September weather forecastIndependence, AL
September
Weather in September
The first month of the autumn, September, is still a hot month in Independence, Alabama, with temperature in the range of an average low of 67.1°F (19.5°C) and an average high of 86.9°F (30.5°C).Temperature
September's arrival shows an average high-temperature of a still hot 86.9°F (30.5°C), hardly different from the previous month. Throughout September, Independence experiences a low-temperature average of 67.1°F (19.5°C).Heat index
Throughout September, the heat index is calculated to be a very hot 98.6°F (37°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.When assessing, remember that heat index measurements are for light winds and shaded spots. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant 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.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
The average relative humidity in September is 72%.Rainfall
In Independence, in September, during 14.3 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 168.8 rainfall days, and 38.74" (984mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
In Independence, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:22 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:32 pm CDT.
Sunshine
In Independence, the average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 6 during September translates into the following directions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Independence, AL
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (54.3°F).
- Average low temperature in September: 67.1°F
The month with the highest average low temperature is August (72.1°F).
The coldest month (with the lowest average low temperature) is January (38.3°F).
Average pressure in September
Independence, AL
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Independence, AL
- Average wind speed in September: 5.5mph
The windiest months (with the highest average wind speed) are January and February (7.7mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).
Average humidity in September
Independence, AL
- Average humidity in September: 72%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Independence, AL
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is December (4.02").
The driest month (with the least rainfall) is November (2.28").
Average rainfall days in September
Independence, AL
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is July (21.4 days).
The month with the least rainy days is November (8.1 days).
Average snowfall in September
Independence, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Independence, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Independence, 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 6min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Independence, AL
- Average sunshine days in September: 13.4 days
The months with the most sunshine days are October and November (20.2 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in September
Independence, AL
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Independence, AL
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Independence, 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).
