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
The advent of September brings an average high-temperature of a moderately hot 82.9°F (28.3°C), almost identical to the preceding month. Cumming experiences a mean temperature of 63.1°F (17.3°C) during September nights.Heat index
September's mean heat index is appraised at a tropical 89.6°F (32°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
The average relative humidity in September is 73%.Rainfall
In Cumming, during September, the rain falls for 14 days and regularly aggregates up to 2.72" (69mm) of precipitation. Throughout the year, in Cumming, there are 185.1 rainfall days, and 44.29" (1125mm) 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 September, sunrise is at 7:10 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:21 pm EDT.
Sunshine
The average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September in Cumming is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 5 suggests these recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
Is it hot in Cumming during September?
What is the average humidity in September in Cumming?
How much does it rain in Cumming in September?
When it does not snow in Cumming?
What is the average length of the day in September in Cumming?
What time are sunrise and sunset in September in Cumming?
How many hours of sunshine does Cumming have in September?
What is the UV index reading in September in Cumming?
Average temperature in September
Cumming, 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 (48.4°F).
- Average low temperature in September: 63.1°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in September
Cumming, 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
Cumming, GA
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Cumming, GA
- Average humidity in September: 73%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are July, August and October (72%).
Average rainfall in September
Cumming, GA
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is August (4.88").
The driest month (with the least rainfall) is October (2.4").
Average rainfall days in September
Cumming, GA
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in September
Cumming, GA
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Cumming, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.8 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
Cumming, 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: 9h and 54min).
- Average sunshine in September: 8h and 3min
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
Cumming, GA
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is July (8 days).
Average UV index in September
Cumming, 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
Cumming, GA
- Average cloud cover in September: 31
The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Cumming, 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).
Cumming, Georgia, USA
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