Frost history / Roseburg Rgnl Ap, OR
Roseburg Rgnl Ap, OR: frost dates by year
Last spring and first fall frost at NOAA station USW00024231, 1951 to 2024, measured from daily minimum temperatures.
Elevation 525 ft, 43.239, -123.355. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 5 | Nov 14 |
| Earliest | Jan 3 (2016) | Sep 30 (1954) |
| Latest | May 27 (1954) | Dec 26 (1999) |
| Trend | 6.4 days earlier per decade | 2.4 days later per decade |
| Years with data | 42 | 42 |
At 28°F (hard freeze) the median last spring date is Feb 25 and the median first fall date is Nov 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)
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 |
|---|---|---|---|---|
| 2024 | Mar 8 | Nov 30 | none | none |
| 2023 | Mar 27 | Oct 29 | Feb 25 | none |
| 2022 | Apr 15 | Nov 15 | Feb 25 | Nov 20 |
| 2021 | Apr 9 | Nov 17 | none | Dec 27 |
| 2020 | Apr 3 | Oct 26 | none | Oct 26 |
| 2019 | Mar 14 | Oct 27 | Feb 7 | Oct 30 |
| 2018 | Apr 3 | Nov 9 | Feb 23 | none |
| 2017 | Mar 5 | Nov 19 | Jan 6 | none |
| 2016 | Jan 3 | Dec 7 | Jan 2 | Dec 17 |
| 2015 | Mar 4 | Nov 25 | Feb 23 | Nov 26 |
| 2014 | Mar 23 | Nov 30 | none | Dec 30 |
| 2013 | Mar 10 | Nov 20 | Jan 22 | Nov 22 |
| 2012 | Mar 22 | Dec 15 | Jan 14 | none |
| 2011 | Apr 22 | Oct 26 | Feb 26 | Dec 6 |
| 2010 | Apr 9 | Nov 23 | none | none |
| 2009 | Apr 16 | Nov 21 | none | Dec 6 |
| 2008 | Apr 19 | Dec 6 | Mar 5 | Dec 15 |
| 2007 | Mar 29 | Oct 26 | Feb 2 | none |
| 2006 | Mar 13 | Oct 30 | Feb 20 | Dec 19 |
| 2005 | Mar 15 | Dec 14 | Feb 16 | Dec 18 |
| 2004 | Feb 13 | Nov 5 | none | none |
| 2003 | Feb 26 | Oct 31 | Feb 25 | Oct 31 |
| 2002 | Mar 18 | Oct 30 | Mar 18 | Oct 30 |
| 2001 | Mar 12 | Nov 7 | Feb 8 | none |
| 2000 | Mar 30 | Nov 11 | none | none |
| 1999 | Apr 2 | Dec 26 | none | none |
| 1998 | Mar 30 | Dec 4 | none | Dec 19 |
| 1997 | no data | Dec 10 | no data | none |
| 1965 | May 8 | no data | Mar 19 | no data |
| 1964 | May 2 | Nov 15 | Feb 28 | Nov 15 |
| 1963 | Apr 20 | Oct 26 | Mar 13 | Dec 10 |
| 1962 | Apr 11 | Nov 27 | Feb 27 | Nov 28 |
| 1961 | Apr 25 | Oct 20 | Jan 22 | Nov 15 |
| 1960 | Apr 24 | Oct 10 | Mar 1 | Nov 4 |
| 1959 | Apr 16 | Oct 29 | Apr 7 | Nov 5 |
| 1958 | May 13 | Nov 14 | Mar 7 | Nov 15 |
| 1957 | Apr 7 | Nov 1 | Feb 10 | Nov 2 |
| 1956 | Apr 30 | Nov 13 | Mar 12 | Nov 20 |
| 1955 | May 13 | Nov 12 | Apr 27 | Nov 13 |
| 1954 | May 27 | Sep 30 | May 1 | Oct 24 |
| 1953 | Apr 11 | Oct 21 | Mar 5 | Dec 26 |
| 1952 | Apr 20 | Nov 16 | Feb 13 | Nov 22 |
| 1951 | Apr 21 | Nov 17 | Mar 3 | Dec 9 |
"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.