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
With the onset of September, Kopperl's climate undergoes a slight change as the average high-temperature moves from a torrid 96.1°F (35.6°C) in August to a tropical 88.2°F (31.2°C). In Kopperl, September nights cool down to an average of 70.3°F (21.3°C).Heat index
Throughout September, the heat index is appraised at a fiery hot 96.8°F (36°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.Heat index data is primarily for areas with shade and subjected to light winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular significance for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
In Kopperl, the average relative humidity in September is 64%.Rainfall
In Kopperl, in September, it is raining for 12.7 days, with typically 1.54" (39mm) of accumulated precipitation. Throughout the year, there are 116.7 rainfall days, and 19.06" (484mm) of precipitation is accumulated.Snowfall
January, April through December are months without snowfall.Daylight
The average length of the day in September is 12h and 21min.On the first day of the month, sunrise is at 7:05 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:15 pm CDT.
Sunshine
In Kopperl, the average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 6 in September transforms into the following instructions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September in Kopperl?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Kopperl have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Kopperl have in September?
What is the UV index intensity in September?
Average temperature in September
Kopperl, TX
- Average high temperature in September: 88.2°F
The warmest month (with the highest average high temperature) is August (96.1°F).
The month with the lowest average high temperature is January (56.8°F).
- Average low temperature in September: 70.3°F
The month with the highest average low temperature is August (75.9°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).
Average pressure in September
Kopperl, TX
- 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 (29.91"Hg).
Average wind speed in September
Kopperl, TX
- Average wind speed in September: 7mph
The windiest months (with the highest average wind speed) are March and April (10.6mph).
The calmest month (with the lowest average wind speed) is September (7mph).
Average humidity in September
Kopperl, TX
- Average humidity in September: 64%
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (55%).
Average rainfall in September
Kopperl, TX
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is October (2.6").
The driest month (with the least rainfall) is November (0.83").
Average rainfall days in September
Kopperl, TX
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (13 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in September
Kopperl, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.35").
The months with the least snowfall are January, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Kopperl, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.9 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
Kopperl, TX
- 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: 8h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Kopperl, TX
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is January (24.1 days).
The month with the least sunshine days is May (14.9 days).
Average UV index in September
Kopperl, TX
- Average UV index in September: 6
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Kopperl, TX
- Average cloud cover in September: 30
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Kopperl, TX
- 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).
Kopperl, Texas, USA
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