Last frost date in Wilmington, Ohio
April 17
Average last frost in spring. In an early year (1 in 10) it's over by April 3; in a late year (1 in 10) it comes after May 4.
October 22
Average first frost in fall. 1 year in 10 it comes by October 9.
Source: NOAA U.S. Climate Normals 1991–2020, station WFO Wilmington (USC00339220), 0.6 miles from Wilmington, elevation 1,053 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 3 | Apr 17 | May 4 |
| First frost in fall | Oct 9 | Oct 22 | Nov 3 |
Frost-free days in an average year: 187
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | Apr 28 | Oct 11 |
| Frost (32°F) | Every year | Apr 17 | Oct 22 |
| Hard freeze (28°F) | Every year | Apr 4 | Nov 1 |
Nights at 32°F or colder in an average year: 105
What to plant now in Wilmington
- Spring planting calendar for an average last frost around April 20 Wilmington: April 17
- Fall planting calendar for an average first frost around October 20 Wilmington: October 22
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.
Nearby in Ohio
- Xenia 19 mi · last frost Apr 18
- Washington Court House 22 mi · last frost Apr 23
- Centerville 23 mi · last frost Apr 17
- Fairborn 28 mi · last frost Apr 24
- Middletown 30 mi · last frost Apr 24
Updated