Pulaski County, Illinois · Frost dates
Pulaski County frost dates.
First-frost, last-frost, and growing-season length for Pulaski 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%
- 04-03
- 80%
- 03-23
- 90%
- 03-17
First fall frost
- 10%
- 10-23
- 20%
- 10-27
- 50%
- 11-05
- 80%
- 11-15
- 90%
- 11-22
28°F — killing freeze
Last spring freeze
- 10%
- 04-07
- 20%
- 04-02
- 50%
- 03-22
- 80%
- 03-10
- 90%
- 03-02
First fall freeze
- 10%
- 11-03
- 20%
- 11-06
- 50%
- 11-17
- 80%
- 11-29
- 90%
- 12-04
Growing season length (days, 28°F threshold)
- Short year
- 210
- Median
- 240
- Long year
- 277
Source NOAA station
GRAND CHAIN DAM 53, IL US
4.8 mi · 30 yrs of record (1991–2020) · 385 ft elev.
Data from GRAND CHAIN DAM 53, IL US, 4.8 miles away with 30-year NOAA record (1991-2020).
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