June weather forecastSunnyhill, SC
June
Weather in June
The first month of the summer, June, is a hot month in Sunnyhill, South Carolina, with an average temperature ranging between max 87.4°F (30.8°C) and min 69.8°F (21°C).Temperature
June's arrival brings a modest temperature shift, moving from a moderately hot 79.9°F (26.6°C) in May to a hot 87.4°F (30.8°C). Throughout June in Sunnyhill, a steady low-temperature average of 69.8°F (21°C) is noted.Heat index
The heat index value during June is evaluated at a very hot 100.4°F (38°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.Take note of the fact that heat index values are based on shaded circumstances with light airflows. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
In June, the average relative humidity is 72%.Rainfall
In Sunnyhill, in June, during 11.5 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In Sunnyhill, during the entire year, the rain falls for 116.1 days and collects up to 11.42" (290mm) of precipitation.Snowfall
In Sunnyhill, snow does not fall in March through December.Daylight
With an average of 14h and 24min of daylight, June has the longest days of the year.On the first day of the month, sunrise is at 6:11 am and sunset at 8:29 pm. On the last day of June, sunrise is at 6:14 am and sunset at 8:38 pm EDT.
Sunshine
In Sunnyhill, the average sunshine in June is 10.8h.UV index
June and July, with an average maximum UV index of 7, are months with the highest UV index in Sunnyhill. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index, 7 during June, leads to the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Sunnyhill, SC
- Average high temperature in June: 87.4°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (52.2°F).
- Average low temperature in June: 69.8°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).
Average pressure in June
Sunnyhill, SC
- Average pressure in June: 29.97"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in June
Sunnyhill, SC
- Average wind speed in June: 6.2mph
The windiest months (with the highest average wind speed) are February and April (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in June
Sunnyhill, SC
- Average humidity in June: 72%
The month with the highest relative humidity is May (75%).
The months with the lowest relative humidity are January, March and November (70%).
Average rainfall in June
Sunnyhill, SC
- Average rainfall in June: 1.14"
The wettest month (with the highest rainfall) is August (1.42").
The driest month (with the least rainfall) is September (0.59").
Average rainfall days in June
Sunnyhill, SC
- Average rainfall days in June: 11.5 days
The month with the highest number of rainy days is July (13.8 days).
The month with the least rainy days is November (5.8 days).
Average snowfall in June
Sunnyhill, SC
- Average snowfall in June: 0"
The month with the highest snowfall is February (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in June
Sunnyhill, SC
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and December (0 days).
Average daylight in June /
Average sunshine in June
Sunnyhill, SC
- Average daylight in June: 14h and 24min
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 48min
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).
Average sunshine days in June
Sunnyhill, SC
- Average sunshine days in June: 15.6 days
The month with the most sunshine days is October (23.9 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in June
Sunnyhill, SC
- Average UV index in June: 7
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in June
Sunnyhill, SC
- Average cloud cover in June: 28
The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are June and October (Cloud cover 28).
Average visibility in June
Sunnyhill, 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).





