Bloomington, IL Frost Dates
The last spring frost in Bloomington usually comes around April 25 and the first fall frost around October 16.
| Spring (last) | Fall (first) | |
|---|---|---|
| Frost, 32°F | April 25 | October 16 |
| Hard freeze, 28°F | April 14 | October 27 |
Growing season: about 172 days.
Frequently asked questions
When is the last frost in Bloomington, IL?
The median date of the last spring frost (32°F) is April 25. In half of years the last frost comes earlier and in half it comes later, so waiting a week or two past April 25 lowers the risk for tender plants.
When is the first frost in Bloomington?
The median date of the first fall frost (32°F) is October 16, and a hard freeze (28°F) usually follows around October 27.
How long is the growing season in Bloomington?
About 172 days between the median last spring frost and first fall frost.
NOAA NCEI U.S. Climate Normals 1991-2020, station USC00116200. Median (50% probability) dates. Low spots and valleys can frost later in spring and earlier in fall than the station.