McNairy County, Tennessee · Frost dates
McNairy County frost dates.
First-frost, last-frost, and growing-season length for McNairy County, Tennessee. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7a
32°F — light freeze
Last spring frost
- 10%
- 04-20
- 20%
- 04-16
- 50%
- 04-06
- 80%
- 03-26
- 90%
- 03-19
First fall frost
- 10%
- 10-18
- 20%
- 10-22
- 50%
- 10-30
- 80%
- 11-06
- 90%
- 11-12
28°F — killing freeze
Last spring freeze
- 10%
- 04-11
- 20%
- 04-05
- 50%
- 03-24
- 80%
- 03-11
- 90%
- 03-04
First fall freeze
- 10%
- 10-28
- 20%
- 11-01
- 50%
- 11-09
- 80%
- 11-19
- 90%
- 11-26
Growing season length (days, 28°F threshold)
- Short year
- 200
- Median
- 230
- Long year
- 267
Source NOAA station
SELMER, TN US
2.1 mi · 30 yrs of record (1991–2020) · 470 ft elev.
Data from SELMER, TN US, 2.1 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
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