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
Wauwatosa's progression into September involves a minor drop in the average high-temperature, slightly receding from a moderately hot 77°F (25°C) in August to a pleasant 70.5°F (21.4°C). In the month of September, the average temperature dips to a moderate 57.4°F (14.1°C) during the night.Humidity
The average relative humidity in September in Wauwatosa is 77%.Rainfall
In Wauwatosa, in September, during 6.4 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. Throughout the year, in Wauwatosa, there are 75.6 rainfall days, and 5.83" (148mm) of precipitation is accumulated.Snowfall
In Wauwatosa, snow does not fall in May through September.Daylight
In Wauwatosa, the average length of the day in September is 12h and 29min.On the first day of September in Wauwatosa, Wisconsin, sunrise is at 6:17 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:34 pm CDT.
Sunshine
The average sunshine in September in Wauwatosa, Wisconsin, is 9.1h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Exercise prevention - Precautions against solar damage are endorsed. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. 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 usual temperature for Wauwatosa in September?
What is the average humidity in September in Wauwatosa?
How many days does it rain in September in Wauwatosa?
When it does not snow in Wauwatosa?
Does it snow in Wauwatosa in September?
How many hours of daylight does Wauwatosa have in September?
When are sunrise and sunset in September in Wauwatosa?
How long on average sun shines in September in Wauwatosa?
How high is the UV index in September in Wauwatosa?
Average temperature in September
Wauwatosa, WI
- Average high temperature in September: 70.5°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in September: 57.4°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in September
Wauwatosa, 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
Wauwatosa, WI
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is January (11.4mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in September
Wauwatosa, WI
- Average humidity in September: 77%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Wauwatosa, WI
- Average rainfall in September: 0.35"
The wettest month (with the highest rainfall) is July (0.75").
The driest months (with the least rainfall) are February and December (0.28").
Average rainfall days in September
Wauwatosa, WI
- Average rainfall days in September: 6.4 days
The month with the highest number of rainy days is June (9.9 days).
The months with the least rainy days are January and February (1.8 days).
Average snowfall in September
Wauwatosa, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Wauwatosa, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Wauwatosa, WI
- Average daylight in September: 12h and 3min
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 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Wauwatosa, WI
- Average sunshine days in September: 21.8 days
The month with the most sunshine days is January (25.4 days).
The month with the least sunshine days is June (17.3 days).
Average UV index in September
Wauwatosa, WI
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Wauwatosa, WI
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Wauwatosa, 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).
Wauwatosa, Wisconsin, USA
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