Gloucester County Climate
Gloucester County, New Jersey
Avg Annual Temp
54.9°F
Annual Precip
—
Annual Snowfall
—
Extreme Heat Days
19.9
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Precipitation data coming soon
Seasonal Overview
National Comparison
Data pending
Climate Profile
About Gloucester County Weather
Temperate and Warmly Situated
Gloucester County's 54.9°F average temperature sits about two degrees above the national median. This indicates a climate with mild winters and warm, humid summers.
A Warm Southern NJ Pocket
The county is significantly warmer than the New Jersey state average of 53.6°F. It ranks alongside Atlantic County as one of the state's warmer regions.
Matching the Atlantic Profile
Gloucester matches Atlantic County's 54.9°F average but experiences slightly fewer extreme heat days. It remains warmer than Burlington and Cumberland on an annual basis.
Warm Summers and Moderate Januaries
July averages a hot 77.0°F with 20 days of extreme heat exceeding 90°F. January stays relatively moderate with an average temperature of 33.2°F.
Focus on Summer Air Quality
While precipitation and snow data are limited, the 77.0°F July average demands reliable air conditioning. Residents should plan for 20 days of extreme heat annually by checking cooling systems early.
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.