September weather forecast
Westview, IA

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Weather in September

The first month of the autumn, September, is still a warm month in Westview, Iowa, with an average temperature fluctuating between 73.9°F (23.3°C) and 54.5°F (12.5°C).

Temperature

The onset of September marks an average high-temperature of a still moderately hot 73.9°F (23.3°C), hardly differing from August's 78.8°F (26°C). The nighttime temperature, during September, averages of 54.5°F (12.5°C).

Humidity

In September, the average relative humidity is 74%.

Rainfall

In Westview, during September, the rain falls for 9.4 days and regularly aggregates up to 0.83" (21mm) of precipitation. Throughout the year, in Westview, there are 93.7 rainfall days, and 9.29" (236mm) of precipitation is accumulated.

Snowfall

In Westview, snow does not fall in May through September.

Daylight

In Westview, the average length of the day in September is 12h and 29min.
On the first day of September, sunrise is at 6:44 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:01 pm CDT.

Sunshine

In Westview, the average sunshine in September is 9.2h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 4 during September, leads to the following recommendations:
Act with care - The need to guard against sun damage is communicated. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Updated: Jun 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Westview in September?

In Westview, in September, the average high-temperature is 73.9°F (23.3°C), and the average low-temperature is 54.5°F (12.5°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in July is estimated at 86°F (30°C).

What is the average humidity in September in Westview?

The average relative humidity in September is 74%.

How many days does it rain in September?

In September, in Westview, the rain falls for 9.4 days. Throughout September, 0.83" (21mm) of precipitation is accumulated.

When it does not snow?

In Westview, snow does not fall in May through September.

Does it snow in September?

In Westview, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September?

In September, the average day length in Westview is 12h and 29min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:44 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:01 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.2h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Westview, IA

Average temperature in September - Westview, IA
  • Average high temperature in September: 73.9°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (24.4°F).

  • Average low temperature in September: 54.5°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (11.8°F).

Average pressure in September
Westview, IA

Average pressure in September - Westview, IA
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in September
Westview, IA

Average wind speed in September - Westview, IA
  • Average wind speed in September: 8.6mph

The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

Average humidity in September
Westview, IA

Average humidity in September - Westview, IA
  • Average humidity in September: 74%

The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (68%).

Average rainfall in September
Westview, IA

Average rainfall in September - Westview, IA
  • Average rainfall in September: 0.83"

The wettest month (with the highest rainfall) is May (1.38").
The driest month (with the least rainfall) is January (0.28").

Average rainfall days in September
Westview, IA

Average rainfall days in September - Westview, IA
  • Average rainfall days in September: 9.4 days

The month with the highest number of rainy days is May (13 days).
The month with the least rainy days is February (2.3 days).

Average snowfall in September
Westview, IA

Average snowfall in September - Westview, IA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Westview, IA

Average snowfall days in September - Westview, IA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Westview, IA

Average daylight in September / Average sunshine in September - Westview, IA
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in September
Westview, IA

Average sunshine days in September - Westview, IA
  • Average sunshine days in September: 18.6 days

The month with the most sunshine days is November (23.3 days).
The month with the least sunshine days is June (14.7 days).

Average UV index in September
Westview, IA

Average UV index in September - Westview, IA
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Westview, IA

Average cloud cover in September - Westview, IA
  • Average cloud cover in September: 30

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in September
Westview, IA

Average visibility in September - Westview, IA
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

Westview, Iowa, USA

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