Jackson Weather in December

What's the weather like in Jackson (New Jersey) in December 2025?

The climate in Jackson during December can be summarized as cool and a little damp.

December is in the winter in Jackson and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cold 7°C (44°F), whilst at night -3°C (26°F) is normal.

Jackson weather averages (imperial / metric)
Daytime temperature 6.8°C 44.2°F
Nightly temperature -3.4°C 26°F
Average temperature 1.7°C 35.1°F
Daily sunshine 5 hrs
Avg rainfall 96 mm 3.8 ins
Rainy days 10 days
Sea temperature 8.4°C 47.2°F
Humidity 69%
Windspeed 17.6kph 11 mph

On average December is the 4th wettest month of the year in Jackson with around 96mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 5 hours of sunshine per day.

December temperatures in Jackson

Jackson average temperature in December

December rainfall

Jackson average rain in December

December hourly sunshine

Jackson average rain in December

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Jackson in December 2025.

Other monthly averages

Best places to visit in December

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Jackson weather stats

Jackson weather statistics
Hottest month: July 29.3°C 84.7°F
Driest month: February 77mm 3ins
Sunniest month: August 9.1hrs
Coldest month: January 3.8°C 38.8°F
Wettest month: August 122mm 4.8ins
Map showing location of Jackson (39.7765, -74.86238) Jackson map pin © Google

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