Northampton County Climate
Northampton County, Pennsylvania
Avg Annual Temp
50.9°F
Annual Precip
53.4"
Annual Snowfall
41.1"
Extreme Heat Days
13.6
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Northampton County Weather
A Classic Northeast Climate
Northampton County's 50.9°F average temperature sits right in line with the national median for the humid continental zone. It experiences the sharp seasonal shifts typical of the Lehigh Valley.
Significantly Wetter Than the State Average
With 53.4 inches of annual precipitation, Northampton is much wetter than the state average of 45.3 inches. It is also roughly one degree warmer than the statewide average temperature.
Damp and Snowy Compared to Neighbors
The county receives 41.1 inches of snow, which is significantly higher than its southern neighbors in the Philadelphia metro. It also records more annual rainfall than most counties in the region.
Snowy Winters and Temperate Summers
Winters are significant, featuring 41.1 inches of snow and a January average of 28.1°F. Summers are generally comfortable, with only 14 days of extreme heat exceeding 90°F.
Prepare for High Precipitation
The 53.4 inches of rain makes high-quality roofing and drainage essential for local homeowners. A reliable snowblower is recommended for the 41-inch average annual snowfall.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.