Stillwater Weather in September

What's the weather like in Stillwater (Minnesota) in September 2024?

The climate in Stillwater during September can be summarized as mild and a little damp.

September is in the fall / autumn in Stillwater and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 22°C (71°F), whilst at night 9°C (48°F) is normal.

Stillwater weather averages (imperial / metric)
Daytime temperature 21.5°C 70.6°F
Nightly temperature 8.8°C 47.8°F
Average temperature 15.1°C 59.2°F
Daily sunshine 8 hrs
Avg rainfall 80 mm 3.2 ins
Rainy days 10 days
Sea temperature 16°C 60.7°F
Humidity 73%
Windspeed 16.9kph 11 mph

On average September is the 5th wettest month of the year in Stillwater with around 80mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 8 hours of sunshine per day.

September temperatures in Stillwater

Stillwater average temperature in September

September rainfall

Stillwater average rain in September

September hourly sunshine

Stillwater average rain in September

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 Stillwater in September 2024.