July weather forecast
Dunwoody, GA

July is reminiscent of peak summer in Dunwoody. As the hottest month of the year, it serves as a real test for the air conditioning units in homes and vehicles. Notably, July witnesses the highest temperature of the year ranging from 71.4°F (21.9°C) to 90.5°F (32.5°C). Despite these intense temperatures, the sunrise and sunset are awe-inspiring, giving July its own unique allure. People spend the majority of their time in cool, indoor spaces, only venturing out when necessary or during the cooler hours of the day.

Temperature

July, known for its average high temperature of 90.5°F (32.5°C) and an average low temperature of 71.4°F (21.9°C), is the warmest month.

Heat index

The heat index value during July is calculated to be an extremely hot 105.8°F (41°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. 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.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

July and August, with an average relative humidity of 68%, are the least humid months in Dunwoody.

Rainfall

In July, the rain falls for 21.1 days. Throughout July, 4.61" (117mm) of precipitation is accumulated. In Dunwoody, during the entire year, the rain falls for 180.4 days and collects up to 42.91" (1090mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in July is 14h and 9min.
On the first day of July, sunrise is at 6:30 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 8:38 pm EDT.

Sunshine

With an average of 10.6h of sunshine, July has the most sunshine of the year.

UV index

In July, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 6 during July leads to these instructions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.