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 arrival of September in Three Lakes, Wisconsin, corresponds with a minor reduction in the average high-temperature, down from August's warm 74.5°F (23.6°C) to a comfortable 66.7°F (19.3°C). The average low-temperature during September nights is a frosty 48°F (8.9°C).Humidity
The average relative humidity in September is 80%.Rainfall
In Three Lakes, during September, the rain falls for 12.1 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, there are 123.5 rainfall days, and 23.11" (587mm) of precipitation is accumulated.Snowfall
In Three Lakes, 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 the month, sunrise is at 6:18 am and sunset at 7:34 pm. On the last day of September, sunrise is at 6:54 am and sunset at 6:38 pm CDT.
Sunshine
The average sunshine in September in Three Lakes, Wisconsin, is 7.6h.UV index
In Three Lakes, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 3 in September leads to these recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the usual temperature for Three Lakes in September?
What is the average humidity in September in Three Lakes?
How many days does it rain in September in Three Lakes?
When it does not snow in Three Lakes?
Does it snow in Three Lakes in September?
How many hours of daylight does Three Lakes have in September?
When are sunrise and sunset in September in Three Lakes?
How many hours of sunshine does Three Lakes have in September?
What is the UV index reading in September in Three Lakes?
Average temperature in September
Three Lakes, WI
- Average high temperature in September: 66.7°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (18.9°F).
- Average low temperature in September: 48°F
The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in September
Three Lakes, WI
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Three Lakes, WI
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is November (8.6mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in September
Three Lakes, 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
Three Lakes, WI
- Average rainfall in September: 1.57"
The wettest months (with the highest rainfall) are April and May (2.64").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in September
Three Lakes, WI
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in September
Three Lakes, WI
- Average snowfall in September: 0"
The month with the highest snowfall is December (9.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Three Lakes, WI
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (24.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Three Lakes, 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 42min).
The months with the least sunshine are January and February (Average sunshine: 2h and 0min).
Average sunshine days in September
Three Lakes, WI
- Average sunshine days in September: 15 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is February (6.4 days).
Average UV index in September
Three Lakes, 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, March, November and December (UV index 1).
Average cloud cover in September
Three Lakes, WI
- Average cloud cover in September: 46
The months with the most cloud cover are January and February (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in September
Three Lakes, 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 and December (4mi).
Three Lakes, Wisconsin, USA
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