September weather forecast
Cottonport, LA

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Weather in September

The first month of the autumn, September, is also a hot month in Cottonport, Louisiana, with temperature in the range of an average high of 87.4°F (30.8°C) and an average low of 68.9°F (20.5°C).

Temperature

September's advent presents an average high-temperature of a still hot 87.4°F (30.8°C), indicating a slight variation from the conditions of the previous month. Throughout September, Cottonport's nights cool down to an average of 68.9°F (20.5°C).

Heat index

The heat index for September is calculated to be a blisteringly hot 104°F (40°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In Cottonport, Louisiana, the average relative humidity in September is 78%.

Rainfall

The months with the least rainfall in Cottonport, Louisiana, are September and November Rain falls for 13.6 days and accumulates 2.17" (55mm) of rain.

Snowfall

In Cottonport, snow does not fall in April through November.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 6:44 am and sunset at 7:31 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:54 pm CDT.

Sunshine

In Cottonport, the average sunshine in September is 9.3h.

UV index

In Cottonport, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 6 in September translates into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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Frequently asked questions

How hot is it in Cottonport in September?

The average high-temperature, in September, in Cottonport, is 87.4°F (30.8°C), while the average low-temperature is 68.9°F (20.5°C). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is calculated to be 104°F (40°C).

What is the average humidity in September in Cottonport?

The average relative humidity in September in Cottonport is 78%.

What is the driest month in Cottonport?

The months with the least rainfall are September and November Rain falls for 13.6 days and accumulates 2.17" (55mm) of rain.

How many days does it rain in September in Cottonport?

In Cottonport, Louisiana, in September, during 13.6 rainfall days, 2.17" (55mm) of precipitation is typically accumulated.

When it does not snow in Cottonport?

April through November are months without snowfall in Cottonport, Louisiana.

What is the average length of the day in September in Cottonport?

The average day length in September in Cottonport, Louisiana, is 12h and 20min.

What time are sunrise and sunset in September in Cottonport?

In September, on the first day of the month, sunrise is at 6:44 am and sunset at 7:31 pm. On the last day of the month, in Cottonport, sunrise is at 7:01 am and sunset at 6:54 pm CDT.

How many hours of sunshine does Cottonport have in September?

In September, the average sunshine duration in Cottonport is 9.3h.

How high is the UV index in September in Cottonport?

The average daily maximum UV index in September in Cottonport, Louisiana, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Cottonport, LA

Average temperature in September - Cottonport, LA
  • Average high temperature in September: 87.4°F

The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (57°F).

  • Average low temperature in September: 68.9°F

The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

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Average pressure in September
Cottonport, LA

Average pressure in September - Cottonport, LA
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in September
Cottonport, LA

Average wind speed in September - Cottonport, LA
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest months (with the lowest average wind speed) are July and September (5.2mph).

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Average humidity in September
Cottonport, LA

Average humidity in September - Cottonport, LA
  • Average humidity in September: 78%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Cottonport, LA

Average rainfall in September - Cottonport, LA
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is January (3.58").
The driest months (with the least rainfall) are September and November (2.17").

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Average rainfall days in September
Cottonport, LA

Average rainfall days in September - Cottonport, LA
  • Average rainfall days in September: 13.6 days

The month with the highest number of rainy days is August (17.2 days).
The month with the least rainy days is October (9.6 days).

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Average snowfall in September
Cottonport, LA

Average snowfall in September - Cottonport, LA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Cottonport, LA

Average snowfall days in September - Cottonport, LA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight in September /
Average sunshine in September
Cottonport, LA

Average daylight in September / Average sunshine in September - Cottonport, LA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

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Average sunshine days in September
Cottonport, LA

Average sunshine days in September - Cottonport, LA
  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is October (20.4 days).
The month with the least sunshine days is August (12.5 days).

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Average UV index in September
Cottonport, LA

Average UV index in September - Cottonport, LA
  • Average UV index in September: 6

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in September
Cottonport, LA

Average cloud cover in September - Cottonport, LA
  • Average cloud cover in September: 34

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 30).

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Average visibility in September
Cottonport, LA

Average visibility in September - Cottonport, LA
  • Average visibility in September: 5mi

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

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Cottonport, Louisiana, USA

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