September weather forecastCornelia, GA
September
Weather in September
September, the first month of the autumn in Cornelia, is also a moderately hot month, with an average temperature fluctuating between 82.9°F (28.3°C) and 61.5°F (16.4°C).Temperature
September's advent notes a subtle adjustment in average high-temperature to a warm 82.9°F (28.3°C) from August. Cornelia throughout September, experiences an average nighttime temperature of 61.5°F (16.4°C).Heat index
In September, the heat index is calculated to be a hot 89.6°F (32°C). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in September in Cornelia, Georgia, is 74%.Rainfall
September is the month with the least rainfall in Cornelia. Rain falls for 10.9 days and accumulates 1.93" (49mm) of precipitation.Snowfall
April through October are months without snowfall in Cornelia.Daylight
In Cornelia, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 7:07 am and sunset at 7:59 pm. On the last day of September, in Cornelia, Georgia, sunrise is at 7:28 am and sunset at 7:19 pm EDT.
Sunshine
In September, the average sunshine in Cornelia is 8.4h.UV index
In Cornelia, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cornelia, GA
- Average high temperature in September: 82.9°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 (48.7°F).
- Average low temperature in September: 61.5°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 (32.7°F).
Average pressure in September
Cornelia, GA
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Cornelia, GA
- Average wind speed in September: 4.5mph
The windiest months (with the highest average wind speed) are January and February (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Cornelia, GA
- Average humidity in September: 74%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (72%).
Average rainfall in September
Cornelia, GA
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is December (4.33").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Cornelia, GA
- Average rainfall days in September: 10.9 days
The months with the highest number of rainy days are May and July (15.1 days).
The month with the least rainy days is October (8.8 days).
Average snowfall in September
Cornelia, GA
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.27").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Cornelia, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 days).
The 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
Cornelia, GA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Cornelia, GA
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is February (12.7 days).
Average UV index in September
Cornelia, 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
Cornelia, GA
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in September
Cornelia, GA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, June, July, August, September, October and November (6mi).
The months with the lowest visibility are April, May and December (5mi).
