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 transition from August to September sees an average high-temperature of a warm 85.6°F (29.8°C), indicating a minor variance from the prior month. Hartsfield sees an average low-temperature of 68.9°F (20.5°C) during September.Heat index
For most parts of September, the heat index is appraised at a very hot 96.8°F (36°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.Heat index specifics point out values are for conditions of shade and a slight breeze. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. 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 hold particular importance for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.
Humidity
The average relative humidity in September in Hartsfield, Georgia, is 77%.Rainfall
In Hartsfield, in September, it is raining for 15 days, with typically 1.26" (32mm) of accumulated precipitation. Throughout the year, in Hartsfield, there are 145.6 rainfall days, and 15.94" (405mm) of precipitation is accumulated.Snowfall
February through December are months without snowfall.Daylight
In September, the average length of the day in Hartsfield is 12h and 20min.On the first day of September, sunrise is at 7:12 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:21 pm EDT.
Sunshine
The average sunshine in September in Hartsfield is 8.8h.UV index
In September, the average daily maximum UV index in Hartsfield is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 6 suggests this advice:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less 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. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Frequently asked questions
Is it hot in Hartsfield during September?
What is the average humidity in September in Hartsfield?
How many days does it rain in September in Hartsfield?
When it does not snow in Hartsfield?
What is the average length of the day in September in Hartsfield?
What time are sunrise and sunset in September in Hartsfield?
How long on average sun shines in September in Hartsfield?
What is the UV index intensity in September in Hartsfield?
Average temperature in September
Hartsfield, GA
- Average high temperature in September: 85.6°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (58.6°F).
- Average low temperature in September: 68.9°F
The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).
Average pressure in September
Hartsfield, GA
- Average pressure in September: 29.99"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
Hartsfield, GA
- Average wind speed in September: 5.9mph
The windiest months (with the highest average wind speed) are January and March (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).
Average humidity in September
Hartsfield, GA
- Average humidity in September: 77%
The month with the highest relative humidity is August (78%).
The months with the lowest relative humidity are May and November (71%).
Average rainfall in September
Hartsfield, GA
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is June (2.4").
The driest month (with the least rainfall) is November (0.59").
Average rainfall days in September
Hartsfield, GA
- Average rainfall days in September: 15 days
The month with the highest number of rainy days is August (22 days).
The month with the least rainy days is November (5.9 days).
Average snowfall in September
Hartsfield, 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
Hartsfield, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Hartsfield, GA
- Average daylight in September: 12h and 2min
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 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Hartsfield, GA
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is November (22.7 days).
The month with the least sunshine days is August (6.2 days).
Average UV index in September
Hartsfield, GA
- Average UV index in September: 6
The months with the highest UV index are May, 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
Hartsfield, GA
- Average cloud cover in September: 31
The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are May and October (Cloud cover 28).
Average visibility in September
Hartsfield, GA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Hartsfield, Georgia, USA
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