September weather forecast
Coyne Center, IL

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Weather in September

September, the first month of the autumn in Coyne Center, is still a warm month, with an average temperature fluctuating between 75.4°F (24.1°C) and 56.3°F (13.5°C).

Temperature

The shift from August to September includes a small decrease in the average high-temperature, from a moderately hot 80.8°F (27.1°C) to a still warm 75.4°F (24.1°C). An average low-temperature of 56.3°F (13.5°C) is noted during the month of September.

Humidity

In Coyne Center, the average relative humidity in September is 76%.

Rainfall

In Coyne Center, during September, the rain falls for 6.2 days and regularly aggregates up to 0.47" (12mm) of precipitation. In Coyne Center, during the entire year, the rain falls for 75.2 days and collects up to 5.79" (147mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:29 am and sunset at 7:34 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:45 pm CDT.

Sunshine

The average sunshine in September is 9.3h.

UV index

In Coyne Center, Illinois, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 4 during September translates into the following guidance:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Experience reduced UV exposure by about half when donning a wide-brim hat.

Frequently asked questions

What is the usual temperature for Coyne Center in September?

The high-temperature during September is 75.4°F (24.1°C) and the low-temperature is 56.3°F (13.5°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 86°F (30°C).

What is the average humidity in September?

In Coyne Center, the average relative humidity in September is 76%.

How many days does it rain in September?

In Coyne Center, Illinois, in September, it is raining for 6.2 days, with typically 0.47" (12mm) of accumulated precipitation.

When it does not snow?

In Coyne Center, snow does not fall in May through September.

Does it snow in September?

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

What is the average length of the day in September?

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

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:29 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:45 pm CDT.

How many hours of sunshine does Coyne Center have in September?

In September, the average sunshine duration is 9.3h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe 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
Coyne Center, IL

Average temperature in September - Coyne Center, IL
  • Average high temperature in September: 75.4°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.2°F).

  • Average low temperature in September: 56.3°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°F).

Average pressure in September
Coyne Center, IL

Average pressure in September - Coyne Center, IL
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in September
Coyne Center, IL

Average wind speed in September - Coyne Center, IL
  • Average wind speed in September: 7.8mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).

Average humidity in September
Coyne Center, IL

Average humidity in September - Coyne Center, IL
  • Average humidity in September: 76%

The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Coyne Center, IL

Average rainfall in September - Coyne Center, IL
  • Average rainfall in September: 0.47"

The wettest month (with the highest rainfall) is May (0.94").
The driest month (with the least rainfall) is December (0.24").

Average rainfall days in September
Coyne Center, IL

Average rainfall days in September - Coyne Center, IL
  • Average rainfall days in September: 6.2 days

The month with the highest number of rainy days is May (10.4 days).
The month with the least rainy days is January (1.8 days).

Average snowfall in September
Coyne Center, IL

Average snowfall in September - Coyne Center, IL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (1.06").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Coyne Center, IL

Average snowfall days in September - Coyne Center, IL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (5.5 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
Coyne Center, IL

Average daylight in September / Average sunshine in September - Coyne Center, 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: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in September
Coyne Center, IL

Average sunshine days in September - Coyne Center, IL
  • Average sunshine days in September: 21.6 days

The month with the most sunshine days is December (25.8 days).
The month with the least sunshine days is June (15.4 days).

Average UV index in September
Coyne Center, IL

Average UV index in September - Coyne Center, 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 January (UV index 1).

Average cloud cover in September
Coyne Center, IL

Average cloud cover in September - Coyne Center, IL
  • Average cloud cover in September: 31

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in September
Coyne Center, IL

Average visibility in September - Coyne Center, 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).

Coyne Center, Illinois, USA

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