Best year time to visit St. Louis

General weather information about St. Louis

Average annual temperature is 14.6 °C

Absolute maximum temperature: 38.0 °C

Absolute minimum temperature: -11.0 °C

Number of sunny days: 205 days

Number of rainy days: 159 days

Number of snow days: 1 day

* Weather data for St. Louis United States is based on climate observations for 2026 year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	20.7	20.8	22.8	28.2	32.0	35.1	37.8	38.0	33.3	29.9	27.1	18.1
Average daytime temperature (°C)	8.4	11.3	13.0	20.8	26.0	30.3	32.4	30.1	27.5	20.5	14.4	10.2
Average temperature (°C)	3.5	5.2	6.8	13.7	19.5	23.9	26.4	24.9	21.7	15.2	8.5	5.7
Average night temperature (°C)	0.0	0.6	2.2	7.5	13.9	17.9	21.3	20.7	16.8	10.9	3.8	2.4
Absolute minimum temperature (°C)	-11.0	-10.0	-6.5	0.2	5.4	12.4	17.1	14.2	11.6	-1.9	-5.0	-5.6

The best time to visit St. Louis during the most sunny months:

The largest precipitation sum in St. Louis is at

March — 202(mm)

May — 144(mm)

July — 152(mm)

August — 178(mm)

When is the best time to visit St. Louis?

The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit St. Louis.

What is the weather like in St. Louis?

See average temperature, rainfall and daylight hours for St. Louis by month in the table above.

How many sunny days does St. Louis have?

The monthly weather statistics above show sunshine and rainfall patterns for St. Louis throughout the year.