September weather forecast
Carrier Mills, IL

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Carrier Mills, Illinois, with an average temperature varying between 60.4°F (15.8°C) and 80.8°F (27.1°C).

Temperature

Entering September, the average high-temperature is recorded at a still moderately hot 80.8°F (27.1°C), exhibiting a minimal shift from August's 85.6°F (29.8°C). During the nights in September, Carrier Mills observes an average low-temperature of 60.4°F (15.8°C).

Heat index

In September, the average heat index is evaluated at 84.2°F (29°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.

Humidity

The average relative humidity in September is 73%.

Rainfall

September is the month with the least rainfall in Carrier Mills. Rain falls for 10.5 days and accumulates 1.57" (40mm) of precipitation.

Snowfall

May through September are months without snowfall in Carrier Mills, Illinois.

Daylight

The average length of the day in September in Carrier Mills is 12h and 25min.
On the first day of the month, sunrise is at 6:25 am and sunset at 7:23 pm. On the last day of September, sunrise is at 6:49 am and sunset at 6:38 pm CDT.

Sunshine

In September, the average sunshine is 9.2h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: A daily high UV index of 5 in September leads to these guidelines:
Exercise prevention - Protecting skin and eyes from harm is required. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Carrier Mills?

An average high-temperature, in September, in Carrier Mills, is 80.8°F (27.1°C) and the average low-temperature is 60.4°F (15.8°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is evaluated at 84.2°F (29°C).

What is the average humidity in September in Carrier Mills?

In September, the average relative humidity is 73%.

What is the driest month in Carrier Mills?

The month with the least rainfall in Carrier Mills is September, when the rain falls for 10.5 days and typically collects 1.57" (40mm) of precipitation.

How many days does it rain in September in Carrier Mills?

In Carrier Mills, in September, it is raining for 10.5 days, with typically 1.57" (40mm) of accumulated precipitation.

When it does not snow in Carrier Mills?

May through September are months without snowfall in Carrier Mills.

Does it snow in Carrier Mills in September?

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

How many hours of daylight does Carrier Mills have in September?

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

What time are sunrise and sunset in September in Carrier Mills?

On the first day of September, sunrise is at 6:25 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:38 pm CDT.

How many hours of sunshine does Carrier Mills have in September?

In Carrier Mills, the average sunshine duration in September is 9.2h.

What is the UV index reading in September in Carrier Mills?

In September, the average daily maximum UV index in Carrier Mills, Illinois, is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Carrier Mills, IL

Average temperature in September - Carrier Mills, IL
  • Average high temperature in September: 80.8°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 (39.7°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 (26.2°F).

Average pressure in September
Carrier Mills, IL

Average pressure in September - Carrier Mills, 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
Carrier Mills, IL

Average wind speed in September - Carrier Mills, IL
  • Average wind speed in September: 6.4mph

The windiest months (with the highest average wind speed) are January and February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in September
Carrier Mills, IL

Average humidity in September - Carrier Mills, 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
Carrier Mills, IL

Average rainfall in September - Carrier Mills, IL
  • Average rainfall in September: 1.57"

The wettest month (with the highest rainfall) is April (4.8").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in September
Carrier Mills, IL

Average rainfall days in September - Carrier Mills, IL
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is November (9.7 days).

Average snowfall in September
Carrier Mills, IL

Average snowfall in September - Carrier Mills, IL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Carrier Mills, IL

Average snowfall days in September - Carrier Mills, IL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (5.3 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
Carrier Mills, IL

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 9h and 1min

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 36min).

Average sunshine days in September
Carrier Mills, IL

Average sunshine days in September - Carrier Mills, IL
  • Average sunshine days in September: 17.1 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (9.9 days).

Average UV index in September
Carrier Mills, IL

Average UV index in September - Carrier Mills, 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
Carrier Mills, IL

Average cloud cover in September - Carrier Mills, 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 September (Cloud cover 28).

Average visibility in September
Carrier Mills, IL

Average visibility in September - Carrier Mills, 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).

Carrier Mills, Illinois, USA

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