Assateague, MD Climate

Climate Insight: Assateague, MD

The NOAA 1991–2020 climate normals describe Assateague, Maryland as a location with an annual average temperature of 58°F, ranging from a mean daily high of 67°F to a mean daily low of 50°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00180335, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.

Assateague averages 44.9 inches of precipitation a year, with 3.4 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 229 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 31 and the first fall freeze near November 15. As for energy demand, 3,801 heating degree days and 1,302 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Assateague scores 83/100 (Excellent), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, July-driven heat peaks in summer, and January-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.