Frost dates for Galax Radio Wbrf, VA
At Galax Radio Wbrf, the median last spring frost (32°F) is Apr 26 and the median first fall frost is Oct 14, for a typical growing season of 171 days. For a 90% chance that the last frost has passed, wait until May 14. Nearby ZIP codes are in USDA hardiness zone 7a.
- Apr 26Last spring frost (median)50% chance of 32°F after this date
- May 14Safer planting date10% chance of 32°F after this date
- Oct 14First fall frost (median)50% chance of 32°F by this date
- 171 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 23 | May 7 | May 22 |
| 32°F | Apr 11 | Apr 26 | May 14 |
| 28°F | Mar 30 | Apr 13 | May 1 |
| 24°F | Mar 14 | Mar 31 | Apr 16 |
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 24 | Oct 6 | Oct 20 |
| 32°F | Oct 1 | Oct 14 | Oct 29 |
| 28°F | Oct 10 | Oct 25 | Nov 7 |
| 24°F | Oct 18 | Nov 4 | 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 | 130 days | 151 days | 171 days |
| 32°F | 149 days | 171 days | 192 days |
| 28°F | 170 days | 194 days | 215 days |
| 24°F | 197 days | 219 days | 241 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 |
|---|---|---|---|
| 24381 | 7a | 0 to 5°F | 10 km |
| 24330 | 7a | 0 to 5°F | 12 km |
| 24350 | 7a | 0 to 5°F | 18 km |
| 24312 | 7a | 0 to 5°F | 19 km |
| 24343 | 7a | 0 to 5°F | 22 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 USC00443267, at 36.6633, -80.9139, elevation 727 m (2,385 ft).
- Data quality: Representative (10+ years), 22 years of freeze data.
- Average days per year at or below 32°F: 123.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Galax Water Plant (1 km)
- Elk Creek 4ssw (25 km)
- Wytheville (37 km)
- Meadows Of Dan 5 SW (42 km)
- Pulaski 2 E (45 km)
- Bland (52 km)
- Stuart (59 km)
- Burkes Garden (61 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.