July weather forecast
Winchester, VA

July takes over as the hottest month of the year in Winchester, with temperatures soaring to an average high of 86°F (30°C). Sunlight remains abundant, and the UV index peaks at this time. The city basks in the peak of summer, infused with lush greenery due to fairly regular rainfall. Although the occasional thunderstorm might occur, this month generally maintains a summer holiday vibe.

Temperature

July, noted for its average high-temperature of 86°F (30°C) and an average low-temperature of 64°F (17.8°C), is considered the warmest month.

Heat index

During July, the heat index is calculated to be a sweltering 96.8°F (36°C). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

The least humid month in Winchester, Virginia, is July, with an average relative humidity of 73%.

Rainfall

In Winchester, during July, the rain falls for 17.8 days and regularly aggregates up to 2.99" (76mm) of precipitation. Throughout the year, there are 167.2 rainfall days, and 29.61" (752mm) of precipitation is accumulated.

Snowfall

In Winchester, snow does not fall in June through September.

Daylight

The average length of the day in July in Winchester is 14h and 36min.
On the first day of the month, sunrise is at 5:50 am and sunset at 8:42 pm. On the last day of July, in Winchester, Virginia, sunrise is at 6:12 am and sunset at 8:25 pm EDT.

Sunshine

The month with the most sunshine in Winchester is July, with an average of 10.7h of sunshine.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: A maximum high daily UV index of 6 during July translates into the following directions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.