June weather forecast
Lancaster, SC

Notably, the temperature in June leaps up significantly, heralding the true arrival of summer in Lancaster. An increase in rainfall keeps the summer heat manageable, despite frequent sunshine during longer daylight hours. Humidity sees a slight decrease, but the overall moisture content remains high. The wind speed decreases further, making for quite hot afternoons. The maximum temperature reaches a scorching 87.3°F (30.7°C) while the minimum remains at 68.2°F (20.1°C).

Temperature

With the onset of June, Lancaster's average high-temperature experiences a slight rise, moving from May's warm 79.9°F (26.6°C) to a hot 87.3°F (30.7°C). Throughout the nights in June, Lancaster experiences an average low-temperature of 68.2°F (20.1°C).

Heat index

June's mean heat index is appraised at a sweltering 98.6°F (37°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The months with the lowest humidity in Lancaster, South Carolina, are June, July and November, with an average relative humidity of 71%.

Rainfall

In Lancaster, South Carolina, in June, during 12.8 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. Throughout the year, there are 120.6 rainfall days, and 11.97" (304mm) of precipitation is accumulated.

Snowfall

March through December are months without snowfall.

Daylight

With an average of 14h and 24min of daylight, June has the longest days of the year in Lancaster, South Carolina.
On the first day of the month, sunrise is at 6:10 am and sunset at 8:31 pm. On the last day of June, in Lancaster, sunrise is at 6:13 am and sunset at 8:40 pm EDT.

Sunshine

The average sunshine in June in Lancaster is 10.8h.

UV index

The months with the highest UV index in Lancaster are June and July, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 in June converts into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. During bright days, sunglasses that offer UVA and UVB defense are recommended.