Roanoke County, Virginia · Frost dates
Roanoke County frost dates.
First-frost, last-frost, and growing-season length for Roanoke County, Virginia. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7a
32°F — light freeze
Last spring frost
- 10%
- 04-18
- 20%
- 04-13
- 50%
- 04-03
- 80%
- 03-25
- 90%
- 03-19
First fall frost
- 10%
- 10-18
- 20%
- 10-24
- 50%
- 11-01
- 80%
- 11-10
- 90%
- 11-15
28°F — killing freeze
Last spring freeze
- 10%
- 04-07
- 20%
- 04-01
- 50%
- 03-22
- 80%
- 03-10
- 90%
- 03-04
First fall freeze
- 10%
- 10-30
- 20%
- 11-02
- 50%
- 11-12
- 80%
- 11-25
- 90%
- 12-01
Growing season length (days, 28°F threshold)
- Short year
- 206
- Median
- 235
- Long year
- 272
Source NOAA station
ROANOKE RGNL AP, VA US
12.0 mi · 30 yrs of record (1991–2020) · 1175 ft elev.
Data from ROANOKE RGNL AP, VA US, 12 miles away with 30-year NOAA record (1991-2020).
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