Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Carrollton experiences a recorded average high-temperature of a still moderately hot 78.3°F (25.7°C) in September, closely aligned with August's 83.5°F (28.6°C). Carrollton experiences a nighttime temperature average of 59.2°F (15.1°C) during September.Humidity
In September, the average relative humidity is 74%.Rainfall
In Carrollton, during September, the rain falls for 10.4 days and regularly aggregates up to 0.91" (23mm) of precipitation. In Carrollton, during the entire year, the rain falls for 120.6 days and collects up to 14.17" (360mm) of precipitation.Snowfall
In Carrollton, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:31 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:45 pm CDT.
Sunshine
In Carrollton, the average sunshine in September is 9.5h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 5 in September translates into these instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Carrollton have in September?
What is the UV index intensity in September?
Average temperature in September
Carrollton, IL
- Average high temperature in September: 78.3°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in September: 59.2°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in September
Carrollton, IL
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Carrollton, IL
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in September
Carrollton, IL
- Average humidity in September: 74%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Carrollton, IL
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is June (1.93").
The driest month (with the least rainfall) is November (0.67").
Average rainfall days in September
Carrollton, IL
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in September
Carrollton, IL
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Carrollton, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6 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
Carrollton, IL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in September
Carrollton, IL
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in September
Carrollton, IL
- Average UV index in September: 5
The months with the highest UV index are 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
Carrollton, IL
- Average cloud cover in September: 28
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are August and September (Cloud cover 28).
Average visibility in September
Carrollton, 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).
Carrollton, Illinois, USA
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