DeKalb County, Tennessee · Frost dates
DeKalb County frost dates.
First-frost, last-frost, and growing-season length for DeKalb County, Tennessee. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7a
32°F — light freeze
Last spring frost
- 10%
- 05-02
- 20%
- 04-28
- 50%
- 04-18
- 80%
- 04-08
- 90%
- 04-02
First fall frost
- 10%
- 10-10
- 20%
- 10-15
- 50%
- 10-22
- 80%
- 10-31
- 90%
- 11-04
28°F — killing freeze
Last spring freeze
- 10%
- 04-20
- 20%
- 04-14
- 50%
- 04-04
- 80%
- 03-24
- 90%
- 03-18
First fall freeze
- 10%
- 10-19
- 20%
- 10-22
- 50%
- 11-01
- 80%
- 11-08
- 90%
- 11-13
Growing season length (days, 28°F threshold)
- Short year
- 182
- Median
- 211
- Long year
- 240
Source NOAA station
SMITHVILLE 2 SE, TN US
3.7 mi · 30 yrs of record (1991–2020) · 890 ft elev.
Data from SMITHVILLE 2 SE, TN US, 3.7 miles away with 30-year NOAA record (1991-2020).
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