August weather forecast
Grayson, KY

August, the last month of the summer in Grayson, is also a moderately hot month, with an average temperature ranging between min 62.4°F (16.9°C) and max 85.6°F (29.8°C).

Temperature

Grayson starts August with an average high-temperature of a warm 85.6°F (29.8°C), a minor shift from July's 87.3°F (30.7°C). Throughout August, Grayson braces for a considerable drop from daytime highs, with an average low-temperature of 62.4°F (16.9°C).

Heat index

During August, the heat index is calculated to be a sweltering 96.8°F (36°C). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The least humid month in Grayson is August, with an average relative humidity of 74%.

Rainfall

In Grayson, in August, it is raining for 14.9 days, with typically 2.52" (64mm) of accumulated precipitation. In Grayson, Kentucky, during the entire year, the rain falls for 171.1 days and collects up to 31.18" (792mm) of precipitation.

Snowfall

In Grayson, snow does not fall in May through September.

Daylight

The average length of the day in August is 13h and 37min.
On the first day of August in Grayson, sunrise is at 6:34 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 8:02 pm EDT.

Sunshine

The month with the most sunshine in Grayson is August, with an average of 10.3h of sunshine.

UV index

The months with the highest UV index in Grayson are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 6 in August transforms into the following instructions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.