Hardin County, Tennessee · Frost dates
Hardin County frost dates.
First-frost, last-frost, and growing-season length for Hardin County, Tennessee. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7a
32°F — light freeze
Last spring frost
- 10%
- 04-15
- 20%
- 04-10
- 50%
- 03-31
- 80%
- 03-20
- 90%
- 03-13
First fall frost
- 10%
- 10-18
- 20%
- 10-22
- 50%
- 11-01
- 80%
- 11-10
- 90%
- 11-16
28°F — killing freeze
Last spring freeze
- 10%
- 04-05
- 20%
- 03-30
- 50%
- 03-18
- 80%
- 03-05
- 90%
- 02-28
First fall freeze
- 10%
- 10-25
- 20%
- 10-31
- 50%
- 11-11
- 80%
- 11-23
- 90%
- 12-01
Growing season length (days, 28°F threshold)
- Short year
- 203
- Median
- 238
- Long year
- 276
Source NOAA station
SAVANNAH 6 SW, TN US
8.4 mi · 30 yrs of record (1991–2020) · 420 ft elev.
Data from SAVANNAH 6 SW, TN US, 8.4 miles away with 30-year NOAA record (1991-2020).
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