September weather forecast
Rolling Acres, LA

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Weather in September

September, the first month of the autumn in Rolling Acres, is also a hot month, with an average temperature fluctuating between 69.3°F (20.7°C) and 87.8°F (31°C).

Temperature

Rolling Acres starts September with an average high-temperature of a still hot 87.8°F (31°C), hinting at a minimal fluctuation from August. Rolling Acres reports an average low-temperature of 69.3°F (20.7°C) during the nights of September.

Heat index

For most parts of September, the heat index is calculated to be a scorching 104°F (40°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In September, the average relative humidity is 78%.

Rainfall

In Rolling Acres, in September, it is raining for 17.7 days, with typically 2.28" (58mm) of accumulated precipitation. Throughout the year, there are 175 rainfall days, and 28.74" (730mm) of precipitation is accumulated.

Snowfall

February through November are months without snowfall.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of September, sunrise is at 6:41 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:50 pm CDT.

Sunshine

The average sunshine in September is 9.5h.

UV index

In Rolling Acres, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 6 during September translates into the following guidance:
Shun overexposure. Protection from sun ravages is indispensable. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

The average high-temperature and low-temperature during September are 87.8°F (31°C) and 69.3°F (20.7°C) respectively. In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 104°F (40°C).

What is the average humidity in September?

The average relative humidity in September is 78%.

How much does it rain in September?

In Rolling Acres, in September, during 17.7 rainfall days, 2.28" (58mm) of precipitation is typically accumulated.

When it does not snow in Rolling Acres?

In Rolling Acres, snow does not fall in February through November.

What is the average length of the day in September in Rolling Acres?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:41 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:50 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration in Rolling Acres is 9.5h.

What is the UV index intensity in September?

In Rolling Acres, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health threat 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
Rolling Acres, LA

Average temperature in September - Rolling Acres, LA
  • Average high temperature in September: 87.8°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 (58.3°F).

  • Average low temperature in September: 69.3°F

The month with the highest average low temperature is August (73.4°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).

Average pressure in September
Rolling Acres, LA

Average pressure in September - Rolling Acres, LA
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).

Average wind speed in September
Rolling Acres, LA

Average wind speed in September - Rolling Acres, LA
  • Average wind speed in September: 4.5mph

The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.3mph).

Average humidity in September
Rolling Acres, LA

Average humidity in September - Rolling Acres, LA
  • Average humidity in September: 78%

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
Rolling Acres, LA

Average rainfall in September - Rolling Acres, LA
  • Average rainfall in September: 2.28"

The wettest month (with the highest rainfall) is August (3.66").
The driest month (with the least rainfall) is November (1.5").

Average rainfall days in September
Rolling Acres, LA

Average rainfall days in September - Rolling Acres, LA
  • Average rainfall days in September: 17.7 days

The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in September
Rolling Acres, LA

Average snowfall in September - Rolling Acres, LA
  • Average snowfall in September: 0"

The months with the highest snowfall are January and December (0.2").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Rolling Acres, LA

Average snowfall days in September - Rolling Acres, LA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Rolling Acres, LA

Average daylight in September / Average sunshine in September - Rolling Acres, 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 3min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in September
Rolling Acres, LA

Average sunshine days in September - Rolling Acres, LA
  • Average sunshine days in September: 9.9 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (6.8 days).

Average UV index in September
Rolling Acres, LA

Average UV index in September - Rolling Acres, LA
  • Average UV index in September: 6

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

Average cloud cover in September
Rolling Acres, LA

Average cloud cover in September - Rolling Acres, LA
  • Average cloud cover in September: 33

The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in September
Rolling Acres, LA

Average visibility in September - Rolling Acres, LA
  • Average visibility in September: 5mi

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

Rolling Acres, Louisiana, USA

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