September weather forecastByrdstown, TN
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Byrdstown, Tennessee, with an average temperature ranging between max 79.7°F (26.5°C) and min 59.4°F (15.2°C).Temperature
September signifies a gentle decline in Byrdstown's average high-temperature, easing from a warm 85.3°F (29.6°C) in August to a still moderately hot 79.7°F (26.5°C). The average temperature in Byrdstown during September nights dips to a mild 59.4°F (15.2°C).Humidity
The average relative humidity in September is 77%.Rainfall
In Byrdstown, in September, during 12.6 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. In Byrdstown, during the entire year, the rain falls for 162.3 days and collects up to 28.23" (717mm) of precipitation.Snowfall
In Byrdstown, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 24min.On the first day of the month, sunrise is at 6:12 am and sunset at 7:08 pm. On the last day of September, sunrise is at 6:35 am and sunset at 6:24 pm CDT.
Sunshine
In September, the average sunshine in Byrdstown, Tennessee, is 8.2h.UV index
The average daily maximum UV index in September in Byrdstown, Tennessee, is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In September, a regular UV index of 5 translates into these guidelines:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Byrdstown, TN
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (42.3°F).
- Average low temperature in September: 59.4°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).
Average pressure in September
Byrdstown, TN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Byrdstown, TN
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Byrdstown, TN
- Average humidity in September: 77%
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are June, August, October and November (76%).
Average rainfall in September
Byrdstown, TN
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is February (3.19").
The driest month (with the least rainfall) is November (1.65").
Average rainfall days in September
Byrdstown, TN
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is November (9.8 days).
Average snowfall in September
Byrdstown, TN
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Byrdstown, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Byrdstown, 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 42min).
- Average sunshine in September: 8h and 12min
The months with the most sunshine are June and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in September
Byrdstown, TN
- Average sunshine days in September: 15 days
The month with the most sunshine days is November (18.5 days).
The months with the least sunshine days are May, June and July (11.3 days).
Average UV index in September
Byrdstown, TN
- Average UV index in September: 5
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
Byrdstown, TN
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Byrdstown, TN
- Average visibility in September: 5mi
The months with the highest visibility are February, April, June, October, November and December (6mi).
The months with the lowest visibility are January, March, May, July, August and September (5mi).
