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.
Need inspiration to choose your next destination? Our innovative weather planner helps you discover the perfect getaway tailored to your ideal climate conditions.
O'Fallon, monthly averages in December
Min Temperature
-3°C
Max Temperature
7°C
Chance of Rain
35%
Precipitation
95 mm
Rainy days
11 days
Humidity
74% *
Sunshine
128 hours *
Percentage Sunshine
44% *
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.
perfect weather
pleasant
tolerable
unpleasant
poor
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.
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.
