June weather forecast
Johntown, TN

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Weather in June

The first month of the summer, June, is still a warm month in Johntown, Tennessee, with temperature in the range of an average low of 64.8°F (18.2°C) and an average high of 84.9°F (29.4°C).

Temperature

The shift into June brings a slight increase in the average high-temperature, moving from a moderately hot 76.8°F (24.9°C) in May to a still warm 84.9°F (29.4°C). In Johntown, the expected average low-temperature for June is a comfortable 64.8°F (18.2°C).

Heat index

Throughout June, the heat index is estimated at a sweltering 95°F (35°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

The average relative humidity in June is 77%.

Rainfall

In Johntown, in June, it is raining for 17.2 days, with typically 3.98" (101mm) of accumulated precipitation. Throughout the year, there are 178.1 rainfall days, and 37.99" (965mm) of precipitation is accumulated.

Snowfall

In Johntown, snow does not fall in May through September.

Daylight

With an average of 14h and 36min of daylight, June has the longest days of the year.
On the first day of June, sunrise is at 5:27 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 8:06 pm CDT.

Sunshine

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

UV index

The months with the highest UV index in Johntown are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: In June, the maximum UV index of 6 suggests this advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in Johntown in June?

In June, the average high-temperature and low-temperature are 84.9°F (29.4°C) and 64.8°F (18.2°C) respectively. In June, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is estimated at 95°F (35°C).

What is the average humidity in June?

In June, the average relative humidity is 77%.

How much does it rain in June?

In June, the rain falls for 17.2 days. Throughout June, 3.98" (101mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

When are the longest days?

With an average of 14h and 36min of daylight, June has the longest days of the year.

What is the average length of the day in June?

In June, the average day length is 14h and 36min.

What time are sunrise and sunset in June?

On the first day of June, sunrise is at 5:27 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 8:06 pm CDT.

What month has the most sunshine?

June has the most sunshine of the year, with an average of 10.3h of sunshine.

How many hours of sunshine does Johntown have in June?

The average sunshine duration in June is 10.3h.

What is the month with the highest UV index?

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

How high is the UV index in June?

In June, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
Average humidity
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 June
Johntown, TN

Average temperature in June - Johntown, TN
  • Average high temperature in June: 84.9°F

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).

  • Average low temperature in June: 64.8°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).

Average pressure in June
Johntown, TN

Average pressure in June - Johntown, TN
  • Average pressure in June: 29.97"Hg

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

Average wind speed in June
Johntown, TN

Average wind speed in June - Johntown, TN
  • Average wind speed in June: 5.1mph

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).

Average humidity in June
Johntown, TN

Average humidity in June - Johntown, TN
  • Average humidity in June: 77%

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%).

Average rainfall in June
Johntown, TN

Average rainfall in June - Johntown, TN
  • Average rainfall in June: 3.98"

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

Average rainfall days in June
Johntown, TN

Average rainfall days in June - Johntown, TN
  • Average rainfall days in June: 17.2 days

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).

Average snowfall in June
Johntown, TN

Average snowfall in June - Johntown, TN
  • Average snowfall in June: 0"

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

Average snowfall days in June
Johntown, TN

Average snowfall days in June - Johntown, TN
  • Average snowfall days in June: 0 days

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).

Average daylight in June /
Average sunshine in June
Johntown, TN

Average daylight in June / Average sunshine in June - Johntown, TN
  • Average daylight in June: 14h and 4min

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 June: 10h and 2min

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).

Average sunshine days in June
Johntown, TN

Average sunshine days in June - Johntown, TN
  • Average sunshine days in June: 10.5 days

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

Average UV index in June
Johntown, TN

Average UV index in June - Johntown, TN
  • Average UV index in June: 6

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).

Average cloud cover in June
Johntown, TN

Average cloud cover in June - Johntown, TN
  • Average cloud cover in June: 31

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 31).

Average visibility in June
Johntown, TN

Average visibility in June - Johntown, TN
  • Average visibility in June: 6mi

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).

Johntown, Tennessee, USA

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