Frost history / Acadia Np, ME
Acadia Np, ME: frost dates by year
Last spring and first fall frost at NOAA station USC00170100, 1983 to 2013, measured from daily minimum temperatures.
Elevation 470 ft, 44.374, -68.259. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 3 | Oct 13 |
| Earliest | Apr 17 (2009) | Sep 26 (1987) |
| Latest | Jun 3 (1986) | Nov 2 (2004) |
| Trend | 7.4 days earlier per decade | 8.0 days later per decade |
| Years with data | 31 | 29 |
At 28°F (hard freeze) the median last spring date is Apr 21 and the median first fall date is Oct 29.
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 23 | no data | Apr 7 | no data |
| 2012 | Apr 30 | Oct 13 | Apr 8 | Nov 6 |
| 2011 | Apr 22 | Oct 28 | Apr 16 | Oct 29 |
| 2010 | Apr 19 | Oct 31 | Mar 28 | Nov 3 |
| 2009 | Apr 17 | Oct 15 | Apr 16 | Nov 7 |
| 2008 | May 2 | Oct 19 | May 2 | Oct 23 |
| 2007 | Apr 20 | Oct 29 | Apr 12 | Nov 10 |
| 2006 | Apr 28 | Oct 31 | Apr 26 | Nov 5 |
| 2005 | May 14 | Oct 27 | Apr 15 | Nov 9 |
| 2004 | May 8 | Nov 2 | Apr 25 | Nov 8 |
| 2003 | Apr 19 | Oct 20 | Apr 18 | Nov 8 |
| 2002 | May 20 | Oct 15 | Apr 22 | Oct 22 |
| 2001 | Apr 30 | Oct 9 | Apr 20 | Oct 29 |
| 2000 | May 1 | no data | Apr 18 | no data |
| 1999 | Apr 24 | Oct 1 | Apr 12 | Oct 19 |
| 1998 | Apr 27 | Oct 22 | Apr 27 | Nov 6 |
| 1997 | May 8 | Oct 22 | May 5 | Oct 22 |
| 1996 | May 14 | Oct 4 | Apr 28 | Oct 5 |
| 1995 | May 8 | Oct 31 | May 7 | Oct 31 |
| 1994 | May 3 | Oct 11 | Apr 24 | Nov 11 |
| 1993 | May 13 | Oct 1 | Apr 28 | Oct 11 |
| 1992 | May 8 | Sep 30 | Apr 28 | Oct 2 |
| 1991 | May 19 | Sep 30 | Apr 14 | Oct 21 |
| 1990 | May 23 | Oct 20 | Apr 20 | Oct 27 |
| 1989 | May 4 | Sep 28 | Apr 27 | Nov 4 |
| 1988 | Apr 25 | Oct 7 | Apr 21 | Oct 13 |
| 1987 | May 2 | Sep 26 | Apr 16 | Oct 23 |
| 1986 | Jun 3 | Oct 6 | May 4 | Oct 11 |
| 1985 | May 16 | Oct 12 | May 16 | Oct 29 |
| 1984 | May 3 | Oct 6 | Apr 22 | Oct 6 |
| 1983 | May 17 | Oct 10 | Apr 3 | Oct 21 |
"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.