July weather forecastDuncan Hills, TN
July
Weather in July
July in Duncan Hills, Tennessee, is a hot summer month, with an average temperature fluctuating between 87.6°F (30.9°C) and 66.6°F (19.2°C).Temperature
The warmest temperatures occur during July, when averages reach a peak of 87.6°F (30.9°C) and a low of 66.6°F (19.2°C).Heat index
In July, the heat index is appraised at a very hot 102.2°F (39°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Heat index specifics point out values are for conditions of shade and a slight breeze. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. 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. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
In Duncan Hills, the average relative humidity in July is 76%.Rainfall
In Duncan Hills, in July, it is raining for 11.7 days, with typically 1.14" (29mm) of accumulated precipitation. Throughout the year, there are 104.5 rainfall days, and 10.98" (279mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
In July, the average length of the day is 14h and 15min.On the first day of July in Duncan Hills, sunrise is at 6:31 am and sunset at 8:59 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 8:44 pm EDT.
Sunshine
In Duncan Hills, the average sunshine in July is 10.4h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The daily maximum UV index of 6 in July interprets into the following advice:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. 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. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Duncan Hills, TN
- Average high temperature in July: 87.6°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in July: 66.6°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in July
Duncan Hills, TN
- Average pressure in July: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in July
Duncan Hills, TN
- Average wind speed in July: 3.9mph
The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in July
Duncan Hills, TN
- Average humidity in July: 76%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, October and November (75%).
Average rainfall in July
Duncan Hills, TN
- Average rainfall in July: 1.14"
The wettest months (with the highest rainfall) are February and December (1.18").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in July
Duncan Hills, TN
- Average rainfall days in July: 11.7 days
The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is October (6.1 days).
Average snowfall in July
Duncan Hills, TN
- Average snowfall in July: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in July
Duncan Hills, TN
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Duncan Hills, TN
- Average daylight in July: 14h and 12min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in July: 10h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in July
Duncan Hills, TN
- Average sunshine days in July: 16.8 days
The month with the most sunshine days is October (23.6 days).
The month with the least sunshine days is July (16.8 days).
Average UV index in July
Duncan Hills, TN
- Average UV index in July: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in July
Duncan Hills, TN
- Average cloud cover in July: 32
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in July
Duncan Hills, TN
- Average visibility in July: 5mi
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).





