Williamstown weather in December (New Jersey, United States of America)

Can you expect sunny skies in Williamstown in December? Check out this detailed guide to the month’s weather conditions.

Temperatures

In December, Williamstown usually has low temperatures and high snow/rainfall. December is known for being in the winter season. Expect the temperatures during the day to hover around 9°C. At night, they will likely drop to about -1°C.

Precipitation

Williamstown in December usually receives high snow/rainfall, averaging around 131 mm for the month. Snow/rain is expected on roughly 12 days.

Average sunshine

The area experiences a moderate amount of sunshine, with approximately 140 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Williamstown. May typically offers the most agreeable circumstances. On the other hand, January, February and December tend to be characterized by conditions that may not be as optimal.

For an in-depth look at the yearly conditions, visit our specialized Williamstown climate page with graphs.

 

Williamstown, monthly averages in December

Min Temperature -1°C  

Max Temperature 9°C  

Chance of Rain 40%  

Precipitation 131 mm  

Rainy days 12 days  

Humidity 67% *  

Sunshine 140 hours *  

Percentage Sunshine 48% *  

Data from: Philadelphia, the United States of America (32 KM, 20 Miles).

Where to go in the United States of America in December

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

Wear a base layer in cold weather; this is the #1 thing you can do to increase your overall body temperature.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

4/10

Walking

4/10

Camping

1/10

Outdoor sports

4/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Williamstown.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.