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

Currently: 62 °F. Overcast. (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.

Jan
40
25
2.71
Feb
45
28
2.32
Mar
56
37
3.59
Apr
68
47
4.75
May
77
58
4.81
Jun
86
68
4.6
Jul
90
72
3.98
Aug
88
70
3.52
Sep
81
61
3.02
Oct
69
49
3.07
Nov
56
38
3.32
Dec
45
29
2.57

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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