Alleghany County, North Carolina · Frost dates
Alleghany County frost dates.
First-frost, last-frost, and growing-season length for Alleghany County, North Carolina. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7b
32°F — light freeze
Last spring frost
- 10%
- 05-11
- 20%
- 05-05
- 50%
- 04-22
- 80%
- 04-10
- 90%
- 04-06
First fall frost
- 10%
- 10-08
- 20%
- 10-13
- 50%
- 10-22
- 80%
- 10-29
- 90%
- 11-03
28°F — killing freeze
Last spring freeze
- 10%
- 04-27
- 20%
- 04-19
- 50%
- 04-06
- 80%
- 03-30
- 90%
- 03-23
First fall freeze
- 10%
- 10-18
- 20%
- 10-22
- 50%
- 10-31
- 80%
- 11-09
- 90%
- 11-14
Growing season length (days, 28°F threshold)
- Short year
- 174
- Median
- 208
- Long year
- 236
Source NOAA station
SPARTA 3.5 SSW, NC US
2.4 mi · 30 yrs of record (1991–2020) · 3011 ft elev.
Data from SPARTA 3.5 SSW, NC US, 2.4 miles away with 30-year NOAA record (1991-2020).
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