Smith County, Tennessee · Frost dates
Smith County frost dates.
First-frost, last-frost, and growing-season length for Smith County, Tennessee. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7a
32°F — light freeze
Last spring frost
- 10%
- 04-27
- 20%
- 04-21
- 50%
- 04-10
- 80%
- 03-31
- 90%
- 03-26
First fall frost
- 10%
- 10-17
- 20%
- 10-22
- 50%
- 10-29
- 80%
- 11-06
- 90%
- 11-11
28°F — killing freeze
Last spring freeze
- 10%
- 04-14
- 20%
- 04-08
- 50%
- 03-30
- 80%
- 03-17
- 90%
- 03-09
First fall freeze
- 10%
- 10-26
- 20%
- 10-31
- 50%
- 11-08
- 80%
- 11-18
- 90%
- 11-24
Growing season length (days, 28°F threshold)
- Short year
- 195
- Median
- 223
- Long year
- 260
Source NOAA station
CARTHAGE, TN US
0.8 mi · 30 yrs of record (1991–2020) · 515 ft elev.
Data from CARTHAGE, TN US, 0.8 miles away with 30-year NOAA record (1991-2020).
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