September weather forecast
Riverridge, GA

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Weather in September

September, the first month of the autumn in Riverridge, is also a moderately hot month, with an average temperature varying between 66°F (18.9°C) and 85.3°F (29.6°C).

Temperature

Riverridge's shift into September sets the average high-temperature at a moderately hot 85.3°F (29.6°C), a figure that deviates only slightly from August's 89.8°F (32.1°C). Throughout September, Riverridge registers a consistent average low-temperature of 66°F (18.9°C).

Heat index

For September, the heat index is evaluated at a very hot 95°F (35°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

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

Rainfall

In Riverridge, in September, during 12.5 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, there are 152.9 rainfall days, and 22.2" (564mm) of precipitation is accumulated.

Snowfall

March through December are months without snowfall in Riverridge.

Daylight

In Riverridge, the average length of the day in September is 12h and 22min.
On the first day of September, sunrise is at 7:15 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:26 pm EDT.

Sunshine

In Riverridge, the average sunshine in September is 8.6h.

UV index

In Riverridge, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 during September translates into the following directions:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
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Frequently asked questions

How hot is September in Riverridge?

In September, the average high-temperature and low-temperature are 85.3°F (29.6°C) and 66°F (18.9°C) respectively. In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 95°F (35°C).

What is the average humidity in September in Riverridge?

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

How much does it rain in Riverridge in September?

In Riverridge, Georgia, during September, the rain falls for 12.5 days and regularly aggregates up to 1.42" (36mm) of precipitation.

When it does not snow in Riverridge?

In Riverridge, snow does not fall in March through December.

What is the average length of the day in September in Riverridge?

In September, the average day length is 12h and 22min.

What time are sunrise and sunset in September in Riverridge?

In September, on the first day of the month, sunrise is at 7:15 am and sunset at 8:05 pm. On the last day of the month, in Riverridge, Georgia, sunrise is at 7:34 am and sunset at 7:26 pm EDT.

How many hours of sunshine does Riverridge have in September?

The average sunshine duration in September is 8.6h.

How high is the UV index in September in Riverridge?

In Riverridge, Georgia, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to 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
Riverridge, GA

Average temperature in September - Riverridge, GA
  • Average high temperature in September: 85.3°F

The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (53.2°F).

  • Average low temperature in September: 66°F

The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).

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Average pressure in September
Riverridge, GA

Average pressure in September - Riverridge, GA
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in September
Riverridge, GA

Average wind speed in September - Riverridge, GA
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in September
Riverridge, GA

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

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Riverridge, GA

Average rainfall in September - Riverridge, GA
  • Average rainfall in September: 1.42"

The wettest month (with the highest rainfall) is August (2.72").
The driest month (with the least rainfall) is October (1.3").

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Average rainfall days in September
Riverridge, GA

Average rainfall days in September - Riverridge, GA
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is November (7.5 days).

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Average snowfall in September
Riverridge, GA

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

The month with the highest snowfall is January (0.28").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Riverridge, GA

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

The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

Average daylight in September / Average sunshine in September - Riverridge, 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 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
Riverridge, GA

Average sunshine days in September - Riverridge, GA
  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is October (21.8 days).
The month with the least sunshine days is July (8.1 days).

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Average UV index in September
Riverridge, GA

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

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

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Average cloud cover in September
Riverridge, GA

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

The month with the most cloud cover is December (Cloud cover 46).
The months with the least cloud cover are September and October (Cloud cover 31).

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Average visibility in September
Riverridge, GA

Average visibility in September - Riverridge, 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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Riverridge, Georgia, USA

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