June weather forecast
Columbia, TN

June in Columbia, Tennessee, sees the intensification of the summer season. The weather changes pace, and there is now a significant increase in the heat. Residents prepare for high temperatures that reach up to 85.6°F (29.8°C) during peak afternoons. The daylight hours bask in a prolonged span, setting up a great stage for various outdoor activities such as festivals and carnivals. Compared to May, June is substantially hotter and seen as the onset of the true Tennessee summer.

Temperature

The shift from May to June sees a slight increase in the average high-temperature, transitioning from 77.5°F (25.3°C) to a still moderately hot 85.6°F (29.8°C). Throughout the month of June, the nighttime temperature dips to an average of 65.5°F (18.6°C).

Heat index

June's heat index is evaluated at a very hot 96.8°F (36°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In June, the average relative humidity is 76%.

Rainfall

In Columbia, in June, it is raining for 16.8 days, with typically 3.23" (82mm) of accumulated precipitation. Throughout the year, there are 172.4 rainfall days, and 38.43" (976mm) 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 the month, sunrise is at 5:33 am and sunset at 7:58 pm. On the last day of June, in Columbia, Tennessee, sunrise is at 5:36 am and sunset at 8:07 pm CDT.

Sunshine

June has the most sunshine of the year, with an average of 10.3h 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 estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In June, the maximum UV index of 6 translates into these guidelines:
Elude overexposure. Fair-skinned people could get burnt 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. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.