September weather forecast
Bibb Mill, AL

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Weather in September

The first month of the autumn, September, is still a warm month in Bibb Mill, Alabama, with an average temperature fluctuating between 66.4°F (19.1°C) and 85.5°F (29.7°C).

Temperature

Bibb Mill records an average high-temperature of a warm 85.5°F (29.7°C) as September arrives, nearly mirroring the previous month's climate. Bibb Mill experiences an average temperature drop to a comfortable 66.4°F (19.1°C) during September nights.

Heat index

Throughout September, the heat index is evaluated at a very hot 95°F (35°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

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

Rainfall

September is the month with the least rainfall. Rain falls for 11.4 days and accumulates 0.98" (25mm) of precipitation.

Snowfall

March through November are months without snowfall in Bibb Mill.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:22 am and sunset at 7:12 pm. On the last day of September, in Bibb Mill, sunrise is at 6:41 am and sunset at 6:33 pm CDT.

Sunshine

The average sunshine in September is 9h.

UV index

The average daily maximum UV index in September in Bibb Mill is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 5 during September leads to these advisories:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.

Frequently asked questions

How hot is September?

The high-temperature, in September, in Bibb Mill, is 85.5°F (29.7°C), while the low-temperature averages to 66.4°F (19.1°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is evaluated at 95°F (35°C).

What is the average humidity in September?

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

What is the driest month?

September is the month with the least rainfall in Bibb Mill. Rain falls for 11.4 days and accumulates 0.98" (25mm) of precipitation.

How much does it rain in September?

In Bibb Mill, in September, during 11.4 rainfall days, 0.98" (25mm) of precipitation is typically accumulated.

When it does not snow?

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

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

In September, the average day length is 12h and 22min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:22 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:33 pm CDT.

How long on average sun shines in September?

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

How high is the UV index in September?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe 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
Bibb Mill, AL

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

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

Average wind speed in September
Bibb Mill, AL

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

The month with the highest snowfall is February (0.12").
The 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 - Bibb Mill, AL
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (0.8 days).
The 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 / Average sunshine in September - Bibb Mill, AL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).

Average sunshine days in September
Bibb Mill, AL

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

The months with the highest UV index are June and July (UV index 7).
The 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 - Bibb Mill, AL
  • Average cloud cover in September: 29

The 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 - Bibb Mill, 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).

Bibb Mill, Alabama, USA

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