ClimateForecastDecemberJanuary >>

O'Fallon weather in December (Missouri, United States of America)

Curious about the climate in O'Fallon this 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 O'Fallon includes low temperatures and moderate snow/rainfall. December marks the winter season. Daytime temperatures are expected to be around 7°C, cooling off to about -3°C at night.

Precipitation

O'Fallon in December usually receives moderate snow/rainfall, averaging around 95 mm for the month. This month experiences about 11 days of snow/rain according to historical data.

Average sunshine

With about 128 hours of sunshine, the area enjoys a nice balance of sun and clouds, creating a pleasant environment.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit O'Fallon. October typically offers 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 O'Fallon climate page with graphs.

 

O'Fallon, monthly averages in December

Min TemperatureMin Temperature -3°C  
Max TemperatureMax Temperature 7°C  
Chance of RainChance of Rain 35%  
PrecipitationPrecipitation 95 mm  
Rainy daysRainy days 11 days  
HumidityHumidity 74% *  
SunshineSunshine 128 hours *  
Percentage SunshinePercentage Sunshine 44% *  
Data from: St. Louis, the United States of America (48 KM, 29 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.

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 O'Fallon.

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.