September weather forecast
Walled Lake, MI

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Weather in September

The first month of the autumn, September, is also an agreeable month in Walled Lake, Michigan, with an average temperature fluctuating between 72°F (22.2°C) and 55°F (12.8°C).

Temperature

During the shift to September, Walled Lake records a mild decrease in average high-temperature, moving from a warm 78.4°F (25.8°C) in August to a pleasant 72°F (22.2°C). Throughout September, an average low-temperature of 55°F (12.8°C) is experienced in Walled Lake.

Humidity

In September, the average relative humidity in Walled Lake is 77%.

Rainfall

In Walled Lake, in September, during 13.5 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Walled Lake, Michigan, during the entire year, the rain falls for 155.3 days and collects up to 27.48" (698mm) of precipitation.

Snowfall

In Walled Lake, snow does not fall in June through September.

Daylight

In September, the average length of the day is 12h and 29min.
On the first day of the month, sunrise is at 6:59 am and sunset at 8:07 pm. On the last day of September, in Walled Lake, sunrise is at 7:30 am and sunset at 7:16 pm EDT.

Sunshine

In September, the average sunshine in Walled Lake is 7.7h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A typical high UV index of 4 in September suggests the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

What are September temperatures in Walled Lake?

The high-temperature in Walled Lake, Michigan, during September is 72°F (22.2°C) and the low-temperature is 55°F (12.8°C).

What is the average humidity in September in Walled Lake?

In September, the average relative humidity is 77%.

How many days does it rain in September in Walled Lake?

In September, in Walled Lake, the rain falls for 13.5 days. Throughout September, 1.93" (49mm) of precipitation is accumulated.

When it does not snow in Walled Lake?

June through September are months without snowfall in Walled Lake.

Does it snow in Walled Lake in September?

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

What is the average length of the day in September in Walled Lake?

In September, the average day length in Walled Lake, Michigan, is 12h and 29min.

What time are sunrise and sunset in September in Walled Lake?

On the first day of September in Walled Lake, Michigan, sunrise is at 6:59 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:16 pm EDT.

How long on average sun shines in September in Walled Lake?

In Walled Lake, Michigan, the average sunshine duration in September is 7.7h.

What is the UV index intensity in September in Walled Lake?

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Walled Lake, MI

Average temperature in September - Walled Lake, MI
  • Average high temperature in September: 72°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in September: 55°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).

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Average pressure in September
Walled Lake, MI

Average pressure in September - Walled Lake, MI
  • Average pressure in September: 30.04"Hg

The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Walled Lake, MI

Average wind speed in September - Walled Lake, MI
  • Average wind speed in September: 7.2mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in September
Walled Lake, MI

Average humidity in September - Walled Lake, MI
  • Average humidity in September: 77%

The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in September
Walled Lake, MI

Average rainfall in September - Walled Lake, MI
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is December (1.61").

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Average rainfall days in September
Walled Lake, MI

Average rainfall days in September - Walled Lake, MI
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is February (5.9 days).

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Average snowfall in September
Walled Lake, MI

Average snowfall in September - Walled Lake, MI
  • Average snowfall in September: 0"

The month with the highest snowfall is February (6.3").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Walled Lake, MI

Average snowfall days in September - Walled Lake, MI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (17.1 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
Walled Lake, MI

Average daylight in September / Average sunshine in September - Walled Lake, MI
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 7h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).

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Average sunshine days in September
Walled Lake, MI

Average sunshine days in September - Walled Lake, MI
  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is September (14.8 days).
The month with the least sunshine days is February (8.1 days).

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Average UV index in September
Walled Lake, MI

Average UV index in September - Walled Lake, MI
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
Walled Lake, MI

Average cloud cover in September - Walled Lake, MI
  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in September
Walled Lake, MI

Average visibility in September - Walled Lake, 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 months with the lowest visibility are January, February and December (5mi).

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Walled Lake, Michigan, USA

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