Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The move into September indicates a slight reduction in the average high-temperature, down from August's moderately hot 75.7°F (24.3°C) to an enjoyable 67.1°F (19.5°C). During September, the temperature is averaged to a low of 48.4°F (9.1°C) at night.Humidity
The average relative humidity in September in Brantwood is 80%.Rainfall
In Brantwood, during September, the rain falls for 14.3 days and regularly aggregates up to 1.61" (41mm) of precipitation. Throughout the year, there are 124.1 rainfall days, and 24.61" (625mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Brantwood.Daylight
The average length of the day in September is 12h and 31min.On the first day of September in Brantwood, sunrise is at 6:22 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:41 pm CDT.
Sunshine
In September, the average sunshine in Brantwood is 7.6h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 3 in September interprets into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
What is the temperature in September in Brantwood?
What is the average humidity in September in Brantwood?
How many days does it rain in September in Brantwood?
When it does not snow in Brantwood?
Does it snow in Brantwood in September?
How many hours of daylight does Brantwood have in September?
When are sunrise and sunset in September in Brantwood?
How long on average sun shines in September in Brantwood?
How high is the UV index in September in Brantwood?
Average temperature in September
Brantwood, 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
Brantwood, 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
Brantwood, 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
Brantwood, 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
Brantwood, 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
Brantwood, 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
Brantwood, 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
Brantwood, 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
Brantwood, WI
- Average daylight in September: 12h and 3min
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 4min
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
Brantwood, 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
Brantwood, 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
Brantwood, 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
Brantwood, 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).
Brantwood, Wisconsin, USA
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