September weather forecast
Longleaf, LA

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Weather in September

The first month of the autumn, September, is also a hot month in Longleaf, Louisiana, with an average temperature fluctuating between 68.4°F (20.2°C) and 87.4°F (30.8°C).

Temperature

The advent of September brings an average high-temperature of a still hot 87.4°F (30.8°C), exhibiting minor difference from the previous month. The month of September records an average low-temperature of 68.4°F (20.2°C).

Heat index

September's average heat index is computed to be a very hot 102.2°F (39°C). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In Longleaf, Louisiana, the average relative humidity in September is 77%.

Rainfall

The month with the least rainfall in Longleaf is September, when the rain falls for 13.9 days and typically collects 2.05" (52mm) of precipitation.

Snowfall

In Longleaf, snow does not fall in March through November.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of the month, sunrise is at 6:46 am and sunset at 7:33 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:56 pm CDT.

Sunshine

The average sunshine in September in Longleaf, Louisiana, is 9.2h.

UV index

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
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Frequently asked questions

Is it hot in Longleaf during September?

In Longleaf, 87.4°F (30.8°C) is the average high-temperature and 68.4°F (20.2°C) is the average low-temperature during September. In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is computed to be 102.2°F (39°C).

What is the average humidity in September in Longleaf?

In Longleaf, Louisiana, the average relative humidity in September is 77%.

What is the driest month in Longleaf?

The month with the least rainfall in Longleaf is September, when the rain falls for 13.9 days and typically collects 2.05" (52mm) of precipitation.

How many days does it rain in September in Longleaf?

In September, the rain falls for 13.9 days. Throughout September, 2.05" (52mm) of precipitation is accumulated.

When it does not snow in Longleaf?

March through November are months without snowfall in Longleaf, Louisiana.

How many hours of daylight does Longleaf have in September?

The average day length in September in Longleaf is 12h and 20min.

When are sunrise and sunset in September in Longleaf?

On the first day of September, sunrise is at 6:46 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:56 pm CDT.

How long on average sun shines in September in Longleaf?

In September, the average sunshine duration in Longleaf, Louisiana, is 9.2h.

How high is the UV index in September in Longleaf?

In Longleaf, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents 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
Longleaf, LA

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

The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (57°F).

  • Average low temperature in September: 68.4°F

The month with the highest average low temperature is August (73.2°F).
The coldest month (with the lowest average low temperature) is January (41°F).

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Average pressure in September
Longleaf, LA

Average pressure in September - Longleaf, LA
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Longleaf, LA

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

The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest month (with the lowest average wind speed) is July (5.1mph).

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Average humidity in September
Longleaf, LA

Average humidity in September - Longleaf, LA
  • Average humidity in September: 77%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in September
Longleaf, LA

Average rainfall in September - Longleaf, LA
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is September (2.05").

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Average rainfall days in September
Longleaf, LA

Average rainfall days in September - Longleaf, LA
  • Average rainfall days in September: 13.9 days

The month with the highest number of rainy days is August (16.8 days).
The month with the least rainy days is October (9.7 days).

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Average snowfall in September
Longleaf, LA

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

The month with the highest snowfall is January (0.59").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Longleaf, LA

Average snowfall days in September - Longleaf, 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
Longleaf, LA

Average daylight in September / Average sunshine in September - Longleaf, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

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Average sunshine days in September
Longleaf, LA

Average sunshine days in September - Longleaf, LA
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is October (20 days).
The month with the least sunshine days is August (12.3 days).

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Average UV index in September
Longleaf, LA

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

The months with the highest UV index are June and July (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
Longleaf, LA

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

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is October (Cloud cover 30).

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Average visibility in September
Longleaf, LA

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

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

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Longleaf, Louisiana, USA

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