September weather forecast
Norris City, IL

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Norris City, Illinois, with an average temperature fluctuating between 79.5°F (26.4°C) and 60.8°F (16°C).

Temperature

Norris City starts September with an average high-temperature of a still moderately hot 79.5°F (26.4°C), hinting at a minimal fluctuation from August. Norris City, during September nights, observes an average temperature of 60.8°F (16°C).

Humidity

In Norris City, the average relative humidity in September is 73%.

Rainfall

The month with the least rainfall is September, when the rain falls for 7.3 days and typically collects 0.28" (7mm) of precipitation.

Snowfall

In Norris City, snow does not fall in April through October.

Daylight

In Norris City, the average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 6:23 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:37 pm CDT.

Sunshine

In Norris City, Illinois, the average sunshine in September is 9.3h.

UV index

In Norris City, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

In September, the average high-temperature and low-temperature are 79.5°F (26.4°C) and 60.8°F (16°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is estimated at 95°F (35°C).

What is the average humidity in September?

In September, the average relative humidity is 73%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 7.3 days and accumulates 0.28" (7mm) of precipitation.

How much does it rain in September?

In September, the rain falls for 7.3 days. Throughout September, 0.28" (7mm) of precipitation is accumulated.

When it does not snow?

In Norris City, snow does not fall in April through October.

What is the average length of the day in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:23 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:37 pm CDT.

How long on average sun shines in September?

In Norris City, Illinois, the average sunshine duration in September is 9.3h.

What is the UV index reading in September?

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

Average temperature in September - Norris City, IL
  • Average high temperature in September: 79.5°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.3°F).

  • Average low temperature in September: 60.8°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in September
Norris City, IL

Average pressure in September - Norris City, 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
Norris City, IL

Average wind speed in September - Norris City, IL
  • Average wind speed in September: 6.7mph

The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in September
Norris City, IL

Average humidity in September - Norris City, IL
  • Average humidity in September: 73%

The months with the highest relative humidity are May and July (79%).
The month with the lowest relative humidity is October (69%).

Average rainfall in September
Norris City, IL

Average rainfall in September - Norris City, IL
  • Average rainfall in September: 0.28"

The wettest month (with the highest rainfall) is April (1.06").
The driest month (with the least rainfall) is September (0.28").

Average rainfall days in September
Norris City, IL

Average rainfall days in September - Norris City, IL
  • Average rainfall days in September: 7.3 days

The month with the highest number of rainy days is May (11.9 days).
The month with the least rainy days is January (5 days).

Average snowfall in September
Norris City, IL

Average snowfall in September - Norris City, IL
  • Average snowfall in September: 0"

The months with the highest snowfall are January and February (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Norris City, IL

Average snowfall days in September - Norris City, IL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Norris City, IL

Average daylight in September / Average sunshine in September - Norris City, 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 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in September
Norris City, IL

Average sunshine days in September - Norris City, IL
  • Average sunshine days in September: 20.4 days

The month with the most sunshine days is October (23.4 days).
The month with the least sunshine days is May (15.8 days).

Average UV index in September
Norris City, IL

Average UV index in September - Norris City, 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, November and December (UV index 2).

Average cloud cover in September
Norris City, IL

Average cloud cover in September - Norris City, IL
  • Average cloud cover in September: 28

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 27).

Average visibility in September
Norris City, IL

Average visibility in September - Norris City, 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).

Norris City, Illinois, USA

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