September weather forecastLopeno, TX
September
Weather in September
The first month of the autumn, September, is still a tropical month in Lopeno, Texas, with an average temperature fluctuating between 92.8°F (33.8°C) and 76.8°F (24.9°C).Temperature
Lopeno's progression into September involves a gentle drop in the average high-temperature, from a torrid 100.4°F (38°C) in August to a hot 92.8°F (33.8°C). During the month of September, the temperature generally drops to a low average of 76.8°F (24.9°C).Heat index
The average heat index in September is computed to be a blisteringly hot 107.6°F (42°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.For clarity, heat index numbers account for light winds and areas under shade. 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 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In September, the average relative humidity is 61%.Rainfall
The month with the most rainfall in Lopeno is September, when the rain falls for 15.6 days and typically aggregates up to 2.48" (63mm) of precipitation.Snowfall
January through November are months without snowfall.Daylight
In Lopeno, the average length of the day in September is 12h and 18min.On the first day of the month, sunrise is at 7:16 am and sunset at 7:56 pm. On the last day of September, in Lopeno, sunrise is at 7:28 am and sunset at 7:23 pm CDT.
Sunshine
In Lopeno, the average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September in Lopeno is 7. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Resist extreme sun exposure. Guarding against solar damage is essential. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lopeno, TX
- Average high temperature in September: 92.8°F
The warmest month (with the highest average high temperature) is August (100.4°F).
The month with the lowest average high temperature is January (68.7°F).
- Average low temperature in September: 76.8°F
The month with the highest average low temperature is August (80.2°F).
The coldest month (with the lowest average low temperature) is January (52°F).
Average pressure in September
Lopeno, TX
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are May and June (29.86"Hg).
Average wind speed in September
Lopeno, TX
- Average wind speed in September: 10.1mph
The windiest month (with the highest average wind speed) is July (14.4mph).
The calmest month (with the lowest average wind speed) is December (8.9mph).
Average humidity in September
Lopeno, TX
- Average humidity in September: 61%
The month with the highest relative humidity is December (63%).
The month with the lowest relative humidity is August (51%).
Average rainfall in September
Lopeno, TX
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is September (2.48").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in September
Lopeno, TX
- Average rainfall days in September: 15.6 days
The month with the highest number of rainy days is September (15.6 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in September
Lopeno, TX
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.08").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Lopeno, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Lopeno, TX
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in September
Lopeno, TX
- Average sunshine days in September: 13 days
The month with the most sunshine days is August (22.2 days).
The month with the least sunshine days is September (13 days).
Average UV index in September
Lopeno, TX
- Average UV index in September: 7
The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in September
Lopeno, TX
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 34).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Lopeno, 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).





