September weather forecast
Clarksdale, MO

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Clarksdale, Missouri, with an average temperature fluctuating between 77.5°F (25.3°C) and 57.9°F (14.4°C).

Temperature

Clarksdale in September undergoes a slight reduction in the average high-temperature, shifting from August's warm 83.8°F (28.8°C) to a still moderately hot 77.5°F (25.3°C). Clarksdale's nights in September cool down to an average low-temperature of 57.9°F (14.4°C).

Humidity

In Clarksdale, the average relative humidity in September is 75%.

Rainfall

In Clarksdale, in September, it is raining for 12.2 days, with typically 2.4" (61mm) of accumulated precipitation. Throughout the year, there are 132.3 rainfall days, and 27.28" (693mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 6:46 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:01 pm CDT.

Sunshine

In September, the average sunshine is 9.3h.

UV index

In Clarksdale, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 5 in September leads to these guidelines:
Guard yourself - Avoiding sunburn is suggested. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

In September, the average high-temperature and low-temperature are 77.5°F (25.3°C) and 57.9°F (14.4°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 93.2°F (34°C).

What is the average humidity in September?

In September, the average relative humidity in Clarksdale is 75%.

How many days does it rain in September?

In September, the rain falls for 12.2 days. Throughout September, 2.4" (61mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

What is the average length of the day in September?

In Clarksdale, the average day length in September is 12h and 26min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:46 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:01 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.3h.

What is the UV index intensity in September?

In Clarksdale, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from 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
Clarksdale, MO

Average temperature in September - Clarksdale, MO
  • Average high temperature in September: 77.5°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (34.2°F).

  • Average low temperature in September: 57.9°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in September
Clarksdale, MO

Average pressure in September - Clarksdale, MO
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in September
Clarksdale, MO

Average wind speed in September - Clarksdale, MO
  • Average wind speed in September: 7.4mph

The windiest months (with the highest average wind speed) are February and March (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).

Average humidity in September
Clarksdale, MO

Average humidity in September - Clarksdale, MO
  • Average humidity in September: 75%

The month with the highest relative humidity is June (79%).
The months with the lowest relative humidity are October and November (70%).

Average rainfall in September
Clarksdale, MO

Average rainfall in September - Clarksdale, MO
  • Average rainfall in September: 2.4"

The wettest month (with the highest rainfall) is May (4.02").
The driest months (with the least rainfall) are January and February (0.94").

Average rainfall days in September
Clarksdale, MO

Average rainfall days in September - Clarksdale, MO
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (3.8 days).

Average snowfall in September
Clarksdale, MO

Average snowfall in September - Clarksdale, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is January (3.43").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Clarksdale, MO

Average snowfall days in September - Clarksdale, MO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (7.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Clarksdale, MO

Average daylight in September / Average sunshine in September - Clarksdale, MO
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

Average sunshine days in September
Clarksdale, MO

Average sunshine days in September - Clarksdale, MO
  • Average sunshine days in September: 16.3 days

The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (10.8 days).

Average UV index in September
Clarksdale, MO

Average UV index in September - Clarksdale, MO
  • Average UV index in September: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Clarksdale, MO

Average cloud cover in September - Clarksdale, MO
  • Average cloud cover in September: 29

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in September
Clarksdale, MO

Average visibility in September - Clarksdale, MO
  • Average visibility in September: 6mi

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

Clarksdale, Missouri, USA

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