September weather forecastHarrells Still, GA
September
Weather in September
September, the first month of the autumn in Harrells Still, is still a hot month, with an average temperature varying between 69.3°F (20.7°C) and 86.9°F (30.5°C).Temperature
The beginning of September records an average high-temperature of a still tropical 86.9°F (30.5°C), marking a negligible difference from August's 90.3°F (32.4°C). Harrells Still's nighttime temperature in September falls to an average of 69.3°F (20.7°C).Heat index
September's average heat index is evaluated at a very hot 100.4°F (38°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.Always consider that heat index estimations are for light winds and places in the shade. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', reflects the feeling of heat when considering both air temperature and humidity. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. 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 largely significant for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
The average relative humidity in September is 77%.Rainfall
In September, in Harrells Still, the rain falls for 17.1 days. Throughout September, 1.93" (49mm) of precipitation is accumulated. Throughout the year, there are 159.9 rainfall days, and 20.87" (530mm) of precipitation is accumulated.Snowfall
February through December are months without snowfall.Daylight
In Harrells Still, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 7:14 am and sunset at 8:00 pm. On the last day of September, sunrise is at 7:30 am and sunset at 7:23 pm EDT.
Sunshine
In Harrells Still, the average sunshine in September is 8.7h.UV index
In Harrells Still, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: An average maximum UV index of 6 in September leads to these recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Harrells Still, GA
- Average high temperature in September: 86.9°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 (59.2°F).
- Average low temperature in September: 69.3°F
The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (42.1°F).
Average pressure in September
Harrells Still, GA
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in September
Harrells Still, GA
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in September
Harrells Still, GA
- Average humidity in September: 77%
The month with the highest relative humidity is August (78%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Harrells Still, GA
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is November (0.67").
Average rainfall days in September
Harrells Still, GA
- Average rainfall days in September: 17.1 days
The month with the highest number of rainy days is August (24.1 days).
The month with the least rainy days is November (6.1 days).
Average snowfall in September
Harrells Still, GA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.04").
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
Harrells Still, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Harrells Still, GA
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Harrells Still, GA
- Average sunshine days in September: 11.1 days
The month with the most sunshine days is November (22.5 days).
The months with the least sunshine days are July and August (5.1 days).
Average UV index in September
Harrells Still, GA
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in September
Harrells Still, GA
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in September
Harrells Still, GA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
