September weather forecastPrentice, WI
September
Weather in September
September, the first month of the autumn in Prentice, is still a comfortable month, with temperature in the range of an average high of 67.1°F (19.5°C) and an average low of 48.4°F (9.1°C).Temperature
With the onset of September, the average high-temperature subtly recedes from August's moderately hot 75.7°F (24.3°C) to a refreshing 67.1°F (19.5°C). During the September nights, an average temperature of 48.4°F (9.1°C) is observed in Prentice, Wisconsin.Humidity
In September, the average relative humidity in Prentice is 80%.Rainfall
In Prentice, in September, during 14.3 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, there are 124.1 rainfall days, and 24.61" (625mm) of precipitation is accumulated.Snowfall
In Prentice, Wisconsin, snow does not fall in June through September.Daylight
In Prentice, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:23 am and sunset at 7:38 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:42 pm CDT.
Sunshine
In September, the average sunshine in Prentice is 7.6h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 3 during September, leads to the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Prentice, WI
- Average high temperature in September: 67.1°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (18.3°F).
- Average low temperature in September: 48.4°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (6.6°F).
Average pressure in September
Prentice, WI
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Prentice, WI
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in September
Prentice, 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 (73%).
Average rainfall in September
Prentice, WI
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in September
Prentice, WI
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is January (1.8 days).
Average snowfall in September
Prentice, WI
- Average snowfall in September: 0"
The month with the highest snowfall is December (8.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Prentice, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Prentice, 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: 7h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 12min).
Average sunshine days in September
Prentice, WI
- Average sunshine days in September: 13.3 days
The month with the most sunshine days is October (15.1 days).
The month with the least sunshine days is April (10.3 days).
Average UV index in September
Prentice, WI
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Prentice, WI
- Average cloud cover in September: 45
The months with the most cloud cover are January and February (Cloud cover 80).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in September
Prentice, WI
- Average visibility in September: 5mi
The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January and February (4mi).
