Glenn Dale Bell Stn, MD Climate

Climate Insight: Glenn Dale Bell Stn, MD

Based on station USC00183675 feeding NOAA's 1991–2020 climate normals, Glenn Dale Bell Stn, Maryland averages 55°F a year, ranging from a mean daily high of 66°F to a mean daily low of 44°F. July is typically the warmest month of the year, while January is the coldest. Because these figures are thirty-year averages rather than any single year's readings, they describe the typical month, not a forecast for it.

Glenn Dale Bell Stn averages an uncharted amount of precipitation a year, predominantly as rainfall, and that matters as much to daily life here as temperature does. The frost-free season averages 183 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 22 and the first fall freeze near October 22. As for energy demand, 4,846 heating degree days and 1,202 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Glenn Dale Bell Stn scores 53/100 (Moderate), 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.