August weather forecast
Henderson, WV

In August, the scorching heat of July gives way to slightly more manageable temperatures. Henderson residents continue to enjoy warm afternoons and cool breezy evenings during this month. While the high summer temperatures make their gradual exit, the month remains very much a summer month. Sunshine hours remain relatively high, ensuring ample opportunities to enjoy late-summer activities. Notably, temperatures slightly cool off to a maximum of 85.5°F (29.7°C) compared to July, indicating the beginning of summer's end.

Temperature

The shift into August uncovers an average high-temperature of a warm 85.5°F (29.7°C), subtly different from the previous month. Henderson's nighttime average of 62.6°F (17°C) during August reflects a substantial decrease from the daytime temperature.

Heat index

August's mean heat index is estimated at a sweltering 95°F (35°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. 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 'felt air temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

August is the least humid month, with an average relative humidity of 74%.

Rainfall

In Henderson, in August, it is raining for 13.8 days, with typically 1.89" (48mm) of accumulated precipitation. In Henderson, West Virginia, during the entire year, the rain falls for 169.2 days and collects up to 27.56" (700mm) of precipitation.

Snowfall

In Henderson, snow does not fall in May through October.

Daylight

In Henderson, the average length of the day in August is 13h and 38min.
On the first day of the month, sunrise is at 6:30 am and sunset at 8:39 pm. On the last day of August, sunrise is at 6:57 am and sunset at 7:59 pm EDT.

Sunshine

August has the most sunshine of the year, with an average of 10.5h of sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. 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. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.