September weather forecast and climate
Coal City, AL

September, the first month of the autumn, in Coal City, is also a moderately hot month, with average temperature varying between 64°F (17.8°C) and 84.6°F (29.2°C).

Temperature

In September, the average high-temperature is almost the same as in August - a moderately hot 84.6°F (29.2°C). In Coal City, the average low-temperature is 64°F (17.8°C).

Heat index

The average heat index in September is appraised at a tropical 93.2°F (34°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. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'feels like', or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like differences in body mass, height, and shape, pregnancy, clothing, and activity influence one's weather impression. 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 Coal City, the average relative humidity in September is 74%.

Rainfall

In Coal City, Alabama, during 14.5 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Coal City, during the entire year, the rain falls for 184.1 days and collects up to 41.97" (1066mm) of precipitation.

Snowfall

March through November are months without snowfall in Coal City.

Daylight

In Coal City, the average length of the day is 12.4h.

Sunshine

In Coal City, the average sunshine is 8.7h.

UV index

In Coal City, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions - Protection against sun damage is advised. 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 Coal City?

The average high-temperature, in September, in Coal City, Alabama, is 84.6°F (29.2°C), while the average low-temperature is 64°F (17.8°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), that represents influence of the relative humidity to air temperaure, is evaluated at 93.2°F (34°C).

What is the average humidity in September in Coal City?

The average relative humidity in September is 74%.

How many days does it rain in September in Coal City?

In Coal City, in September, it is raining for 14.5 days, with typically 2.64" (67mm) of accumulated precipitation.

When it does not snow in Coal City?

March through November are months without snowfall in Coal City, Alabama.

What is the average length of the day in September in Coal City?

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

How long on average sun shines in September in Coal City?

In Coal City, Alabama, the average sunshine in September is 8.7h.

How high is the UV index in September in Coal City?

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

The warmest month (with the highest average high temperature) is July (90.1°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 July (69.6°F).
The coldest month (with the lowest average low temperature) is January (35.1°F).

Average pressure in September - Coal City, 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 - Coal City, AL
  • Average wind speed in September: 4.6mph

The windiest months (with the highest average wind speed) are January and February (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).

Average humidity in September - Coal City, 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 - Coal City, AL
  • Average rainfall in September: 2.64"

The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is October (2.32").

Average rainfall days in September - Coal City, AL
  • Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is July (22.4 days).
The month with the least rainy days is November (9.2 days).

Average snowfall in September - Coal City, AL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.91").
Months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September - Coal City, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.6 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 - Coal City, 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: 10h).

  • Average sunshine in September: 8.7h

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 - Coal City, AL
  • Average sunshine days in September: 12.9 days

The month with the most sunshine days is October (19 days).
The month with the least sunshine days is July (6.2 days).

Average UV index in September - Coal City, 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 December (UV index 2).

Average cloud cover in September - Coal City, AL
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 30).

Average visibility in September - Coal City, 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).