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Climate & Weather Averages in St. Louis, Missouri, USA

Currently: 31 °F. Clear. (Weather station: Lambert-St. Louis International Airport, USA). See more current weather

Annual Weather Averages Near St. Louis

Averages are for Lambert-St. Louis International Airport, which is 13 miles from St. Louis.

Based on weather reports collected during 1992–2021.

All Year Climate & Weather Averages in St. Louis

High Temp: 90 °F

Low Temp: 25 °F

Mean Temp: 58 °F

Precipitation: 3.52"

Humidity: 65%

Dew Point: 45 °F

Wind: 14 mph

Pressure: 30.04 "Hg

Visibility: 9 mi

January Climate & Weather Averages in St. Louis

High Temp: 40 °F

Low Temp: 25 °F

Mean Temp: 33 °F

Precipitation: 2.71"

Humidity: 69%

Dew Point: 23 °F

Wind: 16 mph

Pressure: 30.16 "Hg

Visibility: 8 mi

February Climate & Weather Averages in St. Louis

High Temp: 45 °F

Low Temp: 28 °F

Mean Temp: 37 °F

Precipitation: 2.32"

Humidity: 66%

Dew Point: 26 °F

Wind: 16 mph

Pressure: 30.13 "Hg

Visibility: 9 mi

March Climate & Weather Averages in St. Louis

High Temp: 56 °F

Low Temp: 37 °F

Mean Temp: 47 °F

Precipitation: 3.59"

Humidity: 61%

Dew Point: 34 °F

Wind: 17 mph

Pressure: 30.08 "Hg

Visibility: 9 mi

April Climate & Weather Averages in St. Louis

High Temp: 68 °F

Low Temp: 47 °F

Mean Temp: 57 °F

Precipitation: 4.75"

Humidity: 60%

Dew Point: 43 °F

Wind: 17 mph

Pressure: 29.97 "Hg

Visibility: 9 mi

May Climate & Weather Averages in St. Louis

High Temp: 77 °F

Low Temp: 58 °F

Mean Temp: 67 °F

Precipitation: 4.81"

Humidity: 63%

Dew Point: 54 °F

Wind: 14 mph

Pressure: 29.96 "Hg

Visibility: 9 mi

June Climate & Weather Averages in St. Louis

High Temp: 86 °F

Low Temp: 68 °F

Mean Temp: 77 °F

Precipitation: 4.60"

Humidity: 64%

Dew Point: 63 °F

Wind: 13 mph

Pressure: 29.93 "Hg

Visibility: 9 mi

July Climate & Weather Averages in St. Louis

High Temp: 90 °F

Low Temp: 72 °F

Mean Temp: 80 °F

Precipitation: 3.98"

Humidity: 64%

Dew Point: 67 °F

Wind: 11 mph

Pressure: 29.96 "Hg

Visibility: 9 mi

August Climate & Weather Averages in St. Louis

High Temp: 88 °F

Low Temp: 70 °F

Mean Temp: 79 °F

Precipitation: 3.52"

Humidity: 65%

Dew Point: 66 °F

Wind: 11 mph

Pressure: 29.99 "Hg

Visibility: 9 mi

September Climate & Weather Averages in St. Louis

High Temp: 81 °F

Low Temp: 61 °F

Mean Temp: 71 °F

Precipitation: 3.02"

Humidity: 64%

Dew Point: 58 °F

Wind: 11 mph

Pressure: 30.02 "Hg

Visibility: 9 mi

October Climate & Weather Averages in St. Louis

High Temp: 69 °F

Low Temp: 49 °F

Mean Temp: 59 °F

Precipitation: 3.07"

Humidity: 64%

Dew Point: 46 °F

Wind: 14 mph

Pressure: 30.05 "Hg

Visibility: 9 mi

November Climate & Weather Averages in St. Louis

High Temp: 56 °F

Low Temp: 38 °F

Mean Temp: 47 °F

Precipitation: 3.32"

Humidity: 65%

Dew Point: 35 °F

Wind: 15 mph

Pressure: 30.12 "Hg

Visibility: 9 mi

December Climate & Weather Averages in St. Louis

High Temp: 45 °F

Low Temp: 29 °F

Mean Temp: 37 °F

Precipitation: 2.57"

Humidity: 70%

Dew Point: 27 °F

Wind: 15 mph

Pressure: 30.13 "Hg

Visibility: 9 mi

Quick Climate Info

Hottest MonthJuly (80 °F avg)
Coldest MonthJanuary (33 °F avg)
Wettest MonthMay (4.81" avg)
Windiest MonthMarch (17 mph avg)
Annual precip.42.27" (per year)

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