Frost dates for 26321Alum Bridge, WV
The average last spring frost in Alum Bridge is April 26 and the average first fall frost is October 23, giving a typical growing season of about 179 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 26
- Average first fall frost
- Oct 23
- Growing season
- 179 days
Safer after May 13 (1-in-10 risk)
Possible by Oct 8 (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 22 · May 6 · May 23 | Oct 1 · Oct 12 · Oct 25 | 160 days | 100% |
| Frost / freeze (32°F) | Apr 15 · Apr 26 · May 13 | Oct 8 · Oct 23 · Nov 3 | 179 days | 100% |
| Hard freeze (28°F) | Mar 31 · Apr 15 · Apr 29 | Oct 16 · Oct 31 · Nov 13 | 201 days | 100% |
Planting calendar for Alum Bridge
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 3 |
| 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 13 |
| Summer squash | Sow outdoors | May 12 – Jun 26 |
| Winter squash & pumpkins | Sow outdoors | May 26 – Jun 26 |
| Snap beans | Sow outdoors | May 12 – Aug 5 |
| Sweet corn | Sow outdoors | May 12 – Jul 3 |
| 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 23 – Jul 3 |
| Broccoli | Transplant outdoors (fall) | Jul 23 – Aug 3 |
| Cabbage | Start seeds indoors (spring) | Feb 26 – Mar 26 |
| Cabbage | Transplant outdoors (spring) | Mar 26 – Apr 26 |
| Cabbage | Start seeds indoors (fall) | Jun 13 – Jul 13 |
| Cabbage | Transplant outdoors (fall) | Jul 13 – Aug 13 |
| Leaf lettuce | Sow outdoors (spring) | Mar 26 – Jun 11 |
| Leaf lettuce | Sow outdoors (fall) | Jul 13 – Aug 29 |
| Spinach | Sow outdoors (spring) | Mar 19 – May 2 |
| Spinach | Sow outdoors (fall) | Jul 30 – Sep 3 |
| Radishes | Sow outdoors (spring) | Mar 26 – May 16 |
| Radishes | Sow outdoors (fall) | Jul 13 – Sep 13 |
| Kale | Sow outdoors (spring) | Apr 12 – May 2 |
| Kale | Sow outdoors (fall) | Jul 6 – Aug 13 |
| Carrots | Sow outdoors (spring) | Apr 26 – Jun 11 |
| Carrots | Sow outdoors (fall) | Jun 13 – Jul 29 |
| Garlic | Plant outdoors (fall) | Oct 13 – Nov 13 |
Where these dates come from
ZIP code 26321 is matched to the NOAA station Stonewall Jackson Dam, WV, 19 km away, at 1,045 ft elevation (31 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Stonewall Jackson Dam, WV (used) | 1,045 ft | Apr 26 | Oct 23 |
| Glenville, WV | 738 ft | Apr 25 | Oct 24 |
| Weston, WV | 1,023 ft | Apr 23 | Oct 26 |
| W Union 2, WV | 806 ft | Apr 28 | Oct 21 |
Frost dates near Alum Bridge
- Troy, WV 26443 · last Apr 23, first Oct 26
- Camden, WV 26338 · last Apr 23, first Oct 26
- Linn, WV 26384 · last Apr 25, first Oct 24
- Coxs Mills, WV 26342 · last Apr 25, first Oct 24
- Sand Fork, WV 26430 · last Apr 25, first Oct 24
- New Milton, WV 26411 · last Apr 28, first Oct 21
- Glenville, WV 26351 · last Apr 25, first Oct 24
- Auburn, WV 26325 · last Apr 26, first Oct 17
Frequently asked questions
- When is the last frost in Alum Bridge, WV?
- For ZIP code 26321, the average last spring frost (32°F) is April 26, based on NOAA 1991-2020 climate normals for the Stonewall Jackson Dam, WV weather station. There is a 1-in-10 chance of a frost after May 13.
- When is the first frost in Alum Bridge, WV?
- The average first fall frost (32°F) is October 23. There is a 1-in-10 chance of frost by October 8, so tender plants are at risk from that point on.
- How long is the growing season in 26321?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 179 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.