September weather forecastThomson, GA
September
Weather in September
September, the first month of the autumn in Thomson, is also a moderately hot month, with an average temperature fluctuating between 66.4°F (19.1°C) and 85.5°F (29.7°C).Temperature
September ushers in an average high-temperature of a moderately hot 85.5°F (29.7°C), aligning closely with the preceding month. During the nights in September, an average low-temperature of 66.4°F (19.1°C) is observed.Heat index
September's mean heat index is appraised at a very hot 95°F (35°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.Heat index evaluations are typically in the context of light winds and shaded environments. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical 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 primarily vital for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
In Thomson, the average relative humidity in September is 72%.Rainfall
September is the month with the least rainfall. Rain falls for 12.8 days and accumulates 1.97" (50mm) of precipitation.Snowfall
In Thomson, snow does not fall in April through November.Daylight
In September, the average length of the day in Thomson is 12h and 22min.On the first day of the month, sunrise is at 7:04 am and sunset at 7:54 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:15 pm EDT.
Sunshine
In Thomson, the average sunshine in September is 8.3h.UV index
In September, the average daily maximum UV index in Thomson is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 6 during September translates into the following directions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Thomson, GA
- Average high temperature in September: 85.5°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (53.6°F).
- Average low temperature in September: 66.4°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).
Average pressure in September
Thomson, GA
- Average pressure in September: 30.02"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Thomson, GA
- Average wind speed in September: 5.7mph
The windiest months (with the highest average wind speed) are January and February (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Thomson, GA
- Average humidity in September: 72%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are July, October and November (71%).
Average rainfall in September
Thomson, GA
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in September
Thomson, GA
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is August (18.3 days).
The month with the least rainy days is November (8.2 days).
Average snowfall in September
Thomson, GA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.75").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Thomson, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.7 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Thomson, 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 18min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
Thomson, GA
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is October (21.1 days).
The month with the least sunshine days is August (10.8 days).
Average UV index in September
Thomson, GA
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Thomson, GA
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in September
Thomson, 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).





