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
September's arrival registers an average high-temperature of a moderately hot 85.1°F (29.5°C), closely aligning with the temperature of the previous month. During the month of September, Mount Vernon experiences a steady low-temperature average of 68.2°F (20.1°C).Heat index
September's mean heat index is computed to be a fiery hot 95°F (35°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.Given the heat index, its values are aligned with shaded sites and gentle winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
The months with the highest humidity are August, September and December, with an average relative humidity of 76%.Rainfall
In Mount Vernon, in September, it is raining for 16.1 days, with typically 2.13" (54mm) of accumulated 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 in Mount Vernon.Daylight
In Mount Vernon, the average length of the day in September is 12h and 21min.On the first day of the month, sunrise is at 7:06 am and sunset at 7:54 pm. On the last day of September, in Mount Vernon, sunrise is at 7:24 am and sunset at 7:16 pm EDT.
Sunshine
The average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The average daily UV index of 6 in September transforms into the following instructions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
How hot is 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 long on average sun shines in September in Mount Vernon?
What is the UV index reading 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).
Mount Vernon, Georgia, USA
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