September weather forecast
Anderson, AL

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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

Anderson experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a hot 87.6°F (30.9°C) in August to a warm 82.2°F (27.9°C). Anderson encounters a steady low-temperature average of 63.3°F (17.4°C) throughout the month of September.

Heat index

The average heat index in September is appraised at a tropical 87.8°F (31°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.

Humidity

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

Rainfall

In September, in Anderson, the rain falls for 13.3 days. Throughout September, 2.44" (62mm) of precipitation is accumulated. In Anderson, during the entire year, the rain falls for 164 days and collects up to 37.56" (954mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

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

Sunshine

In September, the average sunshine is 8.7h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Guard yourself - Avoiding sunburn is suggested. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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Frequently asked questions

What are the temperatures in Anderson in September?

The high-temperature, in September, in Anderson, records 82.2°F (27.9°C), while the low-temperature is 63.3°F (17.4°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is appraised at 87.8°F (31°C).

What is the average humidity in September in Anderson?

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

How much does it rain in Anderson in September?

In September, the rain falls for 13.3 days. Throughout September, 2.44" (62mm) of precipitation is accumulated.

When it does not snow in Anderson?

April through October are months without snowfall.

How many hours of daylight does Anderson have in September?

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

When is the sunrise / 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?

The average sunshine duration in September in Anderson is 8.7h.

How high is the UV index in September in Anderson?

In Anderson, Alabama, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
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
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 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 8h and 4min

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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Anderson, Alabama, USA

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