Climate and monthly weather forecast
Johntown, TN

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Weather in January

January, the same as December, in Johntown, Tennessee, is a frosty winter month, with temperature in the range of an average high of 43.7°F (6.5°C) and an average low of 29.5°F (-1.4°C). Temperature records mark January as the coldest month, with highs averaging 43.7°F (6.5°C) and lows at 29.5°F (-1.4°C). Weather in January »

Weather in February

The last month of the winter, February, is another chilly month in Johntown, Tennessee, with an average temperature fluctuating between 33.1°F (0.6°C) and 48.7°F (9.3°C). An average high-temperature of a still chilly 48.7°F (9.3°C) marks February, exhibiting a close resemblance to the conditions in January. Weather in February »

Weather in March

The first month of the spring, March, is a moderate month in Johntown, Tennessee, with an average temperature ranging between min 40.1°F (4.5°C) and max 57.6°F (14.2°C). A slight uplift in the average high-temperature marks March, adjusting from February's chilly 48.7°F (9.3°C) to a moderate 57.6°F (14.2°C). Weather in March »

Weather in April

April in Johntown, Tennessee, is a pleasant spring month, with an average temperature ranging between min 48.9°F (9.4°C) and max 68.5°F (20.3°C). An escalation in the average high-temperature is seen with the onset of April, moving from a moderate 57.6°F (14.2°C) in March to a pleasant 68.5°F (20.3°C). Weather in April »

Weather in May

May, the last month of the spring in Johntown, is a moderately hot month, with an average temperature varying between 76.8°F (24.9°C) and 57.2°F (14°C). Johntown's weather shows a minor temperature rise with the arrival of May, moving from an agreeable 68.5°F (20.3°C) in April to a warm 76.8°F (24.9°C). Weather in May »

Weather in June

The first month of the summer, June, is also a moderately hot month in Johntown, Tennessee, with an average temperature fluctuating between 64.8°F (18.2°C) and 84.9°F (29.4°C). With the onset of June, Johntown experiences a subtle temperature shift, with the average high-temperature moving from 76.8°F (24.9°C) in May to a still moderately hot 84.9°F (29.4°C). Weather in June »

Weather in July

July in Johntown, Tennessee, is a hot summer month, with temperature in the range of an average high of 86.9°F (30.5°C) and an average low of 67.3°F (19.6°C). July, with an average high of 86.9°F (30.5°C) and a low of 67.3°F (19.6°C), signifies the warmest month of the year. July's heat index is estimated at a very hot 102.2°F (39°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Johntown, Tennessee, with an average temperature fluctuating between 85.6°F (29.8°C) and 66.7°F (19.3°C). August reports an average high-temperature of a moderately hot 85.6°F (29.8°C), slightly varied from July's 86.9°F (30.5°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Johntown, Tennessee, with temperature in the range of an average low of 61°F (16.1°C) and an average high of 80.2°F (26.8°C). The transition to September results in a modest reduction in average high-temperature, moving from a moderately hot 85.6°F (29.8°C) in August to a still warm 80.2°F (26.8°C). Weather in September »

Weather in October

October, like September, is an agreeable autumn month in Johntown, Tennessee, with an average temperature fluctuating between 68.7°F (20.4°C) and 49.1°F (9.5°C). With the onset of October, Johntown experiences a modest temperature adjustment, with the average high-temperature receding from a warm 80.2°F (26.8°C) in September to an agreeable 68.7°F (20.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is another mild month in Johntown, Tennessee, with temperature in the range of an average low of 39.2°F (4°C) and an average high of 56.3°F (13.5°C). November implies a gentle temperature shift, with average high-temperatures reducing from October's pleasant 68.7°F (20.4°C) to a mild 56.3°F (13.5°C). Weather in November »

Weather in December

December, the first month of the winter in Johntown, is also a frosty month, with an average temperature varying between 47.8°F (8.8°C) and 35.1°F (1.7°C). December is characterized by a mild reduction in the average high-temperature, from a mild 56.3°F (13.5°C) in November to a frosty 47.8°F (8.8°C). Weather in December »
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Frequently asked questions

What time of the year is the coldest in Johntown?

In Johntown, the average lowest temperatures are observed in January, with a high of 43.7°F (6.5°C) and a low of 29.5°F (-1.4°C).

How much does it rain in Johntown?

Throughout the year, in Johntown, Tennessee, there are 178.1 rainfall days, and 37.99" (965mm) of precipitation is accumulated.

When does it snow in Johntown?

January through April, October through December are months with snowfall in Johntown, Tennessee.

What is the snowiest month in Johntown?

January is the month with the most snowfall in Johntown, Tennessee. Snow falls for 5.4 days and accumulates 1.38" (35mm) of snow.

How much does it snow in Johntown?

Throughout the year, there are 17.2 snowfall days, and 4.25" (108mm) of snow is accumulated.

What are the months with the lowest UV index in Johntown?

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

What are the most humid months in Johntown?

The months with the highest humidity are February, March, May and December, with an average relative humidity of 79%.

What is the month with the least sunshine in Johntown?

The month with the least sunshine in Johntown is February, with an average of 4.4h of sunshine.

When is Daylight Saving Time (DST) in Johntown?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

When it does not snow in Johntown?

May through September are months without snowfall.

What are the months with the highest UV index in Johntown?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Johntown.

When are the longest days in Johntown?

The month with the longest days is June, with an average of 14h and 36min of daylight.

What month has the most sunshine in Johntown?

With an average of 10.3h of sunshine, June has the most sunshine of the year in Johntown.

What is the warmest month in Johntown?

July, with average temperatures reaching a high of 86.9°F (30.5°C) and a low of 67.3°F (19.6°C), is the warmest month in Johntown.

What is the wettest month in Johntown?

The month with the most rainfall is July, when the rain falls for 19.4 days and typically aggregates up to 4.53" (115mm) of precipitation.

What is the driest month in Johntown?

September is the month with the least rainfall in Johntown. Rain falls for 14.2 days and accumulates 2.05" (52mm) of precipitation.

What are the least humid months in Johntown?

October and November, with an average relative humidity of 75%, are the least humid months in Johntown.

What is the month with the shortest days in Johntown?

The month with the shortest days is December, with an average of 9h and 42min of daylight.

Average temperature
Johntown, TN

Average temperature - Johntown, TN

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (43.7°F).

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

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Average pressure
Johntown, TN

Average pressure - Johntown, TN

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed
Johntown, TN

Average wind speed - Johntown, TN

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity
Johntown, TN

Average humidity - Johntown, TN

The months with the highest relative humidity are February, March, May and December (79%).
The months with the lowest relative humidity are October and November (75%).

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Average rainfall
Johntown, TN

Average rainfall - Johntown, TN

The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is September (2.05").

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Average rainfall days
Johntown, TN

Average rainfall days - Johntown, TN

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (9.7 days).

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Average snowfall
Johntown, TN

Average snowfall - Johntown, TN

The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Johntown, TN

Average snowfall days - Johntown, TN

The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Johntown, TN

Average daylight / Average sunshine - Johntown, TN

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).

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days
Johntown, TN

Average sunshine days - Johntown, TN

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (9.3 days).

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Average UV index
Johntown, TN

Average UV index - Johntown, TN

The months with the highest UV index are May, 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 visibility
Johntown, TN

Average visibility - Johntown, TN

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

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Johntown, Tennessee, USA

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