September weather forecastMuscle Shoals, AL
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Muscle Shoals, Alabama, with an average temperature fluctuating between 82.8°F (28.2°C) and 63.5°F (17.5°C).Temperature
September witnesses a gentle descent in average high-temperature, descending from August's tropical 88.3°F (31.3°C) to a moderately hot 82.8°F (28.2°C). Throughout the month of September, Muscle Shoals reports a steady low-temperature average of 63.5°F (17.5°C).Heat index
The heat index value for September is computed to be a tropical 89.6°F (32°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.Heat index details are generally centered around shaded locations and a mild breeze. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Humidity
The average relative humidity in September is 74%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.7 days and typically collects 2.05" (52mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September 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
In September, the average sunshine is 8.9h.UV index
In Muscle Shoals, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Muscle Shoals, AL
- Average high temperature in September: 82.8°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (47.7°F).
- Average low temperature in September: 63.5°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 (33.3°F).
Average pressure in September
Muscle Shoals, AL
- Average pressure in September: 30.02"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
Muscle Shoals, AL
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is February (8.4mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).
Average humidity in September
Muscle Shoals, AL
- Average humidity in September: 74%
The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Muscle Shoals, AL
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is February (3.58").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in September
Muscle Shoals, AL
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in September
Muscle Shoals, AL
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Muscle Shoals, 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
Muscle Shoals, AL
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).
Average sunshine days in September
Muscle Shoals, AL
- Average sunshine days in September: 15.2 days
The months with the most sunshine days are October and November (18.8 days).
The month with the least sunshine days is July (10.4 days).
Average UV index in September
Muscle Shoals, AL
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Muscle Shoals, AL
- Average cloud cover in September: 30
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
Muscle Shoals, 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).
