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
With the onset of September, the average high-temperature registers at a still hot 88.5°F (31.4°C), subtly different from August's 92.1°F (33.4°C). Alma's temperature tends to fall to an average low of 68°F (20°C) during the nights of September.Heat index
The average heat index in September is estimated at a blisteringly hot 104°F (40°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.
Humidity
In September, the average relative humidity is 75%.Rainfall
In Alma, in September, during 16.5 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. Throughout the year, in Alma, there are 173.9 rainfall days, and 35.63" (905mm) of precipitation is accumulated.Snowfall
In Alma, Alabama, snow does not fall in April through November.Daylight
The average length of the day in September in Alma, Alabama, is 12h and 21min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:14 pm. On the last day of September, in Alma, Alabama, sunrise is at 6:44 am and sunset at 6:36 pm CDT.
Sunshine
In Alma, the average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: An average UV index of 6 in September transforms into this advice:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. 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. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
How hot is it in Alma in September?
What is the average humidity in September in Alma?
How many days does it rain in September in Alma?
When it does not snow in Alma?
What is the average length of the day in September in Alma?
When are sunrise and sunset in September in Alma?
How long on average sun shines in September in Alma?
How high is the UV index in September in Alma?
Average temperature in September
Alma, 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
Alma, 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
Alma, 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
Alma, 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
Alma, 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
Alma, 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
Alma, 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
Alma, 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
Alma, 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
Alma, 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
Alma, 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
Alma, 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
Alma, 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).
Alma, Alabama, USA
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