Cumberland County Climate
Cumberland County, New Jersey
Avg Annual Temp
54.6°F
Annual Precip
45.5"
Annual Snowfall
11.8"
Extreme Heat Days
23.4
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Cumberland County Weather
Typical Mid-Atlantic Temperature Profile
Cumberland County averages 54.6°F annually, placing it slightly above the national median temperature. It receives a moderate 45.5 inches of rain, making it slightly drier than the New Jersey average.
A Sunny Southern Contender
At 54.6°F, Cumberland is exactly one degree warmer than the New Jersey state average of 53.6°F. It offers a consistently warmer climate than the northern half of the state.
Drier Than the State Average
Cumberland's 45.5 inches of precipitation is lower than Atlantic County's 46.9 inches. It also experiences a cooler annual average than nearby Cape May by roughly 1.4 degrees.
Light Snow and Hot July
The county enjoys relatively light winters with only 11.8 inches of annual snowfall. However, summers are intense with 23 extreme heat days and a July average of 76.5°F.
Efficient Cooling Over Snow Gear
With only 11.8 inches of snow, heavy winter equipment is rarely needed. Instead, residents should invest in high-efficiency cooling to manage the 23 days of temperatures over 90°F.
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.