July weather forecast
Colonial Heights, VA

July in Colonial Heights witnesses peak summer conditions, with soaring temperatures and largely bright, sunny days. The high reaches an apex of 90.1°F (32.3°C), making this month the warmest in the year. Residents anticipate beach days and picnics, taking advantage of the summertime weather. Despite the high heat, the occurrence of atmospheric humidity and rainfall helps moderate the sweltering temperatures. Overall, July in Colonial Heights presents an archetype of summer weather perfect for all outdoor activities.

Temperature

July is Colonial Heights's warmest month, registering average high temperatures of 90.1°F (32.3°C) and lows of 69.4°F (20.8°C).

Heat index

July's average heat index is calculated to be a blisteringly hot 107.6°F (42°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. 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 remain especially vital for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

The least humid month is July, with an average relative humidity of 71%.

Rainfall

In Colonial Heights, in July, during 11.5 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. In Colonial Heights, during the entire year, the rain falls for 109.6 days and collects up to 9.96" (253mm) of precipitation.

Snowfall

May through October are months without snowfall in Colonial Heights.

Daylight

The average length of the day in July is 14h and 26min.
On the first day of July in Colonial Heights, sunrise is at 5:53 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:17 pm EDT.

Sunshine

With an average of 10.7h of sunshine, July has the most sunshine of the year.

UV index

July is the month with the highest UV index, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 7 during July translates into the following guidance:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.