September weather forecastFranksville, WI
September
Weather in September
September, the first month of the autumn in Franksville, is also an agreeable month, with temperature in the range of an average low of 59.5°F (15.3°C) and an average high of 69.1°F (20.6°C).Temperature
As Franksville enters September, the average high-temperature subtly lowers from the a warm 75°F (23.9°C) of August to an agreeable 69.1°F (20.6°C). During September, Franksville observes a consistent average nighttime temperature of 59.5°F (15.3°C).Humidity
In September, the average relative humidity is 77%.Rainfall
In September, the rain falls for 10.6 days. Throughout September, 0.91" (23mm) of precipitation is accumulated. In Franksville, Wisconsin, during the entire year, the rain falls for 119.1 days and collects up to 10.39" (264mm) of precipitation.Snowfall
June through September are months without snowfall in Franksville.Daylight
In September, the average length of the day in Franksville, Wisconsin, is 12h and 29min.On the first day of the month, sunrise is at 6:17 am and sunset at 7:25 pm. On the last day of September, in Franksville, sunrise is at 6:48 am and sunset at 6:34 pm CDT.
Sunshine
The average sunshine in September is 9.3h.UV index
In Franksville, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Franksville, WI
- Average high temperature in September: 69.1°F
The warmest month (with the highest average high temperature) is July (75.4°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in September: 59.5°F
The month with the highest average low temperature is August (66°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in September
Franksville, WI
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Franksville, WI
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is January (13mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in September
Franksville, WI
- Average humidity in September: 77%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in September
Franksville, WI
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is December (0.43").
Average rainfall days in September
Franksville, WI
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is May (13.7 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Franksville, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Franksville, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Franksville, 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 6min).
- Average sunshine in September: 9h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Franksville, WI
- Average sunshine days in September: 16 days
The month with the most sunshine days is December (18.7 days).
The month with the least sunshine days is July (13.5 days).
Average UV index in September
Franksville, WI
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Franksville, WI
- Average cloud cover in September: 28
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
Franksville, WI
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
