September weather forecast
Mount Vernon, GA

Weather in September

September, the first month of the autumn in Mount Vernon, is also a moderately hot month, with an average temperature varying between 85.1°F (29.5°C) and 68.2°F (20.1°C).

Temperature

In September, the average high-temperature is relatively the same as in August - a warm 85.1°F (29.5°C). In Mount Vernon, Georgia, in September, the average low-temperature is 68.2°F (20.1°C).

Heat index

In September, the average heat index is calculated to be a very hot 95°F (35°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
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 'felt air temperature', 'apparent temperature', 'feels like', or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, clothing, 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 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.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The months with the highest humidity in Mount Vernon are August, September and December, with an average relative humidity of 76%.

Rainfall

In Mount Vernon, during September, the rain falls for 16.1 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, there are 174.5 rainfall days, and 34.13" (867mm) of precipitation is accumulated.

Snowfall

March through December are months without snowfall.

Daylight

The average length of the day in September in Mount Vernon is 12h and 21min.
On the first day of the month, sunrise is at 7:05 am and sunset at 7:55 pm. On the last day of September, in Mount Vernon, sunrise is at 7:23 am and sunset at 7:17 pm EDT.

Sunshine

In Mount Vernon, the average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The daily maximum UV index of 6 in September interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
[Resources]

FAQ

What is the temperature in September in Mount Vernon?

In September, in Mount Vernon, the average high-temperature is 85.1°F (29.5°C), and the average low-temperature is 68.2°F (20.1°C). in September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, is calculated to be 95°F (35°C).

What is the most humid month in Mount Vernon?

August, September and December, with an average relative humidity of 76%, are most humid months in Mount Vernon, Georgia.

What is the average humidity in September in Mount Vernon?

In Mount Vernon, the average relative humidity in September is 76%.

How much does it rain in Mount Vernon in September?

In September, in Mount Vernon, the rain falls for 16.1 days. Throughout September, 2.13" (54mm) of precipitation is accumulated.

When it does not snow in Mount Vernon?

March through December are months without snowfall in Mount Vernon.

What is the average length of the day in September in Mount Vernon?

In September, the average day length is 12h and 21min.

What time are sunrise and sunset in September in Mount Vernon?

In September, on the first day of the month, sunrise is at 7:05 am and sunset at 7:55 pm. On the last day of the month, in Mount Vernon, Georgia, sunrise is at 7:23 am and sunset at 7:17 pm EDT.

How many hours of sunshine does Mount Vernon have in September?

The average sunshine duration in September is 8.6h.

What is the UV index intensity in September in Mount Vernon?

In September, the average daily maximum UV index in Mount Vernon is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
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
Mount Vernon, GA

Average temperature in September - Mount Vernon, GA
  • Average high temperature in September: 85.1°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 (56.8°F).

  • Average low temperature in September: 68.2°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (40.5°F).

[Resources]

Average pressure in September
Mount Vernon, GA

Average pressure in September - Mount Vernon, GA
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).

[Resources]

Average wind speed in September
Mount Vernon, GA

Average wind speed in September - Mount Vernon, GA
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

[Resources]

Average humidity in September
Mount Vernon, GA

Average humidity in September - Mount Vernon, GA
  • Average humidity in September: 76%

The months with the highest relative humidity are August, September and December (76%).
The months with the lowest relative humidity are January and November (71%).

[Resources]

Average rainfall in September
Mount Vernon, GA

Average rainfall in September - Mount Vernon, GA
  • Average rainfall in September: 2.13"

The wettest month (with the highest rainfall) is August (3.9").
The driest month (with the least rainfall) is November (1.77").

[Resources]

Average rainfall days in September
Mount Vernon, GA

Average rainfall days in September - Mount Vernon, GA
  • Average rainfall days in September: 16.1 days

The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is November (8.2 days).

[Resources]

Average snowfall in September
Mount Vernon, GA

Average snowfall in September - Mount Vernon, GA
  • Average snowfall in September: 0"

The months with the highest snowfall are January and February (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

[Resources]

Average snowfall days in September
Mount Vernon, GA

Average snowfall days in September - Mount Vernon, GA
  • Average snowfall days in September: 0 days

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

[Resources]

Average daylight in September /
Average sunshine in September
Mount Vernon, GA

Average daylight in September / Average sunshine in September - Mount Vernon, 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 July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

[Resources]

Average sunshine days in September
Mount Vernon, GA

Average sunshine days in September - Mount Vernon, GA
  • Average sunshine days in September: 11.1 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (5.4 days).

[Resources]

Average UV index in September
Mount Vernon, GA

Average UV index in September - Mount Vernon, GA
  • Average UV index in September: 6

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

[Resources]

Average cloud cover in September
Mount Vernon, GA

Average cloud cover in September - Mount Vernon, GA
  • Average cloud cover in September: 31

The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 28).

[Resources]

Average visibility in September
Mount Vernon, GA

Average visibility in September - Mount Vernon, 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location