O'Fallon weather in January (Illinois, United States of America)
Is O'Fallon a good destination in January, weather-wise? Use this page to get an overview of the month’s weather conditions.
Temperatures
In January, O'Fallon usually has low temperatures and moderate snow/rainfall. During January, you’ll experience the winter season. Throughout the daytime, temperatures often hover around 5°C. However, as the sun sets and evening approaches, there's a noticeable cool-down. Temperatures gently drop to a more temperate -5°C. It's often the coldest month of the year, a perfect time to cozy up indoors. Make sure to bring along suitable winter clothing.
Precipitation
O'Fallon in January usually receives moderate snow/rainfall, averaging around 56 mm for the month. This month sees the least rain, offering perfect conditions for outdoor adventures. Enjoy clear skies and make the most of the dry weather. Records from the past 30 years suggest that around 7 days will experience snow/rain.Average sunshine
Expect a moderate amount of sunlight, with approximately 163 hours. This means a pleasant mix of sun and clouds.If you prefer dry days with pleasant temperatures, January may not be the ideal month to visit O'Fallon. October typically offers the most optimal weather. In contrast, January, February and December tend to have 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 January
Min Temperature
-5°C
Max Temperature
5°C
Chance of Rain
23%
Precipitation
56 mm
Rainy days
7 days
Humidity
72% *
Sunshine
163 hours *
Percentage Sunshine
53% *
Where to go in the United States of America in January
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.
