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
As August transitions into September, the average high-temperature rests at a still tropical 88°F (31.1°C), maintaining a close resemblance to the previous month. An average low-temperature of 68°F (20°C) is expected during September.Heat index
The average heat index in September is computed to be a blisteringly hot 104°F (40°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In Alfalfa, the average relative humidity in September is 76%.Rainfall
In Alfalfa, in September, during 14.8 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. In Alfalfa, during the entire year, the rain falls for 164.9 days and collects up to 35.43" (900mm) of precipitation.Snowfall
In Alfalfa, snow does not fall in March through November.Daylight
In September, the average length of the day is 12h and 21min.On the first day of September in Alfalfa, Louisiana, sunrise is at 6:46 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:56 pm CDT.
Sunshine
In Alfalfa, the average sunshine in September is 9.4h.UV index
The average daily maximum UV index in September in Alfalfa, Louisiana, is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Experience reduced UV exposure by about half when donning a wide-brim hat. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
How hot does it get in Alfalfa in September?
What is the average humidity in September in Alfalfa?
How much does it rain in Alfalfa in September?
When it does not snow in Alfalfa?
What is the average length of the day in September in Alfalfa?
When are sunrise and sunset in September in Alfalfa?
How long on average sun shines in September in Alfalfa?
What is the UV index reading in September in Alfalfa?
Average temperature in September
Alfalfa, LA
- Average high temperature in September: 88°F
The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (56.1°F).
- Average low temperature in September: 68°F
The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (40.6°F).
Average pressure in September
Alfalfa, LA
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Alfalfa, LA
- Average wind speed in September: 5mph
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 (5mph).
Average humidity in September
Alfalfa, LA
- Average humidity in September: 76%
The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Alfalfa, LA
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is November (2.17").
Average rainfall days in September
Alfalfa, LA
- Average rainfall days in September: 14.8 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is October (9.9 days).
Average snowfall in September
Alfalfa, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.55").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Alfalfa, LA
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are March, April, May, June, July, August, October and November (0 days).
Average daylight in September /
Average sunshine in September
Alfalfa, LA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Alfalfa, LA
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Alfalfa, 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
Alfalfa, LA
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in September
Alfalfa, LA
- Average visibility in September: 5mi
The months with the highest visibility are January, June, October, November and December (6mi).
The months with the lowest visibility are February, March, April, May, July, August and September (5mi).
Alfalfa, Louisiana, USA
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