September weather forecast
Wauconda, IL

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Weather in September

The first month of the autumn, September, is also an agreeable month in Wauconda, Illinois, with an average temperature ranging between min 57.2°F (14°C) and max 72.9°F (22.7°C).

Temperature

In Wauconda, the average high-temperature in September slightly decreases from a moderately hot 79.3°F (26.3°C) in August to a pleasant 72.9°F (22.7°C). Wauconda reports an average low-temperature of 57.2°F (14°C) during the nights of September.

Humidity

In Wauconda, the average relative humidity in September is 77%.

Rainfall

In Wauconda, during September, the rain falls for 13.4 days and regularly aggregates up to 2.2" (56mm) of precipitation. Throughout the year, there are 163.1 rainfall days, and 32.24" (819mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of the month, sunrise is at 6:18 am and sunset at 7:25 pm. On the last day of September, sunrise is at 6:49 am and sunset at 6:35 pm CDT.

Sunshine

In September, the average sunshine is 9h.

UV index

The average daily maximum UV index in September in Wauconda is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 4 in September suggests the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Wauconda in September?

In Wauconda, 72.9°F (22.7°C) is the average high-temperature and 57.2°F (14°C) is the average low-temperature during September. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, in July is evaluated at 86°F (30°C).

What is the average humidity in September?

In Wauconda, the average relative humidity in September is 77%.

How many days does it rain in September in Wauconda?

In September, in Wauconda, the rain falls for 13.4 days. Throughout September, 2.2" (56mm) of precipitation is accumulated.

When it does not snow?

In Wauconda, snow does not fall in June through September.

Does it snow in September?

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

How many hours of daylight does Wauconda have in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:18 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:35 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9h.

What is the UV index reading in September?

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

Average temperature in September - Wauconda, IL
  • Average high temperature in September: 72.9°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (27.7°F).

  • Average low temperature in September: 57.2°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).

Average pressure in September
Wauconda, IL

Average pressure in September - Wauconda, 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).

Average wind speed in September
Wauconda, IL

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

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in September
Wauconda, IL

Average humidity in September - Wauconda, IL
  • Average humidity in September: 77%

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

Average rainfall in September
Wauconda, IL

Average rainfall in September - Wauconda, IL
  • Average rainfall in September: 2.2"

The wettest month (with the highest rainfall) is June (4.13").
The driest month (with the least rainfall) is November (1.61").

Average rainfall days in September
Wauconda, IL

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

The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is February (5.7 days).

Average snowfall in September
Wauconda, IL

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

The month with the highest snowfall is February (6.22").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Wauconda, IL

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

The month with the highest number of snowfall days is January (15.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Wauconda, 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: 9h and 0min

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).

Average sunshine days in September
Wauconda, IL

Average sunshine days in September - Wauconda, IL
  • Average sunshine days in September: 13.4 days

The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is June (8.4 days).

Average UV index in September
Wauconda, IL

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

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

Average cloud cover in September
Wauconda, IL

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

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 31).

Average visibility in September
Wauconda, IL

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

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

Wauconda, Illinois, USA

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