September weather forecast
Kansas, IL

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Weather in September

The first month of the autumn, September, is still a warm month in Kansas, Illinois, with an average temperature ranging between max 77.2°F (25.1°C) and min 58.6°F (14.8°C).

Temperature

During September, Kansas observes a subtle ascent to a still warm 77.2°F (25.1°C) from August's 81.1°F (27.3°C) in the average high-temperature. An average temperature of 58.6°F (14.8°C) marks the nights in Kansas in September.

Humidity

The average relative humidity in September is 76%.

Rainfall

In Kansas, in September, during 11 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. Throughout the year, in Kansas, there are 133.4 rainfall days, and 19.49" (495mm) of precipitation is accumulated.

Snowfall

In Kansas, snow does not fall in May through October.

Daylight

In September, the average length of the day in Kansas is 12h and 26min.
On the first day of the month, sunrise is at 6:20 am and sunset at 7:22 pm. On the last day of September, sunrise is at 6:47 am and sunset at 6:35 pm CDT.

Sunshine

In Kansas, the average sunshine in September is 9h.

UV index

In Kansas, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 5 during September translates into the following guidance:
Exercise prevention - Warding off sunburn is urged. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What is the usual temperature for Kansas in September?

In Kansas, in September, the average high-temperature is 77.2°F (25.1°C), and the average low-temperature is 58.6°F (14.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is computed to be 87.8°F (31°C).

What is the average humidity in September in Kansas?

In September, the average relative humidity is 76%.

How many days does it rain in September in Kansas?

In Kansas, in September, during 11 rainfall days, 1.1" (28mm) of precipitation is typically accumulated.

When it does not snow in Kansas?

In Kansas, Illinois, snow does not fall in May through October.

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

The average day length in September in Kansas, Illinois, is 12h and 26min.

When are sunrise and sunset in September in Kansas?

On the first day of September, sunrise is at 6:20 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:35 pm CDT.

How many hours of sunshine does Kansas have in September?

In Kansas, Illinois, the average sunshine duration in September is 9h.

How high is the UV index in September in Kansas?

In Kansas, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Kansas, IL

Average temperature in September - Kansas, IL
  • Average high temperature in September: 77.2°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in September: 58.6°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 (21.7°F).

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Average pressure in September
Kansas, IL

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Kansas, IL

Average wind speed in September - Kansas, IL
  • Average wind speed in September: 6.9mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).

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Average humidity in September
Kansas, IL

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

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

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Average rainfall in September
Kansas, IL

Average rainfall in September - Kansas, IL
  • Average rainfall in September: 1.1"

The wettest month (with the highest rainfall) is April (2.76").
The driest month (with the least rainfall) is February (0.94").

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Average rainfall days in September
Kansas, IL

Average rainfall days in September - Kansas, IL
  • Average rainfall days in September: 11 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (6.3 days).

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Average snowfall in September
Kansas, IL

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

The month with the highest snowfall is December (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Kansas, IL

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

The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Kansas, IL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in September
Kansas, IL

Average sunshine days in September - Kansas, IL
  • Average sunshine days in September: 17.2 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.3 days).

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Average UV index in September
Kansas, IL

Average UV index in September - Kansas, IL
  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Kansas, IL

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

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are June, August and September (Cloud cover 31).

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Average visibility in September
Kansas, IL

Average visibility in September - Kansas, 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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Kansas, Illinois, USA

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