June weather forecast
Smyrna, TN

June initiates the full-blown summer season in Smyrna, Tennessee. The town basks under the warmth of the summer sun, replete with blue skies, warmer temperatures, and relatively low rainfall. Exceptional heatwaves are infrequent, the area more so experiences a steady level of warmth throughout the daylight hours, with temperatures reaching up to 86.5°F (30.3°C). And as the gentle dusk falls, the weather mellows down to comfortable levels, perfect for a light stroll or an alfresco dinner. Warm and sun-drenched, June's weather is everything a summer enthusiast could hope for.

Temperature

The average high-temperature mildly increases in June, edging from a warm 78.3°F (25.7°C) in May to a hot 86.5°F (30.3°C). Throughout the month of June, the nighttime temperature dips to an average of 66°F (18.9°C).

Heat index

The heat index in June is evaluated at a fiery hot 98.6°F (37°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. 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 particularly relevant to children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

June, August and October, with an average relative humidity of 73%, are the least humid months.

Rainfall

In Smyrna, in June, it is raining for 15.1 days, with typically 2.48" (63mm) of accumulated precipitation. Throughout the year, there are 150.1 rainfall days, and 24.41" (620mm) of precipitation is accumulated.

Snowfall

In Smyrna, Tennessee, snow does not fall in May through October.

Daylight

The month with the longest days in Smyrna is June, with an average of 14h and 36min of daylight.
On the first day of June, sunrise is at 5:30 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:06 pm CDT.

Sunshine

June and July, with an average of 10.3h of sunshine, are months with the most sunshine.

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 hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index, 6 in June, converts into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.