Alabama, USA
Long term weather forecast
Long term weather forecast

September weather forecast and Climate
Decatur, AL

  • Average high temperature in September: 84.4°F

Warmest months (with highest average high temperature) are July and August (90.3°F).
Month with lowest average high temperature is January (50.1°F).

  • Average low temperature in September: 60.3°F

Month with highest average low temperature is July (68.8°F).
Coldest month (with lowest average low temperature) is January (31°F).

  • Average rainfall in September: 3.6"

Wettest month (with highest rainfall) is December (5.7").
Driest month (with lowest rainfall) is October (3.5").