Frost dates for 26354Grafton, WV
The average last spring frost in Grafton is April 26 and the average first fall frost is October 22, giving a typical growing season of about 178 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 26
- Average first fall frost
- Oct 22
- Growing season
- 178 days
Safer after May 14 (1-in-10 risk)
Possible by Oct 10 (1-in-10 risk)
Last frost typically in 174 days
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | Apr 23 · May 6 · May 24 | Oct 1 · Oct 12 · Oct 24 | 158 days | 100% |
| Frost / freeze (32°F) | Apr 12 · Apr 26 · May 14 | Oct 10 · Oct 22 · Nov 3 | 178 days | 100% |
| Hard freeze (28°F) | Mar 31 · Apr 12 · May 1 | Oct 19 · Nov 1 · Nov 15 | 202 days | 100% |
Planting calendar for Grafton
Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.
| Crop | Task | Window |
|---|---|---|
| Tomatoes | Start seeds indoors | Mar 26 – Jun 1 |
| Tomatoes | Transplant outdoors | May 12 – Jul 2 |
| Peppers | Start seeds indoors | Mar 26 – Apr 26 |
| Peppers | Transplant outdoors | May 26 – Jun 26 |
| Eggplant | Start seeds indoors | Apr 12 – May 11 |
| Eggplant | Transplant outdoors | May 26 – Jun 26 |
| Cucumbers | Sow outdoors | May 26 – Jul 12 |
| Summer squash | Sow outdoors | May 12 – Jun 26 |
| Winter squash & pumpkins | Sow outdoors | May 26 – Jun 26 |
| Snap beans | Sow outdoors | May 12 – Aug 4 |
| Sweet corn | Sow outdoors | May 12 – Jul 2 |
| Watermelon & cantaloupe | Sow outdoors | May 26 – Jun 26 |
| Okra | Sow outdoors | May 19 – Jun 11 |
| Peas | Sow outdoors (spring) | Mar 26 – May 11 |
| Potatoes | Plant outdoors (spring) | Mar 26 – May 26 |
| Onions | Start seeds indoors (spring) | Feb 12 – Mar 11 |
| Onions | Transplant outdoors (spring) | Apr 12 – May 11 |
| Broccoli | Start seeds indoors (spring) | Mar 8 – Apr 11 |
| Broccoli | Transplant outdoors (spring) | Apr 12 – May 11 |
| Broccoli | Start seeds indoors (fall) | Jun 22 – Jul 2 |
| Broccoli | Transplant outdoors (fall) | Jul 22 – Aug 2 |
| Cabbage | Start seeds indoors (spring) | Feb 26 – Mar 26 |
| Cabbage | Transplant outdoors (spring) | Mar 26 – Apr 26 |
| Cabbage | Start seeds indoors (fall) | Jun 12 – Jul 12 |
| Cabbage | Transplant outdoors (fall) | Jul 12 – Aug 12 |
| Leaf lettuce | Sow outdoors (spring) | Mar 26 – Jun 11 |
| Leaf lettuce | Sow outdoors (fall) | Jul 12 – Aug 28 |
| Spinach | Sow outdoors (spring) | Mar 19 – May 2 |
| Spinach | Sow outdoors (fall) | Jul 29 – Sep 2 |
| Radishes | Sow outdoors (spring) | Mar 26 – May 16 |
| Radishes | Sow outdoors (fall) | Jul 12 – Sep 12 |
| Kale | Sow outdoors (spring) | Apr 12 – May 2 |
| Kale | Sow outdoors (fall) | Jul 5 – Aug 12 |
| Carrots | Sow outdoors (spring) | Apr 26 – Jun 11 |
| Carrots | Sow outdoors (fall) | Jun 12 – Jul 28 |
| Garlic | Plant outdoors (fall) | Oct 12 – Nov 12 |
Where these dates come from
ZIP code 26354 is matched to the NOAA station Tygart Dam, WV, 3.1 km away, at 1,235 ft elevation (195 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Tygart Dam, WV (used) | 1,235 ft | Apr 26 | Oct 22 |
| Fairmont, WV | 1,300 ft | Apr 18 | Oct 28 |
| Clarksburg Benedum Ap, WV | 1,203 ft | Apr 18 | Oct 24 |
| Clarksburg 1, WV | 990 ft | Apr 22 | Oct 23 |
Frost dates near Grafton
- Simpson, WV 26435 · last Apr 26, first Oct 22
- Thornton, WV 26440 · last Apr 26, first Oct 22
- Flemington, WV 26347 · last Apr 18, first Oct 24
- Colfax, WV 26566 · last Apr 18, first Oct 28
- Rosemont, WV 26424 · last Apr 18, first Oct 24
- Galloway, WV 26349 · last Apr 18, first Oct 24
- Moatsville, WV 26405 · last Apr 24, first Oct 24
- Independence, WV 26374 · last Apr 28, first Oct 23
Frequently asked questions
- When is the last frost in Grafton, WV?
- For ZIP code 26354, the average last spring frost (32°F) is April 26, based on NOAA 1991-2020 climate normals for the Tygart Dam, WV weather station. There is a 1-in-10 chance of a frost after May 14.
- When is the first frost in Grafton, WV?
- The average first fall frost (32°F) is October 22. There is a 1-in-10 chance of frost by October 10, so tender plants are at risk from that point on.
- How long is the growing season in 26354?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 178 days long.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.