Weather on March 21 at Great Smoky Mountains
Great Smoky Mountains National Park
Based on 55 years of data from Gatlinburg, TN
Elevation Note: Great Smoky Mountains sits at 4,900 ft. Expect temperatures 17°F cooler than the data shown below, which comes from Gatlinburg, TN at a lower elevation.
Planning Your Visit
March 21st in Great Smoky Mountains National Park (via Gatlinburg, TN) typically brings mild spring weather, with average highs around 62°F and lows near 36°F — a 26°F daily swing. Over 55 years of records, the warmest March 21st was in 2012 (68°F average), while the coldest was 1971 (28°F) — a 40°F range across recorded history. Precipitation has occurred on 47% of recorded March 21st dates, with snow falling 5% of the time (heaviest snowfall: 2.5"). The last decade has been 3.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.7°F cooler on this date compared to 20-30 years ago.
Planning for March 21st in Great Smoky Mountains? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 74°F | 36°F | 0" | 0" |
| 2025 | 52°F | 31°F | 0.53" | 0" |
| 2024 | 66°F | 36°F | 0" | 0" |
| 2023 | 48°F | 18°F | 0" | 0" |
| 2022 | 60°F | 32°F | 0" | 0" |
| 2021 | 57°F | 31°F | 0" | 0" |
| 2020 | 77°F | 55°F | 2.06" | 0" |
| 2019 | 60°F | 28°F | 0" | 0" |
| 2018 | 63°F | 31°F | 1.27" | 1" |
| 2017 | 58°F | 29°F | 0" | 0" |
| 2016 | 45°F | 30°F | 0.89" | 0" |
| 2015 | 56°F | 47°F | 0.25" | 0" |
| 2014 | 57°F | 29°F | 0" | 0" |
| 2013 | 53°F | 23°F | 0.13" | 0.1" |
| 2012 | 83°F | 53°F | 1.83" | 0" |
| 2011 | 74°F | 45°F | 0" | 0" |
| 2010 | 72°F | 32°F | 0" | 0" |
| 2009 | 56°F | 27°F | 0" | 0" |
| 2008 | 55°F | 29°F | 0" | 0" |
| 2007 | 69°F | 43°F | 0.05" | 0" |
| 2006 | 41°F | 36°F | 2.39" | 0" |
| 2005 | 63°F | 32°F | 0" | 0" |
| 2004 | 78°F | 36°F | 0.94" | 0" |
| 2003 | 72°F | 49°F | 0.23" | 0" |
| 2002 | 75°F | 50°F | 1.09" | 0" |
| 2001 | 44°F | 36°F | 1.47" | 0" |
| 2000 | 61°F | 44°F | 0" | 0" |
| 1999 | 73°F | 32°F | 0.25" | 0" |
| 1998 | 64°F | 34°F | 0.66" | 0" |
| 1997 | 63°F | 35°F | 0" | 0" |
| 1996 | 31°F | 26°F | 0.64" | 2.5" |
| 1995 | 77°F | 43°F | 1.73" | 0" |
| 1994 | 74°F | 34°F | 0.08" | 0" |
| 1993 | 45°F | 34°F | 0" | 0" |
| 1992 | 54°F | 27°F | 0" | 0" |
| 1991 | 70°F | 32°F | 0" | 0" |
| 1990 | 49°F | 21°F | 0" | 0" |
| 1989 | 65°F | 47°F | 1.47" | 0" |
| 1988 | 65°F | 38°F | 0" | 0" |
| 1987 | 68°F | 29°F | 0" | 0" |
| 1986 | 45°F | 25°F | 0" | 0" |
| 1984 | 68°F | 34°F | -- | 0" |
| 1983 | 65°F | 37°F | 3.33" | 0" |
| 1982 | 76°F | 56°F | 2.26" | 0" |
| 1981 | 42°F | 23°F | 0" | 0" |
| 1980 | 54°F | 42°F | 3.68" | 0" |
| 1979 | 75°F | 53°F | 0" | 0" |
| 1978 | 77°F | 35°F | 0" | 0" |
| 1977 | 63°F | 34°F | 0" | 0" |
| 1976 | 72°F | 56°F | 1.55" | 0" |
| 1975 | 70°F | 33°F | 0" | 0" |
| 1974 | 65°F | 50°F | 3.43" | 0" |
| 1973 | 62°F | 35°F | 1.45" | 0" |
| 1972 | 73°F | 32°F | 0" | 0" |
| 1971 | 37°F | 20°F | 0.13" | 0" |
March 21 at Nearby Parks
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