Waynesburg, PA Climate

Climate Insight: Waynesburg, PA

An annual average temperature of 51°F, ranging from a mean daily high of 63°F to a mean daily low of 39°F is what the NOAA 1991–2020 climate normals report for Waynesburg, Pennsylvania. July is typically the warmest month of the year, while January is the coldest. That baseline comes from station USC00369367 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.

Waynesburg averages 43.1 inches of precipitation a year, with 30.1 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 165 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 3 and the first fall freeze near October 15. As for energy demand, 5,749 heating degree days and 663 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Waynesburg scores 59/100 (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.