Chestertown, MD Climate

Climate Insight: Chestertown, MD

The NOAA 1991–2020 climate normals describe Chestertown, Maryland as a location with an annual average temperature of 56°F, ranging from a mean daily high of 65°F to a mean daily low of 47°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00181750, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.

Anyone planning to live, garden, or travel in Chestertown should weigh precipitation alongside temperature: the annual average runs 46.0 inches, with 16.7 inches typically falling as snow. The frost-free season averages 216 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 3 and the first fall freeze near November 5. And on the energy front, 4,546 heating degree days and 1,284 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Chestertown scores 78/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. For planning purposes, look to the monthly tables above: shoulder seasons bring the mildest highs and lows, summer brings July-driven heat, and deep winter brings January-driven cold. Treat every figure here as a thirty-year average rather than a forecast - individual years routinely run warmer, cooler, wetter, or drier than the normal.