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 advent of September denotes an average high-temperature of a still hot 87.8°F (31°C), subtly different from August's 91.6°F (33.1°C). Throughout September, Barnes witnesses a consistent average low-temperature of 67.6°F (19.8°C).Heat index
The average heat index in September is calculated to be a sweltering 102.2°F (39°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.Understanding the heat index involves considering values for shaded locales with light wind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
In Barnes, the average relative humidity in September is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 12.4 days and accumulates 2.05" (52mm) of precipitation.Snowfall
April through October and December are months without snowfall in Barnes.Daylight
In September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 6:40 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:50 pm CDT.
Sunshine
In September, the average sunshine is 9.7h.UV index
In Barnes, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Barnes have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Barnes have in September?
What is the UV index reading in September in Barnes?
Average temperature in September
Barnes, LA
- Average high temperature in September: 87.8°F
The warmest months (with the highest average high temperature) are July and August (91.6°F).
The month with the lowest average high temperature is January (54.1°F).
- Average low temperature in September: 67.6°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).
Average pressure in September
Barnes, LA
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Barnes, LA
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Barnes, LA
- Average humidity in September: 73%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Barnes, LA
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is April (3.9").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in September
Barnes, LA
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is August (16.7 days).
The month with the least rainy days is October (8.8 days).
Average snowfall in September
Barnes, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Barnes, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.8 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
Barnes, 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 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Barnes, LA
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is August (12.5 days).
Average UV index in September
Barnes, 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
Barnes, LA
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are June and October (Cloud cover 27).
Average visibility in September
Barnes, LA
- 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).
Barnes, Louisiana, USA
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