September weather forecast
Clarksville, MI

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Weather in September

September, the first month of the autumn in Clarksville, is still a pleasant month, with an average temperature varying between 52.7°F (11.5°C) and 72.1°F (22.3°C).

Temperature

With the onset of September, Clarksville's average high-temperature slightly adjusts, moderately receding from August's warm 77.9°F (25.5°C) to a pleasant 72.1°F (22.3°C). The nighttime temperature dips to a cool 52.7°F (11.5°C) on average during September.

Humidity

In Clarksville, the average relative humidity in September is 79%.

Rainfall

In Clarksville, in September, it is raining for 9.8 days, with typically 0.79" (20mm) of accumulated precipitation. In Clarksville, during the entire year, the rain falls for 118.3 days and collects up to 11.1" (282mm) of precipitation.

Snowfall

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

Daylight

In Clarksville, the average length of the day in September is 12h and 29min.
On the first day of September, sunrise is at 7:06 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 7:23 pm EDT.

Sunshine

The average sunshine in September is 8h.

UV index

The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 3 during September, leads to the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Enhance your sun protection with tightly woven, yet airy clothing.

Frequently asked questions

What are September temperatures?

In September, the average high-temperature and low-temperature are 72.1°F (22.3°C) and 52.7°F (11.5°C) respectively.

What is the average humidity in September?

In Clarksville, the average relative humidity in September is 79%.

How much does it rain in September?

In September, the rain falls for 9.8 days. Throughout September, 0.79" (20mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Clarksville have in September?

The average day length in September 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 8:15 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 7:23 pm EDT.

How many hours of sunshine does Clarksville have in September?

The average sunshine duration in September is 8h.

How high is the UV index in September?

In Clarksville, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health risk 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
Clarksville, MI

Average temperature in September - Clarksville, MI
  • Average high temperature in September: 72.1°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 (27.3°F).

  • Average low temperature in September: 52.7°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in September
Clarksville, MI

Average pressure in September - Clarksville, 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
Clarksville, MI

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

The windiest month (with the highest average wind speed) is February (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in September
Clarksville, MI

Average humidity in September - Clarksville, MI
  • Average humidity in September: 79%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (76%).

Average rainfall in September
Clarksville, MI

Average rainfall in September - Clarksville, MI
  • Average rainfall in September: 0.79"

The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is February (0.55").

Average rainfall days in September
Clarksville, MI

Average rainfall days in September - Clarksville, MI
  • Average rainfall days in September: 9.8 days

The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is February (4.3 days).

Average snowfall in September
Clarksville, MI

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

The month with the highest snowfall is February (1.77").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Clarksville, MI

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

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 8h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).

Average sunshine days in September
Clarksville, MI

Average sunshine days in September - Clarksville, MI
  • Average sunshine days in September: 16.9 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (12.7 days).

Average UV index in September
Clarksville, MI

Average UV index in September - Clarksville, 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, November and December (UV index 1).

Average cloud cover in September
Clarksville, MI

Average cloud cover in September - Clarksville, MI
  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in September
Clarksville, MI

Average visibility in September - Clarksville, MI
  • Average visibility in September: 6mi

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

Clarksville, Michigan, USA

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