Warren County Climate
Warren County, New Jersey
Avg Annual Temp
51.1°F
Annual Precip
49.6"
Annual Snowfall
23.3"
Extreme Heat Days
17.3
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Warren County Weather
Cool Temps and High Precipitation
Warren County averages 51.1°F annually, placing it slightly below the national median for temperature. It stands out for its high moisture levels, receiving nearly 50 inches of precipitation every year.
The State's Wettest Corner
With 49.6 inches of annual precipitation, Warren is wetter than the New Jersey average of 48.1 inches. Its 51.1°F average temperature makes it one of the cooler counties in the state.
Damp and Cool Compared to Union
Warren is much cooler than neighboring Union County, averaging 51.1°F compared to Union's 55.0°F. It also manages more snowfall, recording 23.3 inches compared to the lower levels found in southern NJ.
Chilly Winters and Mild Summers
Extreme heat is limited to just 17 days a year, keeping summer averages at a comfortable 71.3°F. Winter brings a sharp chill, with January temperatures averaging 28.5°F.
Prepare for Rain and Ice
The primary challenge here is the 49.6 inches of annual precipitation, requiring excellent drainage and waterproof gear. Homeowners should also prepare for 23 inches of snow and the potential for icy winter mornings.
Frequently Asked Questions
What is the average temperature in Warren County?
How much rain does Warren County get?
Does it snow in Warren County?
How hot does Warren County get in summer?
How cold are winters in Warren County?
Track your own weather in Warren County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
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.