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 shift into September records an average high-temperature of a still tropical 88°F (31.1°C), subtly varied from August's 91.9°F (33.3°C). During September nights, Pleasant Hills records an average temperature of 70°F (21.1°C).Heat index
In September, the average heat index is estimated at an extremely hot 105.8°F (41°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
In September, the average relative humidity is 78%.Rainfall
In Pleasant Hills, in September, during 17.6 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. Throughout the year, there are 177.1 rainfall days, and 36.1" (917mm) of precipitation is accumulated.Snowfall
February through November are months without snowfall.Daylight
In Pleasant Hills, the average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 6:41 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:50 pm CDT.
Sunshine
The average sunshine in September is 9.5h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 6 in September transforms into this advice:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is 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 Pleasant Hills have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Pleasant Hills have in September?
How high is the UV index in September?
Average temperature in September
Pleasant Hills, LA
- Average high temperature in September: 88°F
The warmest months (with the highest average high temperature) are July and August (91.9°F).
The month with the lowest average high temperature is January (58.6°F).
- Average low temperature in September: 70°F
The month with the highest average low temperature is August (73.9°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).
Average pressure in September
Pleasant Hills, LA
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).
Average wind speed in September
Pleasant Hills, LA
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.4mph).
Average humidity in September
Pleasant Hills, LA
- Average humidity in September: 78%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Pleasant Hills, LA
- Average rainfall in September: 2.95"
The wettest month (with the highest rainfall) is July (4.72").
The driest month (with the least rainfall) is November (1.77").
Average rainfall days in September
Pleasant Hills, LA
- Average rainfall days in September: 17.6 days
The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in September
Pleasant Hills, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.28").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Pleasant Hills, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Pleasant Hills, 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 3min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Pleasant Hills, LA
- Average sunshine days in September: 10.4 days
The month with the most sunshine days is November (19.6 days).
The months with the least sunshine days are July and August (7.3 days).
Average UV index in September
Pleasant Hills, 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
Pleasant Hills, LA
- Average cloud cover in September: 34
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in September
Pleasant Hills, LA
- Average visibility in September: 5mi
The months with the highest visibility are October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and December (5mi).
Pleasant Hills, Louisiana, USA
Weather forecast for your location
2. Allow the app to use your location