July weather forecast
Martinsville, VA

With the highest average temperatures, July is the climax of Martinsville's summer. Daytime temperatures can reach up to 88.9°F (31.6°C), bringing the zenith of warmth in the year. Whether it is leisurely walks under the moon or relaxing indoor activities, summer afternoons turn into enjoyable summer evenings. Despite the heat, July's charm is hard to deny. As the city moves into August, a slight decline in temperature and increase in rainfall create anticipation.

Temperature

July, on average, is the warmest month, registering a high temperature of 88.9°F (31.6°C) and a low of 66°F (18.9°C).

Heat index

July's average heat index is estimated at a torrid 102.2°F (39°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

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

Rainfall

In Martinsville, during July, the rain falls for 14.3 days and regularly aggregates up to 1.5" (38mm) of precipitation. Throughout the year, in Martinsville, there are 132.1 rainfall days, and 19.96" (507mm) of precipitation is accumulated.

Snowfall

In Martinsville, snow does not fall in April, June through October.

Daylight

The average length of the day in July in Martinsville is 14h and 23min.
On the first day of July, sunrise is at 6:04 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 8:26 pm EDT.

Sunshine

With an average of 10.8h of sunshine, July has the most sunshine of the year in Martinsville.

UV index

In July, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: A daily high UV index of 6 in July leads to these guidelines:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.