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
The transition from August to September sees an average high-temperature of a still tropical 87.4°F (30.8°C), indicating a minor variance from the prior month. An average nighttime temperature of 68.2°F (20.1°C) is noted in Harrisonburg during the month of September.Heat index
September's average heat index is evaluated at a torrid 102.2°F (39°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for 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.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
In September, the average relative humidity in Harrisonburg, Louisiana, is 75%.Rainfall
In Harrisonburg, in September, it is raining for 15.2 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, there are 166.6 rainfall days, and 35.79" (909mm) of precipitation is accumulated.Snowfall
March through November are months without snowfall in Harrisonburg.Daylight
The average length of the day in September in Harrisonburg is 12h and 21min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:30 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:53 pm CDT.
Sunshine
The average sunshine in September is 9.6h.UV index
In September, the average daily maximum UV index in Harrisonburg is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
Is it hot in Harrisonburg during September?
What is the average humidity in September in Harrisonburg?
How many days does it rain in September in Harrisonburg?
When it does not snow in Harrisonburg?
What is the average length of the day in September in Harrisonburg?
When is the sunrise / sunset in September in Harrisonburg?
How long on average sun shines in September in Harrisonburg?
What is the UV index intensity in September in Harrisonburg?
Average temperature in September
Harrisonburg, LA
- Average high temperature in September: 87.4°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (55.6°F).
- Average low temperature in September: 68.2°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 (40.5°F).
Average pressure in September
Harrisonburg, 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 (29.95"Hg).
Average wind speed in September
Harrisonburg, LA
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is February (7.7mph).
The calmest month (with the lowest average wind speed) is July (5mph).
Average humidity in September
Harrisonburg, LA
- Average humidity in September: 75%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Harrisonburg, LA
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is November (2.13").
Average rainfall days in September
Harrisonburg, LA
- Average rainfall days in September: 15.2 days
The month with the highest number of rainy days is August (18.2 days).
The month with the least rainy days is October (9.5 days).
Average snowfall in September
Harrisonburg, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.43").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Harrisonburg, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.6 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
Harrisonburg, 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 4min
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
Harrisonburg, LA
- Average sunshine days in September: 13.1 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is August (10.6 days).
Average UV index in September
Harrisonburg, 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
Harrisonburg, LA
- Average cloud cover in September: 30
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
Harrisonburg, LA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are July, August and September (5mi).
Harrisonburg, Louisiana, USA
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