The bar chart below shows the average monthly peak daytime temperatures at Saint Louis
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 3.1 | 5.8 | 12.3 | 19.2 | 24.3 | 29.3 | 31.4 | 30.3 | 26.3 | 20.3 | 12.5 | 5.4 |
°F | 37.5 | 42.5 | 54.2 | 66.6 | 75.8 | 84.7 | 88.6 | 86.6 | 79.3 | 68.5 | 54.4 | 41.7 |
Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.
The graph below shows the average rainfall and number of rainy days per month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
mm | 46 | 55 | 84 | 95 | 103 | 95 | 95 | 75 | 78 | 67 | 80 | 68 |
inches | 1.8 | 2.2 | 3.3 | 3.7 | 4 | 3.7 | 3.7 | 3 | 3.1 | 2.6 | 3.2 | 2.7 |
Rainy days | 9 | 9 | 11 | 11 | 10 | 9 | 8 | 8 | 8 | 8 | 10 | 10 |
Average annual rainfall in Saint Louis: 889.733mm (350.3 inches)
The bar chart below shows the average daily sunshine hours in Saint Louis
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 5.7 | 6.1 | 6.9 | 8 | 9.3 | 10.5 | 10.8 | 9.5 | 8.5 | 7.4 | 5.2 | 4.7 |
The graph below shows the daily range of temperatures for each month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Min °C | -6.5 | -4.1 | 1.6 | 7.7 | 12.8 | 18.1 | 20.5 | 19 | 15.1 | 8.5 | 2.7 | -3.4 |
Max °C | 3.3 | 6.1 | 12.6 | 19.5 | 24.6 | 29.6 | 31.7 | 30.6 | 26.6 | 20.6 | 12.7 | 5.6 |
Min °F | 20.3 | 24.7 | 34.9 | 45.9 | 55 | 64.5 | 68.9 | 66.2 | 59.1 | 47.2 | 36.9 | 25.9 |
Max °F | 29.1 | 33.8 | 44.8 | 56.5 | 65.7 | 74.8 | 79 | 76.6 | 69.4 | 58.1 | 45.9 | 34 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 10.3 | 9.8 | 10.4 | 11.8 | 14 | 16.6 | 19.7 | 22.6 | 21.2 | 17.1 | 13.9 | 11.7 |
°F | 50.5 | 49.7 | 50.7 | 53.2 | 57.1 | 61.9 | 67.5 | 72.7 | 70.2 | 62.8 | 56.9 | 53 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 19 | 19 | 20 | 19 | 16 | 16 | 14 | 13 | 14 | 16 | 18 | 18 |
mph | 12 | 12 | 13 | 12 | 10 | 10 | 9 | 8 | 9 | 10 | 11 | 11 |
A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.
The graph below shows the average relative humidity.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|
73% | 72% | 68% | 64% | 67% | 67% | 68% | 70% | 72% | 69% | 72% | 76% |
Hottest month: | July | 31.4°C 88.5°F |
---|---|---|
Driest month: | January | 46mm 1.8ins |
Sunniest month: | July | 10.8hrs |
Coldest month: | January | 3.1°C 37.6°F |
Wettest month: | May | 103mm 4.1ins |
Warmest sea: | August | 22.6°C 72.7°F |