September weather forecast
North Aurora, IL

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Weather in September

The first month of the autumn, September, is still a warm month in North Aurora, Illinois, with temperature in the range of an average low of 56.3°F (13.5°C) and an average high of 73.6°F (23.1°C).

Temperature

With the arrival of September, North Aurora experiences a modest decline in average high-temperatures, transitioning from a moderately hot 79.3°F (26.3°C) in August to a still warm 73.6°F (23.1°C). Throughout September in North Aurora, a steady low-temperature average of 56.3°F (13.5°C) is noted.

Humidity

In September, the average relative humidity is 79%.

Rainfall

In September, in North Aurora, the rain falls for 8.8 days. Throughout September, 0.87" (22mm) of precipitation is accumulated. In North Aurora, Illinois, during the entire year, the rain falls for 120.4 days and collects up to 12.32" (313mm) of precipitation.

Snowfall

May through September are months without snowfall in North Aurora.

Daylight

In September, the average length of the day in North Aurora is 12h and 28min.
On the first day of the month, sunrise is at 6:19 am and sunset at 7:26 pm. On the last day of September, in North Aurora, sunrise is at 6:49 am and sunset at 6:36 pm CDT.

Sunshine

The average sunshine in September in North Aurora, Illinois, is 8.8h.

UV index

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Frequently asked questions

What is the temperature in September in North Aurora?

An average high-temperature, in September, in North Aurora, is 73.6°F (23.1°C) and the average low-temperature is 56.3°F (13.5°C). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 87.8°F (31°C).

What is the average humidity in September in North Aurora?

The average relative humidity in September in North Aurora, Illinois, is 79%.

How much does it rain in North Aurora in September?

In North Aurora, during September, the rain falls for 8.8 days and regularly aggregates up to 0.87" (22mm) of precipitation.

When it does not snow in North Aurora?

In North Aurora, snow does not fall in May through September.

Does it snow in North Aurora in September?

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

What is the average length of the day in September in North Aurora?

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

When are sunrise and sunset in September in North Aurora?

On the first day of September in North Aurora, Illinois, sunrise is at 6:19 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:36 pm CDT.

How many hours of sunshine does North Aurora have in September?

In North Aurora, the average sunshine duration in September is 8.8h.

What is the UV index reading in September in North Aurora?

In North Aurora, Illinois, the average daily maximum UV index in September is 4. A UV Index value 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
North Aurora, IL

Average temperature in September - North Aurora, IL
  • Average high temperature in September: 73.6°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in September: 56.3°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (16°F).

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Average pressure in September
North Aurora, IL

Average pressure in September - North Aurora, 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
North Aurora, IL

Average wind speed in September - North Aurora, IL
  • Average wind speed in September: 7mph

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in September
North Aurora, IL

Average humidity in September - North Aurora, IL
  • Average humidity in September: 79%

The months with the highest relative humidity are January, February and July (83%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in September
North Aurora, IL

Average rainfall in September - North Aurora, IL
  • Average rainfall in September: 0.87"

The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is February (0.51").

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Average rainfall days in September
North Aurora, IL

Average rainfall days in September - North Aurora, IL
  • Average rainfall days in September: 8.8 days

The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is January (4.3 days).

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Average snowfall in September
North Aurora, IL

Average snowfall in September - North Aurora, IL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
North Aurora, IL

Average snowfall days in September - North Aurora, IL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9.1 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
North Aurora, IL

Average daylight in September / Average sunshine in September - North Aurora, 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 month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in September
North Aurora, IL

Average sunshine days in September - North Aurora, IL
  • Average sunshine days in September: 19.3 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is June (11.4 days).

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Average UV index in September
North Aurora, IL

Average UV index in September - North Aurora, IL
  • 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 and December (UV index 1).

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Average cloud cover in September
North Aurora, IL

Average cloud cover in September - North Aurora, IL
  • Average cloud cover in September: 32

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 32).

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Average visibility in September
North Aurora, IL

Average visibility in September - North Aurora, IL
  • Average visibility in September: 6mi

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

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North Aurora, Illinois, USA

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