September weather forecast
Big Rapids, MI

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Weather in September

September, the first month of the autumn in Big Rapids, is still a pleasant month, with an average temperature fluctuating between 51.1°F (10.6°C) and 70.5°F (21.4°C).

Temperature

As August makes way for September, Big Rapids's average high-temperature eases from a moderately hot 76.6°F (24.8°C) to a pleasant 70.5°F (21.4°C). During September, Big Rapids's temperature falls to a steady low-temperature average of 51.1°F (10.6°C).

Humidity

In September, the average relative humidity is 79%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.8 days and typically collects 1.18" (30mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 29min.
On the first day of the month, sunrise is at 7:06 am and sunset at 8:16 pm. On the last day of September, sunrise is at 7:39 am and sunset at 7:24 pm EDT.

Sunshine

In September, the average sunshine is 7.8h.

UV index

The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In September, an average UV index of 3 transforms into the following instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

The average high-temperature, in September, in Big Rapids, is 70.5°F (21.4°C), while the average low-temperature is 51.1°F (10.6°C).

What is the average humidity in September?

In September, the average relative humidity is 79%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 11.8 days and typically collects 1.18" (30mm) of precipitation.

How many days does it rain in September?

In Big Rapids, in September, during 11.8 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Big Rapids have in September?

The average day length in September in Big Rapids is 12h and 29min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:06 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 7:24 pm EDT.

How long on average sun shines in September in Big Rapids?

In September, the average sunshine duration is 7.8h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's 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
Big Rapids, MI

Average temperature in September - Big Rapids, MI
  • Average high temperature in September: 70.5°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (25.5°F).

  • Average low temperature in September: 51.1°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).

Average pressure in September
Big Rapids, MI

Average pressure in September - Big Rapids, MI
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Big Rapids, MI

Average wind speed in September - Big Rapids, MI
  • Average wind speed in September: 7.4mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

Average humidity in September
Big Rapids, MI

Average humidity in September - Big Rapids, MI
  • Average humidity in September: 79%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (74%).

Average rainfall in September
Big Rapids, MI

Average rainfall in September - Big Rapids, MI
  • Average rainfall in September: 1.18"

The wettest month (with the highest rainfall) is October (3.43").
The driest month (with the least rainfall) is September (1.18").

Average rainfall days in September
Big Rapids, MI

Average rainfall days in September - Big Rapids, MI
  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is October (16.5 days).
The month with the least rainy days is February (5.2 days).

Average snowfall in September
Big Rapids, MI

Average snowfall in September - Big Rapids, MI
  • Average snowfall in September: 0"

The month with the highest snowfall is January (8.82").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Big Rapids, MI

Average snowfall days in September - Big Rapids, MI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (22.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Big Rapids, MI

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

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 7h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 0min).

Average sunshine days in September
Big Rapids, MI

Average sunshine days in September - Big Rapids, MI
  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is February (6.4 days).

Average UV index in September
Big Rapids, MI

Average UV index in September - Big Rapids, 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, February, November and December (UV index 1).

Average cloud cover in September
Big Rapids, MI

Average cloud cover in September - Big Rapids, MI
  • Average cloud cover in September: 38

The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in September
Big Rapids, MI

Average visibility in September - Big Rapids, MI
  • Average visibility in September: 5mi

The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January and February (4mi).

Big Rapids, Michigan, USA

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