September weather forecast
Orient, IL

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Weather in September

September, the first month of the autumn in Orient, is also a moderately hot month, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 80.1°F (26.7°C).

Temperature

Start of September brings a slight shift in the average high-temperature, dipping a bit from August's warm 85.5°F (29.7°C) to a still moderately hot 80.1°F (26.7°C). Orient experiences a nighttime temperature average of 60.4°F (15.8°C) during September.

Humidity

In September, the average relative humidity is 73%.

Rainfall

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

Snowfall

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

Daylight

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

Sunshine

In Orient, Illinois, the average sunshine in September is 9.2h.

UV index

The average daily maximum UV index in September in Orient is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 5 during September translates into these guidelines:
Be vigilant - A duty to shield skin and eyes from injury exists. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in Orient?

The average high-temperature and low-temperature in Orient, Illinois, during September are 80.1°F (26.7°C) and 60.4°F (15.8°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, in August is calculated to be 96.8°F (36°C).

What is the average humidity in September in Orient?

The average relative humidity in September in Orient is 73%.

What is the driest month in Orient?

The month with the least rainfall in Orient 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 Orient?

In Orient, Illinois, in September, it is raining for 13.4 days, with typically 1.97" (50mm) of accumulated precipitation.

When it does not snow in Orient?

In Orient, Illinois, snow does not fall in May through September.

Does it snow in Orient in September?

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

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

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

When are sunrise and sunset in September in Orient?

In September, on the first day of the month, 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 Orient?

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

What is the UV index reading in September in Orient?

The average daily maximum UV index in September in Orient is 5. A UV Index reading 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
Orient, IL

Average temperature in September - Orient, 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).

Average pressure in September
Orient, IL

Average pressure in September - Orient, 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).

Average wind speed in September
Orient, IL

Average wind speed in September - Orient, 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).

Average humidity in September
Orient, IL

Average humidity in September - Orient, 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%).

Average rainfall in September
Orient, IL

Average rainfall in September - Orient, 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").

Average rainfall days in September
Orient, IL

Average rainfall days in September - Orient, 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).

Average snowfall in September
Orient, IL

Average snowfall in September - Orient, 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").

Average snowfall days in September
Orient, IL

Average snowfall days in September - Orient, 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).

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

Average daylight in September / Average sunshine in September - Orient, 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).

Average sunshine days in September
Orient, IL

Average sunshine days in September - Orient, 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).

Average UV index in September
Orient, IL

Average UV index in September - Orient, 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).

Average cloud cover in September
Orient, IL

Average cloud cover in September - Orient, 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).

Average visibility in September
Orient, IL

Average visibility in September - Orient, 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).

Orient, Illinois, USA

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