September weather forecast
Benton, IL

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Weather in September

The first month of the autumn, September, is still a warm month in Benton, Illinois, with temperature in the range of an average high of 80.1°F (26.7°C) and an average low of 60.4°F (15.8°C).

Temperature

The onset of September is marked by a minor decrease in temperature, transitioning from 85.5°F (29.7°C) in August to a still warm 80.1°F (26.7°C). An average low-temperature of 60.4°F (15.8°C) is noted during the month of September.

Humidity

In September, the average relative humidity is 73%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.4 days and accumulates 1.97" (50mm) of precipitation.

Snowfall

In Benton, snow does not fall in May through September.

Daylight

The average length of the day in September in Benton is 12h and 25min.
On the first day of September in Benton, Illinois, sunrise is at 6:26 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:39 pm CDT.

Sunshine

The average sunshine in September is 9.2h.

UV index

In Benton, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 5 in September interprets into the following advice:
Guard yourself - Avoiding sunburn is suggested. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Boost your sun resistance with garments that are densely woven yet spacious.
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Frequently asked questions

What are September temperatures in Benton?

In September, the average high-temperature and low-temperature in Benton, Illinois, are 80.1°F (26.7°C) and 60.4°F (15.8°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, is appraised at 96.8°F (36°C).

What is the average humidity in September in Benton?

In Benton, Illinois, the average relative humidity in September is 73%.

What is the driest month in Benton?

The month with the least rainfall in Benton is September, when the rain falls for 13.4 days and typically collects 1.97" (50mm) of precipitation.

How many days does it rain in September in Benton?

In Benton, Illinois, during September, the rain falls for 13.4 days and regularly aggregates up to 1.97" (50mm) of precipitation.

When it does not snow in Benton?

In Benton, snow does not fall in May through September.

Does it snow in Benton in September?

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

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

The average day length in September is 12h and 25min.

What time are sunrise and sunset in September in Benton?

On the first day of September, sunrise is at 6:26 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:39 pm CDT.

How long on average sun shines in September in Benton?

In September, the average sunshine duration in Benton is 9.2h.

How high is the UV index in September in Benton?

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

Average temperature in September - Benton, IL
  • Average high temperature in September: 80.1°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in September: 60.4°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in September
Benton, IL

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Benton, IL

Average wind speed in September - Benton, IL
  • Average wind speed in September: 6.5mph

The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in September
Benton, IL

Average humidity in September - Benton, IL
  • Average humidity in September: 73%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in September
Benton, IL

Average rainfall in September - Benton, IL
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is April (4.92").
The driest month (with the least rainfall) is September (1.97").

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Average rainfall days in September
Benton, IL

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

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (9.7 days).

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Average snowfall in September
Benton, IL

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

The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Benton, IL

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

The month with the highest number of snowfall days is January (6.1 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
Benton, IL

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 9h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in September
Benton, IL

Average sunshine days in September - Benton, IL
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is June (9.9 days).

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Average UV index in September
Benton, IL

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

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

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Average cloud cover in September
Benton, IL

Average cloud cover in September - Benton, IL
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).

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Average visibility in September
Benton, IL

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

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