Frost history / Olean, NY
Olean, NY: frost dates by year
Last spring and first fall frost at NOAA station USC00306196, 2011 to 2025, measured from daily minimum temperatures.
Elevation 1,420 ft, 42.074, -78.452. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 1 | Oct 17 |
| Earliest | Apr 23 (2011) | Sep 19 (2020) |
| Latest | May 26 (2023) | Oct 28 (2011) |
| Trend | 3.5 days later per decade | 6.1 days earlier per decade |
| Years with data | 15 | 15 |
At 28°F (hard freeze) the median last spring date is Apr 26 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 |
|---|---|---|---|---|
| 2025 | Apr 28 | Oct 9 | Apr 18 | Oct 17 |
| 2024 | Apr 27 | Oct 17 | Apr 26 | Oct 27 |
| 2023 | May 26 | Oct 23 | May 18 | Nov 12 |
| 2022 | May 8 | Oct 3 | Apr 30 | Oct 21 |
| 2021 | May 14 | Oct 19 | Apr 24 | Nov 5 |
| 2020 | May 14 | Sep 19 | May 14 | Oct 17 |
| 2019 | Apr 30 | Oct 13 | Apr 30 | Nov 2 |
| 2018 | May 1 | Oct 18 | Apr 23 | Oct 18 |
| 2017 | May 9 | Oct 17 | Apr 10 | Nov 8 |
| 2016 | Apr 28 | Oct 11 | Apr 15 | Oct 26 |
| 2015 | May 24 | Oct 18 | Apr 27 | Oct 19 |
| 2014 | Apr 28 | Oct 12 | Apr 24 | Nov 14 |
| 2013 | May 15 | Oct 24 | May 14 | Oct 28 |
| 2012 | May 1 | Oct 9 | Apr 30 | Oct 13 |
| 2011 | Apr 23 | Oct 28 | Apr 22 | Oct 28 |
"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.