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
Russellville records an average high-temperature of a moderately hot 83.1°F (28.4°C) in September, closely mirroring the climate of the previous month. September brings an average low-temperature of 63.9°F (17.7°C) to Russellville.Heat index
September's average heat index is evaluated at a hot 89.6°F (32°C). With extended exposure and activity, one might feel exhausted and experience heat cramps.Observations indicate that the heat index values are for shady locations with light wind. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
In September, the average relative humidity is 74%.Rainfall
In Russellville, in September, it is raining for 13.6 days, with typically 2.52" (64mm) of accumulated precipitation. Throughout the year, there are 176 rainfall days, and 41.97" (1066mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:16 pm. On the last day of September, sunrise is at 6:45 am and sunset at 6:35 pm CDT.
Sunshine
The average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index in Russellville is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The average daily UV index of 5 in September transforms into the following instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Russellville have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Russellville have in September?
What is the UV index reading in September?
Average temperature in September
Russellville, AL
- Average high temperature in September: 83.1°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (47.8°F).
- Average low temperature in September: 63.9°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).
Average pressure in September
Russellville, AL
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Russellville, AL
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Russellville, AL
- Average humidity in September: 74%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Russellville, AL
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is February (4.57").
The driest month (with the least rainfall) is November (2.44").
Average rainfall days in September
Russellville, AL
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (10.5 days).
Average snowfall in September
Russellville, AL
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Russellville, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.2 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, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Russellville, AL
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in September
Russellville, AL
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Russellville, AL
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 31).
Average visibility in September
Russellville, AL
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, May and July (5mi).
Russellville, Alabama, USA
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