September weather forecast
New Llano, LA

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Weather in September

The first month of the autumn, September, is still a tropical month in New Llano, Louisiana, with an average temperature fluctuating between 68.7°F (20.4°C) and 88.7°F (31.5°C).

Temperature

In the transition from August to September, New Llano reports an average high-temperature of a still hot 88.7°F (31.5°C), indicating a close resemblance to the prior month. In New Llano, the nighttime temperature averages to a pleasant 68.7°F (20.4°C) during September.

Heat index

The heat index value during September is calculated to be a blistering 105.8°F (41°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In September, the average relative humidity in New Llano, Louisiana, is 75%.

Rainfall

In New Llano, Louisiana, during September, the rain falls for 15.7 days and regularly aggregates up to 2.32" (59mm) of precipitation. Throughout the year, in New Llano, there are 156.9 rainfall days, and 25.98" (660mm) of precipitation is accumulated.

Snowfall

March 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 in New Llano, Louisiana, sunrise is at 6:49 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:59 pm CDT.

Sunshine

The average sunshine in September is 9.3h.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 6 in September interprets into the following advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
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Frequently asked questions

Is it hot in New Llano during September?

The high-temperature, in September, in New Llano, is 88.7°F (31.5°C), while the low-temperature averages to 68.7°F (20.4°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 105.8°F (41°C).

What is the average humidity in September in New Llano?

The average relative humidity in September in New Llano is 75%.

How much does it rain in New Llano in September?

In New Llano, during September, the rain falls for 15.7 days and regularly aggregates up to 2.32" (59mm) of precipitation.

When it does not snow in New Llano?

In New Llano, Louisiana, snow does not fall in March through November.

How many hours of daylight does New Llano have in September?

In New Llano, Louisiana, the average day length in September is 12h and 20min.

When is the sunrise / sunset in September in New Llano?

On the first day of September in New Llano, Louisiana, sunrise is at 6:49 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:59 pm CDT.

How many hours of sunshine does New Llano have in September?

The average sunshine duration in September in New Llano is 9.3h.

What is the UV index intensity in September in New Llano?

In New Llano, Louisiana, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's 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
New Llano, LA

Average temperature in September - New Llano, LA
  • Average high temperature in September: 88.7°F

The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in September: 68.7°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
New Llano, LA

Average pressure in September - New Llano, 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).

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Average wind speed in September
New Llano, LA

Average wind speed in September - New Llano, LA
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).

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Average humidity in September
New Llano, LA

Average humidity in September - New Llano, LA
  • Average humidity in September: 75%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
New Llano, LA

Average rainfall in September - New Llano, LA
  • Average rainfall in September: 2.32"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is November (1.34").

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Average rainfall days in September
New Llano, LA

Average rainfall days in September - New Llano, LA
  • Average rainfall days in September: 15.7 days

The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is November (8.2 days).

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Average snowfall in September
New Llano, LA

Average snowfall in September - New Llano, 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").

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Average snowfall days in September
New Llano, LA

Average snowfall days in September - New Llano, LA
  • Average snowfall days in September: 0.1 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 and October (0 days).

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Average daylight in September /
Average sunshine in September
New Llano, LA

Average daylight in September / Average sunshine in September - New Llano, 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).

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Average sunshine days in September
New Llano, LA

Average sunshine days in September - New Llano, LA
  • Average sunshine days in September: 12 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is August (9.8 days).

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Average UV index in September
New Llano, LA

Average UV index in September - New Llano, 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).

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Average cloud cover in September
New Llano, LA

Average cloud cover in September - New Llano, LA
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is October (Cloud cover 30).

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Average visibility in September
New Llano, LA

Average visibility in September - New Llano, 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).

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New Llano, Louisiana, USA

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