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 records an average high-temperature of a still tropical 88.5°F (31.4°C), a near match to August's 91.9°F (33.3°C). Chatom experiences an average temperature drop to an agreeable 69.1°F (20.6°C) during September nights.Heat index
During September, the heat index is estimated at a blistering 105.8°F (41°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.One should consider that heat index numbers are for shaded settings and light wind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. 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 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.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
In Chatom, the average relative humidity in September is 76%.Rainfall
In Chatom, during September, the rain falls for 17.5 days and regularly aggregates up to 3.03" (77mm) of precipitation. In Chatom, during the entire year, the rain falls for 180.8 days and collects up to 38.43" (976mm) of precipitation.Snowfall
In Chatom, snow does not fall in March through November.Daylight
In September, the average length of the day is 12h and 21min.On the first day of September, sunrise is at 6:29 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:38 pm CDT.
Sunshine
In September, the average sunshine is 8.9h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Act with care - The need to guard against sun damage is communicated. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. 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
How hot is it in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Chatom have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Chatom have in September?
How high is the UV index in September?
Average temperature in September
Chatom, AL
- Average high temperature in September: 88.5°F
The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is January (58.1°F).
- Average low temperature in September: 69.1°F
The month with the highest average low temperature is August (73.6°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).
Average pressure in September
Chatom, AL
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Chatom, AL
- Average wind speed in September: 4.3mph
The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest months (with the lowest average wind speed) are July and August (4mph).
Average humidity in September
Chatom, AL
- Average humidity in September: 76%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Chatom, AL
- Average rainfall in September: 3.03"
The wettest month (with the highest rainfall) is August (5.08").
The driest month (with the least rainfall) is November (2.13").
Average rainfall days in September
Chatom, AL
- Average rainfall days in September: 17.5 days
The month with the highest number of rainy days is July (24.7 days).
The month with the least rainy days is November (8.3 days).
Average snowfall in September
Chatom, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.31").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Chatom, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Chatom, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days in September
Chatom, AL
- Average sunshine days in September: 10 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is July (5 days).
Average UV index in September
Chatom, AL
- Average UV index in September: 5
The months with the highest UV index are 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
Chatom, AL
- Average cloud cover in September: 33
The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Chatom, AL
- Average visibility in September: 5mi
The months with the highest visibility are June and October (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September, November and December (5mi).
Chatom, Alabama, USA
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