June weather forecast
Chattanooga, TN

June highlights the transition into Chattanooga’s summer, with noticeably longer daylight hours and warmer temperatures. In addition to the warmer weather, the sunny conditions, with an extended 14.5 hours of daylight, make June one of the most favored months for outdoor activities. June serves as a gateway to the hottest weather conditions experienced in the city. However, the humidity rate slightly dips this month, providing a slight relief.

Temperature

June sees a marginal temperature increase, moving from a warm 78.1°F (25.6°C) in May to a still moderately hot 85.6°F (29.8°C). June in Chattanooga, Tennessee, presents a pronounced difference from daytime highs, with a consistent average low-temperature of 64°F (17.8°C).

Heat index

June's mean heat index is computed to be a fiery hot 96.8°F (36°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
The metrics for the heat index are tailored for both shady environments and light winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values remain especially vital for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

June through August, October and November, with an average relative humidity of 75%, are the least humid months.

Rainfall

In Chattanooga, during June, the rain falls for 17.8 days and regularly aggregates up to 2.72" (69mm) of precipitation. Throughout the year, in Chattanooga, there are 174.4 rainfall days, and 41.14" (1045mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The month with the longest days is June, with an average of 14h and 30min of daylight.
On the first day of June in Chattanooga, sunrise is at 6:28 am and sunset at 8:50 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 8:59 pm EDT.

Sunshine

June has the most sunshine of the year, with an average of 10.3h of sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 in June interprets into the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Stay sun-safe with clothing that is both closely woven and worn loosely.