McLean County, Kentucky · Frost dates
McLean County frost dates.
First-frost, last-frost, and growing-season length for McLean County, Kentucky. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6b
32°F — light freeze
Last spring frost
- 10%
- 04-20
- 20%
- 04-14
- 50%
- 04-02
- 80%
- 03-23
- 90%
- 03-17
First fall frost
- 10%
- 10-19
- 20%
- 10-24
- 50%
- 11-01
- 80%
- 11-09
- 90%
- 11-15
28°F — killing freeze
Last spring freeze
- 10%
- 04-10
- 20%
- 04-03
- 50%
- 03-23
- 80%
- 03-10
- 90%
- 03-04
First fall freeze
- 10%
- 10-29
- 20%
- 11-01
- 50%
- 11-10
- 80%
- 11-23
- 90%
- 11-30
Growing season length (days, 28°F threshold)
- Short year
- 202
- Median
- 232
- Long year
- 271
Source NOAA station
CALHOUN LOCK 2, KY US
0.4 mi · 30 yrs of record (1991–2020) · 402 ft elev.
Data from CALHOUN LOCK 2, KY US, 0.4 miles away with 30-year NOAA record (1991-2020).
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