September weather forecast
Winnebago, WI

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Weather in September

The first month of the autumn, September, is also an agreeable month in Winnebago, Wisconsin, with an average temperature ranging between min 52.5°F (11.4°C) and max 69.1°F (20.6°C).

Temperature

In Winnebago, entering September brings a subtle temperature decrement, reducing from August's moderately hot 75.9°F (24.4°C) to an agreeable 69.1°F (20.6°C). Winnebago experiences an average nighttime temperature of 52.5°F (11.4°C) in the month of September.

Humidity

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

Rainfall

In Winnebago, in September, during 12 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Winnebago, Wisconsin, during the entire year, the rain falls for 133.9 days and collects up to 26.73" (679mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Winnebago, the average length of the day in September is 12h and 30min.
On the first day of September in Winnebago, Wisconsin, sunrise is at 6:18 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:36 pm CDT.

Sunshine

The average sunshine in September is 8.4h.

UV index

In Winnebago, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high daily UV index of 3 during September translates into the following directions:
Take necessary precautions - Protection from skin and eye injury is mandatory. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

The high-temperature, in September, in Winnebago, is 69.1°F (20.6°C), while the low-temperature averages to 52.5°F (11.4°C).

What is the average humidity in September?

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

How much does it rain in September?

In Winnebago, in September, during 12 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Winnebago have in September?

The average day length in September is 12h and 30min.

What time are sunrise and sunset in September in Winnebago?

On the first day of September, sunrise is at 6:18 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:36 pm CDT.

How many hours of sunshine does Winnebago have in September?

The average sunshine duration in September is 8.4h.

What is the UV index intensity in September?

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

Average temperature in September
Winnebago, WI

Average temperature in September - Winnebago, WI
  • Average high temperature in September: 69.1°F

The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in September: 52.5°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).

Average pressure in September
Winnebago, WI

Average pressure in September - Winnebago, WI
  • Average pressure in September: 30.02"Hg

The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in September
Winnebago, WI

Average wind speed in September - Winnebago, WI
  • Average wind speed in September: 8.3mph

The windiest month (with the highest average wind speed) is November (10.6mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).

Average humidity in September
Winnebago, WI

Average humidity in September - Winnebago, WI
  • Average humidity in September: 80%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is April (77%).

Average rainfall in September
Winnebago, WI

Average rainfall in September - Winnebago, WI
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is February (1.22").

Average rainfall days in September
Winnebago, WI

Average rainfall days in September - Winnebago, WI
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is February (4 days).

Average snowfall in September
Winnebago, WI

Average snowfall in September - Winnebago, WI
  • Average snowfall in September: 0"

The month with the highest snowfall is January (5.08").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Winnebago, WI

Average snowfall days in September - Winnebago, WI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (15 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Winnebago, WI

Average daylight in September / Average sunshine in September - Winnebago, WI
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 24min).

Average sunshine days in September
Winnebago, WI

Average sunshine days in September - Winnebago, WI
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is April (11.3 days).

Average UV index in September
Winnebago, WI

Average UV index in September - Winnebago, 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, February, November and December (UV index 1).

Average cloud cover in September
Winnebago, WI

Average cloud cover in September - Winnebago, WI
  • Average cloud cover in September: 36

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in September
Winnebago, WI

Average visibility in September - Winnebago, WI
  • Average visibility in September: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).

Winnebago, Wisconsin, USA

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