September weather forecast and climate
Black Bottom, AL

The first month of the autumn, September, is also a moderately hot month in Black Bottom, Alabama, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 83.5°F (28.6°C).

Temperature

In Black Bottom, the average high-temperature is essentially the same as in August - a warm 83.5°F (28.6°C). The average low-temperature, in Black Bottom, is 64°F (17.8°C).

Heat index

The average heat index is appraised at a hot 90.7°F (32.6°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like activity, wind, pregnancy, and differences in body mass, height, and shape affect individual temperature impact. 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 September, the average relative humidity in Black Bottom is 74%.

Rainfall

In Black Bottom, during September, the rain falls for 14.4 days and regularly aggregates up to 2.64" (67mm) of precipitation. In Black Bottom, during the entire year, the rain falls for 176.2 days and collects up to 40.43" (1027mm) of precipitation.

Snowfall

In Black Bottom snow does not fall in April through October.

Daylight

In Black Bottom, the average length of the day is 12.4h.

Sunshine

The average sunshine in Black Bottom is 8.9h.

UV index

In September, the average daily maximum UV index in Black Bottom is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Black Bottom?

The average high-temperature, in September, in Black Bottom, is 83.5°F (28.6°C), while the average low-temperature is 64°F (17.8°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), that combines air temperature and relative humidity, in September is calculated to 90.7°F (32.6°C).

What is the average humidity in September in Black Bottom?

The average relative humidity in September is 74%.

How much does it rain in Black Bottom in September?

In Black Bottom, in September, during 14.4 rainfall days, 2.64" (67mm) of precipitation is typically accumulated.

When it does not snow in Black Bottom?

April through October are months without snowfall in Black Bottom.

How many hours of daylight does Black Bottom have in September?

In September, the average length of the day in Black Bottom, Alabama, is 12.4h.

How long on average sun shines in September in Black Bottom?

In Black Bottom, Alabama, the average sunshine in September is 8.9h.

How high is the UV index in September in Black Bottom?

In Black Bottom, Alabama, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to the Sun's UV rays.
Average temperature in September - Black Bottom, AL
  • Average high temperature in September: 83.5°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 (48.9°F).

  • Average low temperature in September: 64°F

The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (34°F).

Average pressure in September - Black Bottom, AL
  • Average pressure in September: 30.02"

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 - Black Bottom, AL
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

Average humidity in September - Black Bottom, 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 (72%).

Average rainfall in September - Black Bottom, AL
  • Average rainfall in September: 2.64"

The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is November (2.36").

Average rainfall days in September - Black Bottom, AL
  • Average rainfall days in September: 14.4 days

The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is November (10.1 days).

Average snowfall in September - Black Bottom, AL
  • Average snowfall in September: 0"

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

Average snowfall days in September - Black Bottom, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.5 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 - Black Bottom, AL
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in September: 8.9h

The month with the most sunshine is June (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.7h).

Average sunshine days in September - Black Bottom, AL
  • Average sunshine days in September: 13.5 days

The month with the most sunshine days is October (19 days).
The month with the least sunshine days is July (8.6 days).

Average UV index in September - Black Bottom, 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 and December (UV index 2).

Average cloud cover in September - Black Bottom, AL
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 49).
Months with the least cloud cover are June and September (Cloud cover 30).

Average visibility in September - Black Bottom, 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).