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 arrival of September suggests a slight decrease in the average high-temperature, moving from 94.5°F (34.7°C) in August to a still tropical 88.9°F (31.6°C). In Merryville, the expected average low-temperature for September is an agreeable 69.1°F (20.6°C).Heat index
For most parts of September, the heat index is estimated at a scorching 105.8°F (41°C). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
In September, the average relative humidity is 76%.Rainfall
In Merryville, during September, the rain falls for 14.1 days and regularly aggregates up to 1.61" (41mm) of precipitation. In Merryville, during the entire year, the rain falls for 150.4 days and collects up to 22.8" (579mm) of precipitation.Snowfall
March through November are months without snowfall.Daylight
The average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 6:50 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 7:00 pm CDT.
Sunshine
In September, the average sunshine is 9h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily UV index of 6 turns into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Merryville during September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Merryville have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Merryville have in September?
What is the UV index intensity in September?
Average temperature in September
Merryville, LA
- Average high temperature in September: 88.9°F
The warmest months (with the highest average high temperature) are July and August (94.5°F).
The month with the lowest average high temperature is January (57.7°F).
- Average low temperature in September: 69.1°F
The month with the highest average low temperature is July (73.8°F).
The coldest month (with the lowest average low temperature) is January (40.8°F).
Average pressure in September
Merryville, LA
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Merryville, LA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in September
Merryville, LA
- Average humidity in September: 76%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Merryville, LA
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is November (1.3").
Average rainfall days in September
Merryville, LA
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Merryville, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.39").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Merryville, LA
- Average snowfall days in September: 0.1 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, October and November (0 days).
Average daylight in September /
Average sunshine in September
Merryville, LA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Merryville, LA
- Average sunshine days in September: 13 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is August (10.1 days).
Average UV index in September
Merryville, LA
- Average UV index in September: 6
The months with the highest UV index are May, 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
Merryville, LA
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is October (Cloud cover 32).
Average visibility in September
Merryville, LA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Merryville, Louisiana, USA
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