September weather forecast
Amherst Junction, WI

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Weather in September

The first month of the autumn, September, is still a pleasant month in Amherst Junction, Wisconsin, with an average temperature ranging between max 68.9°F (20.5°C) and min 50.9°F (10.5°C).

Temperature

As August makes way for September, Amherst Junction's average high-temperature eases from a warm 76.1°F (24.5°C) to an agreeable 68.9°F (20.5°C). In September, Amherst Junction experiences a temperature dip to an average of 50.9°F (10.5°C) at night.

Humidity

The average relative humidity in September in Amherst Junction, Wisconsin, is 80%.

Rainfall

In Amherst Junction, Wisconsin, during September, the rain falls for 12.3 days and regularly aggregates up to 1.77" (45mm) of precipitation. Throughout the year, in Amherst Junction, there are 123.2 rainfall days, and 23.54" (598mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 30min.
On the first day of the month, sunrise is at 6:20 am and sunset at 7:33 pm. On the last day of September, in Amherst Junction, sunrise is at 6:54 am and sunset at 6:39 pm CDT.

Sunshine

In September, the average sunshine in Amherst Junction is 8.3h.

UV index

The average daily maximum UV index in September in Amherst Junction is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 3 during September morphs into the following directions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

What is the usual temperature for Amherst Junction in September?

An average high-temperature, in September, in Amherst Junction, is 68.9°F (20.5°C) and the average low-temperature is 50.9°F (10.5°C).

What is the average humidity in September in Amherst Junction?

In September, the average relative humidity is 80%.

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

In Amherst Junction, in September, during 12.3 rainfall days, 1.77" (45mm) of precipitation is typically accumulated.

When it does not snow in Amherst Junction?

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

Does it snow in Amherst Junction in September?

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

What is the average length of the day in September in Amherst Junction?

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

What time are sunrise and sunset in September in Amherst Junction?

On the first day of September in Amherst Junction, Wisconsin, sunrise is at 6:20 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:39 pm CDT.

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

In September, the average sunshine duration is 8.3h.

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

In Amherst Junction, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Amherst Junction, WI

Average temperature in September - Amherst Junction, WI
  • Average high temperature in September: 68.9°F

The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (20.5°F).

  • Average low temperature in September: 50.9°F

The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (9°F).

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Average pressure in September
Amherst Junction, WI

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

The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in September
Amherst Junction, WI

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

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (7.2mph).

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Average humidity in September
Amherst Junction, WI

Average humidity in September - Amherst Junction, WI
  • Average humidity in September: 80%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in September
Amherst Junction, WI

Average rainfall in September - Amherst Junction, WI
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is February (0.91").

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Average rainfall days in September
Amherst Junction, WI

Average rainfall days in September - Amherst Junction, WI
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (2.8 days).

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Average snowfall in September
Amherst Junction, WI

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

The month with the highest snowfall is December (5.2").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Amherst Junction, WI

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

The month with the highest number of snowfall days is January (14.1 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
Amherst Junction, WI

Average daylight in September / Average sunshine in September - Amherst 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 2min

The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

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Average sunshine days in September
Amherst Junction, WI

Average sunshine days in September - Amherst Junction, WI
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is November (17 days).
The months with the least sunshine days are April, May and June (12.7 days).

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Average UV index in September
Amherst Junction, WI

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

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Average cloud cover in September
Amherst Junction, WI

Average cloud cover in September - Amherst Junction, WI
  • Average cloud cover in September: 38

The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 36).

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Average visibility in September
Amherst Junction, WI

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

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

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Amherst Junction, Wisconsin, USA

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