September weather forecast and climate
Clifty, AL

September, the first month of the autumn, in Clifty, is also a moderately hot month, with average temperature varying between 83.3°F (28.5°C) and 64°F (17.8°C).

Temperature

In September, the average high-temperature is almost the same as in August - a moderately hot 83.3°F (28.5°C). In September, the average low-temperature is 64°F (17.8°C).

Heat index

In September, the average heat index is calculated to a hot 90.1°F (32.3°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. 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 'apparent temperature', 'felt air temperature', 'real feel', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, clothing, pregnancy), and activity. 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. 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 September, the average relative humidity in Clifty, Alabama, is 74%.

Rainfall

In Clifty, in September, it is raining for 13.7 days, with typically 2.48" (63mm) of accumulated precipitation. In Clifty, during the entire year, the rain falls for 173 days and collects up to 41.38" (1051mm) of precipitation.

Snowfall

In Clifty snow does not fall in April through October.

Daylight

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

Sunshine

In Clifty, the average sunshine is 8.8h.

UV index

In Clifty, Alabama, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 5 transform into the following instructions:
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 Clifty?

In September, in Clifty, Alabama, the average high-temperature is 83.3°F (28.5°C), and the average low-temperature is 64°F (17.8°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), that combines both air temperature and relative humidity, in September is estimated at 90.1°F (32.3°C).

What is the average humidity in September in Clifty?

In September, the average relative humidity in Clifty, Alabama, is 74%.

How much does it rain in Clifty in September?

In September, in Clifty, Alabama, the rain falls for 13.7 days. Throughout September, 2.48" (63mm) of precipitation is accumulated.

When it does not snow in Clifty?

In Clifty, Alabama, snow does not fall in April through October.

How many hours of daylight does Clifty have in September?

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

How long on average sun shines in September in Clifty?

The average sunshine in September in Clifty is 8.8h.

How high is the UV index in September in Clifty?

In Clifty, Alabama, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV rays.
Average temperature in September - Clifty, AL
  • Average high temperature in September: 83.3°F

The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (48.7°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 (33.6°F).

Average pressure in September - Clifty, AL
  • Average pressure in September: 30.02"

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 - Clifty, AL
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in September - Clifty, AL
  • Average humidity in September: 74%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September - Clifty, AL
  • Average rainfall in September: 2.48"

The wettest month (with the highest rainfall) is December (4.25").
The driest month (with the least rainfall) is November (2.24").

Average rainfall days in September - Clifty, AL
  • Average rainfall days in September: 13.7 days

The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (9.7 days).

Average snowfall in September - Clifty, AL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.79").
Months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September - Clifty, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.1 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 - Clifty, 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: 9.9h).

  • Average sunshine in September: 8.8h

The month with the most sunshine is June (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.6h).

Average sunshine days in September - Clifty, AL
  • Average sunshine days in September: 14.4 days

The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is July (9.3 days).

Average UV index in September - Clifty, AL
  • Average UV index in September: 5

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

Average cloud cover in September - Clifty, AL
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in September - Clifty, 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).