Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
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.
FAQ
What is the temperature in September in Mount Vernon?
What is the most humid month in Mount Vernon?
What is the average humidity in September in Mount Vernon?
How much does it rain in Mount Vernon in September?
When it does not snow in Mount Vernon?
What is the average length of the day in September in Mount Vernon?
What time are sunrise and sunset in September in Mount Vernon?
How many hours of sunshine does Mount Vernon have in September?
What is the UV index intensity in September in Mount Vernon?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
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