Frost history / Illahe, OR
Illahe, OR: frost dates by year
Last spring and first fall frost at NOAA station USC00354133, 1951 to 2006, measured from daily minimum temperatures.
Elevation 348 ft, 42.629, -124.058. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 7 | Nov 6 |
| Earliest | Jan 14 (2000) | Aug 22 (1973) |
| Latest | May 17 (1971) | Dec 26 (1992) |
| Trend | 9.6 days earlier per decade | 4.1 days later per decade |
| Years with data | 45 | 46, 2 with no freeze |
At 28°F (hard freeze) the median last spring date is Feb 16 and the median first fall date is Dec 5.
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 |
|---|---|---|---|---|
| 2006 | no data | Nov 1 | no data | Nov 29 |
| 2005 | Mar 16 | no data | Feb 15 | no data |
| 2004 | Feb 10 | Nov 5 | none | Nov 30 |
| 2003 | Apr 4 | Oct 30 | none | none |
| 2002 | May 8 | Oct 30 | Mar 4 | Oct 30 |
| 2001 | Feb 28 | Dec 10 | Feb 13 | none |
| 2000 | Jan 14 | Oct 23 | none | none |
| 1999 | May 9 | none | Jan 25 | none |
| 1998 | Mar 3 | Dec 6 | none | Dec 19 |
| 1997 | Feb 23 | Dec 1 | none | none |
| 1996 | Feb 28 | none | none | none |
| 1995 | Mar 23 | Dec 22 | none | none |
| 1994 | Mar 22 | Nov 18 | Jan 31 | Nov 22 |
| 1993 | Apr 15 | Nov 17 | Feb 26 | Nov 19 |
| 1992 | Jan 20 | Dec 26 | none | Dec 28 |
| 1990 | Mar 14 | no data | Feb 14 | no data |
| 1989 | Mar 3 | Oct 29 | Feb 27 | Dec 11 |
| 1988 | Apr 9 | Dec 1 | Mar 17 | Dec 15 |
| 1987 | Mar 29 | Dec 11 | Feb 26 | Dec 12 |
| 1986 | Feb 9 | Dec 8 | none | none |
| 1985 | Mar 28 | Oct 8 | Feb 17 | Nov 11 |
| 1984 | no data | Nov 22 | no data | none |
| 1983 | Jan 15 | Dec 21 | Jan 1 | Dec 22 |
| 1982 | Apr 29 | Nov 10 | Feb 11 | Dec 28 |
| 1981 | Apr 7 | Oct 21 | none | none |
| 1980 | Apr 2 | Dec 7 | Jan 30 | Dec 8 |
| 1979 | Mar 1 | Nov 27 | Feb 3 | Dec 11 |
| 1978 | Mar 14 | Oct 31 | none | Nov 10 |
| 1977 | Apr 19 | Nov 8 | Jan 30 | none |
| 1976 | Apr 26 | Oct 23 | Feb 10 | Nov 27 |
| 1975 | Apr 29 | Nov 18 | Mar 28 | Nov 18 |
| 1974 | Apr 13 | Dec 22 | Mar 8 | Dec 24 |
| 1973 | Apr 7 | Aug 22 | Jan 26 | none |
| 1972 | Apr 30 | Oct 27 | Apr 18 | Dec 5 |
| 1971 | May 17 | Oct 17 | Mar 18 | Oct 28 |
| 1970 | May 11 | Sep 14 | Jan 6 | Dec 12 |
| 1969 | Apr 30 | Oct 13 | Mar 25 | Dec 31 |
| 1968 | May 12 | Nov 3 | Apr 13 | Dec 20 |
| 1967 | no data | Nov 20 | no data | Nov 26 |
| 1962 | Apr 12 | Nov 29 | Feb 27 | Dec 24 |
| 1961 | Apr 7 | Oct 29 | Jan 4 | Nov 16 |
| 1960 | Apr 16 | Nov 5 | Mar 1 | Dec 6 |
| 1959 | Apr 15 | Nov 4 | Feb 2 | Dec 5 |
| 1958 | no data | Oct 23 | no data | Nov 16 |
| 1957 | Apr 26 | Nov 2 | Jan 30 | Nov 3 |
| 1956 | no data | Nov 14 | no data | Nov 14 |
| 1955 | Apr 20 | no data | Mar 21 | no data |
| 1953 | Apr 6 | no data | Mar 2 | no data |
| 1952 | May 4 | Nov 2 | Jan 17 | Nov 22 |
| 1951 | Mar 24 | Nov 16 | Mar 3 | Dec 10 |
"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.