Coles County, Illinois · Frost dates
Coles County frost dates.
First-frost, last-frost, and growing-season length for Coles County, Illinois. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6a
32°F — light freeze
Last spring frost
- 10%
- 05-03
- 20%
- 04-26
- 50%
- 04-15
- 80%
- 04-06
- 90%
- 04-01
First fall frost
- 10%
- 10-09
- 20%
- 10-13
- 50%
- 10-23
- 80%
- 10-31
- 90%
- 11-04
28°F — killing freeze
Last spring freeze
- 10%
- 04-20
- 20%
- 04-14
- 50%
- 04-03
- 80%
- 03-26
- 90%
- 03-20
First fall freeze
- 10%
- 10-19
- 20%
- 10-24
- 50%
- 11-02
- 80%
- 11-10
- 90%
- 11-16
Growing season length (days, 28°F threshold)
- Short year
- 182
- Median
- 213
- Long year
- 241
Source NOAA station
CHARLESTON, IL US
3.9 mi · 30 yrs of record (1991–2020) · 700 ft elev.
Data from CHARLESTON, IL US, 3.9 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
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