May weather forecast
Great Smoky Mountains National Park, TN

May at the Great Smoky Mountains National Park incorporates bountiful sunshine and longer days, embracing the arrival of summer vibes. The shift from Spring to Summer is most notable in the absence of snowfall that was a humble 1.1" (28mm) in April. With clear skies, the park promotes a vast array of outdoor activities, from strenuous hikes to leisurely walks. Increased daylight, coupled with the higher sun exposure, thickens the park's lush vegetation. Occasional showers may arrive, providing respite during warmer days.

Temperature

As Great Smoky Mountains National Park transitions into May, the average high-temperature is observed to slightly rise from a refreshing 57°F (13.9°C) in April to an enjoyable 64°F (17.8°C). The month of May records an average low-temperature of 45°F (7.2°C).

Rainfall

In Great Smoky Mountains National Park, Tennessee, in May, during 11 rainfall days, 6.06" (154mm) of precipitation is typically accumulated. In Great Smoky Mountains National Park, Tennessee, during the entire year, the rain falls for 123 days and collects up to 72.13" (1832mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. Throughout May, Great Smoky Mountains National Park aggregates 1.06" (27mm) of snow. Throughout the year, in Great Smoky Mountains National Park, 81.5" (2070mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 4min.
On the first day of the month, sunrise is at 6:41 am and sunset at 8:20 pm. On the last day of May, sunrise is at 6:19 am and sunset at 8:43 pm EDT.

Sunshine

May through July, with an average of 9h of sunshine, are months with the most sunshine.

UV index

In May, the average daily maximum UV index in Great Smoky Mountains National Park is 9. A UV Index value of 8 to 10 symbolizes a very high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: During May, 9 as the daily maximum UV index converts into the following advice:
Take the necessary steps to protect yourself; unprotected skin and eyes are vulnerable to damage. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.