Frost history / Washington 3 Ne, PA
Washington 3 Ne, PA: frost dates by year
Last spring and first fall frost at NOAA station USC00369318, 1975 to 2013, measured from daily minimum temperatures.
Elevation 1,300 ft, 40.179, -80.189. Download the data (JSON) · NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 23 | Oct 14 |
| Earliest | Mar 24 (2004) | Sep 23 (1983) |
| Latest | Jun 9 (2010) | Nov 11 (1994) |
| Trend | 1.4 days earlier per decade | 4.2 days later per decade |
| Years with data | 28 | 31 |
At 28°F (hard freeze) the median last spring date is Apr 11 and the median first fall date is Nov 2.
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 | Apr 28 | Oct 25 | Apr 7 | Nov 4 |
| 2012 | Apr 29 | Oct 9 | Mar 28 | Oct 13 |
| 2011 | Apr 6 | Oct 28 | Mar 30 | Oct 30 |
| 2010 | Jun 9 | Nov 1 | May 12 | Nov 2 |
| 2009 | Apr 14 | Oct 6 | Apr 13 | Oct 14 |
| 2008 | Apr 16 | Sep 24 | Mar 30 | Oct 19 |
| 2007 | Apr 17 | Oct 28 | Apr 11 | Oct 28 |
| 2006 | no data | Oct 13 | no data | Nov 3 |
| 2005 | May 4 | Oct 25 | Mar 22 | Nov 17 |
| 2004 | Mar 24 | Nov 9 | Mar 23 | Nov 13 |
| 2003 | Apr 25 | Oct 3 | Apr 1 | Nov 9 |
| 2002 | May 22 | Nov 2 | Apr 8 | Nov 2 |
| 2001 | Apr 20 | Oct 8 | Apr 19 | Oct 8 |
| 2000 | Apr 14 | no data | Apr 14 | no data |
| 1999 | Apr 24 | Oct 25 | Mar 27 | Nov 4 |
| 1998 | Apr 29 | Nov 4 | Mar 26 | Nov 4 |
| 1997 | Apr 21 | Oct 21 | Apr 20 | Oct 23 |
| 1996 | May 14 | Oct 4 | Apr 11 | Nov 3 |
| 1995 | Apr 26 | Oct 26 | Apr 15 | Nov 4 |
| 1994 | Apr 22 | Nov 11 | Apr 9 | Nov 12 |
| 1993 | Apr 28 | Oct 1 | Apr 28 | Nov 2 |
| 1992 | Apr 14 | Oct 18 | Apr 14 | Oct 20 |
| 1991 | Apr 13 | Oct 14 | Apr 3 | Oct 21 |
| 1990 | Apr 20 | Oct 20 | Apr 19 | Oct 27 |
| 1989 | May 8 | Oct 9 | Apr 23 | Nov 4 |
| 1988 | Apr 21 | Oct 8 | Apr 17 | Oct 13 |
| 1987 | Apr 6 | Oct 9 | Apr 4 | Oct 23 |
| 1986 | no data | Oct 18 | no data | Nov 10 |
| 1983 | no data | Sep 23 | no data | Oct 14 |
| 1977 | May 11 | Oct 6 | Apr 30 | Nov 11 |
| 1976 | May 12 | Oct 11 | May 9 | Oct 17 |
| 1975 | no data | Oct 2 | no data | Oct 30 |
"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.