September weather forecast
Odell, IL

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Weather in September

September, the first month of the autumn in Odell, is also a moderately hot month, with temperature in the range of an average high of 74.8°F (23.8°C) and an average low of 57°F (13.9°C).

Temperature

As August turns into September, the average high-temperatures rest at a still warm 74.8°F (23.8°C), showing a minor variation from the prior month. During September, the nighttime temperature averages to a refreshing 57°F (13.9°C).

Humidity

The average relative humidity in September is 77%.

Rainfall

In Odell, in September, it is raining for 9.9 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, in Odell, there are 117.5 rainfall days, and 13.74" (349mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:21 am and sunset at 7:26 pm. On the last day of September, in Odell, Illinois, sunrise is at 6:50 am and sunset at 6:37 pm CDT.

Sunshine

The average sunshine in September is 8.8h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 4 suggests this advice:
Make use of precautions - It is urged to ward off sun damage. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

In September, in Odell, the average high-temperature is 74.8°F (23.8°C), and the average low-temperature is 57°F (13.9°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in July is estimated at 87.8°F (31°C).

What is the average humidity in September?

In September, the average relative humidity is 77%.

How many days does it rain in September?

In Odell, in September, it is raining for 9.9 days, with typically 1.02" (26mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Odell have in September?

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

When are sunrise and sunset in September in Odell?

In September, on the first day of the month, sunrise is at 6:21 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:37 pm CDT.

How many hours of sunshine does Odell have in September?

In Odell, the average sunshine duration in September is 8.8h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's 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
Odell, IL

Average temperature in September - Odell, IL
  • Average high temperature in September: 74.8°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in September: 57°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in September
Odell, IL

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Odell, IL

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

The windiest months (with the highest average wind speed) are January and April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in September
Odell, IL

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

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Odell, IL

Average rainfall in September - Odell, IL
  • Average rainfall in September: 1.02"

The wettest month (with the highest rainfall) is May (2.09").
The driest months (with the least rainfall) are February and November (0.63").

Average rainfall days in September
Odell, IL

Average rainfall days in September - Odell, IL
  • Average rainfall days in September: 9.9 days

The months with the highest number of rainy days are May and July (14.8 days).
The month with the least rainy days is February (3.7 days).

Average snowfall in September
Odell, IL

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

The month with the highest snowfall is February (1.26").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Odell, IL

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

The month with the highest number of snowfall days is January (9.9 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
Odell, IL

Average daylight in September / Average sunshine in September - Odell, 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 18min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in September
Odell, IL

Average sunshine days in September - Odell, IL
  • Average sunshine days in September: 17.3 days

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in September
Odell, IL

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

The months with the highest UV index are June, 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
Odell, IL

Average cloud cover in September - Odell, IL
  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 34).

Average visibility in September
Odell, IL

Average visibility in September - Odell, 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).

Odell, Illinois, USA

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