Monthly weather forecast and climate
Johnson City, TN

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

Weather in January

January, like December, in Johnson City, Tennessee, is another cold winter month, with average temperature fluctuating between 41.5°F (5.3°C) and 26.6°F (-3°C). With an average high-temperature of 41.5°F (5.3°C) and an average low-temperature of 26.6°F (-3°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter, in Johnson City, is a frosty month, with average temperature ranging between max 46.4°F (8°C) and min 29.7°F (-1.3°C). In February, the average high-temperature is essentially the same as in January - a frosty 46.4°F (8°C). Weather in February »

Weather in March

March, the first month of the spring, in Johnson City, is a cool month, with temperature in the range of an average high of 54.5°F (12.5°C) and an average low of 36.3°F (2.4°C). In March, the average high-temperature slightly increases, from a frosty 46.4°F (8°C) in February, to a fresh 54.5°F (12.5°C). Weather in March »

Weather in April

April in Johnson City, Tennessee, is an enjoyable spring month, with average temperature fluctuating between 44.2°F (6.8°C) and 64.9°F (18.3°C). In April, the average high-temperature increases, from a fresh 54.5°F (12.5°C) in March, to an enjoyable 64.9°F (18.3°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in Johnson City, Tennessee, with temperature in the range of an average low of 51.8°F (11°C) and an average high of 73.4°F (23°C). In May, the average high-temperature slightly increases, from an enjoyable 64.9°F (18.3°C) in April, to a warm 73.4°F (23°C). Weather in May »

Weather in June

June, the first month of the summer, in Johnson City, is still a warm month, with average temperature ranging between min 57.4°F (14.1°C) and max 80.2°F (26.8°C). In Johnson City, the average high-temperature in June slightly increases, from 73.4°F (23°C) in May, to a still moderately hot 80.2°F (26.8°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Johnson City, Tennessee, with average temperature fluctuating between 60.6°F (15.9°C) and 83.3°F (28.5°C). July is the warmest month, with an average high-temperature of 83.3°F (28.5°C) and an average low-temperature of 60.6°F (15.9°C). In July, the average heat index is appraised at a tropical 90.9°F (32.7°C). Weather in July »

Weather in August

August, the last month of the summer, in Johnson City, is also a moderately hot month, with average temperature ranging between min 59.5°F (15.3°C) and max 82.6°F (28.1°C). In Johnson City, the average high-temperature is practically the same as in July - a still warm 82.6°F (28.1°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Johnson City, Tennessee, with average temperature fluctuating between 54.9°F (12.7°C) and 77.5°F (25.3°C). In September, the average high-temperature is practically the same as in August - a still warm 77.5°F (25.3°C). Weather in September »

Weather in October

October, like September, in Johnson City, Tennessee, is another enjoyable autumn month, with temperature in the range of an average high of 65.8°F (18.8°C) and an average low of 45.3°F (7.4°C). In October, the average high-temperature drops, from a moderately hot 77.5°F (25.3°C) in September, to an enjoyable 65.8°F (18.8°C). Weather in October »

Weather in November

November, the last month of the autumn, in Johnson City, is also a fresh month, with average temperature ranging between min 36°F (2.2°C) and max 54.5°F (12.5°C). In November, the average high-temperature drops, from a comfortable 65.8°F (18.8°C) in October, to a cool 54.5°F (12.5°C). Weather in November »

Weather in December

December, the first month of the winter, in Johnson City, is still a chilly month, with average temperature varying between 32.4°F (0.2°C) and 46.6°F (8.1°C). In December, the average high-temperature slightly decreases, from a cool 54.5°F (12.5°C) in November, to a chilly 46.6°F (8.1°C). Weather in December »
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FAQ

What is the coldest month in Johnson City?

The coldest month in Johnson City is January, with an average high-temperature of 41.5°F (5.3°C) and an average low-temperature of 26.6°F (-3°C).

How much does it rain in Johnson City?

In Johnson City, during the entire year, the rain falls for 187.8 days and collects up to 32.76" (832mm) of precipitation.

When does it snow in Johnson City?

January through April, October through December are months with snowfall.

How much does it snow in Johnson City?

Throughout the year, in Johnson City, there are 32.1 snowfall days, and 13.31" (338mm) of snow is accumulated.

What is the month with the least sunshine in Johnson City?

With an average of 5h of sunshine, January has the least sunshine of the year.

When is the lowest UV index in Johnson City?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.

What are the most humid months in Johnson City?

Months with the highest humidity in Johnson City, Tennessee, are February and December, with an average relative humidity of 79%.

What is the wettest month in Johnson City?

The month with the most rainfall in Johnson City, Tennessee, is February when the rain falls for 13.6 days and typically aggregates up to 3.27" (83mm) of precipitation.

When it does not snow in Johnson City?

May through September are months without snowfall in Johnson City.

When are the longest days in Johnson City?

The month with the longest days in Johnson City is June, with an average of 14.6h of daylight.

What month has the most sunshine in Johnson City?

The month with the most sunshine in Johnson City is June, with an average of 10.6h of sunshine.

When is 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.

What is the warmest month in Johnson City?

With an average high-temperature of 83.3°F (28.5°C) and an average low-temperature of 60.6°F (15.9°C), July is the warmest month in Johnson City.

What is the driest month in Johnson City?

The month with the least rainfall in Johnson City, Tennessee, is September when the rain falls for 15.5 days and typically collects 1.77" (45mm) of precipitation.

What is the least humid month in Johnson City?

With an average relative humidity of 75%, November is the least humid month.

When does it snow the most in Johnson City?

December is the month with the most snowfall. Snow falls for 6.2 days and accumulates 3.74" (95mm) of snow.

What is the month with the shortest days in Johnson City?

With an average of 9.7h of daylight, December has the shortest days of the year.

Average temperature
Johnson City, TN

Average temperature - Johnson City, TN

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).

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
Johnson City, TN

Average pressure - Johnson City, TN

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

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Average wind speed
Johnson City, TN

Average wind speed - Johnson City, TN

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
Johnson City, TN

Average humidity - Johnson City, TN

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
Johnson City, TN

Average rainfall - Johnson City, TN

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
Johnson City, TN

Average rainfall days - Johnson City, TN

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
Johnson City, TN

Average snowfall - Johnson City, TN

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

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Average snowfall days
Johnson City, TN

Average snowfall days - Johnson City, TN

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

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Average daylight / Average sunshine
Johnson City, TN

Average daylight / Average sunshine - Johnson City, TN

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

The month with the most sunshine is June (Average sunshine: 10.6h).
The month with the least sunshine is January (Average sunshine: 5h).

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Average sunshine days
Johnson City, TN

Average sunshine days - Johnson City, TN

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
Johnson City, TN

Average UV index - Johnson City, TN

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

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Average visibility
Johnson City, TN

Average visibility - Johnson City, TN

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

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