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
In September, the average high-temperature is practically the same as in August - a moderately hot 85.3°F (29.6°C). In September, in Keysville, the average low-temperature is 67.1°F (19.5°C).Heat index
In September, the average heat index is evaluated at a very hot 95°F (35°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'apparent temperature', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, differences in body mass, height, and shape, pregnancy). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
The average relative humidity in September is 72%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.9 days and typically collects 1.93" (49mm) of precipitation.Snowfall
In Keysville, Georgia, snow does not fall in April through November.Daylight
In Keysville, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 7:03 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:15 pm EDT.
Sunshine
In Keysville, the average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The average daily UV index of 6 in September transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
FAQ
What is the temperature in September in Keysville?
What is the average humidity in September in Keysville?
What is the driest month in Keysville?
How many days does it rain in September in Keysville?
When it does not snow in Keysville?
How many hours of daylight does Keysville have in September?
When are sunrise and sunset in September in Keysville?
How long on average sun shines in September in Keysville?
What is the UV index reading in September in Keysville?
Average temperature in September
Keysville, GA
- Average high temperature in September: 85.3°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (54.3°F).
- Average low temperature in September: 67.1°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).
Average pressure in September
Keysville, GA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Keysville, GA
- Average wind speed in September: 6mph
The windiest months (with the highest average wind speed) are February and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Keysville, GA
- Average humidity in September: 72%
The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are January, July, October and November (71%).
Average rainfall in September
Keysville, GA
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Keysville, GA
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is August (20.1 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Keysville, GA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.28").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Keysville, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.6 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
Keysville, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Keysville, GA
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in September
Keysville, GA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Keysville, GA
- Average cloud cover in September: 30
The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in September
Keysville, 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).
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