Selinsgrove, PA Climate

Climate Insight: Selinsgrove, PA

In Selinsgrove, Pennsylvania, the NOAA 1991–2020 climate normals put the annual average temperature at 51°F, ranging from a mean daily high of 61°F to a mean daily low of 40°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00367931, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Selinsgrove receives roughly 43.1 inches of precipitation each year, with 29.0 inches typically falling as snow. The frost-free season averages 180 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 25 and the first fall freeze near October 22. For energy use, 5,929 heating degree days and 770 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Selinsgrove scores 59/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, July-driven heat at the peak of summer, and January-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.