Rapid Valley Weather in September

What's the weather like in Rapid Valley (South Dakota) in September 2024?

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

September is in the fall / autumn in Rapid Valley and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 24°C (74°F), whilst at night 8°C (46°F) is normal.

Rapid Valley weather averages (imperial / metric)
Daytime temperature 23.5°C 74.3°F
Nightly temperature 7.7°C 45.9°F
Average temperature 15.6°C 60.1°F
Daily sunshine 9.4 hrs
Avg rainfall 31 mm 1.2 ins
Rainy days 7 days
Sea temperature 15.7°C 60.3°F
Humidity 54%
Windspeed 18kph 11 mph

On average September is the 6th wettest month of the year in Rapid Valley with around 31mm 1.2 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 9.4 hours of sunshine per day.

September temperatures in Rapid Valley

Rapid Valley average temperature in September

September rainfall

Rapid Valley average rain in September

September hourly sunshine

Rapid Valley 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 Rapid Valley 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

Rapid Valley weather stats

Rapid Valley weather statistics
Hottest month: July 29.7°C 85.5°F
Driest month: January 10mm 0.4ins
Sunniest month: August 11.3hrs
Coldest month: January 0.6°C 33.1°F
Wettest month: June 82mm 3.2ins
Map showing location of Rapid Valley (44.06249, -103.14629) Rapid Valley map pin © Google

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