September weather forecast and climate
Carr Mill, AL

The first month of the autumn, September, is still a warm month in Carr Mill, Alabama, with average temperature fluctuating between 64.2°F (17.9°C) and 84.2°F (29°C).

Temperature

In September, the average high-temperature is practically the same as in August - a moderately hot 84.2°F (29°C). The average low-temperature, in Carr Mill, is 64.2°F (17.9°C).

Heat index

The average heat index in September is evaluated at a hot 92.3°F (33.5°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. 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 'feels like', 'apparent temperature', 'felt air temperature', or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, pregnancy, differences in body mass, height, and shape). 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.

Humidity

In Carr Mill, the average relative humidity is 74%.

Rainfall

In Carr Mill, during September, the rain falls for 14.5 days and regularly aggregates up to 2.6" (66mm) of precipitation. Throughout the year, there are 184.4 rainfall days, and 42.17" (1071mm) of precipitation is accumulated.

Snowfall

In Carr Mill snow does not fall in April through November.

Daylight

In September, the average length of the day in Carr Mill is 12.4h.

Sunshine

The average sunshine in Carr Mill, Alabama, is 8.6h.

UV index

The average daily maximum UV index in Carr Mill is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Carr Mill?

The average high-temperature, in September, in Carr Mill, Alabama, is 84.2°F (29°C), while the average low-temperature is 64.2°F (17.9°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that combines both air temperature and relative humidity, is calculated to 92.3°F (33.5°C).

What is the average humidity in September in Carr Mill?

In September, the average relative humidity is 74%.

How many days does it rain in September in Carr Mill?

In Carr Mill, during September, the rain falls for 14.5 days and regularly aggregates up to 2.6" (66mm) of precipitation.

When it does not snow in Carr Mill?

In Carr Mill, Alabama, snow does not fall in April through November.

What is the average length of the day in September in Carr Mill?

The average length of the day in September in Carr Mill is 12.4h.

How many hours of sunshine does Carr Mill have in September?

The average sunshine in September in Carr Mill, Alabama, is 8.6h.

How high is the UV index in September in Carr Mill?

In Carr Mill, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV rays.
Average temperature in September - Carr Mill, AL
  • Average high temperature in September: 84.2°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (50.7°F).

  • Average low temperature in September: 64.2°F

Months with the highest average low temperature are July and August (69.4°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

Average pressure in September - Carr Mill, AL
  • Average pressure in September: 30.01"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.98").

Average wind speed in September - Carr Mill, AL
  • Average wind speed in September: 4.8mph

The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).

Average humidity in September - Carr Mill, AL
  • Average humidity in September: 74%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (73%).

Average rainfall in September - Carr Mill, AL
  • Average rainfall in September: 2.6"

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

Average rainfall days in September - Carr Mill, AL
  • Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is July (24 days).
The month with the least rainy days is November (8.3 days).

Average snowfall in September - Carr Mill, AL
  • Average snowfall in September: 0"

The month with the highest snowfall is December (0.67").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September - Carr Mill, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (1.4 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September / Average sunshine in September - Carr Mill, AL
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in September: 8.6h

The month with the most sunshine is June (Average sunshine: 10.5h).
Months with the least sunshine are February and December (Average sunshine: 4.9).

Average sunshine days in September - Carr Mill, AL
  • Average sunshine days in September: 13.1 days

Months with the most sunshine days are October and November (19.7 days).
The month with the least sunshine days is July (5.6 days).

Average UV index in September - Carr Mill, AL
  • Average UV index in September: 5

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in September - Carr Mill, AL
  • Average cloud cover in September: 31

Months with the most cloud cover are February and December (Cloud cover 47).
Months with the least cloud cover are June, September and October (Cloud cover 31).

Average visibility in September - Carr Mill, AL
  • Average visibility in September: 6mi

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