July weather forecastJohntown, TN
July
Weather in July
July is a hot summer month in Johntown, Tennessee, with an average temperature varying between 86.9°F (30.5°C) and 67.3°F (19.6°C).Temperature
In Johntown, the peak temperatures are generally noted in July, averaging a high of 86.9°F (30.5°C) and a low of 67.3°F (19.6°C).Heat index
The heat index value for July is estimated at a fiery hot 102.2°F (39°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.The metrics for the heat index are tailored for both shady environments and light winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', comes about by integrating the temperature readings with the humidity levels. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to 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 combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
In Johntown, the average relative humidity in July is 78%.Rainfall
July is the month with the most rainfall. Rain falls for 19.4 days and accumulates 4.53" (115mm) of precipitation.Snowfall
In Johntown, snow does not fall in May through September.Daylight
The average length of the day in July is 14h and 21min.On the first day of the month, sunrise is at 5:30 am and sunset at 8:06 pm. On the last day of July, sunrise is at 5:50 am and sunset at 7:50 pm CDT.
Sunshine
In July, the average sunshine is 10.1h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Johntown. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The UV index of 6 during July leads to these advisories:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Johntown, TN
- Average high temperature in July: 86.9°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (43.7°F).
- Average low temperature in July: 67.3°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure in July
Johntown, TN
- Average pressure in July: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in July
Johntown, TN
- Average wind speed in July: 4.5mph
The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in July
Johntown, TN
- Average humidity in July: 78%
The months with the highest relative humidity are February, March, May and December (79%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in July
Johntown, TN
- Average rainfall in July: 4.53"
The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in July
Johntown, TN
- Average rainfall days in July: 19.4 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in July
Johntown, TN
- Average snowfall in July: 0"
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Johntown, TN
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (5.4 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
Johntown, 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 6min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in July
Johntown, TN
- Average sunshine days in July: 9.3 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in July
Johntown, 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
Johntown, TN
- Average cloud cover in July: 34
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in July
Johntown, TN
- Average visibility in July: 5mi
The months with the highest visibility are February, April, June, September, October, November and December (6mi).
The months with the lowest visibility are January, March, May, July and August (5mi).
