September weather forecastMason, TN
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Mason, Tennessee, with temperature in the range of an average high of 82.8°F (28.2°C) and an average low of 64°F (17.8°C).Temperature
The weather during September records an average high-temperature of a moderately hot 82.8°F (28.2°C), closely mirroring the preceding month. In Mason, an average nighttime temperature of 64°F (17.8°C) is expected during September.Heat index
Throughout September, the heat index is computed to be a tropical 87.8°F (31°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.When referencing the heat index, its values are suitable for shady environments and light breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. 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 highly important for children. 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 Mason, the average relative humidity in September is 73%.Rainfall
The month with the least rainfall is September, when the rain falls for 9.7 days and typically collects 0.79" (20mm) of precipitation.Snowfall
In Mason, snow does not fall in April through October.Daylight
The average length of the day in September in Mason, Tennessee, is 12h and 23min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:24 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:42 pm CDT.
Sunshine
In September, the average sunshine is 9.6h.UV index
In Mason, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mason, TN
- Average high temperature in September: 82.8°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (45.9°F).
- Average low temperature in September: 64°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).
Average pressure in September
Mason, 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
Mason, TN
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in September
Mason, TN
- Average humidity in September: 73%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Mason, TN
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is July (1.85").
The driest month (with the least rainfall) is September (0.79").
Average rainfall days in September
Mason, TN
- Average rainfall days in September: 9.7 days
The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in September
Mason, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Mason, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Mason, 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 36min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Mason, TN
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is August (13.7 days).
Average UV index in September
Mason, 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 and December (UV index 2).
Average cloud cover in September
Mason, TN
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Mason, 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).
