Great Smoky Mountains National Park weather in March
March in Great Smoky Mountains National Park: cool, rainy, with clean air — a great time to visit.
#7 of 12 months in Great Smoky Mountains National Park · #268 of 604 destinations to visit in March · comfort 77/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Great Smoky Mountains National Park climate normals — March
| Daytime high | 14°C / 56°F | 🙂 cool |
|---|---|---|
| Nighttime low | 3°C / 38°F | |
| Feels like (high) | 11°C / 52°F | |
| Rainfall | 145 mm / 5.7 in | 🌧 rainy |
| Rainy days | 12 days | |
| Humidity | 67% | 💧 humid |
| Dew point | 1°C / 33°F | |
| Sunshine | 7.9 h/day | |
| Daylight | 12 h | |
| Wind | 14 km/h / 9 mph | |
| Snowfall | 2.5 cm / 1 in | |
| Air quality (US AQI) | 43 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Great Smoky Mountains National Park in March — FAQ
- Is March a good time to visit Great Smoky Mountains National Park?
- March in Great Smoky Mountains National Park: cool, rainy, with clean air — a great time to visit. It ranks #7 of 12 months for Great Smoky Mountains National Park on SeasonMap's comfort score (77/100).
- What is the weather like in Great Smoky Mountains National Park in March?
- In March, Great Smoky Mountains National Park averages a daily high of 13.6°C and a low of 3.1°C, with about 145.3 mm of rain over roughly 12.2 rainy days.
- What is the air quality in Great Smoky Mountains National Park in March?
- Great Smoky Mountains National Park has a mean US Air Quality Index of about 43 in March.
- Does it snow in Great Smoky Mountains National Park in March?
- Great Smoky Mountains National Park sees roughly 2.5 cm of snowfall in March.