August weather forecastJustin, TX
August
Weather in August
August, the last month of the summer in Justin, is a fiery hot month, with an average temperature varying between 75.6°F (24.2°C) and 95.5°F (35.3°C).Temperature
The warmest period tends to be August, when average temperatures fluctuate between a high of 95.5°F (35.3°C) and a low of 75.6°F (24.2°C).Heat index
For most parts of August, the heat index is evaluated at a scorching 111.2°F (44°C). Be alert: Heat exhaustion along with heat cramps are probable. Heatstroke is a threat with sustained physical activity.Heat index data is primarily for areas with shade and subjected to light winds. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.
Humidity
With an average relative humidity of 55%, August is the least humid month.Rainfall
In August, the rain falls for 11.6 days. Throughout August, 2.13" (54mm) of precipitation is accumulated. Throughout the year, there are 135.5 rainfall days, and 29.45" (748mm) of precipitation is accumulated.Snowfall
In Justin, snow does not fall in April through October.Daylight
In Justin, the average length of the day in August is 13h and 20min.On the first day of August, sunrise is at 6:43 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 7:55 pm CDT.
Sunshine
The average sunshine in August in Justin is 10.9h.UV index
June through August, with an average maximum UV index of 7, are months with the highest UV index in Justin. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 7 in August interprets into the following advice:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Justin, TX
- Average high temperature in August: 95.5°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (54.3°F).
- Average low temperature in August: 75.6°F
The month with the highest average low temperature is August (75.6°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).
Average pressure in August
Justin, TX
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Justin, TX
- Average wind speed in August: 7mph
The windiest months (with the highest average wind speed) are March and April (10.4mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).
Average humidity in August
Justin, TX
- Average humidity in August: 55%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (55%).
Average rainfall in August
Justin, TX
- Average rainfall in August: 2.13"
The wettest months (with the highest rainfall) are May and October (3.9").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in August
Justin, TX
- Average rainfall days in August: 11.6 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in August
Justin, TX
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Justin, TX
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Justin, TX
- Average daylight in August: 13h and 18min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 10h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in August
Justin, TX
- Average sunshine days in August: 16.8 days
The month with the most sunshine days is January (23.5 days).
The months with the least sunshine days are May and September (14.5 days).
Average UV index in August
Justin, TX
- Average UV index in August: 7
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in August
Justin, TX
- Average cloud cover in August: 19
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in August
Justin, TX
- Average visibility in August: 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).





