September weather forecastAlexander Mill, TN
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Alexander Mill, Tennessee, with an average temperature ranging between min 56.5°F (13.6°C) and max 79°F (26.1°C).Temperature
The average high-temperature during September is a still moderately hot 79°F (26.1°C), almost matching the conditions of the preceding month. Alexander Mill, after hot September days, encounters a marked drop to an average nighttime temperature of 56.5°F (13.6°C).Humidity
In September, the average relative humidity in Alexander Mill is 76%.Rainfall
September is the month with the least rainfall. Rain falls for 14.2 days and accumulates 1.65" (42mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Alexander Mill, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 7:03 am and sunset at 7:58 pm. On the last day of September, in Alexander Mill, Tennessee, sunrise is at 7:25 am and sunset at 7:15 pm EDT.
Sunshine
The average sunshine in September in Alexander Mill is 8.7h.UV index
In September, the average daily maximum UV index in Alexander Mill is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. 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
Alexander Mill, TN
- Average high temperature in September: 79°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (43.2°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in September
Alexander Mill, TN
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Alexander Mill, TN
- Average wind speed in September: 3.9mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in September
Alexander Mill, TN
- Average humidity in September: 76%
The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in September
Alexander Mill, TN
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is February (3.39").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in September
Alexander Mill, TN
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (11.4 days).
Average snowfall in September
Alexander Mill, TN
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Alexander Mill, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Alexander Mill, TN
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Alexander Mill, TN
- Average sunshine days in September: 13.3 days
The month with the most sunshine days is October (16.7 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in September
Alexander Mill, TN
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Alexander Mill, TN
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in September
Alexander Mill, TN
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
