June weather forecast
Sun Valley, TN

The first month of the summer, June, is still a warm month in Sun Valley, Tennessee, with an average temperature ranging between min 62.4°F (16.9°C) and max 84.7°F (29.3°C).

Temperature

A slight uplift of average high-temperatures is noted in June, with temperatures adjusting from a moderately hot 76.6°F (24.8°C) in May to a still warm 84.7°F (29.3°C). Throughout June, Sun Valley acknowledges a distinct difference between its daytime highs and the steady low average of 62.4°F (16.9°C).

Heat index

The heat index value for June is estimated at a sweltering 95°F (35°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In Sun Valley, Tennessee, the average relative humidity in June is 77%.

Rainfall

In Sun Valley, Tennessee, in June, during 16.1 rainfall days, 3.39" (86mm) of precipitation is typically accumulated. In Sun Valley, during the entire year, the rain falls for 173.9 days and collects up to 38.31" (973mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

June has the longest days of the year in Sun Valley, with an average of 14h and 36min of daylight.
On the first day of the month, sunrise is at 5:25 am and sunset at 7:54 pm. On the last day of June, sunrise is at 5:28 am and sunset at 8:03 pm CDT.

Sunshine

The month with the most sunshine is June, with an average of 10.6h of sunshine.

UV index

The months with the highest UV index 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 unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 6 during June morphs into the following directions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.