September weather forecast and climate
Carlton, AL

September, the first month of the autumn, in Carlton, is still a hot month, with average temperature varying between 88.5°F (31.4°C) and 68°F (20°C).

Temperature

In Carlton, the average high-temperature in September is practically the same as in August - a still tropical 88.5°F (31.4°C). The average low-temperature, in Carlton, is 68°F (20°C).

Heat index

The average heat index is calculated to an extremely hot 104.7°F (40.4°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'apparent temperature', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, wind, clothing). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index 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 normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

The average relative humidity in September is 75%.

Rainfall

In Carlton, during September, the rain falls for 16.5 days and regularly aggregates up to 2.4" (61mm) of precipitation. In Carlton, during the entire year, the rain falls for 173.9 days and collects up to 35.63" (905mm) of precipitation.

Snowfall

April through November are months without snowfall in Carlton, Alabama.

Daylight

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

Sunshine

In September, the average sunshine is 8.8h.

UV index

In Carlton, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in September in Carlton?

In Carlton, Alabama, in September, the average high-temperature is 88.5°F (31.4°C), and the average low-temperature is 68°F (20°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), that combines relative humidity and air temperature, in September is calculated to 104.7°F (40.4°C).

What is the average humidity in September in Carlton?

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

How much does it rain in Carlton in September?

In Carlton, in September, it is raining for 16.5 days, with typically 2.4" (61mm) of accumulated precipitation.

When it does not snow in Carlton?

In Carlton snow does not fall in April through November.

How many hours of daylight does Carlton have in September?

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

How many hours of sunshine does Carlton have in September?

The average sunshine in September is 8.8h.

What is the UV index reading in September in Carlton?

In Carlton, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in September - Carlton, AL
  • Average high temperature in September: 88.5°F

The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in September: 68°F

The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).

Average pressure in September - Carlton, AL
  • Average pressure in September: 29.98"

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

Average wind speed in September - Carlton, AL
  • Average wind speed in September: 4.4mph

The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).

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

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September - Carlton, AL
  • Average rainfall in September: 2.4"

The wettest month (with the highest rainfall) is July (4.41").
The driest month (with the least rainfall) is November (2.05").

Average rainfall days in September - Carlton, AL
  • Average rainfall days in September: 16.5 days

The month with the highest number of rainy days is July (24.7 days).
The month with the least rainy days is November (8 days).

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

The month with the highest snowfall is January (0.16").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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

The month with the highest number of snowfall days is January (0.5 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 - Carlton, 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: 8.8h

The month with the most sunshine is June (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 5h).

Average sunshine days in September - Carlton, AL
  • Average sunshine days in September: 11.5 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (4.4 days).

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

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

Average cloud cover in September - Carlton, AL
  • Average cloud cover in September: 34

The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 31).

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

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