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
At the onset of September, L'Erable records an average high-temperature of a still moderately hot 75°F (23.9°C), showing little deviation from the preceding month. L'Erable experiences a nighttime temperature average of 57.2°F (14°C) during September.Humidity
In September, the average relative humidity is 77%.Rainfall
In L'Erable, in September, it is raining for 11.9 days, with typically 1.65" (42mm) of accumulated precipitation. In L'Erable, during the entire year, the rain falls for 138.6 days and collects up to 21.57" (548mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September in L'Erable, Illinois, is 12h and 27min.On the first day of September, sunrise is at 6:18 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:34 pm CDT.
Sunshine
The average sunshine in September is 8.4h.UV index
In L'Erable, Illinois, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 translates into these guidelines:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What is the temperature in September in L'Erable?
What is the average humidity in September in L'Erable?
How much does it rain in L'Erable in September?
When it does not snow in L'Erable?
Does it snow in L'Erable in September?
How many hours of daylight does L'Erable have in September?
When are sunrise and sunset in September in L'Erable?
How many hours of sunshine does L'Erable have in September?
How high is the UV index in September in L'Erable?
Average temperature in September
L'Erable, IL
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in September: 57.2°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 (18.1°F).
Average pressure in September
L'Erable, IL
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
L'Erable, IL
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
L'Erable, IL
- Average humidity in September: 77%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
L'Erable, IL
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is December (0.87").
Average rainfall days in September
L'Erable, IL
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in September
L'Erable, IL
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.48").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
L'Erable, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.8 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
L'Erable, 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: 8h and 2min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
L'Erable, IL
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is July (10.1 days).
Average UV index in September
L'Erable, IL
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
L'Erable, IL
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are June and August (Cloud cover 34).
Average visibility in September
L'Erable, IL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
L'Erable, Illinois, USA
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