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
September ushers in a minor alteration in DeRidder's climate, with the average high-temperature moving from August's 93.6°F (34.2°C) to a still tropical 88.2°F (31.2°C). September generally records an average low-temperature of 69.1°F (20.6°C).Heat index
The average heat index in September is computed to be a blistering 104°F (40°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In September, the average relative humidity 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
In DeRidder, snow does not fall in March through November.Daylight
In September, the average length of the day is 12h and 20min.On the first day of the month, sunrise is at 6:49 am and sunset at 7:35 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:59 pm CDT.
Sunshine
In September, the average sunshine in DeRidder is 9.3h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.Note: A typical high UV index of 6 in September suggests the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September in DeRidder?
When are sunrise and sunset in September?
How many hours of sunshine does DeRidder have in September?
How high is the UV index in September?
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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