Black River Falls Weather in September

The climate in Black River Falls during September can be summarized as mild and a little damp.

September is in the fall / autumn in Black River Falls and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 22°C (71°F), whilst at night 8°C (47°F) is normal.

On average September is the 4th wettest month of the year in Black River Falls with around 96mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.5 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Black River Falls in September 2024.