John H Kerr Dam, VA Climate

Climate Insight: John H Kerr Dam, VA

The NOAA 1991–2020 climate normals describe John H Kerr Dam, Virginia as a location with an annual average temperature of 60°F, ranging from a mean daily high of 72°F to a mean daily low of 49°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00444414, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. John H Kerr Dam sees about 43.5 inches of precipitation a year, predominantly as rainfall. The frost-free season averages 210 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 5 and the first fall freeze near November 1. On the energy side, 3,504 heating degree days and 1,825 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, John H Kerr Dam scores 88/100 (Excellent), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Shoulder seasons bring the mildest highs and lows in the monthly tables above, summer brings July-driven heat, and winter brings January-driven cold - use that rhythm for planning. These figures are thirty-year averages rather than forecasts, so a specific year may still run warmer, cooler, wetter, or drier than what's shown.