Frost history / Wellsville Muni Ap, NY
Wellsville Muni Ap, NY: frost dates by year
Last spring and first fall frost at NOAA station USW00054757, 2000 to 2024, measured from daily minimum temperatures.
Elevation 2,124 ft, 42.109, -77.992. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 10 | Oct 8 |
| Earliest | Apr 16 (2007) | Sep 17 (2013) |
| Latest | May 28 (2008) | Oct 29 (2007) |
| Trend | 0.6 days earlier per decade | 2.7 days later per decade |
| Years with data | 24 | 25 |
At 28°F (hard freeze) the median last spring date is Apr 28 and the median first fall date is Oct 27.
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 26 | Oct 14 | Apr 25 | Oct 27 |
| 2023 | May 26 | Oct 23 | May 18 | Nov 13 |
| 2022 | Apr 30 | Sep 30 | Apr 29 | Nov 17 |
| 2021 | May 10 | Oct 28 | Apr 26 | Nov 5 |
| 2020 | May 13 | Sep 19 | May 13 | Oct 17 |
| 2019 | Apr 29 | Oct 13 | Apr 29 | Nov 7 |
| 2018 | Apr 30 | Oct 18 | Apr 21 | Nov 10 |
| 2017 | May 9 | Oct 1 | Mar 23 | Nov 8 |
| 2016 | May 16 | Oct 11 | Apr 14 | Oct 26 |
| 2015 | May 23 | Oct 17 | Apr 25 | Oct 19 |
| 2014 | May 5 | Oct 12 | Apr 17 | Nov 7 |
| 2013 | May 14 | Sep 17 | Apr 21 | Nov 11 |
| 2012 | Apr 30 | Oct 12 | Apr 29 | Oct 13 |
| 2011 | Apr 22 | Oct 6 | Apr 22 | Oct 28 |
| 2010 | May 13 | Oct 10 | May 10 | Oct 13 |
| 2009 | May 19 | Oct 2 | May 18 | Oct 12 |
| 2008 | May 28 | Oct 4 | Apr 30 | Oct 7 |
| 2007 | Apr 16 | Oct 29 | Apr 11 | Nov 11 |
| 2006 | May 23 | Oct 7 | Apr 28 | Oct 26 |
| 2005 | May 18 | Oct 20 | May 13 | Oct 27 |
| 2004 | May 4 | Oct 3 | Apr 28 | Nov 8 |
| 2003 | Apr 27 | Oct 2 | Apr 24 | Oct 6 |
| 2002 | May 22 | Oct 8 | May 21 | Oct 23 |
| 2001 | Apr 29 | Oct 7 | Apr 29 | Oct 8 |
| 2000 | no data | Sep 28 | no data | Sep 29 |
"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.