Frost history / Andover 2, ME
Andover 2, ME: frost dates by year
Last spring and first fall frost at NOAA station USC00170217, 2010 to 2023, measured from daily minimum temperatures.
Elevation 822 ft, 44.653, -70.794. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 19 | Sep 26 |
| Earliest | May 2 (2011) | Sep 15 (2014) |
| Latest | May 29 (2014) | Oct 23 (2021) |
| Trend | 1.5 days later per decade | 9.0 days later per decade |
| Years with data | 12 | 11 |
At 28°F (hard freeze) the median last spring date is May 9 and the median first fall date is Oct 7.
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 |
|---|---|---|---|---|
| 2023 | May 19 | no data | May 19 | no data |
| 2022 | May 19 | Sep 30 | May 9 | Oct 3 |
| 2021 | May 13 | Oct 23 | May 7 | Oct 28 |
| 2019 | May 28 | no data | May 9 | no data |
| 2018 | May 19 | Sep 23 | May 13 | Oct 15 |
| 2017 | May 21 | Oct 1 | May 11 | Oct 13 |
| 2016 | May 17 | Sep 16 | May 1 | Sep 26 |
| 2015 | May 24 | Sep 26 | Apr 22 | Sep 27 |
| 2014 | May 29 | Sep 15 | Apr 21 | Sep 19 |
| 2013 | May 29 | Oct 9 | May 28 | Oct 9 |
| 2012 | May 18 | Sep 17 | May 13 | Sep 20 |
| 2011 | May 2 | Sep 19 | May 2 | Oct 7 |
| 2010 | no data | Oct 11 | no data | Oct 14 |
"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.