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
With the onset of September, the average high-temperature registers at a still tropical 88°F (31.1°C), subtly different from August's 91.4°F (33°C). An average nighttime temperature of 70.7°F (21.5°C) is recorded during September.Heat index
The heat index value during September is evaluated at a scorching 104°F (40°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.Factoring in the heat index, values are geared towards shaded areas with light breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.
Humidity
In September, the average relative humidity is 77%.Rainfall
In Ponchatoula, in September, during 16.7 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. In Ponchatoula, during the entire year, the rain falls for 163.3 days and collects up to 27.64" (702mm) of precipitation.Snowfall
In Ponchatoula, snow does not fall in February through November.Daylight
In Ponchatoula, the average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 6:38 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:47 pm CDT.
Sunshine
In Ponchatoula, the average sunshine in September is 9.6h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 6 in September translates into this advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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?
How many hours of daylight does Ponchatoula have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Ponchatoula have in September?
What is the UV index reading in September?
Average temperature in September
Ponchatoula, LA
- Average high temperature in September: 88°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (58.6°F).
- Average low temperature in September: 70.7°F
The month with the highest average low temperature is August (74.5°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).
Average pressure in September
Ponchatoula, LA
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in September
Ponchatoula, 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 (4.6mph).
Average humidity in September
Ponchatoula, LA
- Average humidity in September: 77%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Ponchatoula, LA
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is July (3.9").
The driest month (with the least rainfall) is November (1.14").
Average rainfall days in September
Ponchatoula, LA
- Average rainfall days in September: 16.7 days
The month with the highest number of rainy days is August (20.7 days).
The month with the least rainy days is November (7.6 days).
Average snowfall in September
Ponchatoula, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.2").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Ponchatoula, LA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and December (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Ponchatoula, 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 4min
The months with the most sunshine are June and August (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in September
Ponchatoula, LA
- Average sunshine days in September: 11.6 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (7.9 days).
Average UV index in September
Ponchatoula, 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
Ponchatoula, LA
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in September
Ponchatoula, LA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, April, June, August, October, November and December (6mi).
The months with the lowest visibility are March, May, July and September (5mi).
Ponchatoula, Louisiana, USA
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