June weather forecastDekalb, SC
June
Weather in June
The first month of the summer, June, is a hot month in Dekalb, South Carolina, with an average temperature fluctuating between 69.8°F (21°C) and 87.4°F (30.8°C).Temperature
The start of June brings a subtle shift in the average high-temperature, edging up from May's moderately hot 79.9°F (26.6°C) to a tropical 87.4°F (30.8°C). The average nighttime temperature lowers to a pleasant 69.8°F (21°C) throughout June.Heat index
For June, the heat index is computed to be a torrid 100.4°F (38°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.It is emphasized that the heat index's values are meant for shaded zones with mild winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly important for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
The average relative humidity in June is 72%.Rainfall
In Dekalb, in June, during 11.5 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In Dekalb, South Carolina, during the entire year, the rain falls for 116.1 days and collects up to 11.42" (290mm) of precipitation.Snowfall
In Dekalb, snow does not fall in March through December.Daylight
June has the longest days of the year, with an average of 14h and 24min of daylight.On the first day of June, sunrise is at 6:10 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 8:38 pm EDT.
Sunshine
In Dekalb, the average sunshine in June is 10.8h.UV index
The months with the highest UV index in Dekalb are June and July, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 7 during June translates into the following guidance:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Dekalb, 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
Dekalb, 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
Dekalb, 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
Dekalb, 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
Dekalb, 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
Dekalb, 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
Dekalb, 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
Dekalb, 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
Dekalb, 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
Dekalb, 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
Dekalb, 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
Dekalb, 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
Dekalb, 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).





