June weather forecast
Greer, SC

June sees the introduction of summer in Greer, with its hot climate and extended daylight. A peak at 87.4°F (30.8°C) during the day, dipping to a warm 65.5°F (18.6°C) at night, exemplifies June's fervent yet bearable heat. Sunny skies with high UV index dominate most of June, complemented by occasional rainfall, providing slight relief from the heat. The warm temperatures paired with notable daylight hours make June ideal for outdoor activities. As the month progresses, the intensity of heat gradually heightens, hinting at the incoming peak summer period.

Temperature

The transition from May to June brings a subtle temperature rise, with average high-temperatures increasing from a warm 79.2°F (26.2°C) to a hot 87.4°F (30.8°C). Greer reports a significant contrast between daytime and nighttime temperatures, with an average low of 65.5°F (18.6°C) in June.

Heat index

June's heat index is estimated at a very hot 98.6°F (37°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

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

Rainfall

In June, the rain falls for 14.3 days. Throughout June, 2.32" (59mm) of precipitation is accumulated. In Greer, South Carolina, during the entire year, the rain falls for 150.2 days and collects up to 30.55" (776mm) of precipitation.

Snowfall

In Greer, snow does not fall in April through October.

Daylight

June has the longest days of the year in Greer, with an average of 14h and 30min of daylight.
On the first day of the month, sunrise is at 6:16 am and sunset at 8:37 pm. On the last day of June, sunrise is at 6:18 am and sunset at 8:46 pm EDT.

Sunshine

In Greer, the average sunshine in June is 10.9h.

UV index

The months with the highest UV index in Greer are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 6 during June translates into these guidelines:
Guard oneself from overexposure. Defence against sun injury is vital. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.