July weather forecast
Johnson City, TN

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The front entrance to the Public Library in Johnson City, Tennessee
The front entrance to the Public Library in Johnson City, Tennessee

Weather in July

July marks the zenith of summer in Johnson City, with temperatures reaching their peak at 83.3°F (28.5°C). Extended daylight hours afford plenty of opportunities for enjoying outdoor activities and exploring the city’s attractions. Despite the higher temperatures, the relative humidity remains on par with the previous months, providing a characteristic summer feel. Evening breezes procure a welcome change from the heat of the day. Precipitation is interspersed throughout the month, imparting an occasional coolness to the warm summer days.

Temperature

July stands out as Johnson City's warmest month, with an average high-temperature of 83.3°F (28.5°C) and a low-temperature of 60.6°F (15.9°C).

Heat index

For July, the heat index is estimated at a tropical 91.4°F (33°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

In July, the average relative humidity in Johnson City, Tennessee, is 76%.

Rainfall

In Johnson City, in July, during 19.6 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. Throughout the year, in Johnson City, there are 187.8 rainfall days, and 32.76" (832mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in July is 14h and 21min.
On the first day of the month, sunrise is at 6:15 am and sunset at 8:51 pm. On the last day of July, in Johnson City, sunrise is at 6:35 am and sunset at 8:35 pm EDT.

Sunshine

In July, the average sunshine in Johnson City is 10.4h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 6 during July translates into the following directions:
Fend off overexposure. Sun protection is vital. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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Frequently asked questions

What month is the hottest in Johnson City?

July is the month when Johnson City sees the average highest temperatures, with a high of 83.3°F (28.5°C) and a low of 60.6°F (15.9°C).

How hot is it in Johnson City in July?

The high-temperature in Johnson City during July is 83.3°F (28.5°C) and the low-temperature is 60.6°F (15.9°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in July is estimated at 91.4°F (33°C).

What is the average humidity in July in Johnson City?

In Johnson City, the average relative humidity in July is 76%.

How many days does it rain in July in Johnson City?

In Johnson City, during July, the rain falls for 19.6 days and regularly aggregates up to 3.11" (79mm) of precipitation.

When it does not snow in Johnson City?

In Johnson City, Tennessee, snow does not fall in May through September.

How many hours of daylight does Johnson City have in July?

In Johnson City, Tennessee, the average day length in July is 14h and 21min.

When are sunrise and sunset in July in Johnson City?

In July, on the first day of the month, sunrise is at 6:15 am and sunset at 8:51 pm. On the last day of the month, in Johnson City, Tennessee, sunrise is at 6:35 am and sunset at 8:35 pm EDT.

How long on average sun shines in July in Johnson City?

In July, the average sunshine duration in Johnson City is 10.4h.

What is the month with the highest UV index in Johnson City?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the UV index reading in July in Johnson City?

In July, the average daily maximum UV index in Johnson City, Tennessee, is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Johnson City, TN

Average temperature in July - Johnson City, TN
  • Average high temperature in July: 83.3°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in July: 60.6°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).

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Average pressure in July
Johnson City, TN

Average pressure in July - Johnson City, TN
  • Average pressure in July: 30.02"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

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Average wind speed in July
Johnson City, TN

Average wind speed in July - Johnson City, TN
  • Average wind speed in July: 4mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

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Average humidity in July
Johnson City, TN

Average humidity in July - Johnson City, TN
  • Average humidity in July: 76%

The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is November (75%).

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Average rainfall in July
Johnson City, TN

Average rainfall in July - Johnson City, TN
  • Average rainfall in July: 3.11"

The wettest month (with the highest rainfall) is February (3.27").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days in July
Johnson City, TN

Average rainfall days in July - Johnson City, TN
  • Average rainfall days in July: 19.6 days

The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (11.2 days).

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Average snowfall in July
Johnson City, TN

Average snowfall in July - Johnson City, TN
  • Average snowfall in July: 0"

The month with the highest snowfall is December (3.74").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in July
Johnson City, TN

Average snowfall days in July - Johnson City, TN
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
Johnson City, TN

Average daylight in July / Average sunshine in July - Johnson City, TN
  • Average daylight in July: 14h and 2min

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 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

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Average sunshine days in July
Johnson City, TN

Average sunshine days in July - Johnson City, TN
  • Average sunshine days in July: 8.3 days

The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is July (8.3 days).

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Average UV index in July
Johnson City, TN

Average UV index in July - Johnson City, TN
  • Average UV index in July: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in July
Johnson City, TN

Average cloud cover in July - Johnson City, TN
  • Average cloud cover in July: 33

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are June and August (Cloud cover 31).

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Average visibility in July
Johnson City, TN

Average visibility in July - Johnson City, TN
  • Average visibility in July: 6mi

The months with the highest visibility are April, June, July, October and November (6mi).
The months with the lowest visibility are January, February, March, May, August, September and December (5mi).

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Johnson City, Tennessee, USA

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