August weather forecast
Plano, TX

August continues the summer narrative in Plano, witnessing maximum temperatures rocketing to a fiery 95.5°F (35.3°C) from 75.9°F (24.4°C). This month takes claim as the pinnacle of summer, enduring the highest temperatures of the year. Despite being draped in sunlight, the city endures lower humidity levels, making the heat more palpable. While wind conditions provide nominal respite, the city benefits from the sporadic summer rain. Embodying the summer quintessence, August spells out clear, hot days in Plano.

Temperature

August is the warmest month of the year in Plano, registering average temperatures as high as 95.5°F (35.3°C) and as low as 75.9°F (24.4°C).

Heat index

The heat index value for August is evaluated at a blisteringly hot 111.2°F (44°C). Be cautious: Heat exhaustion along with heat cramps are predicted. Heatstroke is a possible consequence of continuous physical effort.
Realize that the values for the heat index are set for shaded places and light winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The least humid month is August, with an average relative humidity of 56%.

Rainfall

In Plano, during August, the rain falls for 12.3 days and regularly aggregates up to 2.56" (65mm) of precipitation. In Plano, during the entire year, the rain falls for 143 days and collects up to 33.15" (842mm) of precipitation.

Snowfall

In Plano, snow does not fall in March through October.

Daylight

The average length of the day in August is 13h and 20min.
On the first day of the month, sunrise is at 6:40 am and sunset at 8:25 pm. On the last day of August, sunrise is at 7:01 am and sunset at 7:52 pm CDT.

Sunshine

August has the most sunshine of the year, with an average of 11h of sunshine.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In August, a regular UV index of 7 translates into these guidelines:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.