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What is the weather like in St. Louis, MissouriSt. Louis, Missouri monthly and yearly climate averages.

St. Louis, Missouri Climate Averages

Monthly and yearly weather averages for St. Louis, MissouriWeather almanac for St. Louis, MO. St. Louis monthly weather averages.
Lat: 38.64N, Lon: 90.24W
Wx Zone: MOZ064Web Search
St. Louis Weather Warning NWS WEATHER ALERT FOR THE SAINT LOUIS, MO AREA - Issued: 320 AM CDT Sat Jun 19 2021 St. Louis Weather Warning  

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St. Louis Monthly Averages

12 Month Weather Scroll   °F Click to change St. Louis weather to Imperial units.Click to change St. Louis weather to Metric units. °C
January
February
March
April
May
June
July
August
September
October
November
December
Hi 37°F Lo 25°F Hi 41°F Lo 28°F Hi 54°F Lo 39°F Hi 64°F Lo 47°F Hi 74°F Lo 58°F Hi 84°F Lo 67°F Hi 86°F Lo 68°F Hi 84°F Lo 66°F Hi 79°F Lo 60°F Hi 66°F Lo 49°F Hi 53°F Lo 39°F Hi 42°F Lo 31°F
9 mph 9 mph 9 mph 9 mph 8 mph 7 mph 6 mph 6 mph 6 mph 8 mph 9 mph 9 mph
4 in 4.1 in 6 in 8.2 in 8.4 in 8.7 in 7.4 in 6.9 in 5.3 in 6 in 5 in 4.2 in
76% 77% 76% 76% 79% 77% 79% 78% 74% 70% 72% 75%
52% 51% 47% 42% 37% 26% 26% 26% 28% 33% 37% 48%
30.6 in 30.6 in 30.6 in 30.4 in 30.4 in 30.4 in 30.4 in 30.4 in 30.5 in 30.5 in 30.6 in 30.6 in
14 11 11 11 9 10 9 13 13 16 16 16
9 10 17 17 20 18 19 16 14 13 11 10
9 8 3 1 0 0 0 0 0 0 2 5
2 1 2 2 3 2 2 4 2 2 1 2
2 2 3 4 5 6 6 6 5 3 2 2
227 215 257 264 303 330 344 338 316 299 272 249
January
February
March
April
May
June
July
August
September
October
November
December
Hi 3°C Lo -4°C Hi 5°C Lo -3°C Hi 12°C Lo 4°C Hi 18°C Lo 8°C Hi 23°C Lo 14°C Hi 29°C Lo 19°C Hi 30°C Lo 20°C Hi 29°C Lo 19°C Hi 26°C Lo 16°C Hi 19°C Lo 10°C Hi 12°C Lo 4°C Hi 6°C Lo -1°C
15 km/h 15 km/h 15 km/h 15 km/h 12 km/h 11 km/h 9 km/h 9 km/h 10 km/h 13 km/h 14 km/h 14 km/h
101 mm 103 mm 153 mm 209 mm 213 mm 221 mm 188 mm 174 mm 136 mm 153 mm 128 mm 107 mm
76% 77% 76% 76% 79% 77% 79% 78% 74% 70% 72% 75%
52% 51% 47% 42% 37% 26% 26% 26% 28% 33% 37% 48%
1021 mb 1020 mb 1018 mb 1014 mb 1015 mb 1013 mb 1015 mb 1015 mb 1017 mb 1017 mb 1020 mb 1020 mb
14 11 11 11 9 10 9 13 13 16 16 16
9 10 17 17 20 18 19 16 14 13 11 10
9 8 3 1 0 0 0 0 0 0 2 5
2 1 2 2 3 2 2 4 2 2 1 2
2 2 3 4 5 6 6 6 5 3 2 2
227 215 257 264 303 330 344 338 316 299 272 249
Month
Avg. Temperatures
Avg. Wind Speed
Avg. Precipitation
Average Humidity
Avg. Cloud Cover
Barometric Pressure
Average Dry Days
Avg. Precip. Days
Average Snow Days
Average Fog Days
Average UV Index
Avg. Hours of Sun
Averages are based on historical weather data from the past 10 years.

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