Last frost date in Marietta, Ohio
April 18
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 4.
October 27
Average first frost in fall. 1 year in 10 it comes by October 13.
Source: NOAA U.S. Climate Normals 1991–2020, station Marietta Wwtp (USC00334927), 1.2 miles from Marietta, elevation 610 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 5 | Apr 18 | May 4 |
| First frost in fall | Oct 13 | Oct 27 | Nov 6 |
Frost-free days in an average year: 191
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | Apr 30 | Oct 16 |
| Frost (32°F) | Every year | Apr 18 | Oct 27 |
| Hard freeze (28°F) | Every year | Apr 5 | Nov 5 |
Nights at 32°F or colder in an average year: 112
What to plant now in Marietta
- 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 Marietta: April 18
- Fall planting calendar for an average first frost around October 30 Marietta: October 27
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
- Athens 36 mi · last frost Apr 25
- Cambridge 42 mi · last frost Apr 28
- Zanesville 48 mi · last frost Apr 26
- Coshocton 62 mi · last frost Apr 27
- Lancaster 65 mi · last frost Apr 22
Updated