Frost history / Parkdale 1 Nne, OR
Parkdale 1 Nne, OR: frost dates by year
Last spring and first fall frost at NOAA station USC00356466, 1982 to 2013, measured from daily minimum temperatures.
Elevation 1,520 ft, 45.535, -121.589. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 22 | Sep 24 |
| Earliest | Apr 20 (2005) | Sep 7 (1992) |
| Latest | Jun 14 (2011) | Oct 24 (2004) |
| Trend | little change (less than half a day per decade) | 4.0 days later per decade |
| Years with data | 30 | 31 |
At 28°F (hard freeze) the median last spring date is Apr 29 and the median first fall date is Oct 15.
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 |
|---|---|---|---|---|
| 2013 | May 2 | no data | May 1 | no data |
| 2012 | May 18 | Sep 26 | May 10 | Oct 6 |
| 2011 | Jun 14 | Oct 17 | May 4 | Oct 25 |
| 2010 | May 24 | Oct 12 | Apr 14 | Oct 16 |
| 2009 | May 21 | Oct 4 | May 1 | Oct 6 |
| 2008 | Jun 12 | Sep 23 | Apr 26 | Sep 23 |
| 2007 | May 23 | Sep 24 | May 14 | Oct 25 |
| 2006 | no data | Sep 22 | no data | Oct 26 |
| 2005 | Apr 20 | Sep 24 | Apr 15 | Oct 27 |
| 2004 | May 17 | Oct 24 | Apr 2 | Oct 25 |
| 2003 | May 19 | Sep 15 | May 19 | Oct 31 |
| 2002 | May 24 | Sep 22 | May 8 | Oct 12 |
| 2001 | May 29 | Oct 7 | May 6 | Oct 18 |
| 2000 | Jun 1 | Sep 23 | Apr 24 | Sep 24 |
| 1999 | Jun 10 | Sep 27 | May 10 | Sep 27 |
| 1998 | no data | Oct 5 | no data | Oct 16 |
| 1997 | May 22 | Oct 10 | May 2 | Oct 20 |
| 1996 | May 20 | Sep 23 | May 8 | Oct 17 |
| 1995 | May 19 | Oct 5 | Apr 22 | Oct 14 |
| 1994 | May 3 | Oct 3 | Mar 26 | Oct 11 |
| 1993 | May 9 | Sep 21 | Apr 14 | Sep 23 |
| 1992 | May 22 | Sep 7 | Apr 23 | Oct 15 |
| 1991 | Jun 5 | Sep 29 | Apr 12 | Oct 29 |
| 1990 | May 25 | Oct 6 | May 8 | Oct 7 |
| 1989 | May 29 | Sep 18 | Mar 30 | Oct 3 |
| 1988 | Jun 5 | Sep 18 | May 4 | Oct 27 |
| 1987 | Jun 2 | Sep 17 | Apr 20 | Sep 28 |
| 1986 | May 16 | Sep 11 | May 6 | Nov 10 |
| 1985 | Jun 9 | Sep 29 | Jun 9 | Sep 29 |
| 1984 | Jun 1 | Sep 24 | Apr 27 | Oct 15 |
| 1983 | Apr 25 | Sep 19 | Apr 15 | Sep 19 |
| 1982 | May 12 | Oct 5 | Apr 25 | Oct 18 |
"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.