September weather forecast
Longacre, LA

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Weather in September

The first month of the autumn, September, is still a hot month in Longacre, Louisiana, with an average temperature ranging between max 88.2°F (31.2°C) and min 69.1°F (20.6°C).

Temperature

The arrival of September signals a subtle shift in temperature, down from a hot 93.6°F (34.2°C) in August to a still tropical 88.2°F (31.2°C). In September, Longacre experiences a temperature dip to an average of 69.1°F (20.6°C) at night.

Heat index

The heat index for September is evaluated at a scorching 104°F (40°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Realize that the values for the heat index are set for shaded places and light winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In Longacre, the average relative humidity in September is 76%.

Rainfall

In Longacre, in September, it is raining for 16.9 days, with typically 2.09" (53mm) of accumulated precipitation. Throughout the year, in Longacre, there are 163.2 rainfall days, and 25.08" (637mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Longacre, the average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 6:49 am and sunset at 7:35 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:58 pm CDT.

Sunshine

In September, the average sunshine is 9.3h.

UV index

In Longacre, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 6 in September translates into these instructions:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. 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. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Updated: Jul 10, 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 88.2°F (31.2°C) and 69.1°F (20.6°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is evaluated at 104°F (40°C).

What is the average humidity in September?

In September, the average relative humidity is 76%.

How much does it rain in September?

In Longacre, during September, the rain falls for 16.9 days and regularly aggregates up to 2.09" (53mm) of precipitation.

When it does not snow in Longacre?

March through November are months without snowfall.

What is the average length of the day in September?

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

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:49 am and sunset at 7:35 pm. On the last day of the month, in Longacre, sunrise is at 7:06 am and sunset at 6:58 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.3h.

How high is the UV index in September?

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

Average temperature in September - Longacre, LA
  • Average high temperature in September: 88.2°F

The warmest months (with the highest average high temperature) are July and August (93.6°F).
The month with the lowest average high temperature is January (57.7°F).

  • Average low temperature in September: 69.1°F

The months with the highest average low temperature are July and August (73.8°F).
The coldest month (with the lowest average low temperature) is January (41.4°F).

Average pressure in September
Longacre, LA

Average pressure in September - Longacre, 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 (29.93"Hg).

Average wind speed in September
Longacre, LA

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

The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

Average humidity in September
Longacre, LA

Average humidity in September - Longacre, LA
  • Average humidity in September: 76%

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

Average rainfall in September
Longacre, LA

Average rainfall in September - Longacre, LA
  • Average rainfall in September: 2.09"

The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is November (1.3").

Average rainfall days in September
Longacre, LA

Average rainfall days in September - Longacre, LA
  • Average rainfall days in September: 16.9 days

The month with the highest number of rainy days is August (20.5 days).
The month with the least rainy days is November (7.7 days).

Average snowfall in September
Longacre, LA

Average snowfall in September - Longacre, 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 and November (0").

Average snowfall days in September
Longacre, LA

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

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

Average daylight in September / Average sunshine in September - Longacre, 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 months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in September
Longacre, LA

Average sunshine days in September - Longacre, LA
  • Average sunshine days in September: 11.4 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is August (7.9 days).

Average UV index in September
Longacre, LA

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

The months with the highest UV index are May, 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
Longacre, LA

Average cloud cover in September - Longacre, LA
  • Average cloud cover in September: 33

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

Average visibility in September
Longacre, LA

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

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

Longacre, Louisiana, USA

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