September weather forecast
Anderson, AL

Weather in September

September, the first month of the autumn in Anderson, is still a warm month, with an average temperature fluctuating between 82.2°F (27.9°C) and 63.3°F (17.4°C).

Temperature

In Anderson, the average high-temperature in September slightly decreases from a hot 87.6°F (30.9°C) in August to a warm 82.2°F (27.9°C). In September, the average low-temperature is 63.3°F (17.4°C).

Heat index

The average heat index in September is calculated to be a hot 87.8°F (31°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
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', 'apparent temperature', 'feels like', or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, differences in body mass, height, and shape, pregnancy). Be aware that direct exposure to sunlight increases heat impact and may raise the 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.

Humidity

In September, the average relative humidity is 75%.

Rainfall

In Anderson, Alabama, it is raining for 13.3 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, there are 164 rainfall days, and 37.56" (954mm) of precipitation is accumulated.

Snowfall

In Anderson, snow does not fall in April through October.

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of the month, sunrise is at 6:22 am and sunset at 7:15 pm. On the last day of September, sunrise is at 6:43 am and sunset at 6:34 pm CDT.

Sunshine

In September, the average sunshine in Anderson is 8.7h.

UV index

The average daily maximum UV index in September in Anderson is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. 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.
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FAQ

What is the temperature in September in Anderson?

The average high-temperature, in September, in Anderson, is 82.2°F (27.9°C), while the average low-temperature is 63.3°F (17.4°C). in September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is calculated to be 87.8°F (31°C).

What is the average humidity in September in Anderson?

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

How much does it rain in Anderson in September?

In Anderson, Alabama, in September, during 13.3 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

When it does not snow in Anderson?

April through October are months without snowfall in Anderson, Alabama.

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

In September, the average day length in Anderson, Alabama, is 12h and 23min.

What time are sunrise and sunset in September in Anderson?

On the first day of September in Anderson, sunrise is at 6:22 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:34 pm CDT.

How many hours of sunshine does Anderson have in September?

In September, the average sunshine duration in Anderson, Alabama, is 8.7h.

How high is the UV index in September in Anderson?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Anderson, AL

Average temperature in September - Anderson, AL
  • Average high temperature in September: 82.2°F

The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (46.6°F).

  • Average low temperature in September: 63.3°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

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Average pressure in September
Anderson, AL

Average pressure in September - Anderson, AL
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in September
Anderson, AL

Average wind speed in September - Anderson, AL
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is February (8.7mph).
The calmest month (with the lowest average wind speed) is July (4.9mph).

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Average humidity in September
Anderson, AL

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

The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in September
Anderson, AL

Average rainfall in September - Anderson, AL
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is February (4.25").
The driest month (with the least rainfall) is November (2.32").

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Average rainfall days in September
Anderson, AL

Average rainfall days in September - Anderson, AL
  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (9.3 days).

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Average snowfall in September
Anderson, AL

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

The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Anderson, AL

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

The months with the highest number of snowfall days are January and February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Anderson, AL
  • Average daylight in September: 12h and 23min

The month with the longest days is June (Average daylight: 14h and 28min).
The month with the shortest days is December (Average daylight: 9h and 52min).

  • Average sunshine in September: 8h and 42min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in September
Anderson, AL

Average sunshine days in September - Anderson, AL
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (9.4 days).

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Average UV index in September
Anderson, AL

Average UV index in September - Anderson, AL
  • Average UV index in September: 5

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Anderson, AL

Average cloud cover in September - Anderson, AL
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in September
Anderson, AL

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

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

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