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
During September, the average high-temperature is a still hot 88.3°F (31.3°C), maintaining a close resemblance to that of the preceding month. In Flatwoods, the average temperature during the nights of September drops to an agreeable 68°F (20°C).Heat index
September's mean heat index is evaluated at a blisteringly hot 104°F (40°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.Realize that the values for the heat index are set for shaded places and light winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In Flatwoods, the average relative humidity in September is 75%.Rainfall
In September, the rain falls for 12.4 days. Throughout September, 2.24" (57mm) of precipitation is accumulated. Throughout the year, there are 153.5 rainfall days, and 34.8" (884mm) of precipitation is accumulated.Snowfall
In Flatwoods, snow does not fall in April through November.Daylight
In September, the average length of the day is 12h and 21min.On the first day of September, sunrise is at 6:47 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:57 pm CDT.
Sunshine
In Flatwoods, the average sunshine in September is 9.2h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 6 suggests this advice:
Guard oneself from overexposure. Defence against sun injury is vital. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Flatwoods, LA
- Average high temperature in September: 88.3°F
The warmest month (with the highest average high temperature) is July (94.3°F).
The month with the lowest average high temperature is January (55.9°F).
- Average low temperature in September: 68°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).
Average pressure in September
Flatwoods, LA
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Flatwoods, LA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.9mph).
Average humidity in September
Flatwoods, LA
- Average humidity in September: 75%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Flatwoods, LA
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is April (3.66").
The driest month (with the least rainfall) is June (1.93").
Average rainfall days in September
Flatwoods, LA
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is March (14.9 days).
The month with the least rainy days is October (9.4 days).
Average snowfall in September
Flatwoods, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.51").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Flatwoods, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.6 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
Flatwoods, LA
- 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: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in September
Flatwoods, LA
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is February (12.2 days).
Average UV index in September
Flatwoods, LA
- 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
Flatwoods, LA
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Flatwoods, LA
- Average visibility in September: 5mi
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).
Flatwoods, Louisiana, USA
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