Frost history / Murrysville 2 Sw, PA
Murrysville 2 Sw, PA: frost dates by year
Last spring and first fall frost at NOAA station USC00366111, 2012 to 2025, measured from daily minimum temperatures.
Elevation 860 ft, 40.412, -79.724. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 30 | Oct 23 |
| Earliest | Apr 4 (2019) | Oct 9 (2022) |
| Latest | May 17 (2016) | Nov 3 (2021) |
| Trend | 12.9 days earlier per decade | 4.1 days later per decade |
| Years with data | 13 | 14 |
At 28°F (hard freeze) the median last spring date is Apr 9 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 |
|---|---|---|---|---|
| 2025 | Apr 18 | Oct 25 | Apr 10 | Nov 11 |
| 2024 | Apr 23 | Oct 27 | Mar 25 | Nov 30 |
| 2023 | Apr 26 | Oct 23 | Mar 22 | Nov 2 |
| 2022 | Apr 30 | Oct 9 | Mar 30 | Nov 15 |
| 2021 | May 2 | Nov 3 | Apr 4 | Nov 4 |
| 2020 | May 10 | Oct 17 | Apr 15 | Oct 31 |
| 2019 | Apr 4 | Nov 2 | Apr 2 | Nov 9 |
| 2018 | Apr 30 | Oct 16 | Apr 30 | Nov 11 |
| 2017 | May 10 | Oct 17 | Apr 9 | Nov 9 |
| 2016 | May 17 | Oct 26 | Apr 15 | Nov 12 |
| 2015 | Apr 25 | Oct 19 | Apr 1 | Oct 19 |
| 2014 | Apr 28 | Oct 26 | Apr 24 | Nov 2 |
| 2013 | May 14 | Oct 24 | Apr 21 | Oct 25 |
| 2012 | no data | Oct 10 | no data | Oct 12 |
"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.