Frost history / Roseburg Kqen, OR
Roseburg Kqen, OR: frost dates by year
Last spring and first fall frost at NOAA station USC00357331, 1966 to 2022, measured from daily minimum temperatures.
Elevation 425 ft, 43.213, -123.366. Download the data (JSON) · NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 2 | Nov 12 |
| Earliest | Jan 4 (2016) | Oct 3 (1973) |
| Latest | May 25 (1975) | Dec 28 (1986) |
| Trend | 6.2 days earlier per decade | 3.5 days later per decade |
| Years with data | 46 | 46 |
At 28°F (hard freeze) the median last spring date is Feb 22 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 |
|---|---|---|---|---|
| 2022 | Apr 17 | no data | Apr 15 | no data |
| 2017 | Mar 6 | Nov 19 | Jan 24 | none |
| 2016 | Jan 4 | Dec 7 | Jan 3 | Dec 17 |
| 2015 | Mar 5 | no data | Mar 2 | no data |
| 2014 | Mar 25 | no data | Jan 6 | no data |
| 2013 | Mar 19 | Nov 21 | Jan 23 | Nov 22 |
| 2012 | May 5 | Dec 15 | Jan 14 | none |
| 2011 | Apr 22 | Oct 26 | Feb 27 | Dec 6 |
| 2010 | Apr 9 | Nov 23 | Feb 22 | Nov 25 |
| 2009 | Apr 16 | Nov 22 | Feb 1 | Dec 7 |
| 2008 | Apr 19 | Oct 11 | Apr 3 | Dec 16 |
| 2007 | no data | Oct 25 | no data | none |
| 2006 | Mar 14 | no data | Mar 13 | no data |
| 2005 | Mar 15 | Dec 15 | Feb 17 | Dec 18 |
| 2004 | Apr 1 | Nov 20 | Feb 22 | none |
| 2003 | Feb 28 | Oct 29 | Feb 26 | Nov 22 |
| 2002 | no data | Oct 14 | no data | Oct 30 |
| 2001 | Apr 4 | Nov 6 | Feb 7 | none |
| 2000 | Mar 30 | Nov 11 | none | none |
| 1999 | Apr 2 | Oct 16 | none | none |
| 1998 | Mar 30 | Dec 5 | Mar 8 | Dec 18 |
| 1997 | Apr 5 | Dec 10 | Jan 16 | none |
| 1996 | Mar 29 | Dec 18 | Feb 3 | none |
| 1995 | Mar 27 | Nov 2 | Jan 9 | Nov 3 |
| 1994 | Mar 23 | Nov 14 | Feb 4 | Nov 19 |
| 1993 | no data | Nov 5 | no data | Nov 15 |
| 1992 | Feb 17 | Oct 15 | Jan 20 | none |
| 1991 | Mar 27 | Oct 31 | Jan 31 | none |
| 1990 | Mar 14 | Oct 7 | Mar 13 | Dec 19 |
| 1989 | Mar 26 | Nov 28 | Mar 3 | none |
| 1988 | Apr 8 | Nov 30 | Mar 11 | Nov 30 |
| 1987 | Mar 28 | Dec 13 | Feb 26 | Dec 13 |
| 1986 | Apr 24 | Dec 28 | Feb 10 | none |
| 1985 | Mar 15 | Oct 8 | Mar 3 | Oct 9 |
| 1984 | May 6 | Nov 22 | Jan 19 | Dec 20 |
| 1983 | no data | Dec 21 | no data | Dec 21 |
| 1981 | Apr 6 | Nov 29 | none | none |
| 1980 | Apr 3 | Oct 22 | Jan 29 | Dec 10 |
| 1979 | Feb 3 | no data | Feb 3 | no data |
| 1977 | Apr 17 | Nov 8 | Jan 29 | Nov 18 |
| 1976 | Apr 19 | Nov 26 | Apr 3 | Nov 27 |
| 1975 | May 25 | Nov 9 | Mar 28 | Nov 18 |
| 1974 | Apr 13 | Oct 6 | Mar 8 | Dec 25 |
| 1973 | Apr 2 | Oct 3 | Feb 1 | none |
| 1972 | May 2 | Oct 29 | Apr 20 | Dec 4 |
| 1971 | Apr 19 | Oct 17 | Mar 19 | Oct 17 |
| 1970 | Apr 27 | Nov 21 | Apr 4 | Dec 18 |
| 1969 | Apr 7 | Oct 13 | Mar 24 | Oct 13 |
| 1968 | May 6 | Nov 14 | Apr 18 | Dec 20 |
| 1967 | Apr 28 | Nov 20 | Mar 14 | Dec 12 |
| 1966 | no data | Oct 19 | no data | none |
"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.