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Topography & Climate

Franklin County is the seventh largest county in Virginia by area, consisting of 692.1 square miles of land and 9.5 square miles of water. Altitude in the county varies from 900 feet above sea level to more than 3,200 feet. The highest point is Cahas Knob, near the Blue Ridge Parkway. Altitude in the Town of Rocky Mount ranges from 1,200 feet to 1,420.

TEMPERATURE	Average January High 47.9 degrees	Average January Low 25.9 degrees	Average July High 86.6 degrees	Average July Low 62.8 degrees	Mean Annual Temperature 56.0 degrees
AVERAGE ANNUAL RAINFALL	44 inches
AVERAGE ANNUAL SNOWFALL	14 inches
AVERAGE GROWING SEASON	180 days
AVERAGE RELATIVE HUMIDITY	66%
FROST-FREE NIGHTS	Average April 20-Oct. 16
PREVAILING WINDS	Westerly
SLOPE	Three-fourths of the county is level to rolling.
AIR QUALITY	Franklin County is classified as an attainment area for all pollutants by both state and federal agencies.
Source: NOAA