September weather forecast
Swanson Mill, GA

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Weather in September

The first month of the autumn, September, is still a warm month in Swanson Mill, Georgia, with an average temperature fluctuating between 82.6°F (28.1°C) and 61.3°F (16.3°C).

Temperature

Swanson Mill's progression into September involves a gentle drop in the average high-temperature, from a tropical 88°F (31.1°C) in August to a moderately hot 82.6°F (28.1°C). September nights are marked by an average low-temperature of 61.3°F (16.3°C).

Heat index

For most parts of September, the heat index is computed to be a tropical 89.6°F (32°C). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.
In terms of the heat index, values are set with light wind and shade conditions in mind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical 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.

Humidity

The average relative humidity in September in Swanson Mill is 75%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.2 days and accumulates 2.52" (64mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 7:13 am and sunset at 8:06 pm. On the last day of September, sunrise is at 7:35 am and sunset at 7:25 pm EDT.

Sunshine

In September, the average sunshine in Swanson Mill is 8.6h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 5 during September translates into these guidelines:
Take precautions - Protection against skin and eye damage is obliged. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
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Frequently asked questions

How hot is September in Swanson Mill?

During September, Swanson Mill experiences an average high-temperature of 82.6°F (28.1°C) and a low-temperature of 61.3°F (16.3°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 89.6°F (32°C).

What is the average humidity in September in Swanson Mill?

In September, the average relative humidity in Swanson Mill, Georgia, is 75%.

What is the driest month in Swanson Mill?

September is the month with the least rainfall. Rain falls for 13.2 days and accumulates 2.52" (64mm) of precipitation.

How much does it rain in Swanson Mill in September?

In Swanson Mill, during September, the rain falls for 13.2 days and regularly aggregates up to 2.52" (64mm) of precipitation.

When it does not snow in Swanson Mill?

In Swanson Mill, snow does not fall in May through October.

How many hours of daylight does Swanson Mill have in September?

In Swanson Mill, the average day length in September is 12h and 23min.

When are sunrise and sunset in September in Swanson Mill?

On the first day of September in Swanson Mill, sunrise is at 7:13 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:25 pm EDT.

How many hours of sunshine does Swanson Mill have in September?

The average sunshine duration in September in Swanson Mill is 8.6h.

What is the UV index intensity in September in Swanson Mill?

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from 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
Swanson Mill, GA

Average temperature in September - Swanson Mill, GA
  • Average high temperature in September: 82.6°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 (46.9°F).

  • Average low temperature in September: 61.3°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (31.8°F).

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Average pressure in September
Swanson Mill, GA

Average pressure in September - Swanson Mill, GA
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in September
Swanson Mill, GA

Average wind speed in September - Swanson Mill, GA
  • Average wind speed in September: 4.2mph

The windiest month (with the highest average wind speed) is February (6.7mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).

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Average humidity in September
Swanson Mill, GA

Average humidity in September - Swanson Mill, GA
  • Average humidity in September: 75%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are August, October and November (74%).

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Average rainfall in September
Swanson Mill, GA

Average rainfall in September - Swanson Mill, GA
  • Average rainfall in September: 2.52"

The wettest month (with the highest rainfall) is July (4.06").
The driest month (with the least rainfall) is September (2.52").

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Average rainfall days in September
Swanson Mill, GA

Average rainfall days in September - Swanson Mill, GA
  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (9.2 days).

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Average snowfall in September
Swanson Mill, GA

Average snowfall in September - Swanson Mill, GA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Swanson Mill, GA

Average snowfall days in September - Swanson Mill, GA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Swanson Mill, GA

Average daylight in September / Average sunshine in September - Swanson Mill, GA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in September
Swanson Mill, GA

Average sunshine days in September - Swanson Mill, GA
  • Average sunshine days in September: 14.6 days

The month with the most sunshine days is October (19 days).
The month with the least sunshine days is July (8.4 days).

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Average UV index in September
Swanson Mill, GA

Average UV index in September - Swanson Mill, 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
Swanson Mill, GA

Average cloud cover in September - Swanson Mill, GA
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in September
Swanson Mill, GA

Average visibility in September - Swanson Mill, GA
  • Average visibility in September: 6mi

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

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Swanson Mill, Georgia, USA

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