Marion County, Tennessee · Frost dates
Marion County frost dates.
First-frost, last-frost, and growing-season length for Marion County, Tennessee. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7a
32°F — light freeze
Last spring frost
- 10%
- 04-13
- 20%
- 04-07
- 50%
- 03-26
- 80%
- 03-13
- 90%
- 03-06
First fall frost
- 10%
- 10-25
- 20%
- 10-30
- 50%
- 11-08
- 80%
- 11-21
- 90%
- 11-29
28°F — killing freeze
Last spring freeze
- 10%
- 04-02
- 20%
- 03-26
- 50%
- 03-12
- 80%
- 02-27
- 90%
- 02-18
First fall freeze
- 10%
- 11-04
- 20%
- 11-10
- 50%
- 11-24
- 80%
- 12-06
- 90%
- 12-13
Growing season length (days, 28°F threshold)
- Short year
- 216
- Median
- 257
- Long year
- 298
Source NOAA station
WHITWELL-SEQUATCHIE VLY, TN US
13.5 mi · 30 yrs of record (1991–2020) · 1020 ft elev.
Data from WHITWELL-SEQUATCHIE VLY, TN US, 13.5 miles away with 30-year NOAA record (1991-2020).
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