Alton weather in December (Illinois, United States of America)

Will it be warm or cold in Alton this December? Thinking about a visit? Explore this page for a full overview of the weather conditions this month.

Temperatures

Typically, December in Alton includes low temperatures and moderate snow/rainfall. Experience the winter season in December. Daytime temperatures generally settle around 7°C, while nighttime can see a dip to about -2°C.

Precipitation

Alton in December usually receives moderate snow/rainfall, averaging around 89 mm for the month. Past climate data indicates that roughly 10 days will see snow/rain.

Average sunshine

The month brings about 128 hours of sunlight, offering a comfortable mix of sun and shade.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Alton. September and October generally stand out with the best circumstances. While January, February and December tend to showcase less optimal conditions.

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

 

Alton, monthly averages in December

Min Temperature -2°C  

Max Temperature 7°C  

Chance of Rain 34%  

Precipitation 89 mm  

Rainy days 10 days  

Humidity 74% *  

Sunshine 128 hours *  

Percentage Sunshine 44% *  

* Data from: St. Louis, the United States of America (29 KM, 18 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 Alton.

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.