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 marks a slight shift to an average high-temperature of a still tropical 87.8°F (31°C) from August's 92.5°F (33.6°C). During the month of September, Sterlington experiences a steady low-temperature average of 67.8°F (19.9°C).Heat index
The heat index in September is appraised at a very hot 100.4°F (38°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.Remember that heat index calculations are made for conditions in the shade 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', takes into account both air temperature and humidity to illustrate what people actually feel. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
In September, the average relative humidity is 71%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.6 days and typically collects 1.5" (38mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Sterlington, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:43 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:53 pm CDT.
Sunshine
The average sunshine in September in Sterlington is 9.6h.UV index
In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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?
What is the driest month?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Sterlington have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Sterlington have in September?
How high is the UV index in September?
Average temperature in September
Sterlington, LA
- Average high temperature in September: 87.8°F
The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (53.8°F).
- Average low temperature in September: 67.8°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (39.4°F).
Average pressure in September
Sterlington, LA
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Sterlington, LA
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are March and April (7.6mph).
The calmest months (with the lowest average wind speed) are July, August and September (5.3mph).
Average humidity in September
Sterlington, LA
- Average humidity in September: 71%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Sterlington, LA
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is April (4.17").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in September
Sterlington, LA
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is March (15.2 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Sterlington, LA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Sterlington, 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, October and November (0 days).
Average daylight in September /
Average sunshine in September
Sterlington, LA
- 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: 9h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Sterlington, LA
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is February (13.2 days).
Average UV index in September
Sterlington, 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
Sterlington, LA
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and October (Cloud cover 28).
Average visibility in September
Sterlington, 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).
Sterlington, Louisiana, USA
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