Last frost date in Evanston, Illinois
April 26
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 21
Average first frost in fall. 1 year in 10 it comes by October 5.
Source: NOAA U.S. Climate Normals 1991–2020, station Chicago Botanic Garden (USC00111497), 8 miles from Evanston, elevation 630 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for Deerfield, Glenview, Highland Park, Lake Forest, Lincolnwood, Morton Grove, Northbrook, Skokie, Wilmette and Winnetka, so their frost dates are the same as Evanston's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Apr 11 | Apr 26 | May 11 |
| First frost in fall | Oct 5 | Oct 21 | Nov 2 |
Frost-free days in an average year: 176
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | Every year | May 8 | Oct 10 |
| Frost (32°F) | Every year | Apr 26 | Oct 21 |
| Hard freeze (28°F) | Every year | Apr 13 | Nov 1 |
Nights at 32°F or colder in an average year: 128
What to plant now in Evanston
- Spring planting calendar for an average last frost around April 30 Evanston: April 26
- Fall planting calendar for an average first frost around October 20 Evanston: October 21
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
- Des Plaines 11 mi · last frost Apr 16
- Cicero 14 mi · last frost Apr 11
- Chicago 14 mi · last frost Apr 10
- Arlington Heights 15 mi · last frost Apr 19
- Palatine 19 mi · last frost Apr 25
Updated