September weather forecastSimpson, GA
September
Weather in September
September, the first month of the autumn in Simpson, is still a warm month, with an average temperature ranging between min 63.7°F (17.6°C) and max 83.3°F (28.5°C).Temperature
The average high-temperature is a warm 83.3°F (28.5°C) in September, hardly different from the 87.4°F (30.8°C) recorded in August. Simpson's nights in September experience an average temperature drop to an enjoyable 63.7°F (17.6°C).Heat index
September's average heat index is estimated at a tropical 91.4°F (33°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.Heat index evaluations are typically in the context of light winds and shaded environments. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
In Simpson, the average relative humidity in September is 76%.Rainfall
In Simpson, in September, during 14.4 rainfall days, 2.87" (73mm) of precipitation is typically accumulated. In Simpson, during the entire year, the rain falls for 182.8 days and collects up to 41.5" (1054mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Simpson, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 7:15 am and sunset at 8:05 pm. On the last day of September, sunrise is at 7:34 am and sunset at 7:26 pm EDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In Simpson, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 5 during September translates into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Simpson, GA
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (50.5°F).
- Average low temperature in September: 63.7°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).
Average pressure in September
Simpson, GA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Simpson, GA
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Simpson, GA
- Average humidity in September: 76%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are October and November (74%).
Average rainfall in September
Simpson, GA
- Average rainfall in September: 2.87"
The wettest month (with the highest rainfall) is August (4.92").
The driest month (with the least rainfall) is October (2.09").
Average rainfall days in September
Simpson, GA
- Average rainfall days in September: 14.4 days
The month with the highest number of rainy days is July (23.2 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in September
Simpson, GA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Simpson, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.3 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
Simpson, GA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 30min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Simpson, GA
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (6.3 days).
Average UV index in September
Simpson, GA
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Simpson, GA
- Average cloud cover in September: 33
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility in September
Simpson, GA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, October and November (6mi).
The months with the lowest visibility are July, August, September and December (5mi).
