September weather forecast
Lecompte, LA

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Weather in September

September, the first month of the autumn in Lecompte, is also a hot month, with an average temperature fluctuating between 68.5°F (20.3°C) and 87.6°F (30.9°C).

Temperature

Shifting into September, Lecompte records an average high-temperature of a still tropical 87.6°F (30.9°C), presenting minor fluctuations compared to the previous month. Lecompte's temperature lowers to a mean of 68.5°F (20.3°C) during the nights in September.

Heat index

September's heat index is computed to be a scorching 104°F (40°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

The average relative humidity in September is 77%.

Rainfall

In September, in Lecompte, the rain falls for 15.1 days. Throughout September, 2.32" (59mm) of precipitation is accumulated. Throughout the year, there are 164.9 rainfall days, and 34.96" (888mm) of precipitation is accumulated.

Snowfall

In Lecompte, snow does not fall in March through December.

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 7:32 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:55 pm CDT.

Sunshine

In Lecompte, the average sunshine in September is 9.4h.

UV index

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 6 during September translates into these guidelines:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

The average high-temperature and low-temperature during September are 87.6°F (30.9°C) and 68.5°F (20.3°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is computed to be 104°F (40°C).

What is the average humidity in September?

The average relative humidity in September is 77%.

How many days does it rain in September in Lecompte?

In Lecompte, in September, it is raining for 15.1 days, with typically 2.32" (59mm) of accumulated precipitation.

When it does not snow?

March through December are months without snowfall.

How many hours of daylight does Lecompte have in September?

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

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:46 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:55 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.4h.

How high is the UV index in September?

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to 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
Lecompte, LA

Average temperature in September - Lecompte, LA
  • Average high temperature in September: 87.6°F

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in September: 68.5°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 (41.2°F).

Average pressure in September
Lecompte, LA

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.95"Hg).

Average wind speed in September
Lecompte, LA

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

The windiest month (with the highest average wind speed) is February (7.7mph).
The calmest months (with the lowest average wind speed) are July, August and September (5.2mph).

Average humidity in September
Lecompte, LA

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

The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Lecompte, LA

Average rainfall in September - Lecompte, LA
  • Average rainfall in September: 2.32"

The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is November (2.13").

Average rainfall days in September
Lecompte, LA

Average rainfall days in September - Lecompte, LA
  • Average rainfall days in September: 15.1 days

The month with the highest number of rainy days is August (17.9 days).
The month with the least rainy days is November (10 days).

Average snowfall in September
Lecompte, LA

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

The month with the highest snowfall is January (0.51").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
Lecompte, LA

Average snowfall days in September - Lecompte, 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 March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in September / Average sunshine in September - Lecompte, 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 July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in September
Lecompte, LA

Average sunshine days in September - Lecompte, LA
  • Average sunshine days in September: 13.2 days

The month with the most sunshine days is October (19.7 days).
The month with the least sunshine days is August (10.8 days).

Average UV index in September
Lecompte, LA

Average UV index in September - Lecompte, 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).

Average cloud cover in September
Lecompte, LA

Average cloud cover in September - Lecompte, LA
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in September
Lecompte, LA

Average visibility in September - Lecompte, 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).

Lecompte, Louisiana, USA

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