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 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 sees an average high-temperature of a still tropical 86.7°F (30.4°C), hardly diverging from August's 89.1°F (31.7°C). Norah's September nights cool down to an average low-temperature of 73.6°F (23.1°C).Heat index
Throughout September, the heat index is computed to be a sweltering 100.4°F (38°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.Always consider that heat index estimations are for light winds and places in the shade. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
The average relative humidity in September is 77%.Rainfall
In Norah, Louisiana, during September, the rain falls for 16 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Norah, Louisiana, during the entire year, the rain falls for 145.4 days and collects up to 19.13" (486mm) of precipitation.Snowfall
In Norah, snow does not fall in February through December.Daylight
In September, the average length of the day is 12h and 20min.On the first day of September, sunrise is at 6:39 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:48 pm CDT.
Sunshine
In Norah, the average sunshine in September is 10.1h.UV index
In Norah, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 6 during September translates into these guidelines:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
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 much does it rain in September?
When it does not snow?
How many hours of daylight does Norah have in September?
What time are sunrise and sunset in September in Norah?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Norah, LA
- Average high temperature in September: 86.7°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (61.3°F).
- Average low temperature in September: 73.6°F
The month with the highest average low temperature is August (77°F).
The coldest month (with the lowest average low temperature) is January (47.1°F).
Average pressure in September
Norah, 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, August and September (29.97"Hg).
Average wind speed in September
Norah, LA
- Average wind speed in September: 6mph
The windiest months (with the highest average wind speed) are February and April (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in September
Norah, LA
- Average humidity in September: 77%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Norah, LA
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is August (3.39").
The driest month (with the least rainfall) is March (0.75").
Average rainfall days in September
Norah, LA
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is November (6.4 days).
Average snowfall days in September
Norah, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Norah, LA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Norah, LA
- Average sunshine days in September: 10.8 days
The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is July (6.8 days).
Average UV index in September
Norah, LA
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Norah, LA
- Average cloud cover in September: 26
The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility in September
Norah, 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).
Norah, Louisiana, USA
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