August weather forecast and climate
Johnson City, TN

The front entrance to the Public Library in Johnson City, Tennessee, with flags flying on either side of the main entrance
The front entrance to the Public Library in Johnson City, Tennessee, with flags flying on either side of the main entrance

What is the average temperature in August in Johnson City?

In August, in Johnson City, the average high-temperature is 84.9°F (29.4°C), and the average low-temperature is 63°F (17.2°C).
Average temperature in August - Johnson City, TN
  • Average high temperature in August: 85°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (45°F).

  • Average low temperature in August: 63°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (25°F).

Average humidity in August - Johnson City, TN
  • Average humidity in August: 76.5%

Months with the highest relative humidity are August and September (76.5%).
The month with the lowest relative humidity is January (59%).

Average rainfall in August - Johnson City, TN
  • Average rainfall in August: 4.2"

The wettest month (with the highest rainfall) is July (5.4").
The driest month (with the lowest rainfall) is October (2.4").

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

The month with the highest snowfall is January (5.2").
Months with the lowest snowfall are May, June, July, August, September and October (0").

Average daylight in August - Johnson City, TN
  • Average daylight in August: 13.5h

The month with the longest days is June (Average daylight: 14.6h).
The month with shortest days is December (Average daylight: 9.7h).

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