Smyth County, Virginia · Frost dates
Smyth County frost dates.
First-frost, last-frost, and growing-season length for Smyth County, Virginia. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7a
32°F — light freeze
Last spring frost
- 10%
- 05-10
- 20%
- 05-04
- 50%
- 04-23
- 80%
- 04-15
- 90%
- 04-10
First fall frost
- 10%
- 10-08
- 20%
- 10-12
- 50%
- 10-20
- 80%
- 10-29
- 90%
- 11-01
28°F — killing freeze
Last spring freeze
- 10%
- 04-23
- 20%
- 04-19
- 50%
- 04-09
- 80%
- 03-31
- 90%
- 03-25
First fall freeze
- 10%
- 10-14
- 20%
- 10-19
- 50%
- 10-29
- 80%
- 11-05
- 90%
- 11-09
Growing season length (days, 28°F threshold)
- Short year
- 174
- Median
- 203
- Long year
- 229
Source NOAA station
SALTVILLE 1N, VA US
13.2 mi · 30 yrs of record (1991–2020) · 1733 ft elev.
Data from SALTVILLE 1N, VA US, 13.2 miles away with 30-year NOAA record (1991-2020).
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