September weather forecastPreston, GA
September
Weather in September
September, the first month of the autumn in Preston, is still a warm month, with temperature in the range of an average low of 68°F (20°C) and an average high of 85.5°F (29.7°C).Temperature
With the onset of September, the average high-temperature stands at a warm 85.5°F (29.7°C), closely aligned with August's 89.4°F (31.9°C). During the nights in September, an average low-temperature of 68°F (20°C) is observed.Heat index
During September, the heat index is estimated at a sweltering 95°F (35°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.In reference to the heat index, it's for places in shade and with a slight wind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.
Humidity
The average relative humidity in September in Preston is 73%.Rainfall
In Preston, in September, it is raining for 13.1 days, with typically 1.5" (38mm) of accumulated precipitation. In Preston, during the entire year, the rain falls for 152.2 days and collects up to 22.95" (583mm) of precipitation.Snowfall
In Preston, snow does not fall in April through December.Daylight
In Preston, the average length of the day in September is 12h and 21min.On the first day of September in Preston, sunrise is at 7:13 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:23 pm EDT.
Sunshine
In Preston, the average sunshine in September is 8.7h.UV index
In Preston, Georgia, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: The UV index of 6 during September leads to these advisories:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Preston, GA
- Average high temperature in September: 85.5°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (55.9°F).
- Average low temperature in September: 68°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).
Average pressure in September
Preston, GA
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in September
Preston, GA
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Preston, GA
- Average humidity in September: 73%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Preston, GA
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is November (1.22").
Average rainfall days in September
Preston, GA
- Average rainfall days in September: 13.1 days
The months with the highest number of rainy days are July and August (20.3 days).
The month with the least rainy days is November (6.9 days).
Average snowfall in September
Preston, GA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Preston, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Preston, GA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
Preston, GA
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (21.9 days).
The months with the least sunshine days are July and August (8.3 days).
Average UV index in September
Preston, GA
- Average UV index in September: 6
The months with the highest UV index are May, June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Preston, GA
- Average cloud cover in September: 31
The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in September
Preston, 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).
