September Weather forecast - Autumn forecast

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

The hard and rocky surface of the Witches Gulch tourist attraction spot hidden within the Wisconsin Dells region

Weather in September

The first month of the autumn, September, is still a pleasant month in Wisconsin Dells, Wisconsin, with an average temperature varying between 51.1°F (10.6°C) and 70.9°F (21.6°C).

Temperature

In Wisconsin Dells, the average high-temperature in September slightly decreases from a moderately hot 77.5°F (25.3°C) in August to an agreeable 70.9°F (21.6°C). The average low-temperature, in September, is 51.1°F (10.6°C).

Humidity

The average relative humidity in September is 80%.

Rainfall

In Wisconsin Dells, it is raining for 7.2 days, with typically 0.67" (17mm) of accumulated precipitation. Throughout the year, in Wisconsin Dells, there are 94.1 rainfall days, and 8.46" (215mm) of precipitation is accumulated.

Snowfall

In Wisconsin Dells, Wisconsin, snow does not fall in May through September.

Daylight

In September, the average length of the day is 12h and 29min.
On the first day of September, sunrise is at 6:22 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:42 pm CDT.

Sunshine

In Wisconsin Dells, the average sunshine in September is 8.8h.

UV index

In Wisconsin Dells, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 3 translate into the following recommendations:
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.

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FAQ

What is the temperature in September in Wisconsin Dells?

The average high-temperature, in September, in Wisconsin Dells, is 70.9°F (21.6°C), while the average low-temperature is 51.1°F (10.6°C).

What is the average humidity in September in Wisconsin Dells?

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

How much does it rain in Wisconsin Dells in September?

In Wisconsin Dells, Wisconsin, in September, it is raining for 7.2 days, with typically 0.67" (17mm) of accumulated precipitation.

When it does not snow in Wisconsin Dells?

In Wisconsin Dells, snow does not fall in May through September.

Does it snow in Wisconsin Dells in September?

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

How many hours of daylight does Wisconsin Dells have in September?

In September, the average day length is 12h and 29min.

What time are sunrise and sunset in September in Wisconsin Dells?

In September, on the first day of the month, sunrise is at 6:22 am and sunset at 7:35 pm. On the last day of the month, in Wisconsin Dells, Wisconsin, sunrise is at 6:55 am and sunset at 6:42 pm CDT.

How long on average sun shines in September in Wisconsin Dells?

In Wisconsin Dells, the average sunshine duration in September is 8.8h.

What is the UV index reading in September in Wisconsin Dells?

In Wisconsin Dells, Wisconsin, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

77.5°F 25.3°C

70.9°F 21.6°C

56.3°F 13.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.1mph 11.4km/h

7.8mph 12.6km/h

9.5mph 15.3km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

19.1

19.8

20.2

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Wisconsin Dells, WI

Average high temperature in September: 70.9°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (22.5°F).

Average low temperature in September: 51.1°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (10°F).

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Average pressure in September
Wisconsin Dells, WI

Average pressure in September: 30.02"Hg

The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in September
Wisconsin Dells, WI

Average wind speed in September: 7.5mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in September
Wisconsin Dells, WI

Average humidity in September: 80%

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in September
Wisconsin Dells, WI

Average rainfall in September: 0.67"

The wettest month (with the highest rainfall) is June (1.18").
The driest month (with the least rainfall) is January (0.31").

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Average rainfall days in September
Wisconsin Dells, WI

Average rainfall days in September: 7.2 days

The month with the highest number of rainy days is June (13.3 days).
The month with the least rainy days is February (2.3 days).

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Average snowfall in September
Wisconsin Dells, WI

Average snowfall in September: 0"

The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Wisconsin Dells, WI

Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Wisconsin Dells, WI

Average daylight in September: 12h and 29min

The month with the longest days is June (Average daylight: 15h and 23min).
The month with the shortest days is December (Average daylight: 9h and 0min).

Average sunshine in September: 8h and 48min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in September
Wisconsin Dells, WI

Average sunshine days in September: 19.8 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is June (14.1 days).

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Average UV index in September
Wisconsin Dells, WI

Average UV index in September: 3

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in September
Wisconsin Dells, WI

Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in September
Wisconsin Dells, 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).

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September weather forecast
Wisconsin Dells, WI

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