Will County, Illinois · Frost dates
Will County frost dates.
First-frost, last-frost, and growing-season length for Will County, Illinois. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6a
32°F — light freeze
Last spring frost
- 10%
- 05-07
- 20%
- 04-30
- 50%
- 04-19
- 80%
- 04-09
- 90%
- 04-03
First fall frost
- 10%
- 10-12
- 20%
- 10-17
- 50%
- 10-25
- 80%
- 11-01
- 90%
- 11-06
28°F — killing freeze
Last spring freeze
- 10%
- 04-21
- 20%
- 04-16
- 50%
- 04-05
- 80%
- 03-28
- 90%
- 03-22
First fall freeze
- 10%
- 10-23
- 20%
- 10-27
- 50%
- 11-04
- 80%
- 11-14
- 90%
- 11-21
Growing season length (days, 28°F threshold)
- Short year
- 185
- Median
- 213
- Long year
- 244
Source NOAA station
JOLIET BRANDON RD DAM, IL US
7.5 mi · 30 yrs of record (1991–2020) · 543 ft elev.
Data from JOLIET BRANDON RD DAM, IL US, 7.5 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
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