Duncan Weather in September

What's the weather like in Duncan (Oklahoma) in September 2024?

The climate in Duncan during September can be summarized as hot and a little damp.

September is in the fall / autumn in Duncan and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 30°C (85°F), whilst at night 17°C (62°F) is normal.

Duncan weather averages (imperial / metric)
Daytime temperature 29.6°C 85.2°F
Nightly temperature 16.9°C 62.3°F
Average temperature 23.2°C 73.8°F
Daily sunshine 9.3 hrs
Avg rainfall 81 mm 3.2 ins
Rainy days 7 days
Sea temperature 23°C 73.4°F
Humidity 67%
Windspeed 17.6kph 11 mph

On average September is the 3rd wettest month of the year in Duncan with around 81mm 3.2 inches of rain making it a a little damp 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 9.3 hours of sunshine per day.

September temperatures in Duncan

Duncan average temperature in September

September rainfall

Duncan average rain in September

September hourly sunshine

Duncan 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 Duncan in September 2024.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Duncan weather stats

Duncan weather statistics
Hottest month: July 34.5°C 94.1°F
Driest month: January 25mm 1ins
Sunniest month: July 12.1hrs
Coldest month: January 9.7°C 49.5°F
Wettest month: May 124mm 4.9ins
Map showing location of Duncan (34.5023, -97.95781) Duncan map pin © Google

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