September weather forecast
Green Hills, GA

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Weather in September

September, the first month of the autumn in Green Hills, is also a moderately hot month, with an average temperature fluctuating between 62.6°F (17°C) and 82.8°F (28.2°C).

Temperature

The introduction of September notes a subtle temperature variation to a moderately hot 82.8°F (28.2°C) from August's 87.6°F (30.9°C). Green Hills, in September, experiences an average temperature of 62.6°F (17°C) at night.

Heat index

The heat index for September is estimated at a hot 89.6°F (32°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.
Note that heat index values are valued for light wind and location in the shade. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Green Hills, in September, during 13.4 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. Throughout the year, in Green Hills, there are 181.4 rainfall days, and 41.93" (1065mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Green Hills.

Daylight

The average length of the day in September in Green Hills is 12h and 23min.
On the first day of September in Green Hills, sunrise is at 7:09 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:20 pm EDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 5 in September interprets into the following advice:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
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Frequently asked questions

Is it hot in Green Hills during September?

The high-temperature, in September, in Green Hills, is 82.8°F (28.2°C), while the low-temperature averages to 62.6°F (17°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 89.6°F (32°C).

What is the average humidity in September in Green Hills?

In September, the average relative humidity is 74%.

How many days does it rain in September in Green Hills?

In Green Hills, Georgia, during September, the rain falls for 13.4 days and regularly aggregates up to 2.52" (64mm) of precipitation.

When it does not snow in Green Hills?

April through October are months without snowfall in Green Hills, Georgia.

How many hours of daylight does Green Hills have in September?

In Green Hills, Georgia, the average day length in September is 12h and 23min.

When are sunrise and sunset in September in Green Hills?

In September, on the first day of the month, sunrise is at 7:09 am and sunset at 8:01 pm. On the last day of the month, in Green Hills, Georgia, sunrise is at 7:29 am and sunset at 7:20 pm EDT.

How many hours of sunshine does Green Hills have in September?

The average sunshine duration in September in Green Hills is 8.5h.

What is the UV index intensity in September in Green Hills?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Green Hills, GA

Average temperature in September - Green Hills, GA
  • Average high temperature in September: 82.8°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (48.6°F).

  • Average low temperature in September: 62.6°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

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Average pressure in September
Green Hills, GA

Average pressure in September - Green Hills, GA
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

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Average wind speed in September
Green Hills, GA

Average wind speed in September - Green Hills, GA
  • Average wind speed in September: 4.5mph

The windiest month (with the highest average wind speed) is January (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in September
Green Hills, GA

Average humidity in September - Green Hills, GA
  • Average humidity in September: 74%

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are July, August, October and November (73%).

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Average rainfall in September
Green Hills, GA

Average rainfall in September - Green Hills, GA
  • Average rainfall in September: 2.52"

The wettest month (with the highest rainfall) is December (4.25").
The driest month (with the least rainfall) is October (2.36").

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Average rainfall days in September
Green Hills, GA

Average rainfall days in September - Green Hills, GA
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is July (20.9 days).
The month with the least rainy days is October (10.1 days).

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Average snowfall in September
Green Hills, GA

Average snowfall in September - Green Hills, GA
  • Average snowfall in September: 0"

The month with the highest snowfall is December (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Green Hills, GA

Average snowfall days in September - Green Hills, GA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Green Hills, GA

Average daylight in September / Average sunshine in September - Green Hills, GA
  • 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

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Average sunshine days in September
Green Hills, GA

Average sunshine days in September - Green Hills, GA
  • Average sunshine days in September: 14.6 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (7.8 days).

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Average UV index in September
Green Hills, GA

Average UV index in September - Green Hills, GA
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in September
Green Hills, GA

Average cloud cover in September - Green Hills, GA
  • Average cloud cover in September: 31

The months with the most cloud cover are February and December (Cloud cover 44).
The month with the least cloud cover is June (Cloud cover 29).

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Average visibility in September
Green Hills, GA

Average visibility in September - Green Hills, GA
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).

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Green Hills, Georgia, USA

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