Frost dates in McLean County, Illinois

Sandstone canyon wall and still pool at Starved Rock State Park, Illinois — Photo: B3thedw, CC BY-SA 4.0, via Wikimedia Commons

The average last spring frost in McLean County falls Apr 21 to Apr 25 and the average first fall frost Oct 15 to Oct 20, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5b to 6a. Places: Anchor, Arrowsmith, Bellflower, Bloomington, Chenoa, Colfax. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.

ZIP	Place	Last spring frost	First fall frost	Zone
61701	Bloomington	Apr 21	Oct 20	6a
61704	Bloomington	Apr 25	Oct 16	6a
61705	Twin Grove	Apr 21	Oct 20	6a
61720	Anchor	Apr 21	Oct 17	6a
61722	Arrowsmith	Apr 21	Oct 17	6a
61724	Bellflower	Apr 21	Oct 17	6a
61726	Chenoa	Apr 23	Oct 15	5b
61728	Colfax	Apr 23	Oct 15	6a
61730	Cooksville	Apr 25	Oct 16	6a
61731		Apr 21	Oct 17	6a
61732	Danvers	Apr 21	Oct 17	5b
61736	Downs	Apr 25	Oct 16	6a
61737	Ellsworth	Apr 25	Oct 16	6a
61744	Gridley	Apr 23	Oct 15	5b
61745	Heyworth	Apr 21	Oct 20	6a
61748	Hudson	Apr 25	Oct 16	6a
61752	Le Roy	Apr 25	Oct 16	6a
61753	Lexington	Apr 23	Oct 15	6a
61754	McLean	Apr 21	Oct 20	6a
61761	Normal	Apr 25	Oct 16	6a
61770	Saybrook	Apr 21	Oct 17	6a
61772	Shirley	Apr 21	Oct 20	6a
61774	Stanford	Apr 21	Oct 20	6a
61776	Towanda	Apr 25	Oct 16	6a

Nearby counties

De Witt County Woodford County Livingston County Ford County Tazewell County Logan County

All Illinois counties · Download Illinois frost dates (CSV)

Never miss a frost: get The Dial

Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.

Freeze alerts
Soil-temp heads-up
Weekly yard to-dos

Free. One weekly email plus alerts when your ZIP has a frost or a soil-temperature change worth acting on. After you submit, Kit (our email provider) sends a confirmation email: check your email and click the link to confirm. You aren't subscribed until you do. We collect only your email address and ZIP, sent to Kit to deliver The Dial. Unsubscribe anytime.