September weather forecastRussellville, KY
September
Weather in September
September, the first month of the autumn in Russellville, is still a warm month, with temperature in the range of an average low of 61.3°F (16.3°C) and an average high of 80.1°F (26.7°C).Temperature
September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from 85.8°F (29.9°C) in August to a still warm 80.1°F (26.7°C). Russellville temperatures generally rest at a low of 61.3°F (16.3°C) during the September nights.Humidity
In Russellville, the average relative humidity in September is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 11 days and accumulates 0.83" (21mm) of precipitation.Snowfall
In Russellville, snow does not fall in May through November.Daylight
In Russellville, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 6:19 am and sunset at 7:15 pm. On the last day of September, sunrise is at 6:42 am and sunset at 6:31 pm CDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
The average daily maximum UV index in September in Russellville is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 5 during September leads to these instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Russellville, KY
- Average high temperature in September: 80.1°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (42.1°F).
- Average low temperature in September: 61.3°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in September
Russellville, KY
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Russellville, KY
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
Russellville, KY
- Average humidity in September: 75%
The months with the highest relative humidity are March, May and December (79%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Russellville, KY
- Average rainfall in September: 0.83"
The wettest month (with the highest rainfall) is July (2.05").
The driest month (with the least rainfall) is September (0.83").
Average rainfall days in September
Russellville, KY
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in September
Russellville, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.28").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in September
Russellville, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.9 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
Russellville, KY
- Average daylight in September: 12h and 24min
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 48min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in September
Russellville, KY
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in September
Russellville, KY
- 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, KY
- Average cloud cover in September: 31
The months with the most cloud cover are January and February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in September
Russellville, KY
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
