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
September's onset brings a negligible change in high-temperatures, falling from a tropical 88.9°F (31.6°C) in August to a moderately hot 83.5°F (28.6°C). An average low-temperature of 64°F (17.8°C) is recorded in the month of September.Heat index
September's average heat index is evaluated at a tropical 91.4°F (33°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Always consider that heat index estimations are for light winds and places in the shade. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
The average relative humidity in September is 74%.Rainfall
In September, the rain falls for 14.3 days. Throughout September, 2.87" (73mm) of precipitation is accumulated. Throughout the year, there are 174.9 rainfall days, and 42.99" (1092mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:23 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:34 pm CDT.
Sunshine
The average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Barnett Chapel have in September?
What is the UV index intensity in September?
Average temperature in September
Barnett Chapel, AL
- Average high temperature in September: 83.5°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in September: 64°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (34°F).
Average pressure in September
Barnett Chapel, 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
Barnett Chapel, AL
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Barnett Chapel, 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
Barnett Chapel, AL
- Average rainfall in September: 2.87"
The wettest month (with the highest rainfall) is December (4.45").
The driest month (with the least rainfall) is November (2.4").
Average rainfall days in September
Barnett Chapel, AL
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (10.3 days).
Average snowfall in September
Barnett Chapel, 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
Barnett Chapel, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 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
Barnett Chapel, 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 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
Barnett Chapel, AL
- Average sunshine days in September: 13.1 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is August (9.3 days).
Average UV index in September
Barnett Chapel, 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
Barnett Chapel, AL
- Average cloud cover in September: 31
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Barnett Chapel, 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).
Barnett Chapel, Alabama, USA
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