Frost history / Averill, VT
Averill, VT: frost dates by year
Last spring and first fall frost at NOAA station USC00430193, 2012 to 2025, measured from daily minimum temperatures.
Elevation 1,699 ft, 45.006, -71.690. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 29 | Sep 16 |
| Earliest | May 11 (2024) | Sep 6 (2013) |
| Latest | Jun 22 (2018) | Oct 24 (2023) |
| Trend | 8.5 days earlier per decade | 18.2 days later per decade |
| Years with data | 13 | 13 |
At 28°F (hard freeze) the median last spring date is May 16 and the median first fall date is Sep 26.
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 20 | Sep 20 | May 1 | Sep 20 |
| 2024 | May 11 | Oct 12 | Apr 27 | Oct 12 |
| 2023 | May 26 | Oct 24 | May 19 | Oct 31 |
| 2022 | May 24 | no data | May 24 | no data |
| 2021 | May 30 | Sep 20 | May 28 | Oct 24 |
| 2020 | Jun 2 | Sep 12 | Jun 1 | Sep 18 |
| 2019 | no data | Sep 10 | no data | Sep 19 |
| 2018 | Jun 22 | Sep 9 | May 18 | Sep 23 |
| 2017 | Jun 15 | Oct 1 | May 9 | Oct 12 |
| 2016 | May 20 | Sep 16 | May 16 | Sep 26 |
| 2015 | Jun 7 | Sep 21 | May 23 | Sep 26 |
| 2014 | May 29 | Sep 13 | May 8 | Sep 19 |
| 2013 | Jun 5 | Sep 6 | May 15 | Oct 9 |
| 2012 | May 18 | Sep 16 | May 7 | Sep 20 |
"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.