Saint Louis Weather in December

What's the weather like in Saint Louis (Missouri) in December 2024?

The climate in Saint Louis during December can be summarized as cool and reasonably dry.

December is in the winter in Saint Louis and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cold 6°C (42°F), whilst at night -3°C (26°F) is normal.

Saint Louis weather averages (imperial / metric)
Daytime temperature 5.6°C 42.1°F
Nightly temperature -3.4°C 25.9°F
Average temperature 1.1°C 34°F
Daily sunshine 4.7 hrs
Avg rainfall 68 mm 2.7 ins
Rainy days 10 days
Sea temperature 11.7°C 53°F
Humidity 76%
Windspeed 18.4kph 11 mph

On average December is the 4th driest month of the year in Saint Louis with around 68mm 2.7 inches of rain making it a reasonably dry 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 4.7 hours of sunshine per day.

December temperatures in Saint Louis

Saint Louis average temperature in December

December rainfall

Saint Louis average rain in December

December hourly sunshine

Saint Louis average rain in December

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 Louis in December 2024.

Other monthly averages

Best places to visit in December

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Saint Louis weather stats

Saint Louis weather statistics
Hottest month: July 31.4°C 88.5°F
Driest month: January 46mm 1.8ins
Sunniest month: July 10.8hrs
Coldest month: January 3.1°C 37.6°F
Wettest month: May 103mm 4.1ins
Map showing location of Saint Louis (38.62727, -90.19789) Saint Louis map pin © Google

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