September weather forecast
Marinette, WI

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Weather in September

September, the first month of the autumn in Marinette, is also an enjoyable month, with an average temperature fluctuating between 54.5°F (12.5°C) and 66.2°F (19°C).

Temperature

September reveals a small adjustment in temperature, transitioning from an average high of a pleasant 73.2°F (22.9°C) in August to a comfortable 66.2°F (19°C). Throughout the month of September, Marinette observes an average nighttime temperature of 54.5°F (12.5°C).

Humidity

The average relative humidity in September is 79%.

Rainfall

In Marinette, in September, during 10.2 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. Throughout the year, in Marinette, there are 112.6 rainfall days, and 16.14" (410mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Marinette.

Daylight

In Marinette, Wisconsin, the average length of the day in September is 12h and 31min.
On the first day of September in Marinette, sunrise is at 6:13 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:32 pm CDT.

Sunshine

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

UV index

In Marinette, Wisconsin, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. To guard against the harmful effects of the Sun, minimize exposure during midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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Frequently asked questions

What are September temperatures in Marinette?

The high-temperature in Marinette, Wisconsin, during September is 66.2°F (19°C) and the low-temperature is 54.5°F (12.5°C).

What is the average humidity in September in Marinette?

The average relative humidity in September is 79%.

How many days does it rain in September in Marinette?

In Marinette, in September, it is raining for 10.2 days, with typically 1.18" (30mm) of accumulated precipitation.

When it does not snow in Marinette?

June through September are months without snowfall in Marinette.

Does it snow in Marinette in September?

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

What is the average length of the day in September in Marinette?

In Marinette, the average day length in September is 12h and 31min.

What time are sunrise and sunset in September in Marinette?

In September, on the first day of the month, sunrise is at 6:13 am and sunset at 7:27 pm. On the last day of the month, in Marinette, sunrise is at 6:48 am and sunset at 6:32 pm CDT.

How many hours of sunshine does Marinette have in September?

The average sunshine duration in September is 8.8h.

What is the UV index intensity in September in Marinette?

In Marinette, Wisconsin, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health risk 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
Marinette, WI

Average temperature in September - Marinette, WI
  • Average high temperature in September: 66.2°F

The warmest month (with the highest average high temperature) is August (73.2°F).
The month with the lowest average high temperature is January (23.5°F).

  • Average low temperature in September: 54.5°F

The month with the highest average low temperature is August (60.4°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).

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Average pressure in September
Marinette, WI

Average pressure in September - Marinette, WI
  • Average pressure in September: 30.02"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
Marinette, WI

Average wind speed in September - Marinette, WI
  • Average wind speed in September: 9.3mph

The windiest months (with the highest average wind speed) are November and December (11.6mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

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Average humidity in September
Marinette, WI

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

The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is November (76%).

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Average rainfall in September
Marinette, WI

Average rainfall in September - Marinette, WI
  • Average rainfall in September: 1.18"

The wettest month (with the highest rainfall) is June (1.97").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days in September
Marinette, WI

Average rainfall days in September - Marinette, WI
  • Average rainfall days in September: 10.2 days

The month with the highest number of rainy days is July (14.7 days).
The month with the least rainy days is February (2.6 days).

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Average snowfall in September
Marinette, WI

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

The month with the highest snowfall is February (2.87").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Marinette, WI

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

The month with the highest number of snowfall days is February (9.8 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
Marinette, WI

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

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in September: 8h and 5min

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

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Average sunshine days in September
Marinette, WI

Average sunshine days in September - Marinette, WI
  • Average sunshine days in September: 17.6 days

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is July (13.7 days).

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Average UV index in September
Marinette, WI

Average UV index in September - Marinette, WI
  • Average UV index in September: 4

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, March and December (UV index 1).

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Average cloud cover in September
Marinette, WI

Average cloud cover in September - Marinette, WI
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in September
Marinette, WI

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

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

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Marinette, Wisconsin, USA

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