July weather forecastDuff, TN
July
Weather in July
July is a tropical summer month in Duff, Tennessee, with an average temperature fluctuating between 63.7°F (17.6°C) and 86°F (30°C).Temperature
Duff's July weather, marked by an average high temperature of 86°F (30°C) and an average low temperature of 63.7°F (17.6°C), is the warmest in the year.Heat index
The heat index value for July is estimated at a fiery hot 98.6°F (37°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.
Humidity
The average relative humidity in July in Duff is 77%.Rainfall
In Duff, in July, during 19.3 rainfall days, 3.62" (92mm) of precipitation is typically accumulated. In Duff, during the entire year, the rain falls for 167 days and collects up to 33.62" (854mm) of precipitation.Snowfall
In Duff, snow does not fall in May through October.Daylight
In July, the average length of the day is 14h and 22min.On the first day of July in Duff, sunrise is at 6:22 am and sunset at 8:58 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 8:42 pm EDT.
Sunshine
In July, the average sunshine is 10h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high UV index of 6 in July translates into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Duff, TN
- Average high temperature in July: 86°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (42.3°F).
- Average low temperature in July: 63.7°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure in July
Duff, TN
- Average pressure in July: 30.01"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in July
Duff, TN
- Average wind speed in July: 3.7mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in July
Duff, TN
- Average humidity in July: 77%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (76%).
Average rainfall in July
Duff, TN
- Average rainfall in July: 3.62"
The wettest month (with the highest rainfall) is February (3.94").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in July
Duff, TN
- Average rainfall days in July: 19.3 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in July
Duff, TN
- Average snowfall in July: 0"
The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Duff, TN
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Duff, TN
- Average daylight in July: 14h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in July: 10h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in July
Duff, TN
- Average sunshine days in July: 10.1 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (10.1 days).
Average UV index in July
Duff, 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
Duff, TN
- Average cloud cover in July: 34
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are June and August (Cloud cover 32).
Average visibility in July
Duff, TN
- Average visibility in July: 5mi
The month with the highest visibility is November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October and December (5mi).





