September weather forecast and climate
Estillfork, AL

The first month of the autumn, September, is also a moderately hot month in Estillfork, Alabama, with average temperature fluctuating between 60.6°F (15.9°C) and 81°F (27.2°C).

Temperature

In Estillfork, the average high-temperature is practically the same as in August - a still warm 81°F (27.2°C). The average low-temperature, in September, is 60.6°F (15.9°C).

Heat index

In September, the average heat index is evaluated at 85.8°F (29.9°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
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 'apparent temperature', 'feels like', 'felt air temperature', or 'real feel', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like pregnancy, differences in body mass, height, and shape, metabolic differences, 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.

Humidity

The average relative humidity in September is 77%.

Rainfall

In Estillfork, it is raining for 14.7 days, with typically 2.87" (73mm) of accumulated precipitation. Throughout the year, there are 186.5 rainfall days, and 45.31" (1151mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Estillfork.

Daylight

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

Sunshine

In Estillfork, Alabama, the average sunshine in September is 8.3h.

UV index

The average daily maximum UV index in Estillfork is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV rays for the average person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Estillfork?

In Estillfork, Alabama, in September, the average high-temperature is 81°F (27.2°C), and the average low-temperature is 60.6°F (15.9°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), that factores the actual air temperature with the relative humidity, is calculated to 85.8°F (29.9°C).

What is the average humidity in September in Estillfork?

The average relative humidity in September in Estillfork is 77%.

How many days does it rain in September in Estillfork?

In Estillfork, Alabama, during September, the rain falls for 14.7 days and regularly aggregates up to 2.87" (73mm) of precipitation.

When it does not snow in Estillfork?

In Estillfork, Alabama, snow does not fall in May through October.

How many hours of daylight does Estillfork have in September?

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

How many hours of sunshine does Estillfork have in September?

In September, the average sunshine in Estillfork, Alabama, is 8.3h.

What is the UV index reading in September in Estillfork?

In September, the average daily maximum UV index in Estillfork is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to the UV radiation.
Average temperature in September - Estillfork, AL
  • Average high temperature in September: 81°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (46.2°F).

  • Average low temperature in September: 60.6°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).

Average pressure in September - Estillfork, AL
  • Average pressure in September: 30.03"

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 - Estillfork, AL
  • Average wind speed in September: 4.4mph

The windiest month (with the highest average wind speed) is February (7mph).
The calmest months (with the lowest average wind speed) are July and August (4mph).

Average humidity in September - Estillfork, AL
  • Average humidity in September: 77%

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (75%).

Average rainfall in September - Estillfork, AL
  • Average rainfall in September: 2.87"

The wettest month (with the highest rainfall) is July (4.76").
The driest month (with the least rainfall) is November (2.68").

Average rainfall days in September - Estillfork, AL
  • Average rainfall days in September: 14.7 days

The month with the highest number of rainy days is July (21.6 days).
The month with the least rainy days is November (9.8 days).

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

The month with the highest snowfall is January (0.55").
Months with the least snowfall are May, June, July, August, September and October (0").

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

Months with the highest number of snowfall days are January and February (2.3 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Estillfork, AL
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in September: 8.3h

The month with the most sunshine is June (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 4.5h).

Average sunshine days in September - Estillfork, AL
  • Average sunshine days in September: 13.7 days

The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is July (7.7 days).

Average UV index in September - Estillfork, 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 - Estillfork, AL
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 32).

Average visibility in September - Estillfork, AL
  • Average visibility in September: 5mi

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