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 advent of September brings a slight shift in average high-temperature, moving from a warm 84.7°F (29.3°C) in August to a still moderately hot 78.6°F (25.9°C). Throughout September, a steady low-temperature average of 57.2°F (14°C) is noted.Humidity
In Thorn Hill, the average relative humidity in September is 77%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.9 days and typically collects 2.32" (59mm) of precipitation.Snowfall
May through September are months without snowfall in Thorn Hill.Daylight
The average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 7:05 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:18 pm EDT.
Sunshine
The average sunshine in September is 8.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the UV index of 5 transforms into the following advice:
Take measures. Individuals with light skin might experience burns in under 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
What is the driest month in Thorn Hill?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Thorn Hill have in September?
What is the UV index intensity in September?
Average temperature in September
Thorn Hill, TN
- Average high temperature in September: 78.6°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in September: 57.2°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in September
Thorn Hill, 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
Thorn Hill, TN
- Average wind speed in September: 3.9mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in September
Thorn Hill, TN
- Average humidity in September: 77%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (76%).
Average rainfall in September
Thorn Hill, TN
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is February (4.72").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in September
Thorn Hill, TN
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (10.4 days).
Average snowfall in September
Thorn Hill, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Thorn Hill, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Thorn Hill, 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 42min).
- Average sunshine in September: 8h and 2min
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 24min).
Average sunshine days in September
Thorn Hill, TN
- Average sunshine days in September: 14 days
The month with the most sunshine days is October (16.7 days).
The months with the least sunshine days are February and July (10 days).
Average UV index in September
Thorn Hill, 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
Thorn Hill, TN
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility in September
Thorn Hill, TN
- Average visibility in September: 5mi
The months with the highest visibility are June, August and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, September, October and December (5mi).
Thorn Hill, Tennessee, USA
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