September weather forecastSheldon, WI
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Sheldon, Wisconsin, with temperature in the range of an average low of 49.5°F (9.7°C) and an average high of 68.9°F (20.5°C).Temperature
September's onset brings a negligible change in high-temperatures, falling from a moderately hot 76.6°F (24.8°C) in August to a pleasant 68.9°F (20.5°C). In September, Sheldon experiences a temperature dip to an average of 49.5°F (9.7°C) at night.Humidity
In September, the average relative humidity in Sheldon, Wisconsin, is 80%.Rainfall
In Sheldon, in September, during 13.2 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. Throughout the year, in Sheldon, Wisconsin, there are 137.4 rainfall days, and 26.26" (667mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Sheldon.Daylight
The average length of the day in September is 12h and 31min.On the first day of September in Sheldon, sunrise is at 6:26 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:45 pm CDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
The average daily maximum UV index in September in Sheldon is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: An average UV index of 4 in September transforms into this advice:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sheldon, WI
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (18.7°F).
- Average low temperature in September: 49.5°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (6.1°F).
Average pressure in September
Sheldon, WI
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Sheldon, WI
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in September
Sheldon, WI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Sheldon, WI
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is June (4.06").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in September
Sheldon, WI
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (3.7 days).
Average snowfall in September
Sheldon, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (7.44").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Sheldon, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sheldon, WI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 2h and 48min).
Average sunshine days in September
Sheldon, WI
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is October (15.6 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in September
Sheldon, WI
- Average UV index in September: 4
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
Sheldon, WI
- Average cloud cover in September: 38
The months with the most cloud cover are January and February (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in September
Sheldon, WI
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
