Johnson City (TN) monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Johnson City

Johnson City average temperature chart (Celsius) Johnson City average temperature chart (Fahrenheit)
Average monthly temperatures in Johnson City (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.4 8.6 14.3 19.1 23.4 27.1 28.6 28.2 25.4 20 14.2 8.8
°F 43.6 47.5 57.8 66.4 74.2 80.8 83.5 82.8 77.7 67.9 57.6 47.8

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Johnson City monthly rainfall chart (mm) Johnson City monthly rainfall chart (inches)
Average monthly rainfall in Johnson City (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 84 90 102 89 99 94 110 92 84 71 79 85
inches 3.3 3.6 4 3.5 3.9 3.7 4.3 3.6 3.3 2.8 3.1 3.4
Rainy days 12 11 12 11 12 11 12 11 9 9 10 11

Average annual rainfall in Johnson City: 1033.233mm (406.8 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Johnson City

Johnson City average daily sunshine chart
Average daily sunshine Johnson City
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.6 6.3 7.4 8.7 9 9.5 9 8.3 7.6 7.4 5.9 5.3

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Johnson City average minimum / maximum temperatures (Celsius) Johnson City average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Johnson City (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -4.9 -3.5 1 5.2 9.9 14.4 16.7 16.3 12.7 5.9 1.5 -2.7
Max °C 6.7 8.9 14.7 19.5 23.8 27.4 28.9 28.5 25.7 20.3 14.6 9.1
Min °F 23.2 25.7 33.7 41.3 49.7 57.9 62.1 61.3 54.9 42.6 34.6 27.2
Max °F 33.6 36.9 46 54.1 62.2 69.6 73 72.3 66.6 55.6 46.4 37.8

Sea temperature

The graph below shows the average sea temperature.

Johnson City average sea temperature chart (Celsius) Johnson City average sea temperature chart (Fahrenheit)
Average sea temperature around Johnson City in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 10.8 10 10.1 12.1 16.4 21.6 25.2 25.9 24.2 20.3 16.1 12.8
°F 51.4 50 50.2 53.8 61.5 70.9 77.3 78.6 75.6 68.5 60.9 55.1

Wind speed

The graph below shows the average wind speed.

Johnson City average winspeed by month (km/h) Johnson City average winspeed by month (mph)
Average wind speed in Johnson City (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 15 15 16 14 12 11 10 9 10 11 13 14
mph 9 9 10 9 7 7 6 6 6 7 8 9

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Johnson City relative humidity averages
Average relative humidity in Johnson City
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
71% 68% 65% 63% 72% 75% 78% 79% 78% 73% 72% 72%

Other monthly averages

UV index Best time to go?

Johnson City weather stats

Johnson City weather statistics
Hottest month: July 28.6°C 83.5°F
Driest month: October 71mm 2.8ins
Sunniest month: April 8.7hrs
Coldest month: January 6.4°C 43.5°F
Wettest month: July 110mm 4.3ins
Warmest sea: August 25.9°C 78.6°F
Map showing location of Johnson City (36.31344, -82.35347) Johnson City map pin © Google

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