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
The average high-temperature is a moderately hot 85.1°F (29.5°C) in September, hardly different from the 90.1°F (32.3°C) recorded in August. Throughout September, the average low-temperature records at an enjoyable 65.8°F (18.8°C).Heat index
In September, the heat index is evaluated at a hot 93.2°F (34°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Humidity
The months with the lowest humidity are September and October, with an average relative humidity of 71%.Rainfall
In Forestdale, in September, during 14.5 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. In Forestdale, during the entire year, the rain falls for 173.7 days and collects up to 40" (1016mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:22 am and sunset at 7:12 pm. On the last day of September, sunrise is at 6:41 am and sunset at 6:32 pm CDT.
Sunshine
In Forestdale, Alabama, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index in Forestdale is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In September, the UV index of 6 transforms into the following advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. 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. 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 does it get in Forestdale in September?
What are the least humid months?
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 Forestdale have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Forestdale have in September?
What is the UV index intensity in September?
Average temperature in September
Forestdale, AL
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (50.9°F).
- Average low temperature in September: 65.8°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in September
Forestdale, AL
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in September
Forestdale, AL
- Average wind speed in September: 4.9mph
The windiest months (with the highest average wind speed) are February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in September
Forestdale, AL
- Average humidity in September: 71%
The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are September and October (71%).
Average rainfall in September
Forestdale, AL
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is December (4.17").
The driest month (with the least rainfall) is October (2.24").
Average rainfall days in September
Forestdale, AL
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is November (9.6 days).
Average snowfall in September
Forestdale, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Forestdale, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.4 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
Forestdale, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- 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 February (Average sunshine: 4h and 42min).
Average sunshine days in September
Forestdale, AL
- Average sunshine days in September: 13 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is July (7.5 days).
Average UV index in September
Forestdale, AL
- Average UV index in September: 6
The month with the highest UV index is August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Forestdale, AL
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and September (Cloud cover 30).
Average visibility in September
Forestdale, AL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Forestdale, Alabama, USA
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