September weather forecast and climate
Cottonton, AL

September, the first month of the autumn, in Cottonton, is still a hot month, with average temperature ranging between max 86.5°F (30.3°C) and min 68.2°F (20.1°C).

Temperature

In Cottonton, the average high-temperature is almost the same as in August - a still hot 86.5°F (30.3°C). In September, the average low-temperature is 68.2°F (20.1°C).

Heat index

The average heat index is estimated at a torrid 96.4°F (35.8°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'real feel', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, differences in body mass, height, and shape, clothing). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In September, the average relative humidity is 70%.

Rainfall

The month with the least rainfall in Cottonton is September when the rain falls for 14.6 days and typically collects 2.09" (53mm) of precipitation.

Snowfall

In Cottonton snow does not fall in April through December.

Daylight

The average length of the day in September is 12.3h.

Sunshine

In Cottonton, the average sunshine is 8.7h.

UV index

In Cottonton, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Cottonton?

In Cottonton, Alabama, in September, the average high-temperature is 86.5°F (30.3°C), and the average low-temperature is 68.2°F (20.1°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), that combines air temperature and relative humidity, is appraised at 96.4°F (35.8°C).

What is the average humidity in September in Cottonton?

The average relative humidity in September in Cottonton, Alabama, is 70%.

How much does it rain in Cottonton in September?

In Cottonton, in September, during 14.6 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

What is the driest month in Cottonton?

The month with the least rainfall in Cottonton is September when the rain falls for 14.6 days and typically collects 2.09" (53mm) of precipitation.

When it does not snow in Cottonton?

April through December are months without snowfall.

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

In September, the average length of the day is 12.3h.

How long on average sun shines in September in Cottonton?

The average sunshine in September in Cottonton is 8.7h.

How high is the UV index in September in Cottonton?

In September, the average daily maximum UV index in Cottonton is 6. A UV Index estimate of 6 to 7 represents a high health threat from unsafe exposure to the Sun's UV rays.
Average temperature in September - Cottonton, AL
  • Average high temperature in September: 86.5°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 (55.6°F).

  • Average low temperature in September: 68.2°F

The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (39°F).

Average pressure in September - Cottonton, AL
  • Average pressure in September: 30"

The month with the highest atmospheric pressure is January (30.16").
Months with the lowest atmospheric pressure are June and August (29.98").

Average wind speed in September - Cottonton, AL
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in September - Cottonton, AL
  • Average humidity in September: 70%

The month with the highest relative humidity is December (76%).
Months with the lowest relative humidity are April, May and October (69%).

Average rainfall in September - Cottonton, AL
  • Average rainfall in September: 2.09"

The wettest month (with the highest rainfall) is August (4.37").
The driest month (with the least rainfall) is September (2.09").

Average rainfall days in September - Cottonton, AL
  • Average rainfall days in September: 14.6 days

The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (7.9 days).

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

The month with the highest snowfall is February (0.24").
Months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September - Cottonton, AL
  • Average snowfall days in September: 0 days

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

Average daylight in September / Average sunshine in September - Cottonton, AL
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 14.2h).
The month with the shortest days is December (Average daylight: 10.1h).

  • Average sunshine in September: 8.7h

The month with the most sunshine is June (Average sunshine: 10.6h).
The month with the least sunshine is December (Average sunshine: 5.2h).

Average sunshine days in September - Cottonton, AL
  • Average sunshine days in September: 12.8 days

The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (6.6 days).

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

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

Average cloud cover in September - Cottonton, AL
  • Average cloud cover in September: 30

The month with the most cloud cover is December (Cloud cover 44).
Months with the least cloud cover are May and October (Cloud cover 29).

Average visibility in September - Cottonton, AL
  • Average visibility in September: 6mi

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