O'Fallon Weather in February

The climate in O'Fallon during February can be summarized as cool and reasonably dry.

February is in the winter in O'Fallon and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cold 6°C (42°F), whilst at night -5°C (23°F) is normal.

On average February is the 2nd driest month of the year in O'Fallon with around 49mm 1.9 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.1 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in O'Fallon in February 2024.