September weather forecast
Biltmore, LA

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Weather in September

The first month of the autumn, September, is still a tropical month in Biltmore, Louisiana, with temperature in the range of an average high of 88.3°F (31.3°C) and an average low of 70°F (21.1°C).

Temperature

September's beginning signals an average high-temperature of a still tropical 88.3°F (31.3°C), barely different from August's 91.9°F (33.3°C). In the month of September, Biltmore experiences an average low-temperature of 70°F (21.1°C).

Heat index

During September, the heat index is estimated at an extremely hot 105.8°F (41°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In Biltmore, the average relative humidity in September is 78%.

Rainfall

March and September are months with the least rain when the rain falls for 9.7 days and typically aggregates up to 0.28" (7mm) of rain.

Snowfall

In Biltmore, snow does not fall in February through November.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 6:41 am and sunset at 7:26 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:50 pm CDT.

Sunshine

In Biltmore, the average sunshine in September is 9.5h.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 6 in September translates into this advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

How hot is September?

The high-temperature, in September, in Biltmore, records 88.3°F (31.3°C), while the low-temperature is 70°F (21.1°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is estimated at 105.8°F (41°C).

What is the average humidity in September?

In September, the average relative humidity is 78%.

What is the driest month?

March and September are months with the least rain when the rain falls for 9.7 days and typically aggregates up to 0.28" (7mm) of rain.

How much does it rain in September?

In Biltmore, in September, it is raining for 9.7 days, with typically 0.28" (7mm) of accumulated precipitation.

When it does not snow in Biltmore?

February through November are months without snowfall.

What is the average length of the day in September?

In Biltmore, the average day length in September is 12h and 20min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:41 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:50 pm CDT.

How many hours of sunshine does Biltmore have in September?

The average sunshine duration in September is 9.5h.

What is the UV index intensity in September?

The average daily maximum UV index in September in Biltmore is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Biltmore, LA

Average temperature in September - Biltmore, LA
  • Average high temperature in September: 88.3°F

The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is January (58.8°F).

  • Average low temperature in September: 70°F

The month with the highest average low temperature is August (74.3°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).

Average pressure in September
Biltmore, LA

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in September
Biltmore, LA

Average wind speed in September - Biltmore, LA
  • Average wind speed in September: 4.7mph

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

Average humidity in September
Biltmore, LA

Average humidity in September - Biltmore, LA
  • Average humidity in September: 78%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Biltmore, LA

Average rainfall in September - Biltmore, LA
  • Average rainfall in September: 0.28"

The wettest month (with the highest rainfall) is July (1.1").
The driest months (with the least rainfall) are March and September (0.28").

Average rainfall days in September
Biltmore, LA

Average rainfall days in September - Biltmore, LA
  • Average rainfall days in September: 9.7 days

The month with the highest number of rainy days is July (12.4 days).
The month with the least rainy days is November (4.6 days).

Average snowfall days in September
Biltmore, LA

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

The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

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

Average daylight in September / Average sunshine in September - Biltmore, 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 months with the most sunshine are June and August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in September
Biltmore, LA

Average sunshine days in September - Biltmore, LA
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is November (24.1 days).
The month with the least sunshine days is July (12.5 days).

Average UV index in September
Biltmore, LA

Average UV index in September - Biltmore, 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
Biltmore, LA

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

The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in September
Biltmore, LA

Average visibility in September - Biltmore, 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).

Biltmore, Louisiana, USA

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