September weather forecastSmelley, AL
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Smelley, Alabama, with an average temperature fluctuating between 64°F (17.8°C) and 84.6°F (29.2°C).Temperature
September's advent denotes a minor fluctuation in the average high-temperature to a warm 84.6°F (29.2°C) from August's 89.1°F (31.7°C). During the nights in September, Smelley experiences a consistent average temperature of 64°F (17.8°C).Heat index
During September, the heat index is calculated to be a hot 93.2°F (34°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Humidity
In Smelley, the average relative humidity in September is 74%.Rainfall
In Smelley, during September, the rain falls for 14 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, there are 176.1 rainfall days, and 38.11" (968mm) of precipitation is accumulated.Snowfall
March through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 6:19 am and sunset at 7:09 pm. On the last day of September, sunrise is at 6:38 am and sunset at 6:29 pm CDT.
Sunshine
In Smelley, the average sunshine in September is 8.6h.UV index
In Smelley, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 5 suggests this advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Smelley, AL
- Average high temperature in September: 84.6°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (50.9°F).
- Average low temperature in September: 64°F
The month with the highest average low temperature is August (69.8°F).
The coldest month (with the lowest average low temperature) is January (35.1°F).
Average pressure in September
Smelley, 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 (29.98"Hg).
Average wind speed in September
Smelley, AL
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).
Average humidity in September
Smelley, 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 (72%).
Average rainfall in September
Smelley, AL
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is August (3.78").
The driest month (with the least rainfall) is October (2.13").
Average rainfall days in September
Smelley, AL
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is July (21.5 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in September
Smelley, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.87").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Smelley, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.4 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
Smelley, AL
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 36min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Smelley, AL
- Average sunshine days in September: 13.3 days
The months with the most sunshine days are October and November (19.5 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in September
Smelley, 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 January (UV index 2).
Average cloud cover in September
Smelley, AL
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June, September and October (Cloud cover 31).
Average visibility in September
Smelley, AL
- 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).
