Dickinson Weather in September

What's the weather like in Dickinson (North Dakota) in September 2025?

The climate in Dickinson during September can be summarized as mild and reasonably dry.

September is in the fall / autumn in Dickinson and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 21°C (70°F), whilst at night 5°C (42°F) is normal.

Dickinson weather averages (imperial / metric)
Daytime temperature 21.2°C 70.2°F
Nightly temperature 5.4°C 41.7°F
Average temperature 13.3°C 55.9°F
Daily sunshine 9 hrs
Avg rainfall 38 mm 1.5 ins
Rainy days 7 days
Sea temperature 14.7°C 58.4°F
Humidity 60%
Windspeed 17.3kph 11 mph

On average September is the 6th wettest month of the year in Dickinson with around 38mm 1.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.

On the flip side this corresponds to an average of 9 hours of sunshine per day.

September temperatures in Dickinson

Dickinson average temperature in September

September rainfall

Dickinson average rain in September

September hourly sunshine

Dickinson 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 Dickinson in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Dickinson weather stats

Dickinson weather statistics
Hottest month: July 28.2°C 82.8°F
Driest month: December 9mm 0.4ins
Sunniest month: July 12.4hrs
Coldest month: January -5.8°C 21.6°F
Wettest month: June 92mm 3.6ins
Map showing location of Dickinson (46.87918, -102.78962) Dickinson map pin © Google

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