September weather forecast
Preston, GA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Preston, Georgia, with an average temperature fluctuating between 68°F (20°C) and 85.5°F (29.7°C).

Temperature

The arrival of September is marked by an average high-temperature of a warm 85.5°F (29.7°C), bearing a close resemblance to August. Throughout the month of September, Preston observes an average nighttime temperature of 68°F (20°C).

Heat index

Throughout September, the heat index is estimated at a sweltering 95°F (35°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In Preston, the average relative humidity in September is 73%.

Rainfall

In September, the rain falls for 13.1 days. Throughout September, 1.5" (38mm) of precipitation is accumulated. Throughout the year, in Preston, there are 152.2 rainfall days, and 22.95" (583mm) of precipitation is accumulated.

Snowfall

April through December are months without snowfall.

Daylight

In Preston, the average length of the day in September is 12h and 21min.
On the first day of September, sunrise is at 7:13 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:23 pm EDT.

Sunshine

The average sunshine in September in Preston, Georgia, is 8.7h.

UV index

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 6 during September translates into the following guidance:
Ward off overexposure. Defence against solar harm is crucial. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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Frequently asked questions

How hot is it in Preston in September?

During September, Preston experiences an average high-temperature of 85.5°F (29.7°C) and a low-temperature of 68°F (20°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 95°F (35°C).

What is the average humidity in September in Preston?

In September, the average relative humidity in Preston, Georgia, is 73%.

How many days does it rain in September in Preston?

In Preston, during September, the rain falls for 13.1 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When it does not snow in Preston?

In Preston, Georgia, snow does not fall in April through December.

How many hours of daylight does Preston have in September?

The average day length in September in Preston, Georgia, is 12h and 21min.

What time are sunrise and sunset in September in Preston?

On the first day of September in Preston, Georgia, sunrise is at 7:13 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:23 pm EDT.

How long on average sun shines in September in Preston?

In Preston, Georgia, the average sunshine duration in September is 8.7h.

How high is the UV index in September in Preston?

The average daily maximum UV index in September in Preston is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.
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
Preston, GA

Average temperature in September - Preston, GA
  • Average high temperature in September: 85.5°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 (55.9°F).

  • Average low temperature in September: 68°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).

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Average pressure in September
Preston, GA

Average pressure in September - Preston, GA
  • Average pressure in September: 30"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).

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Average wind speed in September
Preston, GA

Average wind speed in September - Preston, GA
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in September
Preston, GA

Average humidity in September - Preston, GA
  • Average humidity in September: 73%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in September
Preston, GA

Average rainfall in September - Preston, GA
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is November (1.22").

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Average rainfall days in September
Preston, GA

Average rainfall days in September - Preston, GA
  • Average rainfall days in September: 13.1 days

The months with the highest number of rainy days are July and August (20.3 days).
The month with the least rainy days is November (6.9 days).

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Average snowfall in September
Preston, GA

Average snowfall in September - Preston, GA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.12").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Preston, GA

Average snowfall days in September - Preston, GA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in September /
Average sunshine in September
Preston, GA

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

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

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Average sunshine days in September
Preston, GA

Average sunshine days in September - Preston, GA
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is October (21.9 days).
The months with the least sunshine days are July and August (8.3 days).

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Average UV index in September
Preston, GA

Average UV index in September - Preston, GA
  • Average UV index in September: 6

The months with the highest UV index are May, June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in September
Preston, GA

Average cloud cover in September - Preston, GA
  • Average cloud cover in September: 31

The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 28).

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Average visibility in September
Preston, GA

Average visibility in September - Preston, 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).

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Preston, Georgia, USA

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