September weather forecast and climate
Bibb Mill, AL

The first month of the autumn, September, is also a moderately hot month in Bibb Mill, Alabama, with average temperature varying between 66.4°F (19.1°C) and 85.5°F (29.7°C).

Temperature

In Bibb Mill, the average high-temperature is almost the same as in August - a moderately hot 85.5°F (29.7°C). The average low-temperature, in Bibb Mill, is 66.4°F (19.1°C).

Heat index

In September, the average heat index is evaluated at a hot 94.6°F (34.8°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. 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 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like clothing, metabolic differences, differences in body mass, height, and shape, and activity influence one's weather impression. 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. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Bibb Mill, Alabama, the average relative humidity is 72%.

Rainfall

The month with the least rainfall is September when the rain falls for 11.4 days and typically collects 0.98" (25mm) of precipitation.

Snowfall

In Bibb Mill snow does not fall in March through November.

Daylight

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

Sunshine

In Bibb Mill, the average sunshine in September is 9h.

UV index

In Bibb Mill, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Bibb Mill?

The average high-temperature, in September, is 85.5°F (29.7°C), while the average low-temperature is 66.4°F (19.1°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), that factores the actual air temperature with the relative humidity, is appraised at 94.6°F (34.8°C).

What is the average humidity in September in Bibb Mill?

In September, the average relative humidity is 72%.

How much does it rain in Bibb Mill in September?

In September, the rain falls for 11.4 days. Throughout September, 0.98" (25mm) of precipitation is accumulated.

What is the driest month in Bibb Mill?

The month with the least rainfall in Bibb Mill, Alabama, is September when the rain falls for 11.4 days and typically collects 0.98" (25mm) of precipitation.

When it does not snow in Bibb Mill?

March through November are months without snowfall.

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

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

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

In September, the average sunshine is 9h.

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

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to the Sun's UV rays.
Average temperature in September - Bibb Mill, AL
  • Average high temperature in September: 85.5°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (52.3°F).

  • Average low temperature in September: 66.4°F

Months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (36.3°F).

Average pressure in September - Bibb Mill, AL
  • Average pressure in September: 30"

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

Average wind speed in September - Bibb Mill, AL
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in September - Bibb Mill, AL
  • Average humidity in September: 72%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September - Bibb Mill, AL
  • Average rainfall in September: 0.98"

The wettest month (with the highest rainfall) is August (2.17").
The driest month (with the least rainfall) is September (0.98").

Average rainfall days in September - Bibb Mill, AL
  • Average rainfall days in September: 11.4 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (6.8 days).

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

The month with the highest snowfall is February (0.12").
Months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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

Months with the highest number of snowfall days are January and February (0.8 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September / Average sunshine in September - Bibb 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: 9h

The month with the most sunshine is June (Average sunshine: 10.6h).
Months with the least sunshine are February and December (Average sunshine: 4.9).

Average sunshine days in September - Bibb Mill, AL
  • Average sunshine days in September: 16.2 days

The month with the most sunshine days is October (22.2 days).
The month with the least sunshine days is July (10.3 days).

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

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

Average cloud cover in September - Bibb Mill, AL
  • Average cloud cover in September: 29

Months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is September (Cloud cover 29).

Average visibility in September - Bibb Mill, 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).