Boulder weather in December (Colorado, United States of America)

Looking to travel to Boulder in December? Check out this comprehensive weather guide.

In December, Boulder typically experiences low temperatures and moderate snow/rainfall. December is a winter month. Daytime temperatures hover around 7°C, while nights can cool down to about -7°C. Typically, it's the chilliest month of the year. Ensure you're prepared by packing appropriate winter gear.

Boulder in December usually receives moderate snow/rainfall, averaging around 32 mm for the month. Delving into the climate records from the past 30 years, one can predict that nearly 7 days of the month will see snow/rainfall.

The city usually sees around 195 hours of sunlight, indicating many sunny days.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Boulder. May, June, August and September typically offer the best circumstances. While December tends to showcase less optimal conditions.

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

 

Boulder, monthly averages in December

Min Temperature -7°C  

Max Temperature 7°C  

Chance of Rain 23%  

Precipitation 32 mm  

Rainy days 7 days  

Humidity 56% *  

Sunshine 195 hours *  

Percentage Sunshine 67% *  

* Data from: Denver, the United States of America (45 KM, 28 Miles).

Where to go in the United States of America in December

Find out more about the weather in the United States of America in December and which places have the best weather 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 Boulder in December?

Wear a base layer in cold weather; this is the #1 thing you can do to increase your overall body temperature. Also, consider bringing a rain jacket as there might be some rain.

What To Do

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

Swimming

5/10

Cycling

4/10

Walking

4/10

Camping

2/10

Outdoor sports

4/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Boulder.

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 climate conditions. Find out where to go with our weather planner.