September weather forecast
Homewood, IL

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Weather in September

September, the first month of the autumn in Homewood, is still a warm month, with an average temperature ranging between min 58.3°F (14.6°C) and max 73.9°F (23.3°C).

Temperature

The arrival of September corresponds with a light shift in temperature, down from a warm 80.1°F (26.7°C) in August to a still moderately hot 73.9°F (23.3°C). Throughout September, the temperature falls to an average low of 58.3°F (14.6°C).

Humidity

The average relative humidity in September in Homewood is 76%.

Rainfall

In Homewood, Illinois, during September, the rain falls for 13.4 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, there are 155.6 rainfall days, and 31.3" (795mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:17 am and sunset at 7:23 pm. On the last day of September, in Homewood, sunrise is at 6:47 am and sunset at 6:33 pm CDT.

Sunshine

In September, the average sunshine in Homewood is 8.8h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the UV index of 4 transforms into the following advice:
Ensure safety - Recommendations to avert sunburn are presented. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What is the temperature in September in Homewood?

The average high-temperature, in September, in Homewood, is 73.9°F (23.3°C), while the average low-temperature is 58.3°F (14.6°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in July is estimated at 87.8°F (31°C).

What is the average humidity in September in Homewood?

The average relative humidity in September in Homewood, Illinois, is 76%.

How many days does it rain in September in Homewood?

In Homewood, during September, the rain falls for 13.4 days and regularly aggregates up to 2.48" (63mm) of precipitation.

When it does not snow in Homewood?

In Homewood, Illinois, snow does not fall in May through September.

Does it snow in Homewood in September?

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

What is the average length of the day in September in Homewood?

In Homewood, the average day length in September is 12h and 28min.

What time are sunrise and sunset in September in Homewood?

On the first day of September in Homewood, sunrise is at 6:17 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:33 pm CDT.

How many hours of sunshine does Homewood have in September?

In September, the average sunshine duration in Homewood, Illinois, is 8.8h.

How high is the UV index in September in Homewood?

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health threat 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
Homewood, IL

Average temperature in September - Homewood, IL
  • Average high temperature in September: 73.9°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in September: 58.3°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in September
Homewood, IL

Average pressure in September - Homewood, IL
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in September
Homewood, IL

Average wind speed in September - Homewood, IL
  • Average wind speed in September: 7.3mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in September
Homewood, IL

Average humidity in September - Homewood, IL
  • Average humidity in September: 76%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in September
Homewood, IL

Average rainfall in September - Homewood, IL
  • Average rainfall in September: 2.48"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is December (1.54").

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Average rainfall days in September
Homewood, IL

Average rainfall days in September - Homewood, IL
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (6.1 days).

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Average snowfall in September
Homewood, IL

Average snowfall in September - Homewood, IL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Homewood, IL

Average snowfall days in September - Homewood, IL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Homewood, IL

Average daylight in September / Average sunshine in September - Homewood, IL
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in September
Homewood, IL

Average sunshine days in September - Homewood, IL
  • Average sunshine days in September: 14 days

The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is April (10.2 days).

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Average UV index in September
Homewood, IL

Average UV index in September - Homewood, IL
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
Homewood, IL

Average cloud cover in September - Homewood, IL
  • Average cloud cover in September: 32

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in September
Homewood, IL

Average visibility in September - Homewood, IL
  • Average visibility in September: 6mi

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

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Homewood, Illinois, USA

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