Frost dates for Philpott Dam 2, VA
At Philpott Dam 2, the median last spring frost (32°F) is Apr 14 and the median first fall frost is Oct 31, for a typical growing season of 199 days. For a 90% chance that the last frost has passed, wait until May 2. Nearby ZIP codes are in USDA hardiness zone 7b.
- Apr 14Last spring frost (median)50% chance of 32°F after this date
- May 2Safer planting date10% chance of 32°F after this date
- Oct 31First fall frost (median)50% chance of 32°F by this date
- 199 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 12 | Apr 26 | May 10 |
| 32°F | Mar 30 | Apr 14 | May 2 |
| 28°F | Mar 13 | Mar 31 | Apr 14 |
| 24°F | Feb 27 | Mar 18 | Apr 2 |
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 10 | Oct 22 | Nov 1 |
| 32°F | Oct 18 | Oct 31 | Nov 11 |
| 28°F | Oct 27 | Nov 8 | Nov 26 |
| 24°F | Nov 6 | Nov 21 | Dec 13 |
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 | 161 days | 179 days | 197 days |
| 32°F | 179 days | 199 days | 219 days |
| 28°F | 205 days | 225 days | 248 days |
| 24°F | 227 days | 251 days | 279 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 |
|---|---|---|---|
| 24055 | 7b | 5 to 10°F | 3 km |
| 24102 | 7b | 5 to 10°F | 8 km |
| 24088 | 7b | 5 to 10°F | 13 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 USC00446692, at 36.7764, -80.0272, elevation 342 m (1,123 ft).
- Data quality: Representative (10+ years), 16 years of freeze data.
- Average days per year at or below 32°F: 95.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Martinsville Fltr Plant (16 km)
- Rocky Mount (25 km)
- Stuart (26 km)
- Floyd 2 NE (29 km)
- Copper Hill (35 km)
- Meadows Of Dan 5 SW (39 km)
- Christiansburg (51 km)
- Chatham (55 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.