September weather forecast
Glen Arbor, MI

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Weather in September

The first month of the autumn, September, is still a refreshing month in Glen Arbor, Michigan, with temperature in the range of an average high of 66.4°F (19.1°C) and an average low of 55.8°F (13.2°C).

Temperature

September implies a soft temperature shift, with average high-temperatures reducing from August's agreeable 72.1°F (22.3°C) to a comfortable 66.4°F (19.1°C). Glen Arbor reports an average low-temperature of 55.8°F (13.2°C) during the nights of September.

Humidity

In Glen Arbor, the average relative humidity in September is 78%.

Rainfall

In September, the rain falls for 13.4 days. Throughout September, 2.09" (53mm) of precipitation is accumulated. Throughout the year, in Glen Arbor, there are 135.6 rainfall days, and 24.25" (616mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Glen Arbor, the average length of the day in September is 12h and 31min.
On the first day of September, sunrise is at 7:07 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 7:25 pm EDT.

Sunshine

In Glen Arbor, the average sunshine in September is 8.1h.

UV index

The average daily maximum UV index in September in Glen Arbor is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 3 suggests these recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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Frequently asked questions

What is the usual temperature for Glen Arbor in September?

The high-temperature, in September, in Glen Arbor, records 66.4°F (19.1°C), while the low-temperature is 55.8°F (13.2°C).

What is the average humidity in September in Glen Arbor?

In September, the average relative humidity is 78%.

How many days does it rain in September in Glen Arbor?

In Glen Arbor, Michigan, during September, the rain falls for 13.4 days and regularly aggregates up to 2.09" (53mm) of precipitation.

When it does not snow in Glen Arbor?

In Glen Arbor, Michigan, snow does not fall in June through September.

Does it snow in Glen Arbor in September?

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

How many hours of daylight does Glen Arbor have in September?

In Glen Arbor, Michigan, the average day length in September is 12h and 31min.

When is the sunrise / sunset in September in Glen Arbor?

On the first day of September in Glen Arbor, Michigan, sunrise is at 7:07 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 7:25 pm EDT.

How many hours of sunshine does Glen Arbor have in September?

In September, the average sunshine duration in Glen Arbor is 8.1h.

What is the UV index intensity in September in Glen Arbor?

In September, the average daily maximum UV index in Glen Arbor, Michigan, is 3. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Glen Arbor, MI

Average temperature in September - Glen Arbor, MI
  • Average high temperature in September: 66.4°F

The warmest month (with the highest average high temperature) is August (72.1°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in September: 55.8°F

The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is February (19.6°F).

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Average pressure in September
Glen Arbor, MI

Average pressure in September - Glen Arbor, MI
  • 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 (29.92"Hg).

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Average wind speed in September
Glen Arbor, MI

Average wind speed in September - Glen Arbor, MI
  • Average wind speed in September: 10.3mph

The windiest months (with the highest average wind speed) are January and December (13.5mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).

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Average humidity in September
Glen Arbor, MI

Average humidity in September - Glen Arbor, MI
  • Average humidity in September: 78%

The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (77%).

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Average rainfall in September
Glen Arbor, MI

Average rainfall in September - Glen Arbor, MI
  • Average rainfall in September: 2.09"

The wettest month (with the highest rainfall) is October (2.87").
The driest months (with the least rainfall) are February and March (1.54").

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Average rainfall days in September
Glen Arbor, MI

Average rainfall days in September - Glen Arbor, MI
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is October (17 days).
The month with the least rainy days is February (4 days).

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Average snowfall in September
Glen Arbor, MI

Average snowfall in September - Glen Arbor, MI
  • Average snowfall in September: 0"

The month with the highest snowfall is January (5.98").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Glen Arbor, MI

Average snowfall days in September - Glen Arbor, MI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (19.1 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
Glen Arbor, MI

Average daylight in September / Average sunshine in September - Glen Arbor, MI
  • 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 1h and 48min).

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Average sunshine days in September
Glen Arbor, MI

Average sunshine days in September - Glen Arbor, MI
  • Average sunshine days in September: 14.3 days

The month with the most sunshine days is May (14.5 days).
The month with the least sunshine days is January (5.6 days).

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Average UV index in September
Glen Arbor, MI

Average UV index in September - Glen Arbor, MI
  • 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
Glen Arbor, MI

Average cloud cover in September - Glen Arbor, MI
  • Average cloud cover in September: 32

The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in September
Glen Arbor, MI

Average visibility in September - Glen Arbor, MI
  • Average visibility in September: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

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Glen Arbor, Michigan, USA

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