September weather forecastPiney Flats, TN
September
Weather in September
September, the first month of the autumn in Piney Flats, is still a warm month, with an average temperature varying between 54.9°F (12.7°C) and 78.1°F (25.6°C).Temperature
Piney Flats, Tennessee, marks the onset of September with an average high-temperature of a still warm 78.1°F (25.6°C), subtly divergent from August's 82.9°F (28.3°C). Piney Flats documents a substantial deviation from daytime highs with a consistent low-temperature of 54.9°F (12.7°C) during September nights.Humidity
In September, the average relative humidity in Piney Flats, Tennessee, is 76%.Rainfall
The month with the least rainfall is September, when the rain falls for 13 days and typically collects 1.18" (30mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Piney Flats, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 7:01 am and sunset at 7:56 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:13 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In Piney Flats, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Take precautions - Protection against sunburn is recommended. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Piney Flats, TN
- Average high temperature in September: 78.1°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (41.7°F).
- Average low temperature in September: 54.9°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in September
Piney Flats, TN
- Average pressure in September: 30.06"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
Piney Flats, TN
- Average wind speed in September: 4.2mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in September
Piney Flats, TN
- Average humidity in September: 76%
The months with the highest relative humidity are February and December (79%).
The months with the lowest relative humidity are July, August and November (75%).
Average rainfall in September
Piney Flats, TN
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is February (3.03").
The driest month (with the least rainfall) is September (1.18").
Average rainfall days in September
Piney Flats, TN
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in September
Piney Flats, TN
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Piney Flats, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Piney Flats, 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 42min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Piney Flats, TN
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (11 days).
Average UV index in September
Piney Flats, TN
- Average UV index in September: 4
The months with the highest UV index are 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
Piney Flats, TN
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Piney Flats, TN
- Average visibility in September: 5mi
The months with the highest visibility are April, July, October and November (6mi).
The months with the lowest visibility are January, February, March, May, June, August, September and December (5mi).
