Groton weather in December (Connecticut, United States of America)

What's the typical weather in Groton for December? Thinking about a visit? Explore this page for a full overview of the weather conditions this month.

Temperatures

The typical weather for December in Groton includes low temperatures and high snow/rainfall. Winter occurs in December. Daytime temperatures are expected to be around 7°C, cooling off to about -1°C at night.

Precipitation

Groton in December usually receives high snow/rainfall, averaging around 128 mm for the month. This is the wettest month of the year, so having an umbrella ready is a smart choice. Historically, the month has about 12 days of snow/rain.

Average sunshine

With about 139 hours of sunshine, the area enjoys a nice balance of sun and clouds, creating a pleasant environment.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Groton. July and August typically offer the most optimal weather. In contrast, January, February, March and December tend to have less optimal conditions.

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

 

Groton, monthly averages in December

Min Temperature -1°C  

Max Temperature 7°C  

Chance of Rain 40%  

Precipitation 128 mm  

Rainy days 12 days  

Humidity 68% *  

Sunshine 139 hours *  

Percentage Sunshine 49% *  

Data from: Hartford, the United States of America (68 KM, 42 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

Map not visible? Whoops sorry! Please refresh the page.

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 Groton.

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.