September weather forecastBurlington, IL
September
Weather in September
September, the first month of the autumn in Burlington, is still a pleasant month, with an average temperature ranging between max 72.5°F (22.5°C) and min 54.1°F (12.3°C).Temperature
The beginning of September brings a slight decrease in the average high-temperature, transitioning from a warm 78.1°F (25.6°C) in August to an agreeable 72.5°F (22.5°C). During the month of September, Burlington anticipates a mean low-temperature of 54.1°F (12.3°C).Humidity
The average relative humidity in September in Burlington is 81%.Rainfall
In September, in Burlington, the rain falls for 8.1 days. Throughout September, 0.63" (16mm) of precipitation is accumulated. Throughout the year, in Burlington, there are 103.9 rainfall days, and 8.5" (216mm) of precipitation is accumulated.Snowfall
In Burlington, Illinois, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 28min.On the first day of September in Burlington, sunrise is at 6:20 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:36 pm CDT.
Sunshine
In Burlington, the average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Burlington, IL
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in September: 54.1°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
Burlington, IL
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Burlington, IL
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
Burlington, IL
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall in September
Burlington, IL
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is November (0.39").
Average rainfall days in September
Burlington, IL
- Average rainfall days in September: 8.1 days
The month with the highest number of rainy days is June (13.8 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in September
Burlington, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Burlington, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Burlington, IL
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Burlington, IL
- Average sunshine days in September: 19.3 days
The month with the most sunshine days is December (22.3 days).
The month with the least sunshine days is June (13.2 days).
Average UV index in September
Burlington, IL
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Burlington, IL
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are August and September (Cloud cover 36).
Average visibility in September
Burlington, IL
- Average visibility in September: 5mi
The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).
