September weather forecast
Frontier, MI

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Weather in September

The first month of the autumn, September, is still a pleasant month in Frontier, Michigan, with an average temperature fluctuating between 72.5°F (22.5°C) and 54.1°F (12.3°C).

Temperature

September is marked by a subtle drop in average high-temperatures, transitioning from a warm 78.1°F (25.6°C) in August to a pleasant 72.5°F (22.5°C). An average nighttime temperature of 54.1°F (12.3°C) is recorded during September.

Humidity

In September, the average relative humidity is 80%.

Rainfall

In Frontier, in September, it is raining for 13.5 days, with typically 1.73" (44mm) of accumulated precipitation. In Frontier, during the entire year, the rain falls for 164.5 days and collects up to 27.76" (705mm) of precipitation.

Snowfall

June through September are months without snowfall in Frontier.

Daylight

In September, the average length of the day in Frontier is 12h and 28min.
On the first day of September in Frontier, Michigan, sunrise is at 7:05 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:21 pm EDT.

Sunshine

In September, the average sunshine in Frontier is 8h.

UV index

In Frontier, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: During September, 4 as the daily maximum UV index converts into the following advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Frontier in September?

In Frontier, in September, the average high-temperature is 72.5°F (22.5°C), and the average low-temperature is 54.1°F (12.3°C).

What is the average humidity in September in Frontier?

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

How many days does it rain in September in Frontier?

In Frontier, Michigan, in September, during 13.5 rainfall days, 1.73" (44mm) of precipitation is typically accumulated.

When it does not snow in Frontier?

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

Does it snow in Frontier in September?

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

How many hours of daylight does Frontier have in September?

In September, the average day length in Frontier, Michigan, is 12h and 28min.

When are sunrise and sunset in September in Frontier?

On the first day of September in Frontier, Michigan, sunrise is at 7:05 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:21 pm EDT.

How long on average sun shines in September in Frontier?

In Frontier, the average sunshine duration in September is 8h.

What is the UV index intensity in September in Frontier?

In Frontier, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health threat 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
Frontier, MI

Average temperature in September - Frontier, MI
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (29.5°F).

  • Average low temperature in September: 54.1°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in September
Frontier, MI

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

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Frontier, MI

Average wind speed in September - Frontier, MI
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in September
Frontier, MI

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

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).

Average rainfall in September
Frontier, MI

Average rainfall in September - Frontier, MI
  • Average rainfall in September: 1.73"

The wettest month (with the highest rainfall) is April (3.39").
The driest month (with the least rainfall) is December (1.65").

Average rainfall days in September
Frontier, MI

Average rainfall days in September - Frontier, MI
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (8 days).

Average snowfall in September
Frontier, MI

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

The month with the highest snowfall is February (4.65").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Frontier, MI

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

The month with the highest number of snowfall days is January (16 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Frontier, 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: 8h and 0min

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

Average sunshine days in September
Frontier, MI

Average sunshine days in September - Frontier, MI
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is November (14.6 days).
The month with the least sunshine days is February (8.9 days).

Average UV index in September
Frontier, MI

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

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

Average cloud cover in September
Frontier, MI

Average cloud cover in September - Frontier, MI
  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in September
Frontier, MI

Average visibility in September - Frontier, 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).

Frontier, Michigan, USA

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