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
Fairnelson's September average high-temperature settles at a still hot 87.4°F (30.8°C), showing a near match with the preceding month. In September, the average low-temperature in Fairnelson records at an agreeable 68°F (20°C) during the nights.Heat index
The average heat index in September is estimated at a very hot 102.2°F (39°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.The standards for the heat index are set for locations in shade and under light breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.
Humidity
The average relative humidity in September is 75%.Rainfall
In Fairnelson, in September, during 16.6 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. In Fairnelson, during the entire year, the rain falls for 176.5 days and collects up to 37.72" (958mm) of precipitation.Snowfall
In Fairnelson, snow does not fall in April through November.Daylight
In Fairnelson, the average length of the day in September is 12h and 21min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:11 pm. On the last day of September, in Fairnelson, sunrise is at 6:41 am and sunset at 6:34 pm CDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In September, a daily UV index of 6 turns into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
How hot is September in Fairnelson?
What is the average humidity in September in Fairnelson?
How much does it rain in Fairnelson in September?
When it does not snow in Fairnelson?
What is the average length of the day in September in Fairnelson?
When are sunrise and sunset in September in Fairnelson?
How long on average sun shines in September in Fairnelson?
How high is the UV index in September in Fairnelson?
Average temperature in September
Fairnelson, AL
- Average high temperature in September: 87.4°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (57.6°F).
- Average low temperature in September: 68°F
The months with the highest average low temperature are July and August (72.3°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).
Average pressure in September
Fairnelson, 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 and August (29.97"Hg).
Average wind speed in September
Fairnelson, AL
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is March (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).
Average humidity in September
Fairnelson, AL
- Average humidity in September: 75%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Fairnelson, AL
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is August (4.72").
The driest month (with the least rainfall) is November (2.13").
Average rainfall days in September
Fairnelson, AL
- Average rainfall days in September: 16.6 days
The month with the highest number of rainy days is July (23.9 days).
The month with the least rainy days is November (7.6 days).
Average snowfall in September
Fairnelson, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.28").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Fairnelson, 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 and October (0 days).
Average daylight in September /
Average sunshine in September
Fairnelson, 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 month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Fairnelson, AL
- Average sunshine days in September: 11.4 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is July (5.1 days).
Average UV index in September
Fairnelson, AL
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Fairnelson, AL
- Average cloud cover in September: 33
The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Fairnelson, 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).
Fairnelson, Alabama, USA
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