Frost history / New Sharon, ME
New Sharon, ME: frost dates by year
Last spring and first fall frost at NOAA station USC00175736, 2011 to 2025, measured from daily minimum temperatures.
Elevation 480 ft, 44.635, -70.000. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 10 | Sep 30 |
| Earliest | Apr 24 (2011) | Sep 19 (2014) |
| Latest | Jun 1 (2020) | Oct 24 (2023) |
| Trend | 4.6 days later per decade | 7.3 days later per decade |
| Years with data | 15 | 15 |
At 28°F (hard freeze) the median last spring date is Apr 23 and the median first fall date is Oct 13.
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 | May 1 | Sep 21 | Apr 11 | Oct 10 |
| 2024 | May 10 | Oct 17 | Apr 27 | Oct 18 |
| 2023 | May 18 | Oct 24 | Apr 10 | Nov 1 |
| 2022 | May 19 | Sep 30 | May 9 | Oct 3 |
| 2021 | May 7 | Oct 24 | Apr 23 | Oct 29 |
| 2020 | Jun 1 | Sep 20 | Apr 25 | Sep 21 |
| 2019 | May 17 | Sep 19 | Apr 19 | Oct 6 |
| 2018 | May 13 | Sep 25 | May 12 | Oct 23 |
| 2017 | May 9 | Oct 1 | Apr 15 | Oct 17 |
| 2016 | May 9 | Sep 30 | Apr 30 | Oct 12 |
| 2015 | Apr 26 | Oct 4 | Apr 20 | Oct 17 |
| 2014 | May 29 | Sep 19 | Apr 20 | Oct 13 |
| 2013 | May 15 | Oct 9 | Apr 27 | Oct 24 |
| 2012 | May 7 | Sep 20 | Apr 30 | Oct 9 |
| 2011 | Apr 24 | Oct 6 | Apr 23 | Oct 7 |
"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.