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
September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's moderately hot 76.6°F (24.8°C) to a pleasant 69.1°F (20.6°C). Brownville experiences a steady low-temperature of 49.8°F (9.9°C) throughout September.Humidity
In September, the average relative humidity is 80%.Rainfall
In Brownville, Wisconsin, in September, it is raining for 12.8 days, with typically 1.93" (49mm) of accumulated precipitation. Throughout the year, there are 128.3 rainfall days, and 25.75" (654mm) of precipitation is accumulated.Snowfall
In Brownville, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 31min.On the first day of September, 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 8.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Take precautions - Protection against sun damage is advised. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Brownville have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Brownville, WI
- Average high temperature in September: 69.1°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (19°F).
- Average low temperature in September: 49.8°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (5.9°F).
Average pressure in September
Brownville, WI
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Brownville, WI
- Average wind speed in September: 7.7mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in September
Brownville, WI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (92%).
The months with the lowest relative humidity are April and May (77%).
Average rainfall in September
Brownville, WI
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in September
Brownville, WI
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is June (18.2 days).
The month with the least rainy days is January (2.2 days).
Average snowfall in September
Brownville, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Brownville, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Brownville, 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: 8h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The months with the least sunshine are January and February (Average sunshine: 2h and 36min).
Average sunshine days in September
Brownville, WI
- Average sunshine days in September: 15 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in September
Brownville, 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, February, November and December (UV index 1).
Average cloud cover in September
Brownville, WI
- Average cloud cover in September: 39
The months with the most cloud cover are January and February (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Brownville, 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).
Brownville, Wisconsin, USA
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