September weather forecast
Lyeffion, AL

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Weather in September

September, the first month of the autumn in Lyeffion, is still a tropical month, with an average temperature varying between 87.4°F (30.8°C) and 68°F (20°C).

Temperature

With the transition into September, Lyeffion notes an average high-temperature of a still tropical 87.4°F (30.8°C), closely resembling August. In Lyeffion, the average nighttime temperature during September is a pleasant 68°F (20°C).

Heat index

In September, the heat index is appraised at a very hot 102.2°F (39°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In Lyeffion, the average relative humidity in September is 75%.

Rainfall

In Lyeffion, during September, the rain falls for 16.6 days and regularly aggregates up to 2.72" (69mm) of precipitation. In Lyeffion, during the entire year, the rain falls for 176.5 days and collects up to 37.72" (958mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

In Lyeffion, the average length of the day in September is 12h and 21min.
On the first day of the month, sunrise is at 6:24 am and sunset at 7:11 pm. On the last day of September, sunrise is at 6:41 am and sunset at 6:33 pm CDT.

Sunshine

In September, the average sunshine is 8.8h.

UV index

In September, the average daily maximum UV index in Lyeffion is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 6 during September translates into the following directions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

During September, Lyeffion experiences an average high-temperature of 87.4°F (30.8°C) and a low-temperature of 68°F (20°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in September is appraised at 102.2°F (39°C).

What is the average humidity in September?

The average relative humidity in September in Lyeffion is 75%.

How much does it rain in September?

In Lyeffion, during September, the rain falls for 16.6 days and regularly aggregates up to 2.72" (69mm) of precipitation.

When it does not snow?

In Lyeffion, snow does not fall in April through November.

What is the average length of the day in September?

In Lyeffion, the average day length in September is 12h and 21min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:24 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:33 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration in Lyeffion is 8.8h.

What is the UV index intensity in September?

In September, the average daily maximum UV index 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
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Lyeffion, AL

Average temperature in September - Lyeffion, AL
  • Average high temperature in September: 87.4°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (57.6°F).

  • Average low temperature in September: 68°F

The months with the highest average low temperature are July and August (72.3°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).

Average pressure in September
Lyeffion, AL

Average pressure in September - Lyeffion, AL
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

Average wind speed in September
Lyeffion, AL

Average wind speed in September - Lyeffion, AL
  • Average wind speed in September: 4.7mph

The windiest month (with the highest average wind speed) is March (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).

Average humidity in September
Lyeffion, AL

Average humidity in September - Lyeffion, AL
  • Average humidity in September: 75%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Lyeffion, AL

Average rainfall in September - Lyeffion, AL
  • Average rainfall in September: 2.72"

The wettest month (with the highest rainfall) is August (4.72").
The driest month (with the least rainfall) is November (2.13").

Average rainfall days in September
Lyeffion, AL

Average rainfall days in September - Lyeffion, AL
  • Average rainfall days in September: 16.6 days

The month with the highest number of rainy days is July (23.9 days).
The month with the least rainy days is November (7.6 days).

Average snowfall in September
Lyeffion, AL

Average snowfall in September - Lyeffion, AL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.28").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Lyeffion, AL

Average snowfall days in September - Lyeffion, AL
  • Average snowfall days in September: 0 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, September and October (0 days).

Average daylight in September /
Average sunshine in September
Lyeffion, AL

Average daylight in September / Average sunshine in September - Lyeffion, AL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in September
Lyeffion, AL

Average sunshine days in September - Lyeffion, AL
  • Average sunshine days in September: 11.4 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is July (5.1 days).

Average UV index in September
Lyeffion, AL

Average UV index in September - Lyeffion, AL
  • Average UV index in September: 6

The months with the highest UV index are 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
Lyeffion, AL

Average cloud cover in September - Lyeffion, AL
  • Average cloud cover in September: 33

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 30).

Average visibility in September
Lyeffion, AL

Average visibility in September - Lyeffion, AL
  • Average visibility in September: 5mi

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

Lyeffion, Alabama, USA

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