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
As Saint Stephens transitions into September, the average high-temperature stands at a still hot 88.5°F (31.4°C), offering little variation from the preceding month. An average low-temperature of 68°F (20°C) is recorded during the nights in September.Heat index
The average heat index in September is computed to be a blistering 104°F (40°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Given the heat index, its values are aligned with shaded sites and gentle winds. 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 'felt air temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
In Saint Stephens, the average relative humidity in September is 75%.Rainfall
In Saint Stephens, in September, during 16.5 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. In Saint Stephens, during the entire year, the rain falls for 173.9 days and collects up to 35.63" (905mm) of precipitation.Snowfall
In Saint Stephens, snow does not fall in April through November.Daylight
The average length of the day in September is 12h and 21min.On the first day of September, sunrise is at 6:28 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:38 pm CDT.
Sunshine
In Saint Stephens, the average sunshine in September is 8.8h.UV index
In Saint Stephens, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is 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 Saint Stephens have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Saint Stephens have in September?
How high is the UV index in September?
Average temperature in September
Saint Stephens, AL
- Average high temperature in September: 88.5°F
The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is January (56.8°F).
- Average low temperature in September: 68°F
The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in September
Saint Stephens, AL
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Saint Stephens, AL
- Average wind speed in September: 4.4mph
The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).
Average humidity in September
Saint Stephens, AL
- Average humidity in September: 75%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Saint Stephens, AL
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is July (4.41").
The driest month (with the least rainfall) is November (2.05").
Average rainfall days in September
Saint Stephens, AL
- Average rainfall days in September: 16.5 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 days).
Average snowfall in September
Saint Stephens, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.16").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Saint Stephens, 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
Saint Stephens, 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 30min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in September
Saint Stephens, AL
- Average sunshine days in September: 11.5 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (4.4 days).
Average UV index in September
Saint Stephens, AL
- Average UV index in September: 6
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
Saint Stephens, AL
- Average cloud cover in September: 34
The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in September
Saint Stephens, 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).
Saint Stephens, Alabama, USA
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