September weather forecast
Spring Arbor, MI

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Weather in September

The first month of the autumn, September, is also an agreeable month in Spring Arbor, Michigan, with an average temperature fluctuating between 53.4°F (11.9°C) and 71.6°F (22°C).

Temperature

September marks a gentle change in average high-temperature, declining from August's warm 77.4°F (25.2°C) to a pleasant 71.6°F (22°C). In September, Spring Arbor experiences a temperature dip to an average of 53.4°F (11.9°C) at night.

Humidity

The average relative humidity in September in Spring Arbor is 80%.

Rainfall

In Spring Arbor, in September, during 13.8 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. In Spring Arbor, during the entire year, the rain falls for 155.4 days and collects up to 25.59" (650mm) of precipitation.

Snowfall

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

Daylight

In Spring Arbor, the average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 7:04 am and sunset at 8:11 pm. On the last day of September, sunrise is at 7:34 am and sunset at 7:20 pm EDT.

Sunshine

In September, the average sunshine is 7.9h.

UV index

In Spring Arbor, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Frequently asked questions

What is the temperature in September in Spring Arbor?

The average high-temperature, in September, in Spring Arbor, is 71.6°F (22°C), while the average low-temperature is 53.4°F (11.9°C).

What is the average humidity in September in Spring Arbor?

The average relative humidity in September in Spring Arbor, Michigan, is 80%.

How much does it rain in Spring Arbor in September?

In September, in Spring Arbor, the rain falls for 13.8 days. Throughout September, 1.69" (43mm) of precipitation is accumulated.

When it does not snow in Spring Arbor?

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

Does it snow in Spring Arbor in September?

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

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

The average day length in September in Spring Arbor, Michigan, is 12h and 28min.

When are sunrise and sunset in September in Spring Arbor?

On the first day of September, sunrise is at 7:04 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:20 pm EDT.

How long on average sun shines in September in Spring Arbor?

In September, the average sunshine duration is 7.9h.

What is the UV index reading in September in Spring Arbor?

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

Average temperature in September - Spring Arbor, MI
  • Average high temperature in September: 71.6°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in September: 53.4°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

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Average pressure in September
Spring Arbor, MI

Average pressure in September - Spring Arbor, MI
  • Average pressure in September: 30.03"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
Spring Arbor, MI

Average wind speed in September - Spring Arbor, MI
  • Average wind speed in September: 7.3mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).

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Average humidity in September
Spring Arbor, MI

Average humidity in September - Spring Arbor, MI
  • Average humidity in September: 80%

The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are March, April and October (78%).

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Average rainfall in September
Spring Arbor, MI

Average rainfall in September - Spring Arbor, MI
  • Average rainfall in September: 1.69"

The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is December (1.18").

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Average rainfall days in September
Spring Arbor, MI

Average rainfall days in September - Spring Arbor, MI
  • Average rainfall days in September: 13.8 days

The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is February (5.3 days).

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Average snowfall in September
Spring Arbor, MI

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

The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Spring Arbor, MI

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

The month with the highest number of snowfall days is January (13.6 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
Spring Arbor, MI

Average daylight in September / Average sunshine in September - Spring Arbor, 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 12min).

  • Average sunshine in September: 7h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

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Average sunshine days in September
Spring Arbor, MI

Average sunshine days in September - Spring Arbor, MI
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is May (9.3 days).

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Average UV index in September
Spring Arbor, MI

Average UV index in September - Spring Arbor, MI
  • Average UV index in September: 3

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in September
Spring Arbor, MI

Average cloud cover in September - Spring Arbor, MI
  • Average cloud cover in September: 38

The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in September
Spring Arbor, MI

Average visibility in September - Spring Arbor, MI
  • Average visibility in September: 5mi

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

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Spring Arbor, Michigan, USA

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