July weather forecast
Lancaster, SC

In July, Lancaster experiences its peak summer, with temperatures reaching their annual highest. The month also registers the maximum number of rainfall days, counterbalancing the intense heat. Despite high temperatures, wind speeds hit their lowest, adding to the overall warmth. An increase in humidity levels complements the hot weather and frequent showers. The temperature range extends from 71.2°F (21.8°C) to 90.3°F (32.4°C).

Temperature

July proves to be the warmest month, recording an average peak temperature of 90.3°F (32.4°C) and a minimum temperature of 71.2°F (21.8°C).

Heat index

Throughout July, the heat index is appraised at a blisteringly hot 107.6°F (42°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical 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.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

June, July and November, with an average relative humidity of 71%, are the least humid months in Lancaster.

Rainfall

In Lancaster, during July, the rain falls for 14.9 days and regularly aggregates up to 1.54" (39mm) of precipitation. Throughout the year, in Lancaster, South Carolina, there are 120.6 rainfall days, and 11.97" (304mm) of precipitation is accumulated.

Snowfall

March through December are months without snowfall in Lancaster.

Daylight

The average length of the day in July is 14h and 13min.
On the first day of July in Lancaster, South Carolina, sunrise is at 6:13 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 8:25 pm EDT.

Sunshine

July has the most sunshine of the year, with an average of 10.9h of sunshine.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In July, a daily UV index of 7 turns into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.