Cumberland County Climate
Cumberland County, Pennsylvania
Avg Annual Temp
52.3°F
Annual Precip
45.4"
Annual Snowfall
30.7"
Extreme Heat Days
21.2
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Cumberland County Weather
Warm and temperate transitions
Cumberland County’s average temperature of 52.3°F is near the national median, reflecting a milder mid-Atlantic climate. This area experiences significantly more warmth than the northern Pennsylvania counties.
Among the state's warmest
Cumberland is notably warmer than the Pennsylvania average of 49.9°F. Its location in the Cumberland Valley provides a longer growing season and more heat than the Allegheny plateau.
A match for Dauphin County
Cumberland shares an identical 52.3°F annual average with neighboring Dauphin County. Both counties receive roughly 45 inches of precipitation, which is standard for the state.
Hot summers and manageable snow
The county endures 21 days of extreme heat above 90°F, with July averages reaching a warm 74.4°F. Winters are milder than northern counties, with 30.7 inches of snow and a 31.9°F winter average.
Focus on summer cooling
With three weeks of 90-degree days, efficient central air conditioning is a necessity here. Winter planning is still required, but snow totals are manageable compared to the lake-effect regions.
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.