September weather forecastPowder Springs, GA
September
Weather in September
September, the first month of the autumn in Powder Springs, is still a warm month, with an average temperature fluctuating between 83.7°F (28.7°C) and 65.1°F (18.4°C).Temperature
In September, the average high-temperature registers at a warm 83.7°F (28.7°C), nearly identical to August's 88.7°F (31.5°C). Powder Springs records an average nighttime low-temperature of 65.1°F (18.4°C) throughout September.Heat index
Throughout September, the heat index is calculated to be a hot 89.6°F (32°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.Take note of the fact that heat index values are based on shaded circumstances with light airflows. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
In September, the average relative humidity in Powder Springs is 72%.Rainfall
In Powder Springs, in September, during 13.3 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, 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 in Powder Springs is 12h and 22min.On the first day of September in Powder Springs, sunrise is at 7:12 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:23 pm EDT.
Sunshine
The average sunshine in September in Powder Springs is 8.6h.UV index
In Powder Springs, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The UV index of 5 during September leads to these advisories:
Put precautions into practice - Guidance to elude sunburn is provided. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Powder Springs, 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
Powder Springs, 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
Powder Springs, 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
Powder Springs, 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
Powder Springs, 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
Powder Springs, 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
Powder Springs, 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
Powder Springs, 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
Powder Springs, 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 36min
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
Powder Springs, 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
Powder Springs, 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
Powder Springs, 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
Powder Springs, 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).





