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
Summertown starts September with an average high-temperature of a warm 85.3°F (29.6°C), a minor shift from August's 89.8°F (32.1°C). Throughout September, Summertown witnesses a nighttime temperature average of 67.8°F (19.9°C).Heat index
The heat index value during September is evaluated at a very hot 95°F (35°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
The average relative humidity in September in Summertown, Georgia, is 74%.Rainfall
In Summertown, Georgia, in September, it is raining for 15.1 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, there are 174.8 rainfall days, and 34.17" (868mm) of precipitation is accumulated.Snowfall
In Summertown, snow does not fall in January, March through November.Daylight
In Summertown, Georgia, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 7:04 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:14 pm EDT.
Sunshine
The average sunshine in September in Summertown is 8.7h.UV index
In Summertown, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 6 during September translates into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Summertown in September?
What is the average humidity in September in Summertown?
How much does it rain in Summertown in September?
When it does not snow in Summertown?
How many hours of daylight does Summertown have in September?
When are sunrise and sunset in September in Summertown?
How long on average sun shines in September in Summertown?
What is the UV index reading in September in Summertown?
Average temperature in September
Summertown, GA
- Average high temperature in September: 85.3°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (55.2°F).
- Average low temperature in September: 67.8°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.4°F).
Average pressure in September
Summertown, GA
- Average pressure in September: 30"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
Summertown, GA
- Average wind speed in September: 6.2mph
The windiest months (with the highest average wind speed) are February, March and April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in September
Summertown, GA
- Average humidity in September: 74%
The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are January and November (71%).
Average rainfall in September
Summertown, GA
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is November (1.97").
Average rainfall days in September
Summertown, GA
- Average rainfall days in September: 15.1 days
The month with the highest number of rainy days is July (21.7 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Summertown, GA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.08").
The months with the least snowfall are January, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Summertown, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.3 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
Summertown, 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
Summertown, GA
- Average sunshine days in September: 12.1 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is August (6.7 days).
Average UV index in September
Summertown, 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
Summertown, GA
- Average cloud cover in September: 31
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
Summertown, 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).
Summertown, Georgia, USA
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