West Des Moines
Iowa, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
West Des Moines, IA

The bright red and yellow sun rising over the horizon in West Des Moines, Iowa, casting the glow over the famed City Campus Pond and trees
The bright red and yellow sun rising over the horizon in West Des Moines, Iowa, casting the glow over the famed City Campus Pond and trees
September, the first month of the autumn, in West Des Moines, is still a warm month, with average temperature fluctuating between 54°F (12.2°C) and 75.9°F (24.4°C).

Temperature

In West Des Moines, the average high-temperature marginally drops, from a warm 84°F (28.9°C) in August, to a still moderately hot 75.9°F (24.4°C). In September, the average low-temperature is 54°F (12.2°C).

Rainfall

During September, West Des Moines regularly aggregates up to 3.1" (80mm) of precipitation. During the entire year, West Des Moines aggregates up to 34.7" (881.9mm) of precipitation.

Daylight

In September, the average length of the day is 12.5h.

What is the temperature in September in West Des Moines?

In West Des Moines, in September, the average high-temperature is 75.9°F (24.4°C), and the average low-temperature is 54°F (12.2°C).

How much does it rain in West Des Moines in September?

In West Des Moines, in September, 3.1" (80mm) of precipitation is typically accumulated.

What is the average length of the day in September in West Des Moines?

The average length of the day in September in West Des Moines is 12.5h.
Average temperature in September - West Des Moines, IA
  • Average high temperature in September: 76°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (26°F).

  • Average low temperature in September: 54°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (12°F).

Average rainfall in September - West Des Moines, IA
  • Average rainfall in September: 3.2"

The wettest month (with the highest rainfall) is June (4.6").
The driest month (with the lowest rainfall) is January (1").

Average daylight in September - West Des Moines, IA
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).