September weather forecast
East Peoria, IL

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Weather in September

September, the first month of the autumn in East Peoria, is still a warm month, with an average temperature varying between 76.1°F (24.5°C) and 57.2°F (14°C).

Temperature

September's weather records an average high-temperature of a still moderately hot 76.1°F (24.5°C), showing little deviation from August. In East Peoria, the nighttime temperature averages to a moderate 57.2°F (14°C) during September.

Humidity

The average relative humidity in September is 76%.

Rainfall

In East Peoria, Illinois, in September, during 10.5 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. In East Peoria, Illinois, during the entire year, the rain falls for 129.2 days and collects up to 17.24" (438mm) of precipitation.

Snowfall

May through September are months without snowfall in East Peoria.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of September in East Peoria, Illinois, sunrise is at 6:26 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:41 pm CDT.

Sunshine

In East Peoria, Illinois, the average sunshine in September is 9.3h.

UV index

The average daily maximum UV index in September in East Peoria 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 average person.
Note: In September, a daily UV index of 5 turns into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Frequently asked questions

What is the temperature in September in East Peoria?

In East Peoria, 76.1°F (24.5°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. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 87.8°F (31°C).

What is the average humidity in September in East Peoria?

The average relative humidity in September is 76%.

How much does it rain in East Peoria in September?

In September, in East Peoria, the rain falls for 10.5 days. Throughout September, 1.42" (36mm) of precipitation is accumulated.

When it does not snow in East Peoria?

May through September are months without snowfall.

Does it snow in East Peoria in September?

In East Peoria, Illinois, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does East Peoria have in September?

In September, the average day length is 12h and 27min.

What time are sunrise and sunset in September in East Peoria?

On the first day of September, sunrise is at 6:26 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:41 pm CDT.

How long on average sun shines in September in East Peoria?

In East Peoria, Illinois, the average sunshine duration in September is 9.3h.

How high is the UV index in September in East Peoria?

The average daily maximum UV index in September in East Peoria, Illinois, is 5. A UV Index of 3 to 5 symbolizes a medium health risk 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
East Peoria, IL

Average temperature in September - East Peoria, IL
  • Average high temperature in September: 76.1°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in September: 57.2°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in September
East Peoria, IL

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in September
East Peoria, IL

Average wind speed in September - East Peoria, IL
  • Average wind speed in September: 7.6mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity in September
East Peoria, IL

Average humidity in September - East Peoria, IL
  • Average humidity in September: 76%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
East Peoria, IL

Average rainfall in September - East Peoria, IL
  • Average rainfall in September: 1.42"

The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is January (0.75").

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Average rainfall days in September
East Peoria, IL

Average rainfall days in September - East Peoria, IL
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (4.6 days).

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Average snowfall in September
East Peoria, IL

Average snowfall in September - East Peoria, IL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.36").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
East Peoria, IL

Average snowfall days in September - East Peoria, IL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (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
East Peoria, IL

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 9h and 2min

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
East Peoria, IL

Average sunshine days in September - East Peoria, IL
  • Average sunshine days in September: 17.9 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.3 days).

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Average UV index in September
East Peoria, IL

Average UV index in September - East Peoria, IL
  • Average UV index in September: 5

The months with the highest UV index are June, July and August (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
East Peoria, IL

Average cloud cover in September - East Peoria, IL
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).

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Average visibility in September
East Peoria, IL

Average visibility in September - East Peoria, 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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East Peoria, Illinois, USA

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