Catoctin Mtn Park, MD Climate

Climate Insight: Catoctin Mtn Park, MD

Based on station USC00181530 feeding NOAA's 1991–2020 climate normals, Catoctin Mtn Park, Maryland averages 53°F a year, ranging from a mean daily high of 63°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.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Catoctin Mtn Park sees about 48.6 inches of precipitation a year, predominantly as rainfall. The frost-free season averages 199 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 14 and the first fall freeze near October 30. On the energy side, 5,088 heating degree days and 898 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Catoctin Mtn Park scores 68/100 (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.