Blount County, Tennessee · Frost dates
Blount County frost dates.
First-frost, last-frost, and growing-season length for Blount County, Tennessee. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7a
32°F — light freeze
Last spring frost
- 10%
- 04-17
- 20%
- 04-12
- 50%
- 04-01
- 80%
- 03-19
- 90%
- 03-14
First fall frost
- 10%
- 10-21
- 20%
- 10-25
- 50%
- 11-02
- 80%
- 11-10
- 90%
- 11-15
28°F — killing freeze
Last spring freeze
- 10%
- 04-05
- 20%
- 04-01
- 50%
- 03-19
- 80%
- 03-06
- 90%
- 02-28
First fall freeze
- 10%
- 11-01
- 20%
- 11-04
- 50%
- 11-13
- 80%
- 11-23
- 90%
- 12-01
Growing season length (days, 28°F threshold)
- Short year
- 210
- Median
- 239
- Long year
- 276
Source NOAA station
KNOXVILLE MCGHEE TYSON AP, TN US
9.6 mi · 30 yrs of record (1991–2020) · 962 ft elev.
Data from KNOXVILLE MCGHEE TYSON AP, TN US, 9.6 miles away with 30-year NOAA record (1991-2020).
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