June weather forecast
Joanna, SC

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Weather in June

June, the first month of the summer in Joanna, is a hot month, with an average temperature varying between 67.5°F (19.7°C) and 88.5°F (31.4°C).

Temperature

Joanna perceives a slight temperature ascent during June, with average high-temperatures adjusting from a moderately hot 80.8°F (27.1°C) in May to a hot 88.5°F (31.4°C). Joanna experiences an average nighttime temperature of 67.5°F (19.7°C) in the month of June.

Heat index

In June, the heat index is appraised at a sweltering 102.2°F (39°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In June, the average relative humidity in Joanna is 71%.

Rainfall

In Joanna, in June, during 13.9 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. In Joanna, during the entire year, the rain falls for 150.3 days and collects up to 31.85" (809mm) of precipitation.

Snowfall

In Joanna, snow does not fall in April through November.

Daylight

June has the longest days of the year in Joanna, South Carolina, with an average of 14h and 24min of daylight.
On the first day of the month, sunrise is at 6:15 am and sunset at 8:34 pm. On the last day of June, sunrise is at 6:18 am and sunset at 8:43 pm EDT.

Sunshine

The average sunshine in June is 10.6h.

UV index

With an average maximum UV index of 7, June is the month with the highest UV index. 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 7 translates into these guidelines:
Deflect overexposure. Sun protection is a necessity. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

How hot is June in Joanna?

In Joanna, in June, the average high-temperature is 88.5°F (31.4°C), and the average low-temperature is 67.5°F (19.7°C). In June, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is appraised at 102.2°F (39°C).

What is the average humidity in June in Joanna?

The average relative humidity in June in Joanna, South Carolina, is 71%.

How many days does it rain in June in Joanna?

In Joanna, South Carolina, in June, during 13.9 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

When it does not snow in Joanna?

In Joanna, snow does not fall in April through November.

When are the longest days in Joanna?

June has the longest days of the year, with an average of 14h and 24min of daylight.

How many hours of daylight does Joanna have in June?

In Joanna, the average day length in June is 14h and 25min.

When is the sunrise / sunset in June in Joanna?

In June, on the first day of the month, sunrise is at 6:15 am and sunset at 8:34 pm. On the last day of the month, in Joanna, sunrise is at 6:18 am and sunset at 8:43 pm EDT.

How long on average sun shines in June in Joanna?

In Joanna, the average sunshine duration in June is 10.6h.

What is the month with the highest UV index in Joanna?

With an average maximum UV index of 7, June is the month with the highest UV index in Joanna.

What is the UV index intensity in June in Joanna?

In June, the average daily maximum UV index in Joanna, South Carolina, is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability 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
Joanna, SC

Average temperature in June - Joanna, SC
  • Average high temperature in June: 88.5°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (51.3°F).

  • Average low temperature in June: 67.5°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (34.7°F).

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Average pressure in June
Joanna, SC

Average pressure in June - Joanna, SC
  • Average pressure in June: 29.98"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in June
Joanna, SC

Average wind speed in June - Joanna, SC
  • Average wind speed in June: 5.3mph

The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

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Average humidity in June
Joanna, SC

Average humidity in June - Joanna, SC
  • Average humidity in June: 71%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).

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Average rainfall in June
Joanna, SC

Average rainfall in June - Joanna, SC
  • Average rainfall in June: 2.36"

The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is September (1.69").

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Average rainfall days in June
Joanna, SC

Average rainfall days in June - Joanna, SC
  • Average rainfall days in June: 13.9 days

The month with the highest number of rainy days is August (16.5 days).
The months with the least rainy days are October and November (9 days).

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Average snowfall in June
Joanna, SC

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

The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in June
Joanna, SC

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

The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

Average daylight in June / Average sunshine in June - Joanna, 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 42min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

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Average sunshine days in June
Joanna, SC

Average sunshine days in June - Joanna, SC
  • Average sunshine days in June: 15.2 days

The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is July (12 days).

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Average UV index in June
Joanna, SC

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

The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is January (UV index 2).

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Average cloud cover in June
Joanna, SC

Average cloud cover in June - Joanna, SC
  • Average cloud cover in June: 31

The months with the most cloud cover are February and December (Cloud cover 44).
The months with the least cloud cover are June, July and October (Cloud cover 31).

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Average visibility in June
Joanna, SC

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

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

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Joanna, South Carolina, USA

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