September weather forecast
Neenah, WI

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Weather in September

September marks the introduction of fall in Neenah. Temperature starts to retreat from its summer highs, and rainfall becomes an occasional occurrence. Daylight hours start reducing, indicating the sun's journey towards the equator. Taking full advantage of the weather, people often indulge in hiking, biking, and other outdoor activities. The city starts donning fall colors in a grand welcome to autumn.

Temperature

The shift from August to September includes a small decrease in the average high-temperature, from a warm 77.4°F (25.2°C) to a pleasant 70.2°F (21.2°C). An average low-temperature of 52°F (11.1°C) is recorded in the month of September in Neenah.

Humidity

In Neenah, the average relative humidity in September is 79%.

Rainfall

In Neenah, Wisconsin, in September, during 12.1 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. Throughout the year, in Neenah, Wisconsin, there are 131.1 rainfall days, and 24.45" (621mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Neenah, the average length of the day in September is 12h and 30min.
On the first day of September, sunrise is at 6:17 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:35 pm CDT.

Sunshine

In Neenah, Wisconsin, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 3 suggests this advice:
Adopt protective measures - Suggestions to resist sunburn are offered. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

What is the average September temperature in Neenah?

In September, in Neenah, the average high-temperature is 70.2°F (21.2°C), and the average low-temperature is 52°F (11.1°C).

What is the average humidity in September in Neenah?

In Neenah, the average relative humidity in September is 79%.

How many days does it rain in September in Neenah?

In Neenah, in September, during 12.1 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

When it does not snow in Neenah?

June through September are months without snowfall in Neenah.

Does it snow in Neenah in September?

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

How many hours of daylight does Neenah have in September?

In September, the average day length in Neenah is 12h and 30min.

When is the sunrise / sunset in September in Neenah?

In September, on the first day of the month, sunrise is at 6:17 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:35 pm CDT.

How many hours of sunshine does Neenah have in September?

In September, the average sunshine duration in Neenah is 8.5h.

What is the UV index reading in September in Neenah?

The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
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
Neenah, WI

Average temperature in September - Neenah, WI
  • Average high temperature in September: 70.2°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (21.9°F).

  • Average low temperature in September: 52°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 (10.8°F).

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Average pressure in September
Neenah, WI

Average pressure in September - Neenah, 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).

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Average wind speed in September
Neenah, WI

Average wind speed in September - Neenah, WI
  • Average wind speed in September: 7.9mph

The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

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Average humidity in September
Neenah, WI

Average humidity in September - Neenah, WI
  • Average humidity in September: 79%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in September
Neenah, WI

Average rainfall in September - Neenah, WI
  • Average rainfall in September: 1.81"

The wettest month (with the highest rainfall) is May (3.54").
The driest month (with the least rainfall) is February (1.06").

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Average rainfall days in September
Neenah, WI

Average rainfall days in September - Neenah, WI
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (3.9 days).

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Average snowfall in September
Neenah, WI

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

The month with the highest snowfall is January (5.79").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Neenah, WI

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

The month with the highest number of snowfall days is January (14.2 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
Neenah, WI

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

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in September: 8h and 3min

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

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Average sunshine days in September
Neenah, WI

Average sunshine days in September - Neenah, WI
  • Average sunshine days in September: 16.4 days

The month with the most sunshine days is September (16.4 days).
The month with the least sunshine days is April (11.8 days).

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Average UV index in September
Neenah, WI

Average UV index in September - Neenah, 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).

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Average cloud cover in September
Neenah, WI

Average cloud cover in September - Neenah, WI
  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in September
Neenah, WI

Average visibility in September - Neenah, 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).

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Neenah, Wisconsin, USA

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