Weather in Saint Louis in september
Climate normals based on 10 years of historical data for Saint Louis, Amerikas Förenta Stater.
Average high
28°C
Average low
18°C
Rainfall
127 mm
8 rainy days
Sunshine
5.0h/day
Luftfuktighet
67%
How Hot Is Saint Louis in september?
Summer's hold loosens in Saint Louis: 28°C peaks, 18°C lows.
Sunshine Hours in september
September sees about 5.0h of sunshine in Saint Louis — neither very bright nor very grey.
Does It Rain In Saint Louis In september?
Concentrated wet stretches: Saint Louis averages 127mm across 8 days.
Is Saint Louis Humid In september?
Expect a humid September in Saint Louis: 67% on average, with little overnight relief.
Wind In Saint Louis In september
Wind stays light: 15 kph on a typical day in Saint Louis.
Cloud Cover In Saint Louis In september
Grey, cloudy days are the norm: 51% average cover in Saint Louis.
Cities With Similar Weather In september
Weather in Saint Louis, month by month
| Month | High / Low | Regn | |
|---|---|---|---|
| Vädret i januari | 5°C / -3°C | 86mm | Details → |
| Vädret i februari | 7°C / -2°C | 74mm | Details → |
| Vädret i mars | 13°C / 4°C | 158mm | Details → |
| Vädret i april | 18°C / 8°C | 155mm | Details → |
| Vädret i maj | 24°C / 15°C | 165mm | Details → |
| Vädret i juni | 30°C / 20°C | 136mm | Details → |
| Vädret i juli | 31°C / 21°C | 178mm | Details → |
| Vädret i augusti | 30°C / 20°C | 159mm | Details → |
| Vädret i september | 28°C / 18°C | 127mm | |
| Vädret i oktober | 21°C / 11°C | 101mm | Details → |
| Vädret i november | 13°C / 4°C | 97mm | Details → |
| Vädret i december | 8°C / 0°C | 93mm | Details → |