July weather forecast
Manassas Park, VA

July is the warmest month in Manassas Park with the mercury levels reaching as high as 88.3°F (31.3°C). Despite the intense heat, life flourishes with significantly lower cloud cover, ensuring the presence of ample sunlight. This peak summer phase is punctuated by consistent episodes of rainfall that provide relief from the heat. Winds gust moderately, offering an occasional fresh breeze. As July steps out, August continues to uphold the reign of summer with its intense temperatures.

Temperature

Manassas Park, Virginia, experiences its highest average temperatures in July, reaching a peak of 88.3°F (31.3°C) and a minimum of 67.1°F (19.5°C).

Heat index

For July, the heat index is appraised at a very hot 102.2°F (39°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

July is the least humid month, with an average relative humidity of 72%.

Rainfall

In Manassas Park, Virginia, in July, during 15.8 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. In Manassas Park, Virginia, during the entire year, the rain falls for 157.5 days and collects up to 30.35" (771mm) of precipitation.

Snowfall

May through October are months without snowfall in Manassas Park.

Daylight

In Manassas Park, the average length of the day in July is 14h and 34min.
On the first day of July, sunrise is at 5:48 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:21 pm EDT.

Sunshine

July has the most sunshine of the year, with an average of 10.7h 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 vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average maximum UV index of 6 in July leads to these recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.