June weather forecast
Durham, NC

As summer officially arrives, June sees a considerable shift in climate in Durham. Rainfall lessens marginally compared to May, dropping to 2.8" (71mm), but the temperature rises markedly, entering summer territory. Extended sunshine days, longer daylight hours, and a reduction in winds contribute to a warm climate, ideal for summertime activities. The climate shift from spring to summer brings a significant change in weather patterns, promoting outdoor recreation and maximum enjoyment of nature.

Temperature

Durham's transition into June is noticed by a slight rise in the average high-temperature, advancing from a warm 78.6°F (25.9°C) in May to a tropical 86.5°F (30.3°C). During June nights, Durham witnesses a consistent average temperature of 66.4°F (19.1°C).

Heat index

The heat index value during June is calculated to be a sweltering 96.8°F (36°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Durham, the average relative humidity in June is 72%.

Rainfall

In June, the rain falls for 14 days. Throughout June, 2.8" (71mm) of precipitation is accumulated. In Durham, during the entire year, the rain falls for 150.7 days and collects up to 29.41" (747mm) of precipitation.

Snowfall

In Durham, snow does not fall in April through November.

Daylight

June has the longest days of the year in Durham, with an average of 14h and 36min of daylight.
On the first day of June, sunrise is at 5:59 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:36 pm EDT.

Sunshine

In June, the average sunshine is 10.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 in June interprets into the following recommendations:
Fend off overexposure. Sun protection is vital. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.