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
During the shift to September, Mount Sulphur records a mild decrease in average high-temperature, moving from a moderately hot 85.6°F (29.8°C) in August to a still warm 79.9°F (26.6°C). An average minimum temperature of 59.2°F (15.1°C) marks the month of September.Humidity
In September, the average relative humidity in Mount Sulphur, Tennessee, is 77%.Rainfall
The month with the least rainfall in Mount Sulphur is September, when the rain falls for 13.1 days and typically collects 2.52" (64mm) of precipitation.Snowfall
May through October are months without snowfall in Mount Sulphur.Daylight
In September, the average length of the day in Mount Sulphur, Tennessee, is 12h and 23min.On the first day of the month, sunrise is at 7:11 am and sunset at 8:06 pm. On the last day of September, in Mount Sulphur, sunrise is at 7:34 am and sunset at 7:23 pm EDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In Mount Sulphur, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What are September temperatures in Mount Sulphur?
What is the average humidity in September in Mount Sulphur?
What is the driest month in Mount Sulphur?
How much does it rain in Mount Sulphur in September?
When it does not snow in Mount Sulphur?
What is the average length of the day in September in Mount Sulphur?
When are sunrise and sunset in September in Mount Sulphur?
How long on average sun shines in September in Mount Sulphur?
What is the UV index intensity in September in Mount Sulphur?
Average temperature in September
Mount Sulphur, TN
- Average high temperature in September: 79.9°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (44.6°F).
- Average low temperature in September: 59.2°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure in September
Mount Sulphur, 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
Mount Sulphur, TN
- Average wind speed in September: 4.2mph
The windiest months (with the highest average wind speed) are February and April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).
Average humidity in September
Mount Sulphur, TN
- Average humidity in September: 77%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in September
Mount Sulphur, TN
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is July (4.21").
The driest month (with the least rainfall) is September (2.52").
Average rainfall days in September
Mount Sulphur, TN
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in September
Mount Sulphur, TN
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Mount Sulphur, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.8 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
Mount Sulphur, TN
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
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 month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Mount Sulphur, TN
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (10 days).
Average UV index in September
Mount Sulphur, 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
Mount Sulphur, 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
Mount Sulphur, TN
- Average visibility in September: 5mi
The months with the highest visibility are February, April, June, October and November (6mi).
The months with the lowest visibility are January, March, May, July, August, September and December (5mi).
Mount Sulphur, Tennessee, USA
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