Frost history / Lincoln Sanitary District/Wtp, ME
Lincoln Sanitary District/Wtp, ME: frost dates by year
Last spring and first fall frost at NOAA station USC00174683, 2002 to 2025, measured from daily minimum temperatures.
Elevation 190 ft, 45.375, -68.508. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 8 | Oct 11 |
| Earliest | Apr 21 (2025) | Sep 19 (2014) |
| Latest | May 22 (2007) | Nov 2 (2021) |
| Trend | 2.7 days earlier per decade | 2.4 days later per decade |
| Years with data | 16 | 20 |
At 28°F (hard freeze) the median last spring date is Apr 24 and the median first fall date is Oct 23.
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 |
|---|---|---|---|---|
| 2025 | Apr 21 | Oct 10 | Apr 11 | Nov 3 |
| 2024 | Apr 28 | Oct 17 | Apr 28 | Oct 28 |
| 2023 | May 18 | Oct 31 | Apr 11 | Oct 31 |
| 2022 | May 9 | Oct 3 | Apr 24 | Oct 11 |
| 2021 | Apr 23 | Nov 2 | Apr 5 | Nov 4 |
| 2020 | May 13 | Sep 19 | Apr 25 | Oct 12 |
| 2019 | May 9 | Oct 5 | Apr 18 | Oct 27 |
| 2018 | May 12 | Oct 14 | Apr 24 | Oct 19 |
| 2017 | no data | Oct 3 | no data | Nov 8 |
| 2016 | May 1 | Oct 15 | Apr 30 | Oct 15 |
| 2015 | Apr 25 | Oct 17 | Apr 20 | Oct 19 |
| 2014 | May 8 | Sep 19 | Apr 21 | Nov 4 |
| 2013 | no data | Oct 24 | no data | Oct 26 |
| 2012 | no data | Oct 8 | no data | Oct 12 |
| 2009 | no data | Sep 26 | no data | Oct 15 |
| 2007 | May 22 | Oct 17 | Apr 26 | Oct 26 |
| 2006 | May 7 | Oct 13 | Apr 28 | Oct 27 |
| 2005 | May 13 | no data | Apr 21 | no data |
| 2004 | May 4 | Oct 5 | Apr 28 | Oct 5 |
| 2003 | Apr 30 | Oct 19 | Apr 27 | Oct 19 |
| 2002 | no data | Oct 3 | no data | 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.