Grundy County, Tennessee · Frost dates
Grundy County frost dates.
First-frost, last-frost, and growing-season length for Grundy County, Tennessee. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7a
32°F — light freeze
Last spring frost
- 10%
- 05-10
- 20%
- 05-03
- 50%
- 04-21
- 80%
- 04-08
- 90%
- 04-01
First fall frost
- 10%
- 10-07
- 20%
- 10-11
- 50%
- 10-20
- 80%
- 10-29
- 90%
- 11-02
28°F — killing freeze
Last spring freeze
- 10%
- 04-29
- 20%
- 04-20
- 50%
- 04-07
- 80%
- 03-26
- 90%
- 03-20
First fall freeze
- 10%
- 10-16
- 20%
- 10-20
- 50%
- 10-30
- 80%
- 11-09
- 90%
- 11-15
Growing season length (days, 28°F threshold)
- Short year
- 170
- Median
- 206
- Long year
- 240
Source NOAA station
COALMONT, TN US
1.8 mi · 30 yrs of record (1991–2020) · 1856 ft elev.
Data from COALMONT, TN US, 1.8 miles away with 30-year NOAA record (1991-2020).
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