September weather forecastArthur, TN
September
Weather in September
September, the first month of the autumn in Arthur, is also a moderately hot month, with temperature in the range of an average high of 78.6°F (25.9°C) and an average low of 56.8°F (13.8°C).Temperature
September signals a slight drop in average high-temperature, sliding from August's 84.6°F (29.2°C) to a still moderately hot 78.6°F (25.9°C). Arthur encounters a significant temperature differential, with an average low-temperature of 56.8°F (13.8°C) during September nights.Humidity
In Arthur, the average relative humidity in September is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 14.1 days and typically collects 2.4" (61mm) of precipitation.Snowfall
In Arthur, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 7:06 am and sunset at 8:02 pm. On the last day of September, sunrise is at 7:29 am and sunset at 7:19 pm EDT.
Sunshine
In September, the average sunshine is 8.3h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The UV index of 5 during September leads to these advisories:
Take precautions - Protection against skin and eye damage is obliged. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Arthur, TN
- Average high temperature in September: 78.6°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in September: 56.8°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in September
Arthur, TN
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Arthur, TN
- Average wind speed in September: 3.9mph
The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in September
Arthur, TN
- Average humidity in September: 78%
The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are June, July, August and November (77%).
Average rainfall in September
Arthur, TN
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is February (4.65").
The driest month (with the least rainfall) is September (2.4").
Average rainfall days in September
Arthur, TN
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is November (11.2 days).
Average snowfall in September
Arthur, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.62").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Arthur, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.9 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
Arthur, 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 18min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Arthur, TN
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is October (16.2 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in September
Arthur, 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, November and December (UV index 2).
Average cloud cover in September
Arthur, TN
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 57).
The months with the least cloud cover are June and August (Cloud cover 33).
Average visibility in September
Arthur, TN
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
