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 shows an average high-temperature of a warm 84.9°F (29.4°C), hardly different from the previous month. Wilsonville experiences an average nighttime temperature of 69.1°F (20.6°C) in the month of September.Heat index
The average heat index in September is evaluated at a very hot 95°F (35°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Understand that the heat index values take into account shaded locations and mild winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
The months with the highest humidity are August and September, with an average relative humidity of 78%.Rainfall
In September, the rain falls for 13.4 days. Throughout September, 1.1" (28mm) of precipitation is accumulated. Throughout the year, there are 134.6 rainfall days, and 14.84" (377mm) of precipitation is accumulated.Snowfall
In Wilsonville, snow does not fall in February through December.Daylight
The average length of the day in September in Wilsonville is 12h and 21min.On the first day of the month, sunrise is at 7:07 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:16 pm EDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In Wilsonville, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 6 in September translates into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What are the most humid months?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Wilsonville, GA
- Average high temperature in September: 84.9°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (57.9°F).
- Average low temperature in September: 69.1°F
The months with the highest average low temperature are July and August (73.2°F).
The coldest month (with the lowest average low temperature) is January (41.4°F).
Average pressure in September
Wilsonville, GA
- Average pressure in September: 29.99"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
Wilsonville, GA
- Average wind speed in September: 6.1mph
The windiest months (with the highest average wind speed) are March and April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Wilsonville, GA
- Average humidity in September: 78%
The months with the highest relative humidity are August and September (78%).
The months with the lowest relative humidity are January and November (72%).
Average rainfall in September
Wilsonville, GA
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is June (2.24").
The driest month (with the least rainfall) is November (0.51").
Average rainfall days in September
Wilsonville, GA
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is November (5 days).
Average snowfall in September
Wilsonville, GA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Wilsonville, GA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.2 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
Wilsonville, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Wilsonville, GA
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is August (8.8 days).
Average UV index in September
Wilsonville, 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
Wilsonville, GA
- Average cloud cover in September: 34
The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Wilsonville, 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).
Wilsonville, Georgia, USA
Weather forecast for your location
2. Allow the app to use your location