Champaign County, Illinois · Frost dates

Champaign County frost dates.

First-frost, last-frost, and growing-season length for Champaign County, Illinois. Sourced from NOAA 1991-2020 Climate Normals.

Data confidence: high · USDA zone: 6a

32°F — light freeze

Last spring frost

10%
04-29
20%
04-24
50%
04-15
80%
04-05
90%
04-01

First fall frost

10%
10-11
20%
10-16
50%
10-24
80%
10-31
90%
11-05

28°F — killing freeze

Last spring freeze

10%
04-19
20%
04-14
50%
04-04
80%
03-26
90%
03-20

First fall freeze

10%
10-22
20%
10-26
50%
11-02
80%
11-11
90%
11-16

Growing season length (days, 28°F threshold)

Short year
186
Median
212
Long year
241

Source NOAA station

CHAMPAIGN 3S, IL US

4.4 mi · 30 yrs of record (19912020) · 721 ft elev.

Data from CHAMPAIGN 3S, IL US, 4.4 miles away with 30-year NOAA record (1991-2020).

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