August weather forecast
Palmyra, VA

August holds onto the summer essence with high temperatures peaking at 86.9°F (30.5°C) and an average rainfall of 2.09" (53mm). While there is a slight reduction in temperatures compared to July, the warm muggy weather persists. Long hours of sunshine and heat continue to rule, despite marginal increases in cloud coverage and humidity. The wind continues to stay subdued during August, aiding the summer ambiance. While the UV index remains elevated, residents remain cautious of sun exposure.

Temperature

Palmyra's average high-temperature in August is a still hot 86.9°F (30.5°C), marking an insignificant difference from the 89.6°F (32°C) of July. Palmyra logs a considerable temperature decrease from the daytime highs during the nights in August, with an average reading of 64.6°F (18.1°C).

Heat index

The average heat index in August is estimated at a sweltering 98.6°F (37°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Note that heat index values are valued for light wind and location in the shade. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. 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.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in August is 72%.

Rainfall

In Palmyra, in August, it is raining for 13.5 days, with typically 2.09" (53mm) of accumulated precipitation. Throughout the year, there are 142.4 rainfall days, and 25.51" (648mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In August, the average length of the day in Palmyra is 13h and 35min.
On the first day of August, sunrise is at 6:17 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 7:43 pm EDT.

Sunshine

In Palmyra, the average sunshine in August is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In August, a daily UV index of 6 turns into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. A hat with a broad brim is indispensable, filtering out up to half of UV rays.