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 onset of September brings a small shift in high-temperatures, falling from a moderately hot 85.5°F (29.7°C) in August to a still warm 79.9°F (26.6°C). Contrasted against daytime highs, Russellville records an average nighttime low of 57.9°F (14.4°C) in September.Humidity
The average relative humidity in September is 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.3 days and typically collects 1.73" (44mm) of precipitation.Snowfall
In Russellville, snow does not fall in May through September.Daylight
In Russellville, the average length of the day in September is 12h and 24min.On the first day of September in Russellville, sunrise is at 7:04 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 7:17 pm EDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Put precautions into practice - Guidance to elude sunburn is provided. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Russellville have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Russellville have in September?
What is the UV index intensity in September?
Average temperature in September
Russellville, TN
- Average high temperature in September: 79.9°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (43.2°F).
- Average low temperature in September: 57.9°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).
Average pressure in September
Russellville, TN
- Average pressure in September: 30.05"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Russellville, TN
- Average wind speed in September: 3.9mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in September
Russellville, TN
- Average humidity in September: 75%
The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Russellville, TN
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is February (3.66").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in September
Russellville, TN
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is November (10.6 days).
Average snowfall in September
Russellville, TN
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.83").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Russellville, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.3 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
Russellville, 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 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Russellville, TN
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in September
Russellville, 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
Russellville, TN
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 27).
Average visibility in September
Russellville, TN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Russellville, Tennessee, USA
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