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 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
September's average high-temperature is a still tropical 86.9°F (30.5°C), maintaining a close comparison with August's 90.1°F (32.3°C). Black's nighttime temperature in September falls to an average of 69.6°F (20.9°C).Heat index
Throughout September, the heat index is evaluated at a very hot 100.4°F (38°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.It is important to note that the heat index values are for shaded areas and light wind scenarios. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
In September, the average relative humidity is 75%.Rainfall
The month with the least rainfall in Black is September, when the rain falls for 8.6 days and typically collects 0.28" (7mm) of precipitation.Daylight
The average length of the day in September in Black is 12h and 20min.On the first day of September, sunrise is at 6:19 am and sunset at 7:05 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 6:28 pm CDT.
Sunshine
In Black, Alabama, the average sunshine in September is 8.9h.UV index
In Black, 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 exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 6 in September leads to these recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Frequently asked questions
How hot is September in Black?
What is the average humidity in September in Black?
What is the driest month in Black?
How many days does it rain in September in Black?
How many hours of daylight does Black have in September?
When is the sunrise / sunset in September in Black?
How many hours of sunshine does Black have in September?
What is the UV index reading in September in Black?
Average temperature in September
Black, AL
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (58.8°F).
- Average low temperature in September: 69.6°F
The month with the highest average low temperature is August (74.1°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure in September
Black, AL
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in September
Black, AL
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are January, February and March (7.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Black, AL
- Average humidity in September: 75%
The months with the highest relative humidity are August and December (76%).
The months with the lowest relative humidity are May and October (70%).
Average rainfall in September
Black, AL
- Average rainfall in September: 0.28"
The wettest month (with the highest rainfall) is August (0.98").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in September
Black, AL
- Average rainfall days in September: 8.6 days
The months with the highest number of rainy days are July and August (13.3 days).
The month with the least rainy days is November (4.7 days).
Average daylight in September /
Average sunshine in September
Black, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in September
Black, AL
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is November (24.4 days).
The month with the least sunshine days is July (13.2 days).
Average UV index in September
Black, AL
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Black, AL
- Average cloud cover in September: 29
The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 26).
Average visibility in September
Black, 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).
Black, Alabama, USA
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