Best year time to visit St. Louis

General weather information about St. Louis

Average annual temperature is 14.6 °C

Absolute maximum temperature: 38 °C

Absolute minimum temperature: -11 °C

Number of sunny days: 205

Number of rainy days: 159

Number of snow days: 1

Average annual precipitation: 1175 mm

Look at detailed online map of St. Louis

* Weather data for St. Louis United States is based on climate observations for 2023 year

St. Louis air temperature forecast for each month

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 35.1 37.8 38 33.3 29.9 27.1 18.1
Average daytime temperature (°C) 8.4 11.3 13 20.8 26 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 0.6 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 -10 -6.5 0.2 5.4 12.4 17.1 14.2 11.6 -1.9 -5 -5.6

St. Louis monthly weather indicators

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight maximum duration (h) 10.2 11.3 12.6 13.8 14.7 14.9 14.8 14.2 13 11.8 10.6 9.7
Daylight mean duration (h) 9.8 10.8 12 13.2 14.3 14.8 14.6 13.6 12.5 11.2 10.1 9.5
Daylight minimum duration (h) 9.5 10.3 11.3 12.6 13.8 14.7 14.2 13.1 11.9 10.6 9.7 9.5
Sunshine mean duration (h) 6 8.1 7.3 10.2 10.7 12.6 11.9 9.9 10.5 8.1 7.9 6.5
Precipitation (mm) 71 57 203 65 145 95 153 179 29 65 25 89
Sunny days 17 17 14 20 18 19 9 14 19 17 24 17
Rainy days 13 11 17 10 13 11 22 17 11 14 6 14
Snow days 1

St. Louis - weather forecast by months

January February March April May June July August September October November December

Best time to visit St. Louis:

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

  • June — 12.6(h)
  • July — 11.9(h)

The largest precipitation sum in St. Louis is at

  • March — 203(mm)
  • May — 145(mm)
  • July — 153(mm)
  • August — 179(mm)

Weather forecast in the closest to St. Louis admin centers