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
August's transformation into September witnesses an average high-temperature of a still moderately hot 77.4°F (25.2°C), noting a minor change from the preceding month. Mount Auburn, in September, observes a steady average low-temperature of 58.6°F (14.8°C).Humidity
The average relative humidity in September in Mount Auburn, Illinois, is 75%.Rainfall
In Mount Auburn, in September, during 12 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. Throughout the year, there are 141.7 rainfall days, and 22.72" (577mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Mount Auburn.Daylight
The average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:25 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:40 pm CDT.
Sunshine
In Mount Auburn, the average sunshine in September is 9.3h.UV index
In Mount Auburn, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September in Mount Auburn?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Mount Auburn have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Mount Auburn have in September?
How high is the UV index in September?
Average temperature in September
Mount Auburn, IL
- Average high temperature in September: 77.4°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in September: 58.6°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).
Average pressure in September
Mount Auburn, IL
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Mount Auburn, IL
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in September
Mount Auburn, IL
- Average humidity in September: 75%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Mount Auburn, IL
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is April (2.64").
The driest month (with the least rainfall) is December (1.14").
Average rainfall days in September
Mount Auburn, IL
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in September
Mount Auburn, IL
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Mount Auburn, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.3 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
Mount Auburn, 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 24min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Mount Auburn, IL
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is July (11 days).
Average UV index in September
Mount Auburn, 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
Mount Auburn, IL
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
Mount Auburn, 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).
Mount Auburn, Illinois, USA
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