Frost history / Bradford 2, NH
Bradford 2, NH: frost dates by year
Last spring and first fall frost at NOAA station USC00270913, 2011 to 2024, measured from daily minimum temperatures.
Elevation 815 ft, 43.259, -72.002. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 14 | Sep 27 |
| Earliest | Apr 27 (2024) | Sep 15 (2014) |
| Latest | Jun 2 (2020) | Oct 24 (2021) |
| Trend | 1.2 days earlier per decade | 21.6 days later per decade |
| Years with data | 13 | 14 |
At 28°F (hard freeze) the median last spring date is Apr 29 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 |
|---|---|---|---|---|
| 2024 | Apr 27 | Oct 6 | Apr 27 | Oct 17 |
| 2023 | May 26 | Oct 23 | May 18 | Oct 23 |
| 2022 | May 11 | Sep 30 | May 10 | Oct 19 |
| 2021 | no data | Oct 24 | no data | Oct 28 |
| 2020 | Jun 2 | Sep 20 | May 6 | Sep 20 |
| 2019 | May 14 | Sep 19 | Apr 18 | Oct 5 |
| 2018 | May 13 | Oct 15 | May 13 | Oct 19 |
| 2017 | May 21 | Oct 1 | Apr 16 | Oct 13 |
| 2016 | May 12 | Sep 26 | Apr 29 | Sep 26 |
| 2015 | May 16 | Sep 27 | Apr 23 | Sep 27 |
| 2014 | May 9 | Sep 15 | Apr 21 | Oct 12 |
| 2013 | May 28 | Sep 18 | May 15 | Oct 9 |
| 2012 | May 18 | Sep 17 | Apr 29 | Oct 13 |
| 2011 | May 6 | Sep 17 | Apr 23 | Oct 24 |
"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.