Weather on September 17 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
September 17th in Great Smoky Mountains National Park (via Gatlinburg, TN) typically brings pleasant fall weather, with average highs around 78°F and lows near 56°F. Over 55 years of records, the warmest September 17th was in 1991 (76°F average), while the coldest was 1984 (55°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 38% of September 17th dates historically, with the wettest September 17th recording 6.6" of rain. The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
Planning for September 17th 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 |
|---|---|---|---|---|
| 2025 | 77°F | 56°F | 1.91" | 0" |
| 2024 | 80°F | 55°F | 1.07" | 0" |
| 2023 | 76°F | 59°F | 0.13" | 0" |
| 2022 | 75°F | 53°F | 0" | 0" |
| 2021 | 77°F | 62°F | 0" | 0" |
| 2020 | 75°F | 60°F | 0.53" | 0" |
| 2019 | 86°F | 54°F | 0" | 0" |
| 2018 | 69°F | 67°F | 3.48" | 0" |
| 2017 | 79°F | 55°F | 0" | 0" |
| 2016 | 87°F | 65°F | 0" | 0" |
| 2015 | 75°F | 48°F | 0" | 0" |
| 2014 | 76°F | 62°F | 0.05" | 0" |
| 2013 | 75°F | 55°F | 0" | 0" |
| 2012 | 76°F | 60°F | 0" | 0" |
| 2011 | 64°F | 53°F | 0" | 0" |
| 2010 | 84°F | 65°F | 0.89" | 0" |
| 2009 | 72°F | 65°F | 1.42" | 0" |
| 2008 | 67°F | 55°F | 0" | 0" |
| 2007 | 76°F | 45°F | 0" | 0" |
| 2006 | 81°F | 52°F | 0" | 0" |
| 2005 | 81°F | 63°F | 1.78" | 0" |
| 2004 | 71°F | 65°F | 6.6" | 0" |
| 2003 | 77°F | 50°F | 0" | 0" |
| 2002 | 82°F | 63°F | 0.03" | 0" |
| 2001 | 82°F | 45°F | 0" | 0" |
| 2000 | 71°F | 39°F | 0" | 0" |
| 1999 | 77°F | 41°F | 0" | 0" |
| 1998 | 89°F | 62°F | 0" | 0" |
| 1997 | 85°F | 53°F | 0" | 0" |
| 1996 | 74°F | 64°F | 2.95" | 0" |
| 1995 | 71°F | 64°F | 0.51" | 0" |
| 1994 | 84°F | 55°F | 0.66" | 0" |
| 1993 | 74°F | 64°F | 2.54" | 0" |
| 1992 | 79°F | 51°F | 0" | 0" |
| 1991 | 88°F | 64°F | 0" | 0" |
| 1990 | 78°F | 47°F | 0" | 0" |
| 1989 | 75°F | 56°F | 0" | 0" |
| 1988 | 77°F | 63°F | 0.81" | 0" |
| 1987 | 80°F | 61°F | 0" | -- |
| 1986 | 78°F | 54°F | 0.05" | 0" |
| 1985 | 76°F | 44°F | 0" | 0" |
| 1984 | 70°F | 40°F | 0" | 0" |
| 1983 | 86°F | 62°F | 0" | 0" |
| 1982 | 81°F | 55°F | 0" | 0" |
| 1981 | 75°F | 56°F | 0" | 0" |
| 1980 | 88°F | 58°F | 0" | 0" |
| 1979 | 76°F | 52°F | 1.45" | 0" |
| 1978 | 82°F | 52°F | 0" | 0" |
| 1977 | 76°F | 63°F | 1.65" | 0" |
| 1976 | 76°F | 50°F | 0" | 0" |
| 1975 | 71°F | 50°F | 0.03" | 0" |
| 1974 | 76°F | 49°F | 0" | 0" |
| 1973 | 80°F | 54°F | 0" | 0" |
| 1972 | 84°F | 62°F | 0" | 0" |
| 1971 | 71°F | 60°F | 1.91" | 0" |
September 17 at Nearby Parks
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