September weather forecastSwanson Mill, GA
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Swanson Mill, Georgia, with temperature in the range of an average high of 82.6°F (28.1°C) and an average low of 61.3°F (16.3°C).Temperature
Swanson Mill's transition into September involves a gentle shift in temperature, receding from a tropical 88°F (31.1°C) in August to a moderately hot 82.6°F (28.1°C). During the month of September, Swanson Mill anticipates a mean low-temperature of 61.3°F (16.3°C).Heat index
Throughout September, the heat index is evaluated at a hot 89.6°F (32°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.Heat index values are typically calculated for conditions of shade and a light breeze. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
In Swanson Mill, the average relative humidity in September is 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.2 days and typically collects 2.52" (64mm) of precipitation.Snowfall
In Swanson Mill, snow does not fall in May through October.Daylight
In Swanson Mill, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 7:13 am and sunset at 8:06 pm. On the last day of September, sunrise is at 7:35 am and sunset at 7:25 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 health risk from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 5 during September translates into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Swanson Mill, GA
- Average high temperature in September: 82.6°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (46.9°F).
- Average low temperature in September: 61.3°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (31.8°F).
Average pressure in September
Swanson Mill, GA
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Swanson Mill, GA
- Average wind speed in September: 4.2mph
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 (3.9mph).
Average humidity in September
Swanson Mill, GA
- Average humidity in September: 75%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are August, October and November (74%).
Average rainfall in September
Swanson Mill, GA
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is July (4.06").
The driest month (with the least rainfall) is September (2.52").
Average rainfall days in September
Swanson Mill, GA
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in September
Swanson Mill, GA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Swanson Mill, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Swanson Mill, GA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Swanson Mill, GA
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is July (8.4 days).
Average UV index in September
Swanson Mill, GA
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Swanson Mill, GA
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Swanson Mill, GA
- Average visibility in September: 6mi
The months with the highest visibility are April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, May and December (5mi).
