct 21 | May 5 | Nov 10 |
| 1977 | May 29 | Oct 21 | Apr 19 | Nov 8 |
| 1976 | Jun 27 | Oct 18 | Apr 2 | Oct 19 |
| 1975 | Jun 8 | Nov 8 | May 25 | Nov 12 |
| 1974 | May 31 | Sep 28 | Apr 13 | Oct 5 |
| 1973 | Jun 1 | Sep 1 | Apr 7 | none |
| 1972 | May 25 | Sep 27 | Apr 30 | Dec 4 |
| 1971 | May 10 | Sep 18 | Mar 20 | Oct 17 |
| 1970 | Apr 22 | Sep 12 | Apr 17 | Sep 13 |
| 1969 | May 4 | Sep 15 | Mar 25 | Oct 14 |
| 1968 | no data | Nov 30 | no data | Nov 30 |
| 1967 | May 25 | Nov 20 | Mar 6 | Dec 8 |
| 1966 | no data | Oct 9 | no data | Oct 19 |
| 1963 | Apr 22 | Oct 26 | Mar 13 | Dec 10 |
| 1962 | May 4 | Nov 24 | Mar 14 | Nov 29 |
| 1961 | Apr 25 | Sep 26 | Apr 7 | Nov 15 |
| 1960 | Apr 24 | Nov 4 | Mar 1 | Nov 5 |
| 1959 | Apr 16 | Oct 30 | Mar 14 | Nov 13 |
| 1958 | May 13 | Oct 24 | Mar 16 | Nov 16 |
| 1957 | Apr 25 | Sep 19 | Feb 21 | Nov 3 |
| 1956 | May 1 | Nov 14 | Apr 6 | Nov 19 |
| 1955 | May 9 | Nov 11 | Apr 27 | Nov 13 |
| 1954 | May 22 | Oct 2 | May 1 | Oct 9 |
| 1953 | Apr 11 | Sep 25 | Apr 8 | Dec 23 |
| 1952 | May 5 | Oct 15 | Apr 20 | Nov 22 |
| 1951 | May 28 | Oct 30 | Apr 22 | Nov 17 |
"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.