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 brings a slight decrease in temperature, down from a hot 86.4°F (30.2°C) in August to a warm 81°F (27.2°C). The mean low-temperature during September nights is an enjoyable 61.3°F (16.3°C).Heat index
In September, the average heat index is calculated to be a hot 86°F (30°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.Factoring in the heat index, values are geared towards shaded areas with light breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Humidity
In September, the average relative humidity is 77%.Rainfall
In September, the rain falls for 15.4 days. Throughout September, 3.11" (79mm) of precipitation is accumulated. Throughout the year, there are 191.1 rainfall days, and 48.94" (1243mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September is 12h and 23min.On the first day of September in Henagar, sunrise is at 6:16 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 6:28 pm CDT.
Sunshine
In Henagar, the average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 5 during September leads to these advisories:
Take precautions - Protection against sun damage is advised. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Henagar have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Henagar have in September?
What is the UV index intensity in September?
Average temperature in September
Henagar, AL
- Average high temperature in September: 81°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (46.8°F).
- Average low temperature in September: 61.3°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (31.8°F).
Average pressure in September
Henagar, AL
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Henagar, AL
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).
Average humidity in September
Henagar, AL
- Average humidity in September: 77%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Henagar, AL
- Average rainfall in September: 3.11"
The wettest month (with the highest rainfall) is July (5.24").
The driest month (with the least rainfall) is November (2.76").
Average rainfall days in September
Henagar, AL
- Average rainfall days in September: 15.4 days
The month with the highest number of rainy days is July (22.4 days).
The month with the least rainy days is November (10.3 days).
Average snowfall in September
Henagar, AL
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Henagar, AL
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (2.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Henagar, 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 2min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Henagar, AL
- Average sunshine days in September: 13.2 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is July (7 days).
Average UV index in September
Henagar, AL
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Henagar, AL
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 32).
Average visibility in September
Henagar, AL
- Average visibility in September: 5mi
The months with the highest visibility are April, June, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September and December (5mi).
Henagar, Alabama, USA
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