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
September is marked by an average high-temperature of a warm 84.2°F (29°C), almost identical to the preceding month. September's average low-temperature reading settles at a comfortable 67.1°F (19.5°C).Heat index
The heat index in September is estimated at a tropical 91.4°F (33°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. 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.
Humidity
In Gaston, South Carolina, the average relative humidity in September is 74%.Rainfall
The months with the least rainfall are September and November Rain falls for 14.3 days and accumulates 2.01" (51mm) of rain.Snowfall
In Gaston, snow does not fall in April through November.Daylight
In September, the average length of the day in Gaston, South Carolina, is 12h and 22min.On the first day of the month, sunrise is at 6:58 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:09 pm EDT.
Sunshine
The average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September in Gaston is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: An average UV index of 6 in September transforms into this advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Frequently asked questions
How hot is September in Gaston?
What is the average humidity in September in Gaston?
What is the driest month in Gaston?
How many days does it rain in September in Gaston?
When it does not snow in Gaston?
How many hours of daylight does Gaston have in September?
What time are sunrise and sunset in September in Gaston?
How many hours of sunshine does Gaston have in September?
What is the UV index intensity in September in Gaston?
Average temperature in September
Gaston, SC
- Average high temperature in September: 84.2°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (53.2°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 (38.1°F).
Average pressure in September
Gaston, SC
- 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 (29.97"Hg).
Average wind speed in September
Gaston, SC
- Average wind speed in September: 6.2mph
The windiest months (with the highest average wind speed) are February, March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Gaston, SC
- Average humidity in September: 74%
The month with the highest relative humidity is December (75%).
The months with the lowest relative humidity are January and November (70%).
Average rainfall in September
Gaston, SC
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is December (3.86").
The driest months (with the least rainfall) are September and November (2.01").
Average rainfall days in September
Gaston, SC
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is July (19.9 days).
The months with the least rainy days are October and November (9 days).
Average snowfall in September
Gaston, SC
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Gaston, SC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Gaston, SC
- 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 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 30min).
Average sunshine days in September
Gaston, SC
- Average sunshine days in September: 14 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (8.4 days).
Average UV index in September
Gaston, SC
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Gaston, SC
- Average cloud cover in September: 31
The months with the most cloud cover are February and December (Cloud cover 41).
The months with the least cloud cover are June and October (Cloud cover 28).
Average visibility in September
Gaston, SC
- 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).
Gaston, South Carolina, USA
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