September weather forecastLa Vernia, TX
September
Weather in September
The first month of the autumn, September, is still a hot month in La Vernia, Texas, with temperature in the range of an average high of 89.1°F (31.7°C) and an average low of 71.6°F (22°C).Temperature
In September, the average high-temperature marginally decreases from a very hot 96.6°F (35.9°C) in August to a hot 89.1°F (31.7°C). La Vernia records an average nighttime low of 71.6°F (22°C) in September.Heat index
For most parts of September, the heat index is calculated to be a torrid 102.2°F (39°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.Always consider that heat index estimations are for light winds and places in the shade. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
In September, the average relative humidity is 68%.Rainfall
In La Vernia, during September, the rain falls for 15.7 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, there are 138.4 rainfall days, and 19.57" (497mm) of precipitation is accumulated.Snowfall
In La Vernia, Texas, snow does not fall in March through November.Daylight
The average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 7:10 am and sunset at 7:54 pm. On the last day of September, in La Vernia, sunrise is at 7:25 am and sunset at 7:18 pm CDT.
Sunshine
The average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index in La Vernia is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 6 in September interprets into the following advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
La Vernia, TX
- Average high temperature in September: 89.1°F
The warmest month (with the highest average high temperature) is August (96.6°F).
The month with the lowest average high temperature is January (61.3°F).
- Average low temperature in September: 71.6°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 (44.2°F).
Average pressure in September
La Vernia, TX
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
La Vernia, TX
- Average wind speed in September: 6.3mph
The windiest months (with the highest average wind speed) are March and May (8.7mph).
The calmest month (with the lowest average wind speed) is September (6.3mph).
Average humidity in September
La Vernia, TX
- Average humidity in September: 68%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (61%).
Average rainfall in September
La Vernia, TX
- Average rainfall in September: 2.83"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is February (0.63").
Average rainfall days in September
La Vernia, TX
- Average rainfall days in September: 15.7 days
The month with the highest number of rainy days is May (15.9 days).
The months with the least rainy days are January and November (8.8 days).
Average snowfall in September
La Vernia, TX
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
La Vernia, TX
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January, February and December (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
La Vernia, TX
- Average daylight in September: 12h and 18min
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: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
La Vernia, TX
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is January (20.4 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in September
La Vernia, TX
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
La Vernia, TX
- Average cloud cover in September: 33
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
La Vernia, 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).





