Saline County, Illinois · Frost dates
Saline County frost dates.
First-frost, last-frost, and growing-season length for Saline County, Illinois. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6a
32°F — light freeze
Last spring frost
- 10%
- 04-25
- 20%
- 04-18
- 50%
- 04-07
- 80%
- 03-28
- 90%
- 03-21
First fall frost
- 10%
- 10-10
- 20%
- 10-16
- 50%
- 10-26
- 80%
- 11-03
- 90%
- 11-08
28°F — killing freeze
Last spring freeze
- 10%
- 04-12
- 20%
- 04-05
- 50%
- 03-26
- 80%
- 03-14
- 90%
- 03-07
First fall freeze
- 10%
- 10-23
- 20%
- 10-28
- 50%
- 11-06
- 80%
- 11-18
- 90%
- 11-25
Growing season length (days, 28°F threshold)
- Short year
- 194
- Median
- 225
- Long year
- 263
Source NOAA station
HARRISBURG, IL US
1.3 mi · 30 yrs of record (1991–2020) · 365 ft elev.
Data from HARRISBURG, IL US, 1.3 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
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