Flowery Branch
Georgia, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Flowery Branch, GA

September, the first month of the autumn, in Flowery Branch, is still a warm month, with average temperature varying between 63.1°F (17.3°C) and 83.1°F (28.4°C).

Temperature

In September, the average high-temperature is practically the same as in August - a warm 83.1°F (28.4°C). In September, the average low-temperature is 63.1°F (17.3°C).

Heat index

In September, the average heat index is evaluated at a tropical 89.4°F (31.9°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'real feel', or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, pregnancy, differences in body mass, height, and shape). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for 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.

Humidity

In September, the average relative humidity is 73%.

Rainfall

In Flowery Branch, during September, the rain falls for 13.6 days and regularly aggregates up to 2.56" (65mm) of precipitation. In Flowery Branch, during the entire year, the rain falls for 180.6 days and collects up to 42.4" (1077mm) of precipitation.

Snowfall

In Flowery Branch, Georgia, snow does not fall in April through October.

Daylight

In September, the average length of the day is 12.4h.

Sunshine

In September, the average sunshine is 8.6h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Flowery Branch?

In Flowery Branch, in September, the average high-temperature is 83.1°F (28.4°C), and the average low-temperature is 63.1°F (17.3°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), that calculates temperature value influenced by the moisture in the air, is estimated at 89.4°F (31.9°C).

What is the average humidity in September in Flowery Branch?

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

How much does it rain in Flowery Branch in September?

In September, the rain falls for 13.6 days. Throughout September, 2.56" (65mm) of precipitation is accumulated.

When it does not snow in Flowery Branch?

In Flowery Branch snow does not fall in April through October.

What is the average length of the day in September in Flowery Branch?

In Flowery Branch, Georgia, the average length of the day in September is 12.4h.

How long on average sun shines in September in Flowery Branch?

The average sunshine in September in Flowery Branch is 8.6h.

What is the UV index intensity in September in Flowery Branch?

In Flowery Branch, Georgia, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health risk from the exposure to the Sun's UV rays.
Average temperature in September - Flowery Branch, GA
  • Average high temperature in September: 83.1°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (48.7°F).

  • Average low temperature in September: 63.1°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

Average humidity in September - Flowery Branch, GA
  • Average humidity in September: 73%

The month with the highest relative humidity is December (78%).
Months with the lowest relative humidity are July and October (72%).

Average rainfall in September - Flowery Branch, GA
  • Average rainfall in September: 2.56"

The wettest month (with the highest rainfall) is August (4.61").
The driest month (with the least rainfall) is October (2.32").

Average rainfall days in September - Flowery Branch, GA
  • Average rainfall days in September: 13.6 days

The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is October (9.6 days).

Average snowfall in September - Flowery Branch, GA
  • Average snowfall in September: 0"

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

Average snowfall days in September - Flowery Branch, GA
  • Average snowfall days in September: 0 days

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

Average daylight in September / Average sunshine in September - Flowery Branch, GA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in September: 8.6h

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is December (Average sunshine: 5.2h).

Average UV index in September - Flowery Branch, GA
  • Average UV index in September: 5

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