September weather forecast
White City, IL

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Weather in September

September, the first month of the autumn in White City, is still a warm month, with temperature in the range of an average high of 77.9°F (25.5°C) and an average low of 59.4°F (15.2°C).

Temperature

September's advent presents an average high-temperature of a still warm 77.9°F (25.5°C), indicating a slight variation from the conditions of the previous month. White City experiences an average low-temperature reading of 59.4°F (15.2°C) throughout September.

Humidity

The average relative humidity in September is 75%.

Rainfall

In White City, during September, the rain falls for 10.4 days and regularly aggregates up to 0.83" (21mm) of precipitation. Throughout the year, there are 121.4 rainfall days, and 14.72" (374mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in White City.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:28 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:54 am and sunset at 6:42 pm CDT.

Sunshine

In September, the average sunshine is 9.3h.

UV index

In White City, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Undertake precautions - Guarding against sun damage is counselled. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

In September, the average high-temperature and low-temperature are 77.9°F (25.5°C) and 59.4°F (15.2°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 91.4°F (33°C).

What is the average humidity in September?

The average relative humidity in September is 75%.

How many days does it rain in September?

In White City, Illinois, in September, during 10.4 rainfall days, 0.83" (21mm) of precipitation is typically accumulated.

When it does not snow?

April through October are months without snowfall in White City.

How many hours of daylight does White City have in September?

In White City, the average day length in September is 12h and 26min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:28 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:42 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.3h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
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
White City, IL

Average temperature in September - White City, IL
  • Average high temperature in September: 77.9°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in September: 59.4°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

Average pressure in September
White City, IL

Average pressure in September - White City, IL
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
White City, IL

Average wind speed in September - White City, IL
  • Average wind speed in September: 6.4mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

Average humidity in September
White City, IL

Average humidity in September - White City, IL
  • Average humidity in September: 75%

The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
White City, IL

Average rainfall in September - White City, IL
  • Average rainfall in September: 0.83"

The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is February (0.67").

Average rainfall days in September
White City, IL

Average rainfall days in September - White City, IL
  • Average rainfall days in September: 10.4 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (5.8 days).

Average snowfall in September
White City, IL

Average snowfall in September - White City, IL
  • Average snowfall in September: 0"

The month with the highest snowfall is December (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
White City, IL

Average snowfall days in September - White City, IL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
White City, IL

Average daylight in September / Average sunshine in September - White City, IL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 9h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in September
White City, IL

Average sunshine days in September - White City, IL
  • Average sunshine days in September: 17.2 days

The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is July (12.5 days).

Average UV index in September
White City, IL

Average UV index in September - White City, IL
  • Average UV index in September: 5

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

Average cloud cover in September
White City, IL

Average cloud cover in September - White City, IL
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).

Average visibility in September
White City, IL

Average visibility in September - White City, IL
  • Average visibility in September: 6mi

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

White City, Illinois, USA

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