Saint Louis Weather in May

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

The climate in Saint Louis during May can be summarized as warm and damp.

May is in the spring in Saint Louis and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a comfortable 25°C (76°F), whilst at night 13°C (55°F) is normal.

Saint Louis weather averages (imperial / metric)
Daytime temperature 24.6°C 76.3°F
Nightly temperature 12.8°C 55°F
Average temperature 18.7°C 65.7°F
Daily sunshine 9.3 hrs
Avg rainfall 103 mm 4 ins
Rainy days 10 days
Sea temperature 14°C 57.1°F
Humidity 67%
Windspeed 16.2kph 10 mph

On average May is the wettest month of the year in Saint Louis with around 103mm 4 inches of rain making it a 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 9.3 hours of sunshine per day.

May temperatures in Saint Louis

Saint Louis average temperature in May

May rainfall

Saint Louis average rain in May

May hourly sunshine

Saint Louis average rain in May

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 May 2024.