September weather forecastAroma Park, IL
September
Weather in September
September, the first month of the autumn in Aroma Park, is also a moderately hot month, with an average temperature varying between 75°F (23.9°C) and 57°F (13.9°C).Temperature
September's presence marks an average high-temperature of a still warm 75°F (23.9°C), subtly varied from August's 80.1°F (26.7°C). In Aroma Park, September nights cool down to an average of 57°F (13.9°C).Humidity
In Aroma Park, the average relative humidity in September is 77%.Rainfall
In September, the rain falls for 6.4 days. Throughout September, 0.43" (11mm) of precipitation is accumulated. In Aroma Park, during the entire year, the rain falls for 80.5 days and collects up to 6.22" (158mm) of precipitation.Snowfall
In Aroma Park, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 6:18 am and sunset at 7:23 pm. On the last day of September, sunrise is at 6:47 am and sunset at 6:34 pm CDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a regular UV index of 5 translates into these guidelines:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Aroma Park, 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°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in September
Aroma Park, 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
Aroma Park, IL
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in September
Aroma Park, IL
- Average humidity in September: 77%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Aroma Park, IL
- Average rainfall in September: 0.43"
The wettest month (with the highest rainfall) is May (1.06").
The driest month (with the least rainfall) is November (0.28").
Average rainfall days in September
Aroma Park, IL
- Average rainfall days in September: 6.4 days
The month with the highest number of rainy days is May (11.4 days).
The month with the least rainy days is January (2.3 days).
Average snowfall in September
Aroma Park, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Aroma Park, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.8 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
Aroma Park, IL
- Average daylight in September: 12h and 30min
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 36min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Aroma Park, IL
- Average sunshine days in September: 21.6 days
The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is June (15.7 days).
Average UV index in September
Aroma Park, IL
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Aroma Park, 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
Aroma Park, 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).
