Frost dates for Front Royal, VA
At Front Royal, the median last spring frost (32°F) is Apr 13 and the median first fall frost is Oct 28, for a typical growing season of 196 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 13Last spring frost (median)50% chance of 32°F after this date
- May 5Safer planting date10% chance of 32°F after this date
- Oct 28First fall frost (median)50% chance of 32°F by this date
- 196 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 11 | Apr 30 | May 18 |
| 32°F | Mar 30 | Apr 13 | May 5 |
| 28°F | Mar 16 | Apr 2 | Apr 17 |
| 24°F | Mar 4 | Mar 22 | Apr 5 |
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 4 | Oct 16 | Oct 31 |
| 32°F | Oct 14 | Oct 28 | Nov 9 |
| 28°F | Oct 26 | Nov 7 | Nov 22 |
| 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 | 149 days | 170 days | 193 days |
| 32°F | 170 days | 196 days | 216 days |
| 28°F | 199 days | 221 days | 243 days |
| 24°F | 219 days | 245 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 |
|---|---|---|---|
| 22630 | 7a | 0 to 5°F | 3 km |
| 22623 | 7a | 0 to 5°F | 7 km |
| 22640 | 7a | 0 to 5°F | 11 km |
| 22610 | 7a | 0 to 5°F | 12 km |
| 22642 | 7a | 0 to 5°F | 14 km |
| 22639 | 7a | 0 to 5°F | 14 km |
| 22643 | 7a | 0 to 5°F | 15 km |
| 22645 | 7a | 0 to 5°F | 15 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 USC00443229, at 38.9039, -78.1822, elevation 284 m (930 ft).
- Data quality: Standard (24+ years of data), 25 years of freeze data.
- Average days per year at or below 32°F: 101.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Woodstock 2 NE (25 km)
- Sperryville (28 km)
- Star Tannery (30 km)
- Mount Wx 3 (31 km)
- Mount Wx (31 km)
- Luray 5 E (31 km)
- Winchester 7 SE (32 km)
- Winchester (32 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.