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

Martinsville, Virginia, reaches its highest average temperatures in July, measuring 88.9°F (31.6°C) at the peak and 66°F (18.9°C) at the lowest.

Heat index

The heat index for July is evaluated at a sweltering 102.2°F (39°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is achieved by amalgamating air temperature with the relative humidity readings. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly meaningful for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and 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 Martinsville, in July, it is raining for 14.3 days, with typically 1.5" (38mm) of accumulated precipitation. Throughout the year, in Martinsville, Virginia, there are 132.1 rainfall days, and 19.96" (507mm) of precipitation is accumulated.

Snowfall

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

Daylight

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

UV index

The average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: In July, the maximum UV index of 6 suggests these recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.