Last frost date in Decatur, Indiana
April 23
Average last frost in spring. In an early year (1 in 10) it's over by April 7; in a late year (1 in 10) it comes after May 8.
October 19
Average first frost in fall. 1 year in 10 it comes by October 5.
Source: NOAA U.S. Climate Normals 1991–2020, station Decatur 1 N (USC00122096), 1.3 miles from Decatur, elevation 785 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 7 | Apr 23 | May 8 |
| First frost in fall | Oct 5 | Oct 19 | Nov 1 |
Frost-free days in an average year: 178
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 4 | Oct 7 |
| Frost (32°F) | Every year | Apr 23 | Oct 19 |
| Hard freeze (28°F) | Every year | Apr 11 | Oct 31 |
Nights at 32°F or colder in an average year: 127
What to plant now in Decatur
- Spring planting calendar for an average last frost around April 20 Decatur: April 23
- Fall planting calendar for an average first frost around October 20 Decatur: October 19
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 Indiana
- Bluffton 14 mi · last frost Apr 24
- New Haven 17 mi · last frost Apr 27
- Fort Wayne 21 mi · last frost Apr 24
- Huntington 30 mi · last frost May 1
- Columbia City 37 mi · last frost Apr 27
Updated