June weather forecast
Johnsonville, SC

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Weather in June

June, the first month of the summer in Johnsonville, is a tropical month, with temperature in the range of an average high of 86.5°F (30.3°C) and an average low of 69.8°F (21°C).

Temperature

As June sets, the average high-temperature shows a slight increase, moving up from a warm 79.7°F (26.5°C) in May to a tropical 86.5°F (30.3°C). Throughout June, Johnsonville witnesses a nighttime temperature average of 69.8°F (21°C).

Heat index

For most parts of June, the heat index is calculated to be a sweltering 100.4°F (38°C). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In Johnsonville, the average relative humidity in June is 78%.

Rainfall

In Johnsonville, South Carolina, in June, it is raining for 16.8 days, with typically 2.13" (54mm) of accumulated precipitation. Throughout the year, there are 147.1 rainfall days, and 21.77" (553mm) of precipitation is accumulated.

Snowfall

In Johnsonville, South Carolina, snow does not fall in March through December.

Daylight

June has the longest days of the year in Johnsonville, South Carolina, with an average of 14h and 24min of daylight.
On the first day of June in Johnsonville, sunrise is at 6:07 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:32 pm EDT.

Sunshine

The average sunshine in June in Johnsonville, South Carolina, is 10.7h.

UV index

June through August, with an average maximum UV index of 7, are months with the highest UV index in Johnsonville. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In June, an average UV index of 7 transforms into the following instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
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Frequently asked questions

How hot is June in Johnsonville?

The average high-temperature, in June, in Johnsonville, is 86.5°F (30.3°C), while the average low-temperature is 69.8°F (21°C). In June, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is calculated to be 100.4°F (38°C).

What is the average humidity in June in Johnsonville?

In June, the average relative humidity in Johnsonville is 78%.

How many days does it rain in June in Johnsonville?

In Johnsonville, in June, during 16.8 rainfall days, 2.13" (54mm) of precipitation is typically accumulated.

When it does not snow in Johnsonville?

March through December are months without snowfall in Johnsonville.

When are the longest days in Johnsonville?

The month with the longest days in Johnsonville, South Carolina, is June, with an average of 14h and 24min of daylight.

How many hours of daylight does Johnsonville have in June?

In Johnsonville, South Carolina, the average day length in June is 14h and 22min.

When is the sunrise / sunset in June in Johnsonville?

In June, on the first day of the month, sunrise is at 6:07 am and sunset at 8:23 pm. On the last day of the month, in Johnsonville, sunrise is at 6:10 am and sunset at 8:32 pm EDT.

How many hours of sunshine does Johnsonville have in June?

In June, the average sunshine duration in Johnsonville, South Carolina, is 10.7h.

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

The months with the highest UV index are June through August, with an average maximum UV index of 7.

What is the UV index intensity in June in Johnsonville?

In Johnsonville, South Carolina, the average daily maximum UV index in June is 7. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.
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
Johnsonville, SC

Average temperature in June - Johnsonville, SC
  • Average high temperature in June: 86.5°F

The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (53.8°F).

  • Average low temperature in June: 69.8°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (37.6°F).

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Average pressure in June
Johnsonville, SC

Average pressure in June - Johnsonville, SC
  • Average pressure in June: 29.97"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in June
Johnsonville, SC

Average wind speed in June - Johnsonville, SC
  • Average wind speed in June: 6.3mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in June
Johnsonville, SC

Average humidity in June - Johnsonville, SC
  • Average humidity in June: 78%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is January (74%).

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Average rainfall in June
Johnsonville, SC

Average rainfall in June - Johnsonville, SC
  • Average rainfall in June: 2.13"

The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is January (0.91").

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Average rainfall days in June
Johnsonville, SC

Average rainfall days in June - Johnsonville, SC
  • Average rainfall days in June: 16.8 days

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (7.7 days).

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Average snowfall in June
Johnsonville, SC

Average snowfall in June - Johnsonville, SC
  • Average snowfall in June: 0"

The months with the highest snowfall are January and February (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in June
Johnsonville, SC

Average snowfall days in June - Johnsonville, SC
  • Average snowfall days in June: 0 days

The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).

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Average daylight in June /
Average sunshine in June
Johnsonville, SC

Average daylight in June / Average sunshine in June - Johnsonville, SC
  • Average daylight in June: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in June: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).

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Average sunshine days in June
Johnsonville, SC

Average sunshine days in June - Johnsonville, SC
  • Average sunshine days in June: 9.9 days

The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is July (8.9 days).

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Average UV index in June
Johnsonville, SC

Average UV index in June - Johnsonville, SC
  • Average UV index in June: 7

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).

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Average cloud cover in June
Johnsonville, SC

Average cloud cover in June - Johnsonville, SC
  • Average cloud cover in June: 30

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 29).

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Average visibility in June
Johnsonville, SC

Average visibility in June - Johnsonville, SC
  • Average visibility in June: 6mi

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

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Johnsonville, South Carolina, USA

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