September weather forecastArlington, TN
September
Weather in September
September, the first month of the autumn in Arlington, is still a warm month, with an average temperature varying between 64.6°F (18.1°C) and 83.3°F (28.5°C).Temperature
Transitioning into September, Arlington experiences an average high-temperature of a moderately hot 83.3°F (28.5°C), marking a minor shift from the preceding month. Arlington, during the month of September, experiences an average low-temperature of 64.6°F (18.1°C).Heat index
For September, the heat index is estimated at a tropical 89.6°F (32°C). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are of high significance for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Humidity
In Arlington, the average relative humidity in September is 72%.Rainfall
January and September are months with the least rain in Arlington when the rain falls for 12 days and typically aggregates up to 1.26" (32mm) of rain.Snowfall
In Arlington, snow does not fall in April through October.Daylight
In Arlington, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:25 pm. On the last day of September, sunrise is at 6:53 am and sunset at 6:43 pm CDT.
Sunshine
In Arlington, the average sunshine in September is 9.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: An average UV index of 5 in September transforms into this advice:
Take precautions - Protection against sun damage is advised. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Arlington, TN
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (46.4°F).
- Average low temperature in September: 64.6°F
The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in September
Arlington, TN
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Arlington, TN
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is February (9.2mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).
Average humidity in September
Arlington, TN
- Average humidity in September: 72%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Arlington, TN
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is April (2.8").
The driest months (with the least rainfall) are January and September (1.26").
Average rainfall days in September
Arlington, TN
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in September
Arlington, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Arlington, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Arlington, TN
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 9h and 42min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Arlington, TN
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is October (20.9 days).
The months with the least sunshine days are July and August (12.3 days).
Average UV index in September
Arlington, TN
- Average UV index in September: 5
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
Arlington, TN
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are June and August (Cloud cover 25).
Average visibility in September
Arlington, TN
- 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).
