September weather forecast
Sibley, LA

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Weather in September

The first month of the autumn, September, is still a tropical month in Sibley, Louisiana, with an average temperature varying between 88.3°F (31.3°C) and 67.3°F (19.6°C).

Temperature

Sibley's progression into September involves a minor drop in the average high-temperature, slightly receding from a tropical 94.6°F (34.8°C) in August to a still hot 88.3°F (31.3°C). Sibley's average low-temperature is measured at a refreshing 67.3°F (19.6°C) during September.

Heat index

Throughout September, the heat index is calculated to be a very hot 100.4°F (38°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. 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 are especially crucial for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In September, the average relative humidity in Sibley is 70%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.8 days and accumulates 2.36" (60mm) of precipitation.

Snowfall

April through November are months without snowfall in Sibley.

Daylight

In Sibley, the average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:48 am and sunset at 7:37 pm. On the last day of September, in Sibley, sunrise is at 7:07 am and sunset at 6:58 pm CDT.

Sunshine

The average sunshine in September in Sibley is 9.6h.

UV index

In Sibley, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 6 during September translates into the following directions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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Frequently asked questions

How hot is September in Sibley?

In Sibley, in September, the average high-temperature is 88.3°F (31.3°C), and the average low-temperature is 67.3°F (19.6°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is calculated to be 100.4°F (38°C).

What is the average humidity in September in Sibley?

The average relative humidity in September in Sibley is 70%.

What is the driest month in Sibley?

September is the month with the least rainfall in Sibley. Rain falls for 13.8 days and accumulates 2.36" (60mm) of precipitation.

How much does it rain in Sibley in September?

In Sibley, Louisiana, during September, the rain falls for 13.8 days and regularly aggregates up to 2.36" (60mm) of precipitation.

When it does not snow in Sibley?

In Sibley, Louisiana, snow does not fall in April through November.

What is the average length of the day in September in Sibley?

In September, the average day length is 12h and 22min.

What time are sunrise and sunset in September in Sibley?

On the first day of September in Sibley, sunrise is at 6:48 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:58 pm CDT.

How many hours of sunshine does Sibley have in September?

In Sibley, the average sunshine duration in September is 9.6h.

What is the UV index reading in September in Sibley?

In September, the average daily maximum UV index in Sibley is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
Sibley, LA

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

The warmest months (with the highest average high temperature) are July and August (94.6°F).
The month with the lowest average high temperature is January (53.8°F).

  • Average low temperature in September: 67.3°F

The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).

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Average pressure in September
Sibley, LA

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

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Average wind speed in September
Sibley, LA

Average wind speed in September - Sibley, LA
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest months (with the lowest average wind speed) are July, August and September (5mph).

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Average humidity in September
Sibley, LA

Average humidity in September - Sibley, LA
  • Average humidity in September: 70%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is August (69%).

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Average rainfall in September
Sibley, LA

Average rainfall in September - Sibley, LA
  • Average rainfall in September: 2.36"

The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (2.36").

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Average rainfall days in September
Sibley, LA

Average rainfall days in September - Sibley, LA
  • Average rainfall days in September: 13.8 days

The month with the highest number of rainy days is March (15.8 days).
The month with the least rainy days is October (10.2 days).

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Average snowfall in September
Sibley, LA

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

The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Sibley, LA

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

The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Sibley, LA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 0min).

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Average sunshine days in September
Sibley, LA

Average sunshine days in September - Sibley, LA
  • Average sunshine days in September: 14.4 days

The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is August (12.9 days).

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Average UV index in September
Sibley, LA

Average UV index in September - Sibley, 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).

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Average cloud cover in September
Sibley, LA

Average cloud cover in September - Sibley, LA
  • Average cloud cover in September: 28

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are August and September (Cloud cover 28).

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Average visibility in September
Sibley, LA

Average visibility in September - Sibley, LA
  • Average visibility in September: 6mi

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

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Sibley, Louisiana, USA

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