September weather forecastMountain City, GA

September

Weather in September

September, the first month of the autumn in Mountain City, is still a warm month, with an average temperature varying between 78.4°F (25.8°C) and 58.1°F (14.5°C).

Temperature

With the onset of September, the average high-temperature stands at a still moderately hot 78.4°F (25.8°C), closely aligned with August's 83.3°F (28.5°C). During September, Mountain City consistently records a temperature low averaging a refreshing 58.1°F (14.5°C).

Humidity

In Mountain City, the average relative humidity in September is 77%.

Rainfall

September is the month with the least rainfall. Rain falls for 15.5 days and accumulates 2.83" (72mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in September in Mountain City is 12h and 23min.
On the first day of September, sunrise is at 7:06 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:18 pm EDT.

Sunshine

The average sunshine in September is 8.4h.

UV index

In Mountain City, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: An average UV index of 5 in September transforms into this advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Updated: Jun 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Mountain City, in September, the average high-temperature is 78.4°F (25.8°C), and the average low-temperature is 58.1°F (14.5°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, is appraised at 91.4°F (33°C).

In Mountain City, Georgia, the average relative humidity in September is 77%.

The month with the least rainfall is September, when the rain falls for 15.5 days and typically collects 2.83" (72mm) of precipitation.

In Mountain City, in September, it is raining for 15.5 days, with typically 2.83" (72mm) of accumulated precipitation.

May through October are months without snowfall.

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

In September, on the first day of the month, sunrise is at 7:06 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:18 pm EDT.

In Mountain City, the average sunshine duration in September is 8.4h.

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Mountain City, GA

  • Average high temperature in September: 78.4°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (45.3°F).

  • Average low temperature in September: 58.1°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

Average pressure in September
Mountain City, GA

  • Average pressure in September: 30.04"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in September
Mountain City, GA

  • Average wind speed in September: 3.9mph

The windiest months (with the highest average wind speed) are February and April (5.8mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in September
Mountain City, GA

  • Average humidity in September: 77%

The months with the highest relative humidity are February, May and December (79%).
The months with the lowest relative humidity are January and November (75%).

Average rainfall in September
Mountain City, GA

  • Average rainfall in September: 2.83"

The wettest month (with the highest rainfall) is December (5").
The driest month (with the least rainfall) is September (2.83").

Average rainfall days in September
Mountain City, GA

  • Average rainfall days in September: 15.5 days

The month with the highest number of rainy days is July (22.1 days).
The month with the least rainy days is November (10.5 days).

Average snowfall in September
Mountain City, GA

  • Average snowfall in September: 0"

The month with the highest snowfall is December (3.54").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Mountain City, GA

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Mountain City, GA

  • Average daylight in September: 12h and 24min

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 24min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days in September
Mountain City, GA

  • Average sunshine days in September: 11.4 days

The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is July (6.8 days).

Average UV index in September
Mountain City, GA

  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in September
Mountain City, GA

  • Average cloud cover in September: 35

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 31).

Average visibility in September
Mountain City, GA

  • Average visibility in September: 5mi

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