Saint Charles Weather in March

The climate in Saint Charles during March can be summarized as cool and a little damp.

March is in the spring in Saint Charles and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 13°C (55°F), whilst at night 2°C (35°F) is normal.

On average March is the 3rd wettest month of the year in Saint Charles with around 93mm 3.6 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.4 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 Saint Charles in March 2024.