Frost history / Wesley, ME
Wesley, ME: frost dates by year
Last spring and first fall frost at NOAA station USC00179294, 1999 to 2013, measured from daily minimum temperatures.
Elevation 410 ft, 44.951, -67.666. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 5 | Oct 7 |
| Earliest | Apr 24 (1999) | Sep 26 (2009) |
| Latest | May 16 (2003) | Oct 26 (2006) |
| Trend | 4.8 days earlier per decade | 7.9 days later per decade |
| Years with data | 11 | 12 |
At 28°F (hard freeze) the median last spring date is Apr 27 and the median first fall date is Oct 25.
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 | no data | Oct 24 | no data | Nov 4 |
| 2012 | May 1 | no data | Apr 30 | no data |
| 2011 | Apr 24 | Oct 7 | Apr 22 | Nov 1 |
| 2009 | no data | Sep 26 | no data | Oct 14 |
| 2007 | May 5 | Oct 15 | Apr 16 | Oct 29 |
| 2006 | Apr 29 | Oct 26 | Apr 28 | Oct 31 |
| 2005 | May 14 | Oct 21 | Apr 23 | Oct 29 |
| 2004 | May 8 | Oct 6 | May 8 | Oct 6 |
| 2003 | May 16 | Oct 6 | Apr 19 | Oct 20 |
| 2002 | May 16 | Oct 5 | May 16 | Oct 16 |
| 2001 | May 6 | Oct 9 | Apr 29 | Oct 29 |
| 2000 | May 3 | Sep 29 | Apr 27 | Sep 30 |
| 1999 | Apr 24 | Oct 7 | Apr 11 | Oct 8 |
"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.