Last frost date in Bloomington, Illinois
April 25
Average last frost in spring. In an early year (1 in 10) it's over by April 11; in a late year (1 in 10) it comes after May 11.
October 16
Average first frost in fall. 1 year in 10 it comes by October 2.
Source: NOAA U.S. Climate Normals 1991–2020, station Normal 4NE (USC00116200), 5.2 miles from Bloomington, elevation 790 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for Normal, so its frost dates are the same as Bloomington's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 11 | Apr 25 | May 11 |
| First frost in fall | Oct 2 | Oct 16 | Oct 29 |
Frost-free days in an average year: 172
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 4 | Oct 5 |
| Frost (32°F) | Every year | Apr 25 | Oct 16 |
| Hard freeze (28°F) | Every year | Apr 14 | Oct 27 |
Nights at 32°F or colder in an average year: 133
What to plant now in Bloomington
- Spring planting calendar for an average last frost around April 20 Bloomington: April 25
- Fall planting calendar for an average first frost around October 20 Bloomington: October 16
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 Illinois
Updated