September weather forecast
Forest Junction, WI

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Weather in September

The first month of the autumn, September, is still a pleasant month in Forest Junction, Wisconsin, with temperature in the range of an average low of 52.2°F (11.2°C) and an average high of 69.4°F (20.8°C).

Temperature

Forest Junction in September experiences a gentle temperature dip, with average high-temperatures reducing from a moderately hot 76.6°F (24.8°C) in August to a pleasant 69.4°F (20.8°C). Forest Junction registers a consistent average low-temperature of 52.2°F (11.2°C) during September.

Humidity

The average relative humidity in September is 80%.

Rainfall

In Forest Junction, in September, during 12.5 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. Throughout the year, in Forest Junction, there are 136 rainfall days, and 22.4" (569mm) of precipitation is accumulated.

Snowfall

In Forest Junction, snow does not fall in June through September.

Daylight

In Forest Junction, the average length of the day in September is 12h and 30min.
On the first day of the month, sunrise is at 6:16 am and sunset at 7:28 pm. On the last day of September, in Forest Junction, sunrise is at 6:50 am and sunset at 6:34 pm CDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: An average UV index of 3 in September transforms into this advice:
Act with care - The need to guard against sun damage is communicated. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
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Frequently asked questions

What is the average September temperature in Forest Junction?

An average high-temperature, in September, in Forest Junction, is 69.4°F (20.8°C) and the average low-temperature is 52.2°F (11.2°C).

What is the average humidity in September in Forest Junction?

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

How many days does it rain in September in Forest Junction?

In September, in Forest Junction, the rain falls for 12.5 days. Throughout September, 1.73" (44mm) of precipitation is accumulated.

When it does not snow in Forest Junction?

June through September are months without snowfall in Forest Junction, Wisconsin.

Does it snow in Forest Junction in September?

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

How many hours of daylight does Forest Junction have in September?

In September, the average day length in Forest Junction, Wisconsin, is 12h and 30min.

When is the sunrise / sunset in September in Forest Junction?

In September, on the first day of the month, sunrise is at 6:16 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:34 pm CDT.

How long on average sun shines in September in Forest Junction?

In September, the average sunshine duration is 8.6h.

What is the UV index reading in September in Forest Junction?

The average daily maximum UV index in September in Forest Junction is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Forest Junction, WI

Average temperature in September - Forest Junction, WI
  • Average high temperature in September: 69.4°F

The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in September: 52.2°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 (11.7°F).

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Average pressure in September
Forest Junction, WI

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

The months with the highest atmospheric pressure are 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
Forest Junction, WI

Average wind speed in September - Forest Junction, WI
  • Average wind speed in September: 8mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).

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Average humidity in September
Forest Junction, WI

Average humidity in September - Forest Junction, 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 (76%).

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Average rainfall in September
Forest Junction, WI

Average rainfall in September - Forest Junction, WI
  • Average rainfall in September: 1.73"

The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is February (0.98").

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Average rainfall days in September
Forest Junction, WI

Average rainfall days in September - Forest Junction, WI
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is February (3.9 days).

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Average snowfall in September
Forest Junction, WI

Average snowfall in September - Forest Junction, WI
  • Average snowfall in September: 0"

The month with the highest snowfall is January (4.69").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Forest Junction, WI

Average snowfall days in September - Forest Junction, WI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (14 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
Forest Junction, WI

Average daylight in September / Average sunshine in September - Forest Junction, 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 4min

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 30min).

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Average sunshine days in September
Forest Junction, WI

Average sunshine days in September - Forest Junction, WI
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is July (11.1 days).

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Average UV index in September
Forest Junction, WI

Average UV index in September - Forest Junction, 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, November and December (UV index 1).

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Average cloud cover in September
Forest Junction, WI

Average cloud cover in September - Forest Junction, WI
  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in September
Forest Junction, WI

Average visibility in September - Forest Junction, WI
  • Average visibility in September: 6mi

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

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Forest Junction, Wisconsin, USA

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