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
Lettsworth, Louisiana, starts September with an average high-temperature of a still tropical 87.3°F (30.7°C), a minor shift from August's 90.9°F (32.7°C). September in Lettsworth, Louisiana, generally records an average low-temperature of 69.1°F (20.6°C).Heat index
During September, the heat index is computed to be a scorching 104°F (40°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
In September, the average relative humidity in Lettsworth is 79%.Rainfall
In September, the rain falls for 17.3 days. Throughout September, 2.91" (74mm) of precipitation is accumulated. Throughout the year, in Lettsworth, there are 182 rainfall days, and 39.09" (993mm) of precipitation is accumulated.Snowfall
In Lettsworth, snow does not fall in February through November.Daylight
The average length of the day in September in Lettsworth is 12h and 20min.On the first day of September in Lettsworth, sunrise is at 6:43 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:52 pm CDT.
Sunshine
In Lettsworth, the average sunshine in September is 9.5h.UV index
In September, the average daily maximum UV index in Lettsworth, Louisiana, is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.Note: In September, a regular UV index of 6 translates into these guidelines:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Frequently asked questions
How hot is September in Lettsworth?
What is the average humidity in September in Lettsworth?
How much does it rain in Lettsworth in September?
When it does not snow in Lettsworth?
What is the average length of the day in September in Lettsworth?
What time are sunrise and sunset in September in Lettsworth?
How many hours of sunshine does Lettsworth have in September?
What is the UV index reading in September in Lettsworth?
Average temperature in September
Lettsworth, LA
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (57.2°F).
- Average low temperature in September: 69.1°F
The month with the highest average low temperature is August (73.4°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).
Average pressure in September
Lettsworth, 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
Lettsworth, LA
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).
Average humidity in September
Lettsworth, LA
- Average humidity in September: 79%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Lettsworth, LA
- Average rainfall in September: 2.91"
The wettest month (with the highest rainfall) is August (4.61").
The driest month (with the least rainfall) is November (2.2").
Average rainfall days in September
Lettsworth, LA
- Average rainfall days in September: 17.3 days
The month with the highest number of rainy days is August (22.5 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in September
Lettsworth, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.24").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Lettsworth, 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
Lettsworth, 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 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Lettsworth, LA
- Average sunshine days in September: 10.9 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is August (6.5 days).
Average UV index in September
Lettsworth, 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
Lettsworth, LA
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in September
Lettsworth, LA
- Average visibility in September: 5mi
The months with the highest visibility are January, October, November and December (6mi).
The months with the lowest visibility are February, March, April, May, June, July, August and September (5mi).
Lettsworth, Louisiana, USA
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