Cumberland County Climate
Cumberland County, New Jersey
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
54.6°F
Annual Precip
45.5"
Annual Snowfall
11.8"
Extreme Heat Days
23
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
7b
Minimum winter temperature range for plant survival
3,624
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Cumberland County
Climate Verdict
Cumberland County has a mild, with an average annual temperature of 54.6°F, moderately wet with 45.5 inches of annual precipitation, occasional hot days — 23.4 per year above 90°F, light snow averaging 11.8 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 33.0°F. summers are warm — July averages 76.5°F. The 43°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Cumberland County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Cumberland County closely matches the New Jersey statewide average temperature of 53.6°F, it is somewhat drier than average for New Jersey.
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 sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.