Frost dates for Wales, NY
At Wales, the median last spring frost (32°F) is May 7 and the median first fall frost is Oct 10, for a typical growing season of 155 days. For a 90% chance that the last frost has passed, wait until May 23. Nearby ZIP codes are in USDA hardiness zones 5b to 6a.
- May 7Last spring frost (median)50% chance of 32°F after this date
- May 23Safer planting date10% chance of 32°F after this date
- Oct 10First fall frost (median)50% chance of 32°F by this date
- 155 daysGrowing season (median)between 32°F freezes
Last spring frost dates
The chance that the temperature drops to the threshold after each date.
| Temperature | 90% chance later | 50% chance later | 10% chance later |
|---|---|---|---|
| 36°F | May 5 | May 20 | Jun 1 |
| 32°F | Apr 25 | May 7 | May 23 |
| 28°F | Apr 14 | Apr 28 | May 13 |
| 24°F | Apr 2 | Apr 15 | Apr 29 |
First fall frost dates
The chance that the temperature has dropped to the threshold by each date.
| Temperature | 10% chance by | 50% chance by | 90% chance by |
|---|---|---|---|
| 36°F | Sep 17 | Sep 29 | Oct 12 |
| 32°F | Sep 27 | Oct 10 | Oct 26 |
| 28°F | Oct 7 | Oct 24 | Nov 9 |
| 24°F | Oct 22 | Nov 6 | Nov 21 |
Growing season length
Days between the last spring and first fall freeze, as the length reached in 9, 5 and 1 out of 10 years.
| Temperature | 9 in 10 years at least | 5 in 10 years at least | 1 in 10 years at least |
|---|---|---|---|
| 36°F | 113 days | 132 days | 152 days |
| 32°F | 135 days | 155 days | 175 days |
| 28°F | 156 days | 179 days | 200 days |
| 24°F | 184 days | 204 days | 225 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 14052 | 6a | -10 to -5°F | 4 km |
| 14139 | 5b | -15 to -10°F | 4 km |
| 14169 | 6a | -10 to -5°F | 6 km |
| 14059 | 6a | -10 to -5°F | 11 km |
| 14102 | 6a | -10 to -5°F | 12 km |
| 14145 | 5b | -15 to -10°F | 13 km |
| 14037 | 5b | -15 to -10°F | 13 km |
| 14083 | 5b | -15 to -10°F | 14 km |
| 14004 | 6a | -10 to -5°F | 18 km |
Not the official USDA Plant Hardiness Zone Map. Zones shown here are the values published in the USDA-ARS / Oregon State University PRISM Group 2023 ZIP code tables, shown unaltered. For the official interactive map, visit planthardiness.ars.usda.gov.
About this station
- NOAA station ID USC00308910, at 42.7392, -78.5878, elevation 346 m (1,135 ft).
- Data quality: Standard (24+ years of data), 30 years of freeze data.
- Average days per year at or below 32°F: 151.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Colden 1 N (12 km)
- Colden 1w (14 km)
- Buffalo (26 km)
- Warsaw 6 SW (31 km)
- Wyoming 3w (37 km)
- N Tonawanda (42 km)
- Perrysburg (46 km)
- Franklinville (47 km)
Sources
- NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, annual/seasonal normals by station (version 1.0.1), file dated June 27, 2023; documentation.
- USDA Agricultural Research Service and PRISM Group, Oregon State University, 2023 Plant Hardiness Zone Map ZIP code tables (CONUS, Alaska, Hawaii, Puerto Rico), files dated November 17, 2023. Data © PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 1, 2026. Official map: planthardiness.ars.usda.gov.
- U.S. Census Bureau, 2024 Gazetteer ZIP Code Tabulation Areas file, dated August 30, 2024 (ZIP centroids used to find the nearest station).
Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.