September weather forecastPostoak, TN
September
Weather in September
September, the first month of the autumn in Postoak, is still a warm month, with an average temperature ranging between min 59.2°F (15.1°C) and max 79.7°F (26.5°C).Temperature
As September arrives, Postoak's weather displays a minor decrease in high-temperatures, transitioning from August's warm 85.5°F (29.7°C) to a still moderately hot 79.7°F (26.5°C). Throughout September, an average low-temperature of 59.2°F (15.1°C) is experienced in Postoak.Humidity
In September, the average relative humidity is 77%.Rainfall
The month with the least rainfall in Postoak is September, when the rain falls for 13.2 days and typically collects 2.32" (59mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Postoak, the average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 7:11 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 7:23 pm EDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In Postoak, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Postoak, TN
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (43.7°F).
- Average low temperature in September: 59.2°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in September
Postoak, TN
- Average pressure in September: 30.03"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
Postoak, TN
- Average wind speed in September: 4mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in September
Postoak, TN
- Average humidity in September: 77%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
Postoak, TN
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is July (4.29").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in September
Postoak, TN
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (10.7 days).
Average snowfall in September
Postoak, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Postoak, TN
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Postoak, 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 30min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 4h and 54min).
Average sunshine days in September
Postoak, TN
- Average sunshine days in September: 14.3 days
The months with the most sunshine days are October and November (18.5 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in September
Postoak, 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
Postoak, TN
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in September
Postoak, TN
- Average visibility in September: 5mi
The months with the highest visibility are April, June, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September and December (5mi).
