Frost history / Acmetonia Lock 3, PA
Acmetonia Lock 3, PA: frost dates by year
Last spring and first fall frost at NOAA station USC00360022, 2011 to 2024, measured from daily minimum temperatures.
Elevation 748 ft, 40.536, -79.815. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 26 | Oct 28 |
| Earliest | Mar 28 (2012) | Oct 13 (2012) |
| Latest | May 15 (2013) | Nov 12 (2016) |
| Trend | 11.9 days later per decade | 4.5 days later per decade |
| Years with data | 12 | 11 |
At 28°F (hard freeze) the median last spring date is Apr 7 and the median first fall date is Nov 6.
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 23 | no data | Mar 26 | no data |
| 2023 | Apr 26 | Oct 31 | Apr 10 | Nov 2 |
| 2021 | Apr 27 | Nov 5 | Apr 4 | Nov 5 |
| 2020 | May 10 | Oct 17 | Apr 18 | Nov 14 |
| 2019 | Apr 30 | Oct 20 | Apr 3 | Nov 2 |
| 2018 | May 1 | Oct 19 | Apr 11 | Nov 11 |
| 2017 | May 9 | Nov 1 | Mar 24 | Nov 11 |
| 2016 | Apr 14 | Nov 12 | Apr 11 | Nov 12 |
| 2015 | no data | Oct 19 | no data | Nov 23 |
| 2014 | Apr 25 | no data | Apr 17 | no data |
| 2013 | May 15 | Oct 28 | Apr 7 | Nov 4 |
| 2012 | Mar 28 | Oct 13 | Mar 28 | Nov 6 |
| 2011 | Apr 7 | Oct 28 | Apr 7 | Nov 6 |
"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.