Climate for St. Louis, Missouri
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Average Temperatures for St. Louis
| Month | Low | High |
|---|---|---|
| Jan | 21.2°F | 37.9°F |
| Feb | 26.5°F | 44.3°F |
| Mar | 36.2°F | 55.4°F |
| Apr | 46.5°F | 66.7°F |
| May | 56.6°F | 76.5°F |
| Jun | 65.9°F | 85.3°F |
| Jul | 70.6°F | 89.8°F |
| Aug | 68.6°F | 87.9°F |
| Sept | 60.3°F | 80.1°F |
| Oct | 48.2°F | 68.3°F |
| Nov | 36.7°F | 53.8°F |
| Dec | 25.8°F | 42.0°F |
St. Louis's coldest month is January when the average temperature overnight is 21.2°F. In July, the warmest month, the average day time temperature rises to 89.8°F.
Average Rainfall for St. Louis
| Month | Precipitation |
|---|---|
| Jan | 2.14in. |
| Feb | 2.28in. |
| Mar | 3.60in. |
| Apr | 3.69in. |
| May | 4.11in. |
| Jun | 3.76in. |
| Jul | 3.90in. |
| Aug | 2.98in. |
| Sept | 2.96in. |
| Oct | 2.76in. |
| Nov | 3.71in. |
| Dec | 2.86in. |
The driest month in St. Louis is January with 2.14 inches of precipitation, and with 4.11 inches May is the wettest month.
Monthly Sunshine Hours
| Month | Sunshine Hours |
|---|---|
| Jan | 50% |
| Feb | 52% |
| Mar | 54% |
| Apr | 56% |
| May | 59% |
| Jun | 66% |
| Jul | 68% |
| Aug | 65% |
| Sept | 63% |
| Oct | 60% |
| Nov | 46% |
| Dec | 43% |
Sunshine hours refers to the amount sunshine there is during the hours of daylight. A higher percentage means there is more sunshine through the day and a lower percentage will indicate that it is probably cloudier. Sunshine hours are important when you are planning your vacation.
Climate Graphs
St. Louis, Missouri has the following climate graphs available:
