Frost dates for Piedmont Rsch Station, VA
At Piedmont Rsch Station, the median last spring frost (32°F) is Apr 7 and the median first fall frost is Oct 30, for a typical growing season of 204 days. For a 90% chance that the last frost has passed, wait until Apr 26. Nearby ZIP codes are in USDA hardiness zone 7a.
- Apr 7Last spring frost (median)50% chance of 32°F after this date
- Apr 26Safer planting date10% chance of 32°F after this date
- Oct 30First fall frost (median)50% chance of 32°F by this date
- 204 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 6 | Apr 21 | May 9 |
| 32°F | Mar 24 | Apr 7 | Apr 26 |
| 28°F | Mar 12 | Mar 27 | Apr 11 |
| 24°F | Feb 28 | Mar 17 | Mar 31 |
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 9 | Oct 21 | Nov 1 |
| 32°F | Oct 17 | Oct 30 | Nov 13 |
| 28°F | Oct 27 | Nov 8 | Nov 26 |
| 24°F | Nov 5 | Nov 22 | 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 | 160 days | 180 days | 200 days |
| 32°F | 181 days | 204 days | 224 days |
| 28°F | 207 days | 226 days | 251 days |
| 24°F | 227 days | 250 days | 276 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 |
|---|---|---|---|
| 22960 | 7a | 0 to 5°F | 5 km |
| 22957 | 7a | 0 to 5°F | 6 km |
| 22989 | 7a | 0 to 5°F | 7 km |
| 22733 | 7a | 0 to 5°F | 12 km |
| 22948 | 7a | 0 to 5°F | 15 km |
| 22730 | 7a | 0 to 5°F | 15 km |
| 22729 | 7a | 0 to 5°F | 16 km |
| 22942 | 7a | 0 to 5°F | 16 km |
| 22567 | 7a | 0 to 5°F | 17 km |
| 22542 | 7a | 0 to 5°F | 21 km |
| 22433 | 7a | 0 to 5°F | 27 km |
| 22508 | 7a | 0 to 5°F | 30 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 USC00446712, at 38.2322, -78.1203, elevation 158 m (520 ft).
- Data quality: Standard (24+ years of data), 29 years of freeze data.
- Average days per year at or below 32°F: 92.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Somerset (13 km)
- Louisa (23 km)
- Charlottesville Airport (31 km)
- Boston 4 SE (35 km)
- Monticello (38 km)
- Charlottesville 2 SSE (40 km)
- Charlottesville 2w (42 km)
- Big Meadows (42 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.