Last frost date in Ironton, Ohio
April 22
Average last frost in spring. In an early year (1 in 10) it's over by April 6; in a late year (1 in 10) it comes after May 11.
October 23
Average first frost in fall. 1 year in 10 it comes by October 11.
Source: NOAA U.S. Climate Normals 1991–2020, station Ashland (USC00150254), 6.5 miles from Ironton, elevation 560 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 6 | Apr 22 | May 11 |
| First frost in fall | Oct 11 | Oct 23 | Nov 3 |
Frost-free days in an average year: 181
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 4 | Oct 14 |
| Frost (32°F) | Every year | Apr 22 | Oct 23 |
| Hard freeze (28°F) | Every year | Apr 8 | Nov 1 |
Nights at 32°F or colder in an average year: 125
What to plant now in Ironton
- Spring planting calendar for an average last frost around April 20 Ironton: April 22
- Fall planting calendar for an average first frost around October 20 Ironton: October 23
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
- Portsmouth 21 mi · last frost Apr 17
- Chillicothe 58 mi · last frost Apr 20
- Athens 63 mi · last frost Apr 25
- Circleville 75 mi · last frost Apr 17
- Washington Court House 80 mi · last frost Apr 23
Updated