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 arrival of September brings an average high-temperature of a moderately hot 85.8°F (29.9°C), closely following the temperature pattern of August. Throughout September, the temperature falls to an average low of 67.1°F (19.5°C).Heat index
The heat index value for September is estimated at a fiery hot 95°F (35°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
In September, the average relative humidity is 70%.Rainfall
The month with the least rainfall in Grovetown is September, when the rain falls for 8.5 days and typically collects 0.43" (11mm) of precipitation.Snowfall
In Grovetown, snow does not fall in February through December.Daylight
The average length of the day in September is 12h and 22min.On the first day of September in Grovetown, sunrise is at 7:03 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:14 pm EDT.
Sunshine
The average sunshine in September in Grovetown is 8.6h.UV index
The average daily maximum UV index in September in Grovetown is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Frequently asked questions
How hot is it in Grovetown in September?
What is the average humidity in September in Grovetown?
What is the driest month in Grovetown?
How much does it rain in Grovetown in September?
When it does not snow in Grovetown?
What is the average length of the day in September in Grovetown?
When is the sunrise / sunset in September in Grovetown?
How long on average sun shines in September in Grovetown?
How high is the UV index in September in Grovetown?
Average temperature in September
Grovetown, GA
- Average high temperature in September: 85.8°F
The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is January (53.6°F).
- Average low temperature in September: 67.1°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).
Average pressure in September
Grovetown, GA
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Grovetown, GA
- Average wind speed in September: 5.8mph
The windiest months (with the highest average wind speed) are February, March and April (8mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Grovetown, GA
- Average humidity in September: 70%
The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is July (69%).
Average rainfall in September
Grovetown, GA
- Average rainfall in September: 0.43"
The wettest month (with the highest rainfall) is August (1.26").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in September
Grovetown, GA
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is August (13.8 days).
The month with the least rainy days is October (5.5 days).
Average snowfall in September
Grovetown, 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
Grovetown, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.5 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
Grovetown, 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
Grovetown, GA
- Average sunshine days in September: 19.1 days
The month with the most sunshine days is October (24.2 days).
The month with the least sunshine days is August (13.3 days).
Average UV index in September
Grovetown, 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, February and December (UV index 3).
Average cloud cover in September
Grovetown, GA
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in September
Grovetown, 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).
Grovetown, Georgia, USA
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