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 warm 84°F (28.9°C), almost identical to the preceding month. Throughout the month of September, Greenville reports a steady low-temperature average of 65.5°F (18.6°C).Heat index
For September, the heat index is appraised at a tropical 91.4°F (33°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.It is emphasized that the heat index's values are meant for shaded zones with mild winds. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Humidity
The average relative humidity in September is 74%.Rainfall
In Greenville, in September, it is raining for 11.7 days, with typically 1.26" (32mm) of accumulated precipitation. In Greenville, during the entire year, the rain falls for 143.3 days and collects up to 18.15" (461mm) of precipitation.Snowfall
April through December are months without snowfall.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 7:13 am and sunset at 8:03 pm. On the last day of September, sunrise is at 7:32 am and sunset at 7:24 pm EDT.
Sunshine
The average sunshine in September is 8.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 5 suggests these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. It's recommended to limit sun exposure when its radiation is at its peak during midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Greenville have in September?
When is the sunrise / sunset in September in Greenville?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Greenville, GA
- Average high temperature in September: 84°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (52.7°F).
- Average low temperature in September: 65.5°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).
Average pressure in September
Greenville, GA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Greenville, GA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in September
Greenville, GA
- Average humidity in September: 74%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Greenville, GA
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is August (2.87").
The driest months (with the least rainfall) are October and November (0.98").
Average rainfall days in September
Greenville, GA
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (6.8 days).
Average snowfall in September
Greenville, GA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.24").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Greenville, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.7 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
Greenville, GA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Greenville, GA
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is October (22.5 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in September
Greenville, GA
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Greenville, GA
- Average cloud cover in September: 34
The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 33).
Average visibility in September
Greenville, GA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Greenville, Georgia, USA
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