Last spring frost
Apr 10
Frost Dates for Mountain Road, VA
First fall frost
Oct 30
Growing season
202 days
Hardiness zone
7b
In an average year around Mountain Road, VA, the last spring frost (32°F) is about Apr 10 and the first fall frost is about Oct 30, giving roughly a 202-day growing season. To be safe most years, wait until Mar 25 before setting out tender plants.
Last spring frost
Dates the last frost of spring typically ends. Plant tender crops after the risk has passed for your comfort level.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | May 10 | Apr 23 | Apr 10 |
| Freeze (32°F) | Apr 30 | Apr 10 | Mar 25 |
| Hard (28°F) | Apr 13 | Mar 29 | Mar 12 |
| Severe (24°F) | Apr 2 | Mar 17 | Feb 25 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 10 | May 4 | May 1 | Apr 27 | Apr 23 | Apr 20 | Apr 18 | Apr 14 | Apr 10 |
| 32°F | Apr 30 | Apr 22 | Apr 17 | Apr 13 | Apr 10 | Apr 7 | Apr 3 | Mar 31 | Mar 25 |
| 28°F | Apr 13 | Apr 7 | Apr 3 | Apr 1 | Mar 29 | Mar 26 | Mar 22 | Mar 18 | Mar 12 |
| 24°F | Apr 2 | Mar 29 | Mar 24 | Mar 19 | Mar 17 | Mar 14 | Mar 9 | Mar 3 | Feb 25 |
| 20°F | Mar 22 | Mar 16 | Mar 11 | Mar 6 | Mar 2 | Feb 27 | Feb 22 | Feb 13 | Feb 4 |
| 16°F | Mar 12 | Mar 4 | Feb 27 | Feb 19 | Feb 12 | Feb 6 | Jan 31 | Jan 24 | Jan 15 |
First fall frost
Dates the first frost of fall typically arrives. Count back by a crop's days-to-maturity to know your planting cutoff.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | Oct 9 | Oct 22 | Nov 2 |
| Freeze (32°F) | Oct 17 | Oct 30 | Nov 12 |
| Hard (28°F) | Oct 26 | Nov 7 | Nov 26 |
| Severe (24°F) | Nov 4 | Nov 21 | Dec 10 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 9 | Oct 13 | Oct 16 | Oct 19 | Oct 22 | Oct 24 | Oct 27 | Oct 30 | Nov 2 |
| 32°F | Oct 17 | Oct 22 | Oct 25 | Oct 28 | Oct 30 | Nov 1 | Nov 3 | Nov 6 | Nov 12 |
| 28°F | Oct 26 | Oct 30 | Nov 1 | Nov 4 | Nov 7 | Nov 10 | Nov 14 | Nov 18 | Nov 26 |
| 24°F | Nov 4 | Nov 9 | Nov 13 | Nov 17 | Nov 21 | Nov 26 | Nov 30 | Dec 3 | Dec 10 |
| 20°F | Nov 15 | Nov 22 | Nov 28 | Dec 1 | Dec 6 | Dec 10 | Dec 18 | Dec 25 | Jan 3 |
| 16°F | Dec 2 | Dec 9 | Dec 18 | Dec 24 | Dec 31 | Jan 3 | Jan 9 | Jan 15 | Jan 24 |
Growing season is measured at 32°F with about 50% probability. Hardiness zone from the 2023 USDA map; frost normals from NOAA 1991-2020.
Where this data comes from
@endif These dates are computed from the nearest official weather station with long-term records: S Boston, Va, about 7.2 miles away@if(!empty($station['elevation_ft'])), at 329 ft elevation. The further the station and the greater the elevation difference from your yard, the more your local frost timing can vary.
How we calculate these dates
Frost and freeze dates come from the NOAA 1991–2020 U.S. Climate Normals, the National Oceanic and Atmospheric Administration's 30-year averages for each weather station. A date shown at the 50% level is the median: in half of years the frost falls on or before it. The 10% and 90% columns show the early and late ends of the range, so you can plant on the odds you're comfortable with. These are long-term averages, not a forecast for this year - always check your local outlook before planting.
Source: NOAA National Centers for Environmental Information, 1991–2020 Climate Normals (public domain). Harman is not affiliated with or endorsed by NOAA.
Frequently asked questions
When is the last frost in Mountain Road, VA?
On average, the last spring frost (32°F) around Mountain Road, VA is about Apr 10. In cooler years it can run later, so for a safer bet many gardeners wait until Mar 25.
When is the first frost in the fall?
The first fall frost around Mountain Road, VA typically arrives about Oct 30. Count back by a crop's days to maturity to find the latest date you can plant it.
When can I plant tomatoes and other tender crops?
Tender crops like tomatoes, peppers and basil are damaged by frost, so wait until the last spring frost has passed - around Apr 10 on average, or Mar 25 to be safe most years.
How long is the growing season here?
The frost-free growing season (between the last spring and first fall 32°F frost) is about 202 days in a typical year.
Are these dates a forecast for this year?
No. They are 30-year averages from the NOAA 1991–2020 Climate Normals, not a prediction for the current year. Use them for planning and always check your local weather forecast before planting or protecting crops.
Local weather for 24558 Planting calendar → Virginia frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026