September weather forecast and climate
Bookers Mill, AL

The first month of the autumn, September, is still a hot month in Bookers Mill, Alabama, with average temperature ranging between max 87.4°F (30.8°C) and min 68°F (20°C).

Temperature

In September, the average high-temperature is essentially the same as in August - a still hot 87.4°F (30.8°C). In Bookers Mill, in September, the average low-temperature is 68°F (20°C).

Heat index

The average heat index in September is appraised at a torrid 101.5°F (38.6°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
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', 'felt air temperature', 'apparent temperature', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like wind, clothing, 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 especially crucial for babies and toddlers. 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.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In September, the average relative humidity in Bookers Mill is 75%.

Rainfall

In September, in Bookers Mill, the rain falls for 16.6 days. Throughout September, 2.72" (69mm) of precipitation is accumulated. In Bookers Mill, during the entire year, the rain falls for 176.5 days and collects up to 37.72" (958mm) of precipitation.

Snowfall

April through November are months without snowfall in Bookers Mill.

Daylight

The average length of the day in September is 12.3h.

Sunshine

In Bookers Mill, Alabama, the average sunshine is 8.8h.

UV index

The average daily maximum UV index in Bookers Mill is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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 Bookers Mill?

In September, the average high-temperature is 87.4°F (30.8°C), and the average low-temperature is 68°F (20°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that factores the actual air temperature with the relative humidity, is evaluated at 101.5°F (38.6°C).

What is the average humidity in September in Bookers Mill?

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

How much does it rain in Bookers Mill in September?

In Bookers Mill, during September, the rain falls for 16.6 days and regularly aggregates up to 2.72" (69mm) of precipitation.

When it does not snow in Bookers Mill?

In Bookers Mill, Alabama, snow does not fall in April through November.

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

The average length of the day in September in Bookers Mill, Alabama, is 12.3h.

How long on average sun shines in September in Bookers Mill?

In September, the average sunshine is 8.8h.

What is the UV index intensity in September in Bookers Mill?

In Bookers Mill, Alabama, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV rays.
Average temperature in September - Bookers Mill, AL
  • Average high temperature in September: 87.4°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (57.6°F).

  • Average low temperature in September: 68°F

Months with the highest average low temperature are July and August (72.3°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).

Average pressure in September - Bookers Mill, AL
  • Average pressure in September: 29.98"

The month with the highest atmospheric pressure is January (30.16").
Months with the lowest atmospheric pressure are June and August (29.97").

Average wind speed in September - Bookers Mill, AL
  • Average wind speed in September: 4.7mph

The windiest month (with the highest average wind speed) is March (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).

Average humidity in September - Bookers Mill, AL
  • Average humidity in September: 75%

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

Average rainfall in September - Bookers Mill, AL
  • Average rainfall in September: 2.72"

The wettest month (with the highest rainfall) is August (4.72").
The driest month (with the least rainfall) is November (2.13").

Average rainfall days in September - Bookers Mill, AL
  • Average rainfall days in September: 16.6 days

The month with the highest number of rainy days is July (23.9 days).
The month with the least rainy days is November (7.6 days).

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

The month with the highest snowfall is January (0.28").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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

The month with the highest number of snowfall days is January (0.5 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 - Bookers Mill, AL
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 14.2h).
The month with the shortest days is December (Average daylight: 10.1h).

  • Average sunshine in September: 8.8h

The month with the most sunshine is June (Average sunshine: 10.6h).
The month with the least sunshine is December (Average sunshine: 5h).

Average sunshine days in September - Bookers Mill, AL
  • Average sunshine days in September: 11.4 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is July (5.1 days).

Average UV index in September - Bookers Mill, AL
  • Average UV index in September: 6

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

Average cloud cover in September - Bookers Mill, AL
  • Average cloud cover in September: 33

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 30).

Average visibility in September - Bookers Mill, AL
  • Average visibility in September: 5mi

Months with the highest visibility are June and October (6mi).
Months with the lowest visibility are January, February, March, April, May, July, August, September, November and December (5mi).