September weather forecast
Somerset, MI

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Weather in September

September, the first month of the autumn in Somerset, is still a pleasant month, with an average temperature ranging between min 53.8°F (12.1°C) and max 71.6°F (22°C).

Temperature

September is characterized by a slight reduction in average high-temperature, easing from a moderately hot 77.5°F (25.3°C) in August to a pleasant 71.6°F (22°C). Somerset throughout September, experiences an average nighttime temperature of 53.8°F (12.1°C).

Humidity

In Somerset, the average relative humidity in September is 80%.

Rainfall

In September, the rain falls for 13.3 days. Throughout September, 1.46" (37mm) of precipitation is accumulated. Throughout the year, there are 144.6 rainfall days, and 20.2" (513mm) of precipitation is accumulated.

Snowfall

In Somerset, snow does not fall in June through September.

Daylight

In Somerset, the average length of the day in September is 12h and 28min.
On the first day of September, sunrise is at 7:03 am and sunset at 8:10 pm. On the last day of the month, 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 September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. When the Sun is at its strongest around midday, find shade and limit exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Jun 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

The high-temperature during September is 71.6°F (22°C) and the low-temperature is 53.8°F (12.1°C).

What is the average humidity in September?

In Somerset, the average relative humidity in September is 80%.

How many days does it rain in September?

In Somerset, in September, it is raining for 13.3 days, with typically 1.46" (37mm) of accumulated precipitation.

When it does not snow in Somerset?

June through September are months without snowfall.

Does it snow in Somerset in September?

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

How many hours of daylight does Somerset have in September?

The average day length in September is 12h and 28min.

What time are sunrise and sunset in September in Somerset?

On the first day of September in Somerset, sunrise is at 7:03 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:20 pm EDT.

How many hours of sunshine does Somerset have in September?

In Somerset, the average sunshine duration in September is 7.9h.

What is the UV index intensity in September in Somerset?

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Somerset, MI

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

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in September: 53.8°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 (17.1°F).

Average pressure in September
Somerset, MI

Average pressure in September - Somerset, 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).

Average wind speed in September
Somerset, MI

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

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).

Average humidity in September
Somerset, MI

Average humidity in September - Somerset, MI
  • Average humidity in September: 80%

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is April (77%).

Average rainfall in September
Somerset, MI

Average rainfall in September - Somerset, MI
  • Average rainfall in September: 1.46"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is December (0.87").

Average rainfall days in September
Somerset, MI

Average rainfall days in September - Somerset, MI
  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (4.8 days).

Average snowfall in September
Somerset, MI

Average snowfall in September - Somerset, MI
  • Average snowfall in September: 0"

The month with the highest snowfall is February (3.66").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Somerset, MI

Average snowfall days in September - Somerset, MI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Somerset, MI

Average daylight in September / Average sunshine in September - Somerset, 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 54min).

Average sunshine days in September
Somerset, MI

Average sunshine days in September - Somerset, MI
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is May (9.9 days).

Average UV index in September
Somerset, MI

Average UV index in September - Somerset, MI
  • Average UV index in September: 4

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).

Average cloud cover in September
Somerset, MI

Average cloud cover in September - Somerset, 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 32).

Average visibility in September
Somerset, MI

Average visibility in September - Somerset, 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).

Somerset, Michigan, USA

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