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
Welsh ushers in September with an average high-temperature of a still hot 86.9°F (30.5°C), showing a close resemblance to the previous month. During the nights in September, Welsh experiences a consistent average temperature of 70.9°F (21.6°C).Heat index
September's mean heat index is evaluated at a very hot 102.2°F (39°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.Note that heat index values are valued for light wind and location in the shade. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
In Welsh, the average relative humidity in September is 78%.Rainfall
In Welsh, in September, it is raining for 13.5 days, with typically 1.14" (29mm) of accumulated precipitation. In Welsh, during the entire year, the rain falls for 143.2 days and collects up to 16.42" (417mm) of precipitation.Snowfall
February through December are months without snowfall.Daylight
The average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:33 pm. On the last day of September, sunrise is at 7:04 am and sunset at 6:57 pm CDT.
Sunshine
In September, the average sunshine is 9.9h.UV index
In Welsh, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 6 in September transforms into this advice:
Guard oneself from overexposure. Defence against sun injury is vital. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Foresee this! The reflection from snow can nearly double the intensity of UV radiation 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 average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September in Welsh?
How high is the UV index in September?
Average temperature in September
Welsh, LA
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is August (90.5°F).
The month with the lowest average high temperature is January (59°F).
- Average low temperature in September: 70.9°F
The month with the highest average low temperature is July (75.4°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).
Average pressure in September
Welsh, LA
- Average pressure in September: 29.96"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
Welsh, LA
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is February (9.2mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in September
Welsh, LA
- Average humidity in September: 78%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Welsh, LA
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is August (2.44").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in September
Welsh, LA
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is August (18.3 days).
The month with the least rainy days is November (7.7 days).
Average snowfall in September
Welsh, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Welsh, LA
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (0.3 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
Welsh, 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 5min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Welsh, LA
- Average sunshine days in September: 13 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is August (9.7 days).
Average UV index in September
Welsh, 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
Welsh, LA
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility in September
Welsh, 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).
Welsh, Louisiana, USA
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