Frost dates for Nora 4 SSE, VA
At Nora 4 SSE, the median last spring frost (32°F) is Apr 14 and the median first fall frost is Nov 1, for a typical growing season of 200 days. For a 90% chance that the last frost has passed, wait until May 5. Nearby ZIP codes are in USDA hardiness zone 7a.
- Apr 14Last spring frost (median)50% chance of 32°F after this date
- May 5Safer planting date10% chance of 32°F after this date
- Nov 1First fall frost (median)50% chance of 32°F by this date
- 200 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 9 | Apr 27 | May 15 |
| 32°F | Mar 29 | Apr 14 | May 5 |
| 28°F | Mar 16 | Mar 31 | Apr 20 |
| 24°F | Mar 4 | Mar 22 | Apr 6 |
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 12 | Oct 22 | Nov 2 |
| 32°F | Oct 21 | Nov 1 | Nov 12 |
| 28°F | Oct 28 | Nov 8 | Nov 25 |
| 24°F | Nov 4 | Nov 20 | Dec 8 |
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 | 157 days | 179 days | 198 days |
| 32°F | 177 days | 200 days | 221 days |
| 28°F | 200 days | 223 days | 245 days |
| 24°F | 219 days | 242 days | 269 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 |
|---|---|---|---|
| 24272 | 7a | 0 to 5°F | 1 km |
| 24237 | 7a | 0 to 5°F | 6 km |
| 24269 | 7a | 0 to 5°F | 8 km |
| 24283 | 7a | 0 to 5°F | 8 km |
| 24226 | 7a | 0 to 5°F | 14 km |
| 24220 | 7a | 0 to 5°F | 15 km |
| 24217 | 7a | 0 to 5°F | 16 km |
| 24224 | 7a | 0 to 5°F | 18 km |
| 24239 | 7a | 0 to 5°F | 19 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 USC00446125, at 37.0153, -82.3197, elevation 810 m (2,658 ft).
- Data quality: Representative (10+ years), 13 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
- Clintwood 1w (21 km)
- Wise 1se (22 km)
- Lebanon (28 km)
- Breaks Interstate Park (31 km)
- Grundy (36 km)
- Big Stone Gap (46 km)
- Richlands (47 km)
- Abingdon 3s (50 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.