August weather forecastJoshua, TX
August
Weather in August
The last month of the summer, August, is a sweltering month in Joshua, Texas, with temperature in the range of an average high of 95.5°F (35.3°C) and an average low of 75.6°F (24.2°C).Temperature
August is the warmest month of the year, registering average temperatures as high as 95.5°F (35.3°C) and as low as 75.6°F (24.2°C).Heat index
In August, the average heat index is appraised at an extremely hot 111.2°F (44°C). Be careful: Heat exhaustion and heat cramps are probable. Heatstroke may result from extended activity.Records show heat index calculations are tailored for shaded regions and mild winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.
Humidity
August is the least humid month in Joshua, with an average relative humidity of 57%.Rainfall
In Joshua, in August, it is raining for 12.4 days, with typically 2.48" (63mm) of accumulated precipitation. In Joshua, during the entire year, the rain falls for 135 days and collects up to 29.92" (760mm) of precipitation.Snowfall
January, April through October and December are months without snowfall in Joshua.Daylight
In August, the average length of the day is 13h and 19min.On the first day of August, sunrise is at 6:44 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 7:54 pm CDT.
Sunshine
The average sunshine in August is 10.7h.UV index
The average daily maximum UV index in August is 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 7 during August translates into the following directions:
Inhibit overexposure. Warding off sun damage is of utmost importance. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Joshua, 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 (55.8°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 (39°F).
Average pressure in August
Joshua, TX
- Average pressure in August: 29.93"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
Joshua, TX
- Average wind speed in August: 7.2mph
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 (6.8mph).
Average humidity in August
Joshua, TX
- Average humidity in August: 57%
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (57%).
Average rainfall in August
Joshua, TX
- Average rainfall in August: 2.48"
The wettest month (with the highest rainfall) is October (4.21").
The driest month (with the least rainfall) is February (1.5").
Average rainfall days in August
Joshua, TX
- Average rainfall days in August: 12.4 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in August
Joshua, TX
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are January, April, May, June, July, August, September, October and December (0").
Average snowfall days in August
Joshua, 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
Joshua, TX
- Average daylight in August: 13h and 18min
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 August: 10h and 42min
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 36min).
Average sunshine days in August
Joshua, TX
- Average sunshine days in August: 15.8 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is May (13.4 days).
Average UV index in August
Joshua, TX
- Average UV index in August: 7
The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in August
Joshua, TX
- Average cloud cover in August: 21
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in August
Joshua, 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).





