September weather forecast and climate
Addison, AL

The first month of the autumn, September, is also a moderately hot month in Addison, Alabama, with average temperature ranging between min 64°F (17.8°C) and max 83.5°F (28.6°C).

Temperature

In Addison, Alabama, the average high-temperature is almost the same as in August - a warm 83.5°F (28.6°C). The average low-temperature, in Addison, is 64°F (17.8°C).

Heat index

The average heat index is estimated at a tropical 90.7°F (32.6°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. Exposure to direct sunshine can increase heat index values 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 what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, metabolic differences, wind). 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

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

Rainfall

In Addison, it is raining for 14.4 days, with typically 2.64" (67mm) of accumulated precipitation. In Addison, during the entire year, the rain falls for 176.2 days and collects up to 40.43" (1027mm) of precipitation.

Snowfall

In Addison snow does not fall in April through October.

Daylight

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

Sunshine

In September, the average sunshine is 8.9h.

UV index

In Addison, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Addison?

In Addison, in September, the average high-temperature is 83.5°F (28.6°C), and the average low-temperature is 64°F (17.8°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), that represents influence of the relative humidity to air temperaure, is estimated at 90.7°F (32.6°C).

What is the average humidity in September in Addison?

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

How much does it rain in Addison in September?

In Addison, during September, the rain falls for 14.4 days and regularly aggregates up to 2.64" (67mm) of precipitation.

When it does not snow in Addison?

In Addison snow does not fall in April through October.

How many hours of daylight does Addison have in September?

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

How long on average sun shines in September in Addison?

In September, the average sunshine is 8.9h.

How high is the UV index in September in Addison?

In September, the average daily maximum UV index 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 - Addison, AL
  • Average high temperature in September: 83.5°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (48.9°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 (34°F).

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

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

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

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September - Addison, AL
  • Average rainfall in September: 2.64"

The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is November (2.36").

Average rainfall days in September - Addison, AL
  • Average rainfall days in September: 14.4 days

The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is November (10.1 days).

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

The month with the highest snowfall is January (0.67").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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

The month with the highest number of snowfall days is February (1.5 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 - Addison, 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: 8.9h

The month with the most sunshine is June (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.7h).

Average sunshine days in September - Addison, AL
  • Average sunshine days in September: 13.5 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 - Addison, 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 - Addison, 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 - Addison, 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).