Frost history / Tenants Harbor, ME
Tenants Harbor, ME: frost dates by year
Last spring and first fall frost at NOAA station USC00176881, 1989 to 2018, measured from daily minimum temperatures.
Elevation 21 ft, 43.992, -69.217. Download the data (JSON) · NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 22 | Oct 31 |
| Earliest | Mar 28 (2010) | Oct 11 (1993) |
| Latest | May 13 (2018) | Nov 17 (1994) |
| Trend | 1.0 days earlier per decade | little change (less than half a day per decade) |
| Years with data | 26 | 28 |
At 28°F (hard freeze) the median last spring date is Apr 10 and the median first fall date is Nov 10.
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 13 | no data | Apr 23 | no data |
| 2017 | Apr 15 | Nov 8 | Apr 4 | Nov 9 |
| 2016 | no data | Oct 15 | no data | Nov 1 |
| 2015 | no data | Oct 18 | no data | Nov 24 |
| 2014 | Apr 21 | Nov 2 | Apr 18 | Nov 15 |
| 2013 | Apr 22 | Oct 29 | Apr 7 | Nov 4 |
| 2012 | Apr 30 | Nov 6 | Mar 31 | Nov 6 |
| 2011 | Apr 16 | Oct 29 | Apr 8 | Nov 24 |
| 2010 | Mar 28 | Nov 3 | Mar 27 | Nov 19 |
| 2009 | Apr 21 | Nov 6 | Mar 26 | Dec 7 |
| 2008 | no data | Oct 23 | no data | Oct 23 |
| 2007 | Apr 19 | Nov 9 | Apr 8 | Nov 11 |
| 2006 | Apr 28 | Nov 3 | Mar 28 | Nov 21 |
| 2005 | Apr 22 | Oct 28 | Apr 15 | Nov 19 |
| 2004 | Apr 25 | Nov 4 | Apr 12 | Nov 9 |
| 2003 | Apr 20 | Nov 8 | Apr 18 | Nov 8 |
| 2002 | May 4 | Oct 15 | Apr 22 | Oct 22 |
| 2001 | Apr 29 | Oct 29 | Apr 20 | Oct 31 |
| 2000 | Apr 25 | no data | Mar 23 | no data |
| 1999 | Apr 16 | Oct 19 | Mar 27 | Nov 9 |
| 1998 | Apr 12 | Nov 6 | Mar 25 | Nov 14 |
| 1997 | Apr 20 | Oct 22 | Apr 12 | Oct 23 |
| 1996 | Apr 28 | Oct 12 | Apr 19 | Nov 13 |
| 1995 | Apr 29 | Oct 31 | Apr 18 | Nov 10 |
| 1994 | Apr 23 | Nov 17 | Apr 23 | Nov 23 |
| 1993 | Apr 29 | Oct 11 | Apr 8 | Nov 8 |
| 1992 | May 7 | Oct 31 | Apr 16 | Nov 2 |
| 1991 | Apr 20 | Oct 21 | Mar 31 | Nov 27 |
| 1990 | Apr 19 | Nov 8 | Apr 13 | Nov 13 |
| 1989 | no data | Nov 4 | no data | Nov 5 |
"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.