September weather forecast and climate
Arlington, AL

September, the first month of the autumn, in Arlington, is still a tropical month, with temperature in the range of an average high of 88.3°F (31.3°C) and an average low of 67.5°F (19.7°C).

Temperature

In Arlington, the average high-temperature is relatively the same as in August - a still tropical 88.3°F (31.3°C). In Arlington, the average low-temperature is 67.5°F (19.7°C).

Heat index

In September, the average heat index is estimated at a sweltering 102.9°F (39.4°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
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 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like activity, metabolic differences, differences in body mass, height, and shape, and pregnancy 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.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Arlington, the average relative humidity is 73%.

Rainfall

In Arlington, during 15.7 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. Throughout the year, there are 171.5 rainfall days, and 35.47" (901mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Daylight

In September, the average length of the day is 12.3h.

Sunshine

The average sunshine in September is 8.8h.

UV index

In September, the average daily maximum UV index in Arlington, Alabama, is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 6 in September interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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 Arlington?

In Arlington, Alabama, in September, the average high-temperature is 88.3°F (31.3°C), and the average low-temperature is 67.5°F (19.7°C). The average heat index (a.k.a. 'feels like', 'real feel'), that combines air temperature and relative humidity, in September is estimated at 102.9°F (39.4°C).

What is the average humidity in September in Arlington?

In September, the average relative humidity in Arlington, Alabama, is 73%.

How much does it rain in Arlington in September?

In September, the rain falls for 15.7 days. Throughout September, 2.44" (62mm) of precipitation is accumulated.

When it does not snow in Arlington?

April through November are months without snowfall in Arlington.

What is the average length of the day in September in Arlington?

In Arlington, Alabama, the average length of the day in September is 12.3h.

How many hours of sunshine does Arlington have in September?

In Arlington, the average sunshine in September is 8.8h.

What is the UV index reading in September in Arlington?

In Arlington, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to the UV radiation.
Average temperature in September - Arlington, AL
  • Average high temperature in September: 88.3°F

The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (55.9°F).

  • Average low temperature in September: 67.5°F

Months with the highest average low temperature are July and August (72.1°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).

Average pressure in September - Arlington, AL
  • Average pressure in September: 29.99"

The month with the highest atmospheric pressure is January (30.16").
Months with the lowest atmospheric pressure are June and August (29.97").

Average wind speed in September - Arlington, AL
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is February (6.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in September - Arlington, AL
  • Average humidity in September: 73%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (70%).

Average rainfall in September - Arlington, AL
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is November (1.93").

Average rainfall days in September - Arlington, AL
  • Average rainfall days in September: 15.7 days

The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is November (8.3 days).

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

The month with the highest snowfall is March (0.31").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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

The month with the highest number of snowfall days is January (0.6 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September / Average sunshine in September - Arlington, AL
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 14.2h).
The month with the shortest days is December (Average daylight: 10.1h).

  • Average sunshine in September: 8.8h

The month with the most sunshine is June (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.9h).

Average sunshine days in September - Arlington, AL
  • Average sunshine days in September: 12.7 days

Months with the most sunshine days are October and November (20.5 days).
The month with the least sunshine days is July (6.6 days).

Average UV index in September - Arlington, AL
  • Average UV index in September: 6

Months with the highest UV index are June, July and August (UV index 7).
Months with the lowest UV index are January and December (UV index 3).

Average cloud cover in September - Arlington, AL
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 31).

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

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