Last spring frost
May 3
Frost Dates for Hillsboro, WV
First fall frost
Oct 14
Growing season
161 days
Hardiness zone
6b
In an average year around Hillsboro, WV, the last spring frost (32°F) is about May 3 and the first fall frost is about Oct 14, giving roughly a 161-day growing season. To be safe most years, wait until Apr 19 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 30 | May 14 | Apr 28 |
| Freeze (32°F) | May 22 | May 3 | Apr 19 |
| Hard (28°F) | May 12 | Apr 21 | Apr 7 |
| Severe (24°F) | Apr 20 | Apr 5 | Mar 23 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 30 | May 25 | May 22 | May 18 | May 14 | May 11 | May 6 | May 2 | Apr 28 |
| 32°F | May 22 | May 16 | May 12 | May 7 | May 3 | Apr 30 | Apr 27 | Apr 23 | Apr 19 |
| 28°F | May 12 | May 4 | Apr 30 | Apr 25 | Apr 21 | Apr 18 | Apr 15 | Apr 12 | Apr 7 |
| 24°F | Apr 20 | Apr 15 | Apr 12 | Apr 8 | Apr 5 | Apr 3 | Mar 31 | Mar 28 | Mar 23 |
| 20°F | Apr 6 | Apr 2 | Mar 31 | Mar 28 | Mar 25 | Mar 22 | Mar 18 | Mar 14 | Mar 8 |
| 16°F | Mar 27 | Mar 23 | Mar 18 | Mar 15 | Mar 12 | Mar 8 | Mar 4 | Feb 28 | Feb 19 |
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) | Sep 22 | Oct 5 | Oct 18 |
| Freeze (32°F) | Oct 2 | Oct 14 | Oct 27 |
| Hard (28°F) | Oct 9 | Oct 23 | Nov 4 |
| Severe (24°F) | Oct 19 | Nov 1 | Nov 15 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Sep 22 | Sep 27 | Sep 30 | Oct 2 | Oct 5 | Oct 7 | Oct 10 | Oct 13 | Oct 18 |
| 32°F | Oct 2 | Oct 6 | Oct 9 | Oct 12 | Oct 14 | Oct 17 | Oct 20 | Oct 23 | Oct 27 |
| 28°F | Oct 9 | Oct 14 | Oct 17 | Oct 20 | Oct 23 | Oct 26 | Oct 29 | Nov 1 | Nov 4 |
| 24°F | Oct 19 | Oct 24 | Oct 27 | Oct 31 | Nov 1 | Nov 4 | Nov 6 | Nov 10 | Nov 15 |
| 20°F | Oct 30 | Nov 2 | Nov 5 | Nov 8 | Nov 11 | Nov 14 | Nov 18 | Nov 23 | Nov 30 |
| 16°F | Nov 9 | Nov 14 | Nov 18 | Nov 22 | Nov 26 | Nov 30 | Dec 2 | Dec 7 | Dec 14 |
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: Buckeye, Wv, about 10.5 miles away@if(!empty($station['elevation_ft'])), at 2,123 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 Hillsboro, WV?
On average, the last spring frost (32°F) around Hillsboro, WV is about May 3. In cooler years it can run later, so for a safer bet many gardeners wait until Apr 19.
When is the first frost in the fall?
The first fall frost around Hillsboro, WV typically arrives about Oct 14. 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 May 3 on average, or Apr 19 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 161 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 24946 Planting calendar → West Virginia frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026