March weather forecast
Great Smoky Mountains National Park, TN

As Great Smoky Mountains National Park segues into March, a definable increase in temperatures discerns the arrival of spring. The conversation of seasons from the icy winter to the reviving spring holds an attractive prospect for those favouring nature's rebirth. Be sure to enjoy greener landscapes as the snowfall lowers to 16.8" (427mm) existing only as remnants of winter. Increasing daylight hours provide larger windows for outdoor exploration and activities. Come prepared for sporadic rainfall and chillier afternoons.

Temperature

With the onset of March, Great Smoky Mountains National Park experiences a subtle temperature shift, with the average high-temperature moving from a cold 39.9°F (4.4°C) in February to a chilly 46.9°F (8.3°C). Throughout the month of March, Great Smoky Mountains National Park reports a steady low-temperature average of 28°F (-2.2°C).

Rainfall

In Great Smoky Mountains National Park, during March, the rain falls for 11 days and regularly aggregates up to 6.22" (158mm) of precipitation. In Great Smoky Mountains National Park, during the entire year, the rain falls for 123 days and collects up to 72.13" (1832mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In March, in Great Smoky Mountains National Park, it is snowing for 5 days. Throughout March, 16.85" (428mm) of snow is accumulated. Throughout the year, in Great Smoky Mountains National Park, Tennessee, there are 27 snowfall days, and 81.5" (2070mm) of snow is accumulated.

Daylight

The average length of the day in March is 11h and 59min.
On the first day of the month, sunrise is at 7:02 am and sunset at 6:29 pm EST. On the last day of March, in Great Smoky Mountains National Park, sunrise is at 7:20 am and sunset at 7:55 pm EDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from EDT to EST.

Sunshine

The average sunshine in March in Great Smoky Mountains National Park is 7h.

UV index

In Great Smoky Mountains National Park, the average daily maximum UV index in March is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: A maximum daily UV index of 6 during March morphs into the following directions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.