September weather forecast and climate
Allison Mills, AL

September, the first month of the autumn, in Allison Mills, is still a warm month, with average temperature fluctuating between 84.6°F (29.2°C) and 64°F (17.8°C).

Temperature

In Allison Mills, Alabama, the average high-temperature in September is almost the same as in August - a warm 84.6°F (29.2°C). In September, the average low-temperature is 64°F (17.8°C).

Heat index

The average heat index in September is calculated to a hot 93.2°F (34°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
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 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like activity, pregnancy, clothing, and metabolic differences 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 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.

Humidity

The average relative humidity in Allison Mills is 74%.

Rainfall

In Allison Mills, Alabama, in September, during 14 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. In Allison Mills, during the entire year, the rain falls for 176.1 days and collects up to 38.11" (968mm) of precipitation.

Snowfall

In Allison Mills snow does not fall in March through November.

Daylight

In Allison Mills, the average length of the day in September is 12.4h.

Sunshine

In September, the average sunshine in Allison Mills is 8.6h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 Allison Mills?

In Allison Mills, Alabama, in September, the average high-temperature is 84.6°F (29.2°C), and the average low-temperature is 64°F (17.8°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), that combines both air temperature and relative humidity, is evaluated at 93.2°F (34°C).

What is the average humidity in September in Allison Mills?

The average relative humidity in September in Allison Mills is 74%.

How many days does it rain in September in Allison Mills?

In Allison Mills, in September, it is raining for 14 days, with typically 2.48" (63mm) of accumulated precipitation.

When it does not snow in Allison Mills?

March through November are months without snowfall in Allison Mills, Alabama.

How many hours of daylight does Allison Mills have in September?

The average length of the day in September is 12.4h.

How many hours of sunshine does Allison Mills have in September?

The average sunshine in September in Allison Mills, Alabama, is 8.6h.

What is the UV index reading in September in Allison Mills?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV radiation.
Average temperature in September - Allison Mills, AL
  • Average high temperature in September: 84.6°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (50.9°F).

  • Average low temperature in September: 64°F

The month with the highest average low temperature is August (69.8°F).
The coldest month (with the lowest average low temperature) is January (35.1°F).

Average pressure in September - Allison Mills, AL
  • Average pressure in September: 30.01"

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 - Allison Mills, AL
  • Average wind speed in September: 4.6mph

The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).

Average humidity in September - Allison Mills, 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 - Allison Mills, AL
  • Average rainfall in September: 2.48"

The wettest month (with the highest rainfall) is August (3.78").
The driest month (with the least rainfall) is October (2.13").

Average rainfall days in September - Allison Mills, AL
  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is July (21.5 days).
The month with the least rainy days is November (8.6 days).

Average snowfall in September - Allison Mills, AL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.87").
Months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September - Allison Mills, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (1.4 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 - Allison Mills, 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: 8.6h

Months with the most sunshine are June and July (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.8h).

Average sunshine days in September - Allison Mills, AL
  • Average sunshine days in September: 13.3 days

Months with the most sunshine days are October and November (19.5 days).
The month with the least sunshine days is July (7.3 days).

Average UV index in September - Allison Mills, AL
  • Average UV index in September: 5

Months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in September - Allison Mills, AL
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 48).
Months with the least cloud cover are June, September and October (Cloud cover 31).

Average visibility in September - Allison Mills, 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).