September weather forecast and climate
Clayborn, AL

The first month of the autumn, September, is also a moderately hot month in Clayborn, Alabama, with temperature in the range of an average low of 63°F (17.2°C) and an average high of 82.4°F (28°C).

Temperature

In Clayborn, the average high-temperature in September is relatively the same as in August - a warm 82.4°F (28°C). In September, the average low-temperature is 63°F (17.2°C).

Heat index

The average heat index is estimated at a tropical 88.5°F (31.4°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', 'felt air temperature', 'feels like', or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, wind, differences in body mass, height, and shape), 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. 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

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

Rainfall

In Clayborn, in September, during 15 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. In Clayborn, during the entire year, the rain falls for 179.7 days and collects up to 41.89" (1064mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

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

Sunshine

In Clayborn, the average sunshine is 8.7h.

UV index

In Clayborn, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. 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 Clayborn?

The average high-temperature, in September, in Clayborn, is 82.4°F (28°C), while the average low-temperature is 63°F (17.2°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), that combines relative humidity and air temperature, is evaluated at 88.5°F (31.4°C).

What is the average humidity in September in Clayborn?

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

How many days does it rain in September in Clayborn?

In September, in Clayborn, the rain falls for 15 days. Throughout September, 2.56" (65mm) of precipitation is accumulated.

When it does not snow in Clayborn?

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

How many hours of daylight does Clayborn have in September?

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

How many hours of sunshine does Clayborn have in September?

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

How high is the UV index in September in Clayborn?

In September, the average daily maximum UV index in Clayborn, Alabama, is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in September - Clayborn, AL
  • Average high temperature in September: 82.4°F

The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (48.6°F).

  • Average low temperature in September: 63°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

Average pressure in September - Clayborn, 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 - Clayborn, AL
  • Average wind speed in September: 4.9mph

The windiest month (with the highest average wind speed) is February (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in September - Clayborn, AL
  • Average humidity in September: 75%

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (74%).

Average rainfall in September - Clayborn, AL
  • Average rainfall in September: 2.56"

The wettest month (with the highest rainfall) is December (4.45").
The driest month (with the least rainfall) is October (2.48").

Average rainfall days in September - Clayborn, AL
  • Average rainfall days in September: 15 days

The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is November (10.3 days).

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

The month with the highest snowfall is January (0.83").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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

The month with the highest number of snowfall days is February (1.9 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Clayborn, 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: 8.7h

The month with the most sunshine is June (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.7h).

Average sunshine days in September - Clayborn, 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 (8.6 days).

Average UV index in September - Clayborn, 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 - Clayborn, AL
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 49).
Months with the least cloud cover are June and September (Cloud cover 30).

Average visibility in September - Clayborn, 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).