September weather forecast
Three Lakes, WI

Weather in September

September, the first month of the autumn in Three Lakes, is also an enjoyable month, with temperature in the range of an average high of 66.7°F (19.3°C) and an average low of 48°F (8.9°C).

Temperature

In Three Lakes, the average high-temperature in September slightly decreases from a moderately hot 74.5°F (23.6°C) in August to an enjoyable 66.7°F (19.3°C). In Three Lakes, in September, the average low-temperature is 48°F (8.9°C).

Humidity

In September, the average relative humidity is 80%.

Rainfall

In September, the rain falls for 12.1 days. Throughout September, 1.57" (40mm) of precipitation is accumulated. In Three Lakes, during the entire year, the rain falls for 123.5 days and collects up to 23.11" (587mm) of precipitation.

Snowfall

In Three Lakes, snow does not fall in June through September.

Daylight

The average length of the day in September in Three Lakes, Wisconsin, is 12h and 31min.
On the first day of the month, sunrise is at 6:18 am and sunset at 7:35 pm. On the last day of September, in Three Lakes, sunrise is at 6:54 am and sunset at 6:39 pm CDT.

Sunshine

In September, the average sunshine in Three Lakes, Wisconsin, is 7.6h.

UV index

The average daily maximum UV index in September in Three Lakes is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 3 in September interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in September in Three Lakes?

In Three Lakes, Wisconsin, the average relative humidity in September is 80%.

How much does it rain in Three Lakes in September?

In Three Lakes, Wisconsin, in September, it is raining for 12.1 days, with typically 1.57" (40mm) of accumulated precipitation.

When it does not snow in Three Lakes?

In Three Lakes, snow does not fall in June through September.

Does it snow in Three Lakes in September?

In Three Lakes, Wisconsin, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Three Lakes?

In Three Lakes, Wisconsin, the average day length in September is 12h and 31min.

When are sunrise and sunset in September in Three Lakes?

On the first day of September, sunrise is at 6:18 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:39 pm CDT.

How many hours of sunshine does Three Lakes have in September?

In September, the average sunshine duration in Three Lakes is 7.6h.

What is the UV index intensity in September in Three Lakes?

In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Three Lakes, WI

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).

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Average pressure in September
Three Lakes, WI

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).

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Average wind speed in September
Three Lakes, WI

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).

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Average humidity in September
Three Lakes, WI

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%).

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Average rainfall in September
Three Lakes, WI

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").

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Average rainfall days in September
Three Lakes, WI

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).

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Average snowfall in September
Three Lakes, WI

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").

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Average snowfall days in September
Three Lakes, WI

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).

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Average daylight in September /
Average sunshine in September
Three Lakes, WI

Average daylight in September / Average sunshine in September - Three Lakes, WI
  • Average daylight in September: 12h and 31min

The month with the longest days is June (Average daylight: 15h and 40min).
The month with the shortest days is December (Average daylight: 8h and 44min).

  • Average sunshine in September: 7h and 36min

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).

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Average sunshine days in September
Three Lakes, WI

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).

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Average UV index in September
Three Lakes, WI

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).

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Average cloud cover in September
Three Lakes, WI

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).

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Average visibility in September
Three Lakes, WI

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).

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