Last frost date in Delaware, Ohio
April 19
Average last frost in spring. In an early year (1 in 10) it's over by April 5; in a late year (1 in 10) it comes after May 5.
October 26
Average first frost in fall. 1 year in 10 it comes by October 13.
Source: NOAA U.S. Climate Normals 1991–2020, station Marysville (USC00334979), 12 miles from Delaware, elevation 970 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for Marysville, so its frost dates are the same as Delaware's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 5 | Apr 19 | May 5 |
| First frost in fall | Oct 13 | Oct 26 | Nov 7 |
Frost-free days in an average year: 188
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | Apr 30 | Oct 14 |
| Frost (32°F) | Every year | Apr 19 | Oct 26 |
| Hard freeze (28°F) | Every year | Apr 7 | Nov 6 |
Nights at 32°F or colder in an average year: 114
What to plant now in Delaware
- Corn saladSept 15 – Nov 1Now
- Upland cressSept 15 – Nov 1Now
- Rhubarb plantsNov 1 – Dec 1Soon
- Asparagus plantsNov 15 – Jan 1Soon
- Spring planting calendar for an average last frost around April 20 Delaware: April 19
- Fall planting calendar for an average first frost around October 30 Delaware: October 26
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
- Dublin 13 mi · last frost Apr 22
- Westerville 14 mi · last frost Apr 22
- Columbus 21 mi · last frost Apr 20
- Marion 22 mi · last frost Apr 25
- Reynoldsburg 27 mi · last frost Apr 18
Updated