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
On the advent of September, Erath's average high-temperature exhibits a minor adjustment to a still hot 86°F (30°C) from August's 89.8°F (32.1°C). The nights of September anticipate an average low-temperature of 71.8°F (22.1°C).Heat index
The average heat index in September is appraised at a fiery hot 98.6°F (37°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.It is emphasized that the heat index's values are meant for shaded zones with mild winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
In September, the average relative humidity is 79%.Rainfall
In September, the rain falls for 15.5 days. Throughout September, 1.61" (41mm) of precipitation is accumulated. In Erath, during the entire year, the rain falls for 148.8 days and collects up to 22.24" (565mm) of precipitation.Snowfall
February through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 20min.On the first day of September, sunrise is at 6:45 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:54 pm CDT.
Sunshine
The average sunshine in September is 10h.UV index
In Erath, Louisiana, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 6 in September translates into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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 many days 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 many hours of sunshine does Erath have in September?
What is the UV index intensity in September?
Average temperature in September
Erath, LA
- Average high temperature in September: 86°F
The warmest months (with the highest average high temperature) are July and August (89.8°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in September: 71.8°F
The month with the highest average low temperature is August (76.1°F).
The coldest month (with the lowest average low temperature) is January (45.3°F).
Average pressure in September
Erath, LA
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.95"Hg).
Average wind speed in September
Erath, LA
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in September
Erath, LA
- Average humidity in September: 79%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Erath, LA
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is March (1.18").
Average rainfall days in September
Erath, LA
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is August (19.1 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in September
Erath, LA
- Average snowfall in September: 0"
The months with the highest snowfall are January and December (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Erath, 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 and November (0 days).
Average daylight in September /
Average sunshine in September
Erath, 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 0min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Erath, LA
- Average sunshine days in September: 12 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is August (9.3 days).
Average UV index in September
Erath, 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
Erath, LA
- Average cloud cover in September: 27
The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility in September
Erath, 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).
Erath, Louisiana, USA
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