September weather forecastAniwa, WI
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Aniwa, Wisconsin, with temperature in the range of an average high of 68.2°F (20.1°C) and an average low of 49.6°F (9.8°C).Temperature
Aniwa experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a warm 75.6°F (24.2°C) in August to a pleasant 68.2°F (20.1°C). September brings Aniwa a consistent average low-temperature of 49.6°F (9.8°C).Humidity
In Aniwa, the average relative humidity in September is 80%.Rainfall
In Aniwa, Wisconsin, during September, the rain falls for 9.2 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, there are 103 rainfall days, and 11.02" (280mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Aniwa.Daylight
In September, the average length of the day is 12h and 31min.On the first day of September, sunrise is at 6:19 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:38 pm CDT.
Sunshine
In Aniwa, the average sunshine in September is 8.1h.UV index
In September, the average daily maximum UV index in Aniwa is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 3 during September, leads to the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Minimize direct exposure to the Sun during midday when its radiation is at its peak. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Aniwa, WI
- Average high temperature in September: 68.2°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (19.8°F).
- Average low temperature in September: 49.6°F
The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).
Average pressure in September
Aniwa, WI
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Aniwa, WI
- Average wind speed in September: 7.7mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in September
Aniwa, WI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Aniwa, WI
- Average rainfall in September: 0.75"
The wettest months (with the highest rainfall) are May and June (1.46").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in September
Aniwa, WI
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in September
Aniwa, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Aniwa, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Aniwa, 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 6min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Aniwa, WI
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is April (13.4 days).
Average UV index in September
Aniwa, WI
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Aniwa, WI
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in September
Aniwa, 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, February, March, July, August, September and December (5mi).





