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
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a hot 93.7°F (34.3°C) to a still tropical 88°F (31.1°C). Spearsville's nights in September cool down to an average low-temperature of 66.7°F (19.3°C).Heat index
The heat index value during September is appraised at a sweltering 100.4°F (38°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.When assessing, remember that heat index measurements are for light winds and shaded spots. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
July through October, with an average relative humidity of 71%, are the least humid months.Rainfall
The month with the least rainfall is September, when the rain falls for 13.5 days and typically collects 1.93" (49mm) of precipitation.Snowfall
March through October are months without snowfall.Daylight
In Spearsville, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:34 pm. On the last day of September, sunrise is at 7:04 am and sunset at 6:55 pm CDT.
Sunshine
In Spearsville, the average sunshine in September is 9.6h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the least humid month?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Spearsville have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Spearsville, LA
- Average high temperature in September: 88°F
The warmest months (with the highest average high temperature) are July and August (93.7°F).
The month with the lowest average high temperature is January (53.2°F).
- Average low temperature in September: 66.7°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (37.8°F).
Average pressure in September
Spearsville, LA
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Spearsville, LA
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Spearsville, LA
- Average humidity in September: 71%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are July, August, September and October (71%).
Average rainfall in September
Spearsville, LA
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is April (4.29").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Spearsville, LA
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is March (15.4 days).
The month with the least rainy days is November (9.6 days).
Average snowfall in September
Spearsville, LA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.55").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in September
Spearsville, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Spearsville, LA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in September
Spearsville, LA
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is February (12.9 days).
Average UV index in September
Spearsville, 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
Spearsville, LA
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Spearsville, LA
- Average visibility in September: 6mi
The months with the highest visibility are June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May and December (5mi).
Spearsville, Louisiana, USA
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