September weather forecast
Harper Woods, MI

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Weather in September

The first month of the autumn, September, is also an agreeable month in Harper Woods, Michigan, with an average temperature ranging between min 58.3°F (14.6°C) and max 71.4°F (21.9°C).

Temperature

With the onset of September, Harper Woods's climate undergoes a slight change as the average high-temperature moves from a warm 77.9°F (25.5°C) in August to a pleasant 71.4°F (21.9°C). In September, the temperature drops to an average of 58.3°F (14.6°C) at night.

Humidity

In Harper Woods, the average relative humidity in September is 75%.

Rainfall

In Harper Woods, Michigan, in September, it is raining for 9.8 days, with typically 0.43" (11mm) of accumulated precipitation. In Harper Woods, Michigan, during the entire year, the rain falls for 105.5 days and collects up to 7.36" (187mm) of precipitation.

Snowfall

In Harper Woods, snow does not fall in June through October.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of the month, sunrise is at 6:57 am and sunset at 8:05 pm. On the last day of September, in Harper Woods, sunrise is at 7:28 am and sunset at 7:14 pm EDT.

Sunshine

The average sunshine in September in Harper Woods is 8.4h.

UV index

In Harper Woods, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

What are the temperatures in Harper Woods in September?

In Harper Woods, in September, the average high-temperature is 71.4°F (21.9°C), and the average low-temperature is 58.3°F (14.6°C).

What is the average humidity in September in Harper Woods?

In September, the average relative humidity in Harper Woods, Michigan, is 75%.

How many days does it rain in September in Harper Woods?

In Harper Woods, Michigan, during September, the rain falls for 9.8 days and regularly aggregates up to 0.43" (11mm) of precipitation.

When it does not snow in Harper Woods?

In Harper Woods, snow does not fall in June through October.

What is the average length of the day in September in Harper Woods?

In Harper Woods, the average day length in September is 12h and 28min.

When is the sunrise / sunset in September in Harper Woods?

In September, on the first day of the month, sunrise is at 6:57 am and sunset at 8:05 pm. On the last day of the month, in Harper Woods, sunrise is at 7:28 am and sunset at 7:14 pm EDT.

How long on average sun shines in September in Harper Woods?

The average sunshine duration in September in Harper Woods, Michigan, is 8.4h.

How high is the UV index in September in Harper Woods?

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
Harper Woods, MI

Average temperature in September - Harper Woods, MI
  • Average high temperature in September: 71.4°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in September: 58.3°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).

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Average pressure in September
Harper Woods, MI

Average pressure in September - Harper Woods, 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
Harper Woods, MI

Average wind speed in September - Harper Woods, MI
  • Average wind speed in September: 8.1mph

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is July (7mph).

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Average humidity in September
Harper Woods, MI

Average humidity in September - Harper Woods, MI
  • Average humidity in September: 75%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is August (74%).

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Average rainfall in September
Harper Woods, MI

Average rainfall in September - Harper Woods, MI
  • Average rainfall in September: 0.43"

The wettest month (with the highest rainfall) is May (0.91").
The driest month (with the least rainfall) is February (0.35").

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Average rainfall days in September
Harper Woods, MI

Average rainfall days in September - Harper Woods, MI
  • Average rainfall days in September: 9.8 days

The month with the highest number of rainy days is July (12.3 days).
The month with the least rainy days is February (4.4 days).

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Average snowfall in September
Harper Woods, MI

Average snowfall in September - Harper Woods, MI
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.98").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Harper Woods, MI

Average snowfall days in September - Harper Woods, MI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.9 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
Harper Woods, MI

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

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in September
Harper Woods, MI

Average sunshine days in September - Harper Woods, MI
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is December (22.3 days).
The month with the least sunshine days is July (14.3 days).

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Average UV index in September
Harper Woods, MI

Average UV index in September - Harper Woods, MI
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
Harper Woods, MI

Average cloud cover in September - Harper Woods, MI
  • Average cloud cover in September: 31

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in September
Harper Woods, MI

Average visibility in September - Harper Woods, MI
  • 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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Harper Woods, Michigan, USA

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