Harrells Still
Georgia, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Harrells Still, GA

The first month of the autumn, September, is also a hot month in Harrells Still, Georgia, with temperature in the range of an average low of 69.3°F (20.7°C) and an average high of 86.9°F (30.5°C).

Temperature

In September, the average high-temperature is relatively the same as in August - a still hot 86.9°F (30.5°C). The average low-temperature, in September, is 69.3°F (20.7°C).

Heat index

The average heat index is estimated at a very hot 100.9°F (38.3°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like activity, metabolic differences, pregnancy, and differences in body mass, height, and shape affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

In Harrells Still, the average relative humidity is 77%.

Rainfall

In Harrells Still, during 17.1 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Harrells Still, Georgia, during the entire year, the rain falls for 159.9 days and collects up to 20.87" (530mm) of precipitation.

Snowfall

In Harrells Still snow does not fall in February through December.

Daylight

In Harrells Still, the average length of the day in September is 12.3h.

Sunshine

In Harrells Still, the average sunshine in September is 8.7h.

UV index

In September, the average daily maximum UV index in Harrells Still is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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 Harrells Still?

In September, the average high-temperature is 86.9°F (30.5°C), and the average low-temperature is 69.3°F (20.7°C). The average heat index (a.k.a. 'feels like', 'real feel'), that combines air temperature and relative humidity, in September is calculated to 100.9°F (38.3°C).

What is the average humidity in September in Harrells Still?

In September, the average relative humidity is 77%.

How many days does it rain in September in Harrells Still?

In Harrells Still, Georgia, during September, the rain falls for 17.1 days and regularly aggregates up to 1.93" (49mm) of precipitation.

When it does not snow in Harrells Still?

In Harrells Still, Georgia, snow does not fall in February through December.

What is the average length of the day in September in Harrells Still?

In September, the average length of the day in Harrells Still is 12.3h.

How long on average sun shines in September in Harrells Still?

The average sunshine in September in Harrells Still is 8.7h.

What is the UV index intensity in September in Harrells Still?

The average daily maximum UV index in September in Harrells Still is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in September - Harrells Still, GA
  • Average high temperature in September: 86.9°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 (59.2°F).

  • Average low temperature in September: 69.3°F

The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (42.1°F).

Average humidity in September - Harrells Still, GA
  • Average humidity in September: 77%

The month with the highest relative humidity is August (78%).
The month with the lowest relative humidity is May (71%).

Average rainfall in September - Harrells Still, GA
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is November (0.67").

Average rainfall days in September - Harrells Still, GA
  • Average rainfall days in September: 17.1 days

The month with the highest number of rainy days is August (24.1 days).
The month with the least rainy days is November (6.1 days).

Average snowfall in September - Harrells Still, GA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.04").
Months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September - Harrells Still, GA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.1 days).
Months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in September / Average sunshine in September - Harrells Still, GA
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 14.1h).
The month with the shortest days is December (Average daylight: 10.2h).

  • Average sunshine in September: 8.7h

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is December (Average sunshine: 5.6h).

Average UV index in September - Harrells Still, GA
  • Average UV index in September: 6

Months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).