Frost history / Eustis, ME
Eustis, ME: frost dates by year
Last spring and first fall frost at NOAA station USC00172700, 1986 to 2018, measured from daily minimum temperatures.
Elevation 1,260 ft, 45.210, -70.473. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 27 | Sep 17 |
| Earliest | May 9 (2006) | Aug 27 (1987) |
| Latest | Jun 9 (1988) | Oct 2 (1994) |
| Trend | 0.5 days earlier per decade | 3.2 days later per decade |
| Years with data | 33 | 32 |
At 28°F (hard freeze) the median last spring date is May 14 and the median first fall date is Oct 4.
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 |
|---|---|---|---|---|
| 2018 | May 20 | no data | May 18 | no data |
| 2017 | May 22 | Oct 1 | May 9 | Oct 1 |
| 2016 | May 17 | Sep 16 | May 2 | Sep 26 |
| 2015 | Jun 7 | Sep 21 | May 2 | Oct 4 |
| 2014 | May 29 | Sep 13 | May 9 | Oct 6 |
| 2013 | May 28 | Sep 6 | May 16 | Oct 24 |
| 2012 | May 19 | Sep 17 | May 12 | Sep 28 |
| 2011 | May 9 | Sep 18 | May 2 | Oct 7 |
| 2010 | May 14 | Sep 18 | May 13 | Oct 14 |
| 2009 | Jun 5 | Sep 17 | May 26 | Sep 26 |
| 2008 | May 30 | Sep 11 | May 6 | Sep 19 |
| 2007 | May 23 | Sep 17 | May 22 | Oct 17 |
| 2006 | May 9 | Sep 11 | May 9 | Oct 6 |
| 2005 | May 20 | Sep 25 | May 14 | Oct 22 |
| 2004 | May 31 | Sep 14 | May 10 | Oct 4 |
| 2003 | Jun 4 | Sep 9 | May 17 | Oct 8 |
| 2002 | Jun 4 | Sep 29 | May 21 | Oct 4 |
| 2001 | May 20 | Sep 15 | May 14 | Sep 30 |
| 2000 | Jun 5 | Sep 6 | May 20 | Sep 8 |
| 1999 | May 28 | Sep 19 | May 12 | Oct 5 |
| 1998 | Jun 2 | Sep 24 | Apr 28 | Oct 6 |
| 1997 | May 29 | Sep 22 | May 27 | Sep 22 |
| 1996 | May 28 | Sep 25 | May 27 | Oct 4 |
| 1995 | May 10 | Sep 11 | May 8 | Sep 16 |
| 1994 | May 28 | Oct 2 | May 20 | Oct 12 |
| 1993 | May 22 | Sep 17 | May 14 | Sep 20 |
| 1992 | May 27 | Sep 3 | May 26 | Sep 24 |
| 1991 | May 20 | Sep 2 | May 20 | Sep 22 |
| 1990 | Jun 7 | Sep 9 | Jun 6 | Oct 21 |
| 1989 | May 11 | Aug 27 | Apr 30 | Sep 25 |
| 1988 | Jun 9 | Sep 25 | May 15 | Oct 7 |
| 1987 | May 21 | Aug 27 | May 19 | Sep 26 |
| 1986 | May 14 | Sep 8 | May 10 | Sep 28 |
"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.