Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The transition into September subtly indicates a reduction in the average high-temperature, down to a still moderately hot 79.7°F (26.5°C) from August's 85.5°F (29.7°C). During the month of September, the temperature in Postoak falls to an average of 59.2°F (15.1°C).Humidity
The average relative humidity in September in Postoak is 77%.Rainfall
September is the month with the least rainfall. Rain falls for 13.2 days and accumulates 2.32" (59mm) of precipitation.Snowfall
In Postoak, snow does not fall in May through October.Daylight
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
In Postoak, 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 vulnerability from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 5 in September translates into this advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Frequently asked questions
What is the average September temperature in Postoak?
What is the average humidity in September in Postoak?
What is the driest month in Postoak?
How much does it rain in Postoak in September?
When it does not snow in Postoak?
What is the average length of the day in September in Postoak?
When is the sunrise / sunset in September in Postoak?
How long on average sun shines in September in Postoak?
What is the UV index reading in September in Postoak?
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 2min
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 3min
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).
Postoak, Tennessee, USA
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