July weather forecast
Falls Church, VA

July is the warmest month of the year in Falls Church, with temperatures reaching up to an average high of 87.4°F (30.8°C). Characterized by high warmth and humidity, it marks the peak of the summer season. The heat is countered by the frequent rainfall, which averages 1.18" (30mm) distributed over roughly 13.5 days. The skies enjoy a rich blue hue due to the minimal cloud cover, making it a dramatic time of the year. Despite the occasional thunderstorm, July is the epitome of the summer weather experience in Falls Church.

Temperature

July, recording an average high temperature of 87.4°F (30.8°C) and a low temperature of 69.1°F (20.6°C), is Falls Church's warmest month.

Heat index

July's heat index is appraised at a very hot 98.6°F (37°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

July is the least humid month, with an average relative humidity of 70%.

Rainfall

In Falls Church, during July, the rain falls for 13.5 days and regularly aggregates up to 1.18" (30mm) of precipitation. Throughout the year, there are 109 rainfall days, and 9.29" (236mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In Falls Church, the average length of the day in July is 14h and 35min.
On the first day of July, sunrise is at 5:47 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 8:20 pm EDT.

Sunshine

July has the most sunshine of the year in Falls Church, with an average of 10.9h 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 reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: During July, 6 as the daily maximum UV index converts into the following advice:
Guard oneself from overexposure. Defence against sun injury is vital. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.