Frost dates in Clark County, Illinois
The average last spring frost in Clark County falls Apr 12 to Apr 21 and the average first fall frost Oct 19 to Oct 23, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6a to 6b. Places: Casey, Marshall, Martinsville, West Union, West York, Westfield. 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 |
|---|---|---|---|---|
| 62420 | Casey | Apr 14 | Oct 20 | 6b |
| 62423 | Apr 15 | Oct 19 | 6a | |
| 62441 | Marshall | Apr 21 | Oct 20 | 6a |
| 62442 | Martinsville | Apr 14 | Oct 20 | 6b |
| 62474 | Westfield | Apr 15 | Oct 23 | 6a |
| 62477 | West Union | Apr 12 | Oct 22 | 6b |
| 62478 | West York | Apr 13 | Oct 22 | 6b |
Nearby counties
Crawford County Edgar County Coles County Cumberland County Jasper County Douglas 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.
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.