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 onset of September brings a small shift in high-temperatures, falling from a warm 75°F (23.9°C) in August to a refreshing 66.9°F (19.4°C). Powell records an average low of 48.4°F (9.1°C) throughout the nights in September.Humidity
The average relative humidity in September is 80%.Rainfall
In Powell, in September, during 13.9 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. In Powell, during the entire year, the rain falls for 128 days and collects up to 23.5" (597mm) of precipitation.Snowfall
June through September are months without snowfall in Powell.Daylight
In September, the average length of the day is 12h and 32min.On the first day of September, sunrise is at 6:21 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:41 pm CDT.
Sunshine
In September, the average sunshine is 7.6h.UV index
In Powell, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 3 in September converts into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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 many days does it rain in September?
When it does not snow?
Does it snow in Powell in September?
How many hours of daylight does Powell have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Powell, WI
- Average high temperature in September: 66.9°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (18.5°F).
- Average low temperature in September: 48.4°F
The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (7.2°F).
Average pressure in September
Powell, WI
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Powell, WI
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is November (8.7mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in September
Powell, 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 (71%).
Average rainfall in September
Powell, WI
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in September
Powell, WI
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is May (16.2 days).
The months with the least rainy days are January and February (2.3 days).
Average snowfall in September
Powell, WI
- Average snowfall in September: 0"
The month with the highest snowfall is December (9.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Powell, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (24.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Powell, WI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- 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: 1h and 54min).
Average sunshine days in September
Powell, WI
- Average sunshine days in September: 13.7 days
The month with the most sunshine days is September (13.7 days).
The month with the least sunshine days is January (6.5 days).
Average UV index in September
Powell, WI
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Powell, WI
- Average cloud cover in September: 46
The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in September
Powell, 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, February, March and December (4mi).
Powell, Wisconsin, USA
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