Last frost date in Mount Vernon, Ohio
May 1
Average last frost in spring. In an early year (1 in 10) it's over by April 18; in a late year (1 in 10) it comes after May 18.
October 10
Average first frost in fall. 1 year in 10 it comes by September 27.
Source: NOAA U.S. Climate Normals 1991–2020, station Fredericktown 4 S (USC00332956), 3.8 miles from Mount Vernon, elevation 1,050 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 18 | May 1 | May 18 |
| First frost in fall | Sept 27 | Oct 10 | Oct 24 |
Frost-free days in an average year: 161
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 10 | Sept 30 |
| Frost (32°F) | Every year | May 1 | Oct 10 |
| Hard freeze (28°F) | Every year | Apr 21 | Oct 23 |
Nights at 32°F or colder in an average year: 148
What to plant now in Mount Vernon
- Spring planting calendar for an average last frost around April 30 Mount Vernon: May 1
- Fall planting calendar for an average first frost around October 10 Mount Vernon: October 10
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
- Newark 22 mi · last frost Apr 29
- Heath 25 mi · last frost Apr 22
- Mansfield 27 mi · last frost Apr 26
- Galion 29 mi · last frost Apr 26
- Westerville 29 mi · last frost Apr 22
Updated