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
Sumner experiences a subtle adjustment in high-temperatures to a warm 85.1°F (29.5°C) with the onset of September, maintaining near parity with August's 89.1°F (31.7°C). The average nighttime temperature in Sumner lowers to a pleasant 68.5°F (20.3°C) throughout September.Heat index
During September, the heat index is evaluated at a torrid 95°F (35°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.The standards for the heat index are set for locations in shade and under light breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
The average relative humidity in September is 76%.Rainfall
In Sumner, during September, the rain falls for 16.2 days and regularly aggregates up to 2.28" (58mm) of precipitation. In Sumner, during the entire year, the rain falls for 173.7 days and collects up to 34.49" (876mm) of precipitation.Snowfall
In Sumner, snow does not fall in February through December.Daylight
In September, the average length of the day is 12h and 21min.On the first day of September, sunrise is at 7:11 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:20 pm EDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 6 suggests this advice:
Deflect overexposure. Sun protection is a necessity. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. 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
Is it hot during September?
What is the average humidity in September?
How many days does it rain in September in Sumner?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Sumner have in September?
How high is the UV index in September?
Average temperature in September
Sumner, GA
- Average high temperature in September: 85.1°F
The warmest months (with the highest average high temperature) are July and August (89.1°F).
The month with the lowest average high temperature is January (57.6°F).
- Average low temperature in September: 68.5°F
The months with the highest average low temperature are July and August (72.9°F).
The coldest month (with the lowest average low temperature) is January (41°F).
Average pressure in September
Sumner, GA
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in September
Sumner, GA
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is February (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in September
Sumner, GA
- Average humidity in September: 76%
The month with the highest relative humidity is August (77%).
The months with the lowest relative humidity are January, October and November (71%).
Average rainfall in September
Sumner, GA
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is August (3.98").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in September
Sumner, GA
- Average rainfall days in September: 16.2 days
The month with the highest number of rainy days is July (23.1 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in September
Sumner, GA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Sumner, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Sumner, GA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- 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 24min).
Average sunshine days in September
Sumner, GA
- Average sunshine days in September: 11.5 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is August (5.3 days).
Average UV index in September
Sumner, GA
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Sumner, GA
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 41).
The months with the least cloud cover are May and October (Cloud cover 28).
Average visibility in September
Sumner, 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).
Sumner, Georgia, USA
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