Last frost date in Chicago, Illinois
April 10
Average last frost in spring. In an early year (1 in 10) it's over by March 29; in a late year (1 in 10) it comes after April 25.
November 5
Average first frost in fall. 1 year in 10 it comes by October 24.
Source: NOAA U.S. Climate Normals 1991–2020, station Chicago Northerly Is (USC00111550), 4.1 miles from Chicago, elevation 583 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Mar 29 | Apr 10 | Apr 25 |
| First frost in fall | Oct 24 | Nov 5 | Nov 20 |
Frost-free days in an average year: 208
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | Apr 23 | Oct 26 |
| Frost (32°F) | Every year | Apr 10 | Nov 5 |
| Hard freeze (28°F) | Every year | Apr 1 | Nov 15 |
Nights at 32°F or colder in an average year: 97
What to plant now in Chicago
- Mustard greensAug 15 – Nov 1Now
- Garden peasSept 1 – Nov 1Now
- ParsleySept 1 – Nov 15Now
- RadishesSept 1 – Nov 15Now
- SpinachSept 15 – Nov 1Now
- Corn saladOct 1 – Dec 1Now
- Onion setsOct 1 – Dec 1Now
- Upland cressOct 1 – Dec 1Now
- Asparagus plantsDec 1 – Jan 1Soon
- Spring planting calendar for an average last frost around April 10 Chicago: April 10
- Fall planting calendar for an average first frost around November 10 Chicago: November 5
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
- Cicero 4 mi · last frost Apr 11
- Oak Lawn 9 mi · last frost Apr 10
- Evanston 14 mi · last frost Apr 26
- Des Plaines 18 mi · last frost Apr 16
- Orland Park 18 mi · last frost Apr 19
Updated