September weather forecastLebanon, WI
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Lebanon, Wisconsin, with an average temperature ranging between min 52°F (11.1°C) and max 70.9°F (21.6°C).Temperature
September reveals a small adjustment in temperature, transitioning from an average high of a warm 77.5°F (25.3°C) in August to a pleasant 70.9°F (21.6°C). During September, the nighttime temperature averages to a cool 52°F (11.1°C).Humidity
In Lebanon, the average relative humidity in September is 81%.Rainfall
In Lebanon, in September, during 9.8 rainfall days, 0.91" (23mm) of precipitation is typically accumulated. Throughout the year, there are 113.9 rainfall days, and 11.57" (294mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Lebanon is 12h and 29min.On the first day of September, sunrise is at 6:19 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:36 pm CDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In Lebanon, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the average maximum UV index of 3 translates into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lebanon, WI
- Average high temperature in September: 70.9°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (23.7°F).
- Average low temperature in September: 52°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in September
Lebanon, WI
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Lebanon, WI
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
Lebanon, WI
- Average humidity in September: 81%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Lebanon, WI
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is July (1.54").
The driest months (with the least rainfall) are February and December (0.47").
Average rainfall days in September
Lebanon, WI
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (3 days).
Average snowfall in September
Lebanon, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Lebanon, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lebanon, WI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Lebanon, WI
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in September
Lebanon, WI
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Lebanon, WI
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July, August and September (Cloud cover 34).
Average visibility in September
Lebanon, WI
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
