September weather forecast
Cameron, IL

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Cameron, Illinois, with an average temperature fluctuating between 75.9°F (24.4°C) and 56.3°F (13.5°C).

Temperature

September denotes a minimal variation in the average high-temperature to a still moderately hot 75.9°F (24.4°C) from August's 81.1°F (27.3°C). During September nights, Cameron records an average temperature of 56.3°F (13.5°C).

Humidity

In Cameron, the average relative humidity in September is 76%.

Rainfall

In Cameron, in September, during 11.6 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. Throughout the year, there are 149.4 rainfall days, and 30.16" (766mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Cameron.

Daylight

In Cameron, the average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:29 am and sunset at 7:33 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:45 pm CDT.

Sunshine

The average sunshine in September is 9.4h.

UV index

In Cameron, Illinois, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 4 during September translates into the following directions:
Be vigilant - Preventing sunburn is recommended. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Cameron in September?

In Cameron, in September, the average high-temperature is 75.9°F (24.4°C), and the average low-temperature is 56.3°F (13.5°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is calculated to be 86°F (30°C).

What is the average humidity in September?

In Cameron, the average relative humidity in September is 76%.

How much does it rain in Cameron in September?

In Cameron, in September, during 11.6 rainfall days, 2.4" (61mm) of precipitation is typically accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

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

What is the average length of the day in September?

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

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:29 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:45 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.4h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Cameron, IL

Average temperature in September - Cameron, IL
  • Average high temperature in September: 75.9°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in September: 56.3°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).

Average pressure in September
Cameron, IL

Average pressure in September - Cameron, IL
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in September
Cameron, IL

Average wind speed in September - Cameron, IL
  • Average wind speed in September: 7.8mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in September
Cameron, IL

Average humidity in September - Cameron, 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%).

Average rainfall in September
Cameron, IL

Average rainfall in September - Cameron, IL
  • Average rainfall in September: 2.4"

The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is January (1.46").

Average rainfall days in September
Cameron, IL

Average rainfall days in September - Cameron, IL
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in September
Cameron, IL

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

The month with the highest snowfall is January (4.61").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Cameron, IL

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

The month with the highest number of snowfall days is January (10.9 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
Cameron, IL

Average daylight in September / Average sunshine in September - Cameron, 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: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in September
Cameron, IL

Average sunshine days in September - Cameron, IL
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (9.2 days).

Average UV index in September
Cameron, IL

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

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in September
Cameron, IL

Average cloud cover in September - Cameron, IL
  • Average cloud cover in September: 30

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 30).

Average visibility in September
Cameron, IL

Average visibility in September - Cameron, IL
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

Cameron, Illinois, USA

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