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
September's presence records an average high-temperature of a still warm 80.2°F (26.8°C), closely mirroring August's climate. Blair Gap's average nighttime temperature descends significantly from the day's peak in September, settling at a moderate 56.5°F (13.6°C).Humidity
In September, the average relative humidity in Blair Gap is 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.4 days and typically collects 1.02" (26mm) of precipitation.Snowfall
May through October are months without snowfall in Blair Gap.Daylight
The average length of the day in September in Blair Gap is 12h and 24min.On the first day of September, sunrise is at 7:02 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:15 pm EDT.
Sunshine
In September, the average sunshine in Blair Gap, Tennessee, is 8.7h.UV index
In Blair Gap, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A typical high UV index of 5 in September suggests the following recommendations:
Exercise prevention - Warding off sunburn is urged. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. 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
What is the usual temperature for Blair Gap in September?
What is the average humidity in September in Blair Gap?
What is the driest month in Blair Gap?
How many days does it rain in September in Blair Gap?
When it does not snow in Blair Gap?
How many hours of daylight does Blair Gap have in September?
What time are sunrise and sunset in September in Blair Gap?
How many hours of sunshine does Blair Gap have in September?
How high is the UV index in September in Blair Gap?
Average temperature in September
Blair Gap, TN
- Average high temperature in September: 80.2°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (42.4°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure in September
Blair Gap, TN
- Average pressure in September: 30.05"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
Blair Gap, TN
- Average wind speed in September: 4.1mph
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
Blair Gap, TN
- Average humidity in September: 75%
The months with the highest relative humidity are February and December (79%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in September
Blair Gap, TN
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is February (3.15").
The driest month (with the least rainfall) is September (1.02").
Average rainfall days in September
Blair Gap, TN
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in September
Blair Gap, TN
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Blair Gap, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.9 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
Blair Gap, 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 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in September
Blair Gap, TN
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in September
Blair Gap, 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
Blair Gap, TN
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Blair Gap, TN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and May (5mi).
Blair Gap, Tennessee, USA
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