September weather forecast and climate
Adler, AL

September, the first month of the autumn, in Adler, is also a hot month, with temperature in the range of an average low of 66.9°F (19.4°C) and an average high of 86.5°F (30.3°C).

Temperature

In September, the average high-temperature is relatively the same as in August - a still tropical 86.5°F (30.3°C). In Adler, in September, the average low-temperature is 66.9°F (19.4°C).

Heat index

The average heat index is evaluated at a torrid 97.3°F (36.3°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
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 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, metabolic differences, clothing), 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.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

The average relative humidity in September is 72%.

Rainfall

September is the month with the least rainfall in Adler. Rain falls for 9.8 days and accumulates 0.59" (15mm) of precipitation.

Snowfall

In Adler snow does not fall in March through November.

Daylight

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

Sunshine

In September, the average sunshine in Adler is 9.1h.

UV index

The average daily maximum UV index in Adler is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 6 in September transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Adler?

The average high-temperature, in September, in Adler, is 86.5°F (30.3°C), while the average low-temperature is 66.9°F (19.4°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that factores the actual air temperature with the relative humidity, in September is evaluated at 97.3°F (36.3°C).

What is the average humidity in September in Adler?

The average relative humidity in September in Adler is 72%.

How much does it rain in Adler in September?

In Adler, Alabama, in September, it is raining for 9.8 days, with typically 0.59" (15mm) of accumulated precipitation.

What is the driest month in Adler?

The month with the least rainfall in Adler is September when the rain falls for 9.8 days and typically collects 0.59" (15mm) of precipitation.

When it does not snow in Adler?

In Adler snow does not fall in March through November.

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

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

How long on average sun shines in September in Adler?

In Adler, Alabama, the average sunshine in September is 9.1h.

How high is the UV index in September in Adler?

In September, the average daily maximum UV index in Adler, Alabama, is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from the exposure to the Sun's UV radiation.
Average temperature in September - Adler, AL
  • Average high temperature in September: 86.5°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (52.7°F).

  • Average low temperature in September: 66.9°F

The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (37.2°F).

Average pressure in September - Adler, AL
  • Average pressure in September: 30"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.97").

Average wind speed in September - Adler, AL
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in September - Adler, AL
  • Average humidity in September: 72%

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

Average rainfall in September - Adler, AL
  • Average rainfall in September: 0.59"

The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is September (0.59").

Average rainfall days in September - Adler, AL
  • Average rainfall days in September: 9.8 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (6 days).

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

Months with the highest snowfall are January and February (0.12").
Months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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

Months with the highest number of snowfall days are January and February (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 - Adler, AL
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in September: 9.1h

The month with the most sunshine is June (Average sunshine: 10.7h).
Months with the least sunshine are February and December (Average sunshine: 4.9).

Average sunshine days in September - Adler, AL
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is October (23.3 days).
The month with the least sunshine days is July (10 days).

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

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

Average cloud cover in September - Adler, AL
  • Average cloud cover in September: 30

Months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in September - Adler, 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).