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. 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

In Johnson City, July records the highest average temperatures, peaking at 83.3°F and reaching a low of 60.6°F.

Heat index

The heat index in July is evaluated at a tropical 91.4°F. Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.

Humidity

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

Rainfall

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

Snowfall

May through September are months without snowfall in Johnson City.

Daylight

In Johnson City, 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, sunrise is at 6:35 am and sunset at 8:36 pm EDT.

Sunshine

The average sunshine in July is 10.4h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 6 during July translates into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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FAQ

What part of the year is the hottest in Johnson City?

The temperatures reach their highest averages in July, with highs of 83.3°F and lows of 60.6°F.

Is it hot in Johnson City during July?

In July, the average high-temperature and low-temperature in Johnson City are 83.3°F and 60.6°F respectively. In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is evaluated at 91.4°F.

What is the average humidity in July in Johnson City?

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

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

In Johnson City, in July, during 19.6 rainfall days, 3.11" of precipitation is typically accumulated.

When it does not snow in Johnson City?

May through September are months without snowfall in Johnson City, Tennessee.

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 8:36 pm EDT.

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

The average sunshine duration in July is 10.4h.

What are the months with the highest UV index in Johnson City?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Johnson City, Tennessee.

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

In July, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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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