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
DeRidder's progression into September involves a gentle drop in the average high-temperature, from 93.6°F (34.2°C) in August to a still hot 88.2°F (31.2°C). In DeRidder, the September nights cool down to an average low of 69.1°F (20.6°C).Heat index
The average heat index in September is evaluated at a blistering 104°F (40°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.Always consider that heat index estimations are for light winds and places in the shade. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
In DeRidder, the average relative humidity in September is 76%.Rainfall
In DeRidder, in September, it is raining for 16.9 days, with typically 2.09" (53mm) of accumulated precipitation. In DeRidder, during the entire year, the rain falls for 163.2 days and collects up to 25.08" (637mm) 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 6:49 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:59 pm CDT.
Sunshine
The average sunshine in September in DeRidder is 9.3h.UV index
In DeRidder, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 6 in September translates into this advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
How hot does it get in DeRidder in September?
What is the average humidity in September in DeRidder?
How much does it rain in DeRidder in September?
When it does not snow in DeRidder?
What is the average length of the day in September in DeRidder?
When are sunrise and sunset in September in DeRidder?
How many hours of sunshine does DeRidder have in September?
How high is the UV index in September in DeRidder?
Average temperature in September
DeRidder, LA
- Average high temperature in September: 88.2°F
The warmest months (with the highest average high temperature) are July and August (93.6°F).
The month with the lowest average high temperature is January (57.7°F).
- Average low temperature in September: 69.1°F
The months with the highest average low temperature are July and August (73.8°F).
The coldest month (with the lowest average low temperature) is January (41.4°F).
Average pressure in September
DeRidder, 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
DeRidder, LA
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in September
DeRidder, 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
DeRidder, LA
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is November (1.3").
Average rainfall days in September
DeRidder, LA
- Average rainfall days in September: 16.9 days
The month with the highest number of rainy days is August (20.5 days).
The month with the least rainy days is November (7.7 days).
Average snowfall in September
DeRidder, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.51").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
DeRidder, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.4 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
DeRidder, 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 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
DeRidder, LA
- Average sunshine days in September: 11.4 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is August (7.9 days).
Average UV index in September
DeRidder, 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
DeRidder, LA
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
DeRidder, LA
- Average visibility in September: 5mi
The months with the highest visibility are January, October and November (6mi).
The months with the lowest visibility are February, March, April, May, June, July, August, September and December (5mi).
DeRidder, Louisiana, USA
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