Gallatin County, Illinois · Frost dates
Gallatin County frost dates.
First-frost, last-frost, and growing-season length for Gallatin County, Illinois. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6a
32°F — light freeze
Last spring frost
- 10%
- 04-21
- 20%
- 04-14
- 50%
- 04-05
- 80%
- 03-26
- 90%
- 03-21
First fall frost
- 10%
- 10-19
- 20%
- 10-23
- 50%
- 10-31
- 80%
- 11-07
- 90%
- 11-11
28°F — killing freeze
Last spring freeze
- 10%
- 04-09
- 20%
- 04-03
- 50%
- 03-24
- 80%
- 03-12
- 90%
- 03-06
First fall freeze
- 10%
- 10-30
- 20%
- 11-01
- 50%
- 11-08
- 80%
- 11-18
- 90%
- 11-26
Growing season length (days, 28°F threshold)
- Short year
- 204
- Median
- 229
- Long year
- 265
Source NOAA station
JT MYERS LOCKS & DAM, IN US
13.0 mi · 30 yrs of record (1991–2020) · 340 ft elev.
Data from JT MYERS LOCKS & DAM, IN US, 13 miles away with 30-year NOAA record (1991-2020).
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