Frost dates for Gassaway, WV
At Gassaway, the median last spring frost (32°F) is Apr 20 and the median first fall frost is Oct 25, for a typical growing season of 185 days. For a 90% chance that the last frost has passed, wait until May 9. Nearby ZIP codes are in USDA hardiness zone 6b.
- Apr 20Last spring frost (median)50% chance of 32°F after this date
- May 9Safer planting date10% chance of 32°F after this date
- Oct 25First fall frost (median)50% chance of 32°F by this date
- 185 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 | Apr 18 | May 2 | May 19 |
| 32°F | Apr 8 | Apr 20 | May 9 |
| 28°F | Mar 28 | Apr 9 | Apr 22 |
| 24°F | Mar 12 | Mar 30 | Apr 11 |
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 | Oct 5 | Oct 15 | Oct 28 |
| 32°F | Oct 12 | Oct 25 | Nov 4 |
| 28°F | Oct 20 | Nov 1 | Nov 15 |
| 24°F | Oct 30 | Nov 11 | Nov 29 |
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 | 147 days | 166 days | 184 days |
| 32°F | 163 days | 185 days | 204 days |
| 28°F | 186 days | 206 days | 225 days |
| 24°F | 209 days | 228 days | 251 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 |
|---|---|---|---|
| 26624 | 6b | -5 to 0°F | 8 km |
| 26623 | 6b | -5 to 0°F | 9 km |
| 25063 | 6b | -5 to 0°F | 17 km |
| 26617 | 6b | -5 to 0°F | 18 km |
| 25211 | 6b | -5 to 0°F | 24 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 USC00463361, at 38.6650, -80.7672, elevation 258 m (848 ft).
- Data quality: Standard (24+ years of data), 28 years of freeze data.
- Average days per year at or below 32°F: 115.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Sutton Lake (6 km)
- Rosedale 3 NNW (21 km)
- Glenville (30 km)
- Webster Springs 8 N (34 km)
- Hacker Valley (34 km)
- Grantsville 1ese (39 km)
- Rock Cave 2 NE (45 km)
- Stonewall Jackson Dam (46 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.