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
As Lake Mills enters September, the average high-temperature subtly lowers from the a warm 77.4°F (25.2°C) of August to an agreeable 71.1°F (21.7°C). The temperature dips to an average of 51.8°F (11°C) during September nights.Humidity
In Lake Mills, the average relative humidity in September is 81%.Rainfall
In Lake Mills, during September, the rain falls for 12.7 days and regularly aggregates up to 2.01" (51mm) of precipitation. Throughout the year, in Lake Mills, there are 132.3 rainfall days, and 21.38" (543mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Lake Mills, the average length of the day in September is 12h and 29min.On the first day of September in Lake Mills, sunrise is at 6:20 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:38 pm CDT.
Sunshine
The average sunshine in September in Lake Mills is 8.5h.UV index
In Lake Mills, Wisconsin, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In September, a regular UV index of 3 translates into these guidelines:
Take precautions - Protection against skin and eye damage is obliged. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Lake Mills in September?
What is the average humidity in September in Lake Mills?
How many days does it rain in September in Lake Mills?
When it does not snow in Lake Mills?
Does it snow in Lake Mills in September?
How many hours of daylight does Lake Mills have in September?
When is the sunrise / sunset in September in Lake Mills?
How long on average sun shines in September in Lake Mills?
What is the UV index reading in September in Lake Mills?
Average temperature in September
Lake Mills, WI
- Average high temperature in September: 71.1°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (23.7°F).
- Average low temperature in September: 51.8°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (11.1°F).
Average pressure in September
Lake Mills, WI
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Lake Mills, WI
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in September
Lake Mills, WI
- Average humidity in September: 81%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Lake Mills, WI
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is June (2.87").
The driest month (with the least rainfall) is December (0.87").
Average rainfall days in September
Lake Mills, WI
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in September
Lake Mills, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Lake Mills, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lake Mills, 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: 8h and 3min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Lake Mills, WI
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in September
Lake Mills, WI
- Average UV index in September: 3
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, November and December (UV index 1).
Average cloud cover in September
Lake Mills, WI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in September
Lake Mills, WI
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Lake Mills, Wisconsin, USA
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