September weather forecastLa Grulla, TX
September
Weather in September
The first month of the autumn, September, is still a tropical month in La Grulla, Texas, with an average temperature fluctuating between 92.8°F (33.8°C) and 77.2°F (25.1°C).Temperature
In La Grulla, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's sweltering 99.9°F (37.7°C) to a tropical 92.8°F (33.8°C). La Grulla records an average low-temperature of 77.2°F (25.1°C) throughout the month of September.Heat index
For most parts of September, the heat index is appraised at a blisteringly hot 109.4°F (43°C). Forewarned: Heat cramps and heat exhaustion are anticipated. Ongoing physical activity increases the likelihood of heatstroke.Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
In September, the average relative humidity is 63%.Rainfall
The month with the most rainfall in La Grulla is September, when the rain falls for 15.3 days and typically aggregates up to 2.2" (56mm) of precipitation.Snowfall
In La Grulla, snow does not fall in February through December.Daylight
In La Grulla, the average length of the day in September is 12h and 18min.On the first day of September, sunrise is at 7:14 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:21 pm CDT.
Sunshine
In September, the average sunshine in La Grulla is 8.6h.UV index
In September, the average daily maximum UV index in La Grulla is 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 7 in September translates into these instructions:
Shun overexposure. Protection from sun ravages is indispensable. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
La Grulla, TX
- Average high temperature in September: 92.8°F
The warmest month (with the highest average high temperature) is August (99.9°F).
The month with the lowest average high temperature is January (69.8°F).
- Average low temperature in September: 77.2°F
The month with the highest average low temperature is August (80.1°F).
The coldest month (with the lowest average low temperature) is January (53.2°F).
Average pressure in September
La Grulla, TX
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are May and June (29.87"Hg).
Average wind speed in September
La Grulla, TX
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is July (13.7mph).
The calmest months (with the lowest average wind speed) are January and December (9.4mph).
Average humidity in September
La Grulla, TX
- Average humidity in September: 63%
The month with the highest relative humidity is December (66%).
The month with the lowest relative humidity is August (55%).
Average rainfall in September
La Grulla, TX
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is September (2.2").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in September
La Grulla, TX
- Average rainfall days in September: 15.3 days
The month with the highest number of rainy days is September (15.3 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in September
La Grulla, TX
- 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
La Grulla, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
La Grulla, 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 July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in September
La Grulla, TX
- Average sunshine days in September: 12.9 days
The month with the most sunshine days is August (23.3 days).
The month with the least sunshine days is September (12.9 days).
Average UV index in September
La Grulla, TX
- Average UV index in September: 7
The months with the highest UV index are July and August (UV index 8).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in September
La Grulla, TX
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
La Grulla, 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).
