Chilton County, Alabama · Frost dates
Chilton County frost dates.
First-frost, last-frost, and growing-season length for Chilton County, Alabama. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 8a
32°F — light freeze
Last spring frost
- 10%
- 04-10
- 20%
- 04-03
- 50%
- 03-21
- 80%
- 03-07
- 90%
- 02-28
First fall frost
- 10%
- 10-29
- 20%
- 11-01
- 50%
- 11-11
- 80%
- 11-25
- 90%
- 12-01
28°F — killing freeze
Last spring freeze
- 10%
- 03-26
- 20%
- 03-19
- 50%
- 03-07
- 80%
- 02-22
- 90%
- 02-15
First fall freeze
- 10%
- 11-05
- 20%
- 11-11
- 50%
- 11-25
- 80%
- 12-08
- 90%
- 12-21
Growing season length (days, 28°F threshold)
- Short year
- 224
- Median
- 263
- Long year
- 309
Source NOAA station
THORSBY EXP STN, AL US
5.6 mi · 30 yrs of record (1991–2020) · 680 ft elev.
Data from THORSBY EXP STN, AL US, 5.6 miles away with 30-year NOAA record (1991-2020).
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