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
Channahon notes an average high-temperature of a still warm 74.7°F (23.7°C) in September, displaying minor variation from August. In Channahon, the average temperature during the nights of September drops to a refreshing 56.7°F (13.7°C).Humidity
In September, the average relative humidity in Channahon is 78%.Rainfall
In September, the rain falls for 12.5 days. Throughout September, 2.48" (63mm) of precipitation is accumulated. Throughout the year, there are 154.5 rainfall days, and 32.68" (830mm) of precipitation is accumulated.Snowfall
In Channahon, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:19 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:35 pm CDT.
Sunshine
In September, the average sunshine in Channahon, Illinois, is 8.6h.UV index
In Channahon, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
What are the temperatures in Channahon in September?
What is the average humidity in September in Channahon?
How much does it rain in Channahon in September?
When it does not snow in Channahon?
How many hours of daylight does Channahon have in September?
What time are sunrise and sunset in September in Channahon?
How many hours of sunshine does Channahon have in September?
What is the UV index reading in September in Channahon?
Average temperature in September
Channahon, IL
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in September: 56.7°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in September
Channahon, IL
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Channahon, IL
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in September
Channahon, IL
- Average humidity in September: 78%
The months with the highest relative humidity are February, July and August (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Channahon, IL
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is February (1.61").
Average rainfall days in September
Channahon, IL
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in September
Channahon, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.17").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Channahon, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.3 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
Channahon, 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 12min).
- Average sunshine in September: 8h and 4min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Channahon, IL
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in September
Channahon, 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 December (UV index 1).
Average cloud cover in September
Channahon, IL
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in September
Channahon, IL
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Channahon, Illinois, USA
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