Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Austell's weather, upon September's arrival, documents an average high-temperature of a warm 83.7°F (28.7°C), nearly identical to the prior month. An average low-temperature of 65.1°F (18.4°C) is observed during the September nights.Heat index
The heat index for September is evaluated at a tropical 89.6°F (32°C). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.Records show heat index calculations are tailored for shaded regions and mild winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
In Austell, the average relative humidity in September is 72%.Rainfall
In Austell, in September, during 13.3 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, in Austell, there are 178.7 rainfall days, and 41.5" (1054mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 7:12 am and sunset at 8:03 pm. On the last day of September, in Austell, sunrise is at 7:32 am and sunset at 7:23 pm EDT.
Sunshine
The average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 5 in September leads to these guidelines:
Be vigilant - A duty to shield skin and eyes from injury exists. When the Sun is at its strongest around midday, find shade and limit exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Austell?
What is the average humidity in September in Austell?
How much does it rain in Austell in September?
When it does not snow in Austell?
How many hours of daylight does Austell have in September?
When are sunrise and sunset in September in Austell?
How many hours of sunshine does Austell have in September?
What is the UV index intensity in September in Austell?
Average temperature in September
Austell, GA
- Average high temperature in September: 83.7°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (49.8°F).
- Average low temperature in September: 65.1°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).
Average pressure in September
Austell, GA
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Austell, GA
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in September
Austell, GA
- Average humidity in September: 72%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in September
Austell, GA
- Average rainfall in September: 2.8"
The wettest month (with the highest rainfall) is August (5.08").
The driest month (with the least rainfall) is October (2.17").
Average rainfall days in September
Austell, GA
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is July (22.1 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in September
Austell, GA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Austell, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Austell, GA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Austell, GA
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (7.6 days).
Average UV index in September
Austell, GA
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Austell, GA
- Average cloud cover in September: 31
The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Austell, GA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Austell, Georgia, USA
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