June weather forecast
Fort Mill, SC

Marking Fort Mill’s leap into summer, June introduces some of the year’s warmest daytime temperatures. Temperatures surely crest in June with an average high of 87.4°F (30.8°C), making it the third warmest month of the year. Despite increased humidity, residents find solace in the extended 14.5 hours of daylight, ideal for outdoor activities. It’s the month when direct sunlight and length of day reach a near-peak level. However, an average of only 13.5 rainy days ensures plenty of sunny afternoons to savor.

Temperature

A gentle upsurge in temperatures occurs in Fort Mill as May gives way to June, with average highs shifting from a moderately hot 79.7°F (26.5°C) to a hot 87.4°F (30.8°C). Fort Mill records an average low-temperature of 67.6°F (19.8°C) throughout the month of June.

Heat index

June's average heat index is appraised at a very hot 98.6°F (37°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

In June, the average relative humidity in Fort Mill is 70%.

Rainfall

In June, the rain falls for 13.5 days. Throughout June, 2.2" (56mm) of precipitation is accumulated. Throughout the year, there are 146.1 rainfall days, and 28.94" (735mm) of precipitation is accumulated.

Snowfall

In Fort Mill, snow does not fall in April through November.

Daylight

The month with the longest days is June, with an average of 14h and 30min of daylight.
On the first day of June in Fort Mill, sunrise is at 6:10 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 8:41 pm EDT.

Sunshine

In Fort Mill, the average sunshine in June is 10.5h.

UV index

The average daily maximum UV index in June in Fort Mill is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index, 6 in June, converts into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.