September weather forecast and climate
Avon, AL

The first month of the autumn, September, is also a hot month in Avon, Alabama, with average temperature ranging between max 86.9°F (30.5°C) and min 69.6°F (20.9°C).

Temperature

In Avon, the average high-temperature is practically the same as in August - a still hot 86.9°F (30.5°C). In September, the average low-temperature is 69.6°F (20.9°C).

Heat index

In September, the average heat index is appraised at a very hot 99.3°F (37.4°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. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'apparent temperature', 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, metabolic differences, 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 especially crucial for babies and toddlers. 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. 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 Avon, the average relative humidity is 74%.

Rainfall

In Avon, it is raining for 15.7 days, with typically 1.85" (47mm) of accumulated precipitation. In Avon, during the entire year, the rain falls for 161.4 days and collects up to 28.43" (722mm) of precipitation.

Snowfall

February through December are months without snowfall in Avon.

Daylight

The average length of the day in Avon is 12.3h.

Sunshine

The average sunshine in Avon, Alabama, is 8.9h.

UV index

In Avon, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 6 in September transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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 Avon?

The average high-temperature, in September, is 86.9°F (30.5°C), while the average low-temperature is 69.6°F (20.9°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), that factores the actual air temperature with the relative humidity, in September is calculated to 99.3°F (37.4°C).

What is the average humidity in September in Avon?

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

How many days does it rain in September in Avon?

In Avon, in September, during 15.7 rainfall days, 1.85" (47mm) of precipitation is typically accumulated.

When it does not snow in Avon?

In Avon, Alabama, snow does not fall in February through December.

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

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

How many hours of sunshine does Avon have in September?

The average sunshine in September in Avon is 8.9h.

How high is the UV index in September in Avon?

In September, the average daily maximum UV index in Avon, Alabama, is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to the UV radiation.
Average temperature in September - Avon, AL
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (59°F).

  • Average low temperature in September: 69.6°F

The month with the highest average low temperature is August (73.8°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).

Average pressure in September - Avon, 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 (29.98").

Average wind speed in September - Avon, AL
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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

Months with the highest relative humidity are August and December (76%).
Months with the lowest relative humidity are May and October (69%).

Average rainfall in September - Avon, AL
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is August (4.25").
The driest month (with the least rainfall) is November (1.38").

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

The month with the highest number of rainy days is July (22.1 days).
The month with the least rainy days is November (7.5 days).

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

The month with the highest snowfall is January (0.08").
Months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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

The month with the highest number of snowfall days is January (0.3 days).
Months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in September / Average sunshine in September - Avon, 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: 10.2h).

  • Average sunshine in September: 8.9h

Months with the most sunshine are June and July (Average sunshine: 10.9h).
Months with the least sunshine are February and December (Average sunshine: 5.5).

Average sunshine days in September - Avon, AL
  • Average sunshine days in September: 12.5 days

The month with the most sunshine days is November (21 days).
The month with the least sunshine days is August (6.6 days).

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

Months with the highest UV index are May, 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 - Avon, AL
  • Average cloud cover in September: 29

Months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 26).

Average visibility in September - Avon, 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).