Last frost date in Troy, 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 5.
October 23
Average first frost in fall. 1 year in 10 it comes by October 9.
Source: NOAA U.S. Climate Normals 1991–2020, station Piqua Wwtp (USC00336650), 6.3 miles from Troy, elevation 853 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for Piqua, so its frost dates are the same as Troy's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 5 | Apr 18 | May 5 |
| First frost in fall | Oct 9 | Oct 23 | Nov 4 |
Frost-free days in an average year: 186
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | Apr 29 | Oct 13 |
| Frost (32°F) | Every year | Apr 18 | Oct 23 |
| Hard freeze (28°F) | Every year | Apr 5 | Nov 3 |
Nights at 32°F or colder in an average year: 111
What to plant now in Troy
- Spring planting calendar for an average last frost around April 20 Troy: April 18
- Fall planting calendar for an average first frost around October 20 Troy: 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
- Huber Heights 14 mi · last frost Apr 16
- Sidney 17 mi · last frost Apr 27
- Dayton 18 mi · last frost Apr 18
- Fairborn 20 mi · last frost Apr 24
- Greenville 22 mi · last frost Apr 21
Updated