September weather forecast
Bellwood, IL

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Weather in September

September, the first month of the autumn in Bellwood, is also a moderately hot month, with an average temperature varying between 73.4°F (23°C) and 58.6°F (14.8°C).

Temperature

Bellwood records a mild change in average high-temperature during September, easing from a moderately hot 80.2°F (26.8°C) in August to a still warm 73.4°F (23°C). An average low-temperature of 58.6°F (14.8°C) is anticipated throughout the nights in Bellwood during September.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Bellwood, in September, it is raining for 13.5 days, with typically 1.89" (48mm) of accumulated precipitation. In Bellwood, Illinois, during the entire year, the rain falls for 149.4 days and collects up to 25.08" (637mm) of precipitation.

Snowfall

In Bellwood, snow does not fall in June 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 6:18 am and sunset at 7:24 pm. On the last day of September, sunrise is at 6:48 am and sunset at 6:34 pm CDT.

Sunshine

In September, the average sunshine is 8.8h.

UV index

In Bellwood, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: An average maximum UV index of 4 in September leads to these recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

What are the temperatures in Bellwood in September?

The high-temperature in Bellwood, Illinois, during September is 73.4°F (23°C) and the low-temperature is 58.6°F (14.8°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in July is estimated at 87.8°F (31°C).

What is the average humidity in September in Bellwood?

In Bellwood, the average relative humidity in September is 74%.

How many days does it rain in September in Bellwood?

In Bellwood, in September, it is raining for 13.5 days, with typically 1.89" (48mm) of accumulated precipitation.

When it does not snow in Bellwood?

June through September are months without snowfall in Bellwood.

Does it snow in Bellwood in September?

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

How many hours of daylight does Bellwood have in September?

The average day length in September in Bellwood is 12h and 28min.

When are sunrise and sunset in September in Bellwood?

On the first day of September, sunrise is at 6:18 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:34 pm CDT.

How long on average sun shines in September in Bellwood?

The average sunshine duration in September in Bellwood is 8.8h.

How high is the UV index in September in Bellwood?

In Bellwood, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Bellwood, IL

Average temperature in September - Bellwood, IL
  • Average high temperature in September: 73.4°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in September: 58.6°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18°F).

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Average pressure in September
Bellwood, IL

Average pressure in September - Bellwood, 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
Bellwood, IL

Average wind speed in September - Bellwood, IL
  • Average wind speed in September: 7.5mph

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
Bellwood, IL

Average humidity in September - Bellwood, IL
  • Average humidity in September: 74%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in September
Bellwood, IL

Average rainfall in September - Bellwood, IL
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is December (1.14").

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Average rainfall days in September
Bellwood, IL

Average rainfall days in September - Bellwood, IL
  • Average rainfall days in September: 13.5 days

The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is February (5.1 days).

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Average snowfall in September
Bellwood, IL

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

The month with the highest snowfall is February (3.86").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Bellwood, IL

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

The month with the highest number of snowfall days is January (12.4 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
Bellwood, IL

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

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

  • Average sunshine in September: 8h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in September
Bellwood, IL

Average sunshine days in September - Bellwood, IL
  • Average sunshine days in September: 13 days

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is July (9.5 days).

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Average UV index in September
Bellwood, IL

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

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in September
Bellwood, IL

Average cloud cover in September - Bellwood, IL
  • Average cloud cover in September: 31

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in September
Bellwood, IL

Average visibility in September - Bellwood, 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).

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Bellwood, Illinois, USA

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