Weather on July 20 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
July 20th in Great Smoky Mountains National Park (via Gatlinburg, TN) typically brings warm summer weather, with average highs around 85°F and lows near 63°F. Over 55 years of records, the warmest July 20th was in 1986 (82°F average), while the coldest was 2009 (63°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 56% of July 20th dates historically, with the wettest July 20th recording 11.25" of rain. The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
Planning for July 20th in Great Smoky Mountains? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 79°F | 68°F | 1.09" | 0" |
| 2024 | 77°F | 62°F | 0.56" | 0" |
| 2023 | 77°F | 63°F | 0.1" | 0" |
| 2022 | 81°F | 64°F | 0.15" | 0" |
| 2021 | 78°F | 64°F | 1.07" | 0" |
| 2020 | 86°F | 67°F | 0.08" | 0" |
| 2019 | 83°F | 67°F | 0.76" | 0" |
| 2018 | 84°F | 60°F | 4.47" | 0" |
| 2017 | 83°F | 65°F | 0" | 0" |
| 2016 | 88°F | 65°F | 0" | 0" |
| 2015 | 83°F | 67°F | 0.05" | 0" |
| 2014 | 71°F | 64°F | 1.42" | 0" |
| 2013 | 82°F | 65°F | 0.13" | 0" |
| 2012 | 89°F | 66°F | 1.02" | 0" |
| 2011 | 88°F | 69°F | 0.38" | 0" |
| 2010 | 86°F | 64°F | 1.78" | 0" |
| 2009 | 73°F | 54°F | 0" | 0" |
| 2008 | 89°F | 59°F | 0" | 0" |
| 2007 | 90°F | 65°F | 1.27" | 0" |
| 2006 | 91°F | 64°F | 0" | 0" |
| 2005 | 88°F | 67°F | 3.12" | 0" |
| 2004 | 76°F | 57°F | 0" | 0" |
| 2003 | 85°F | 62°F | 0" | 0" |
| 2002 | 85°F | 64°F | 1.68" | 0" |
| 2001 | 81°F | 66°F | 0.76" | 0" |
| 2000 | 89°F | 65°F | 1.6" | 0" |
| 1999 | 87°F | 61°F | 0" | 0" |
| 1998 | 91°F | 62°F | 0.94" | 0" |
| 1997 | 88°F | 62°F | 0" | 0" |
| 1996 | 88°F | 68°F | 0.08" | 0" |
| 1995 | 87°F | 58°F | 0" | 0" |
| 1994 | 82°F | 63°F | 0" | 0" |
| 1993 | 89°F | 67°F | 0.51" | 0" |
| 1992 | 85°F | 57°F | 0" | 0" |
| 1991 | 87°F | 65°F | 0.38" | 0" |
| 1990 | 82°F | 63°F | 0" | 0" |
| 1989 | 81°F | 59°F | 0.36" | 0" |
| 1988 | 90°F | 66°F | 0" | 0" |
| 1987 | 87°F | 61°F | 0" | -- |
| 1986 | 96°F | 68°F | 0" | 0" |
| 1985 | 88°F | 65°F | 0" | 0" |
| 1984 | 83°F | 56°F | 0" | 0" |
| 1983 | 88°F | 64°F | 0.13" | 0" |
| 1982 | 84°F | 65°F | 0" | 0" |
| 1981 | 89°F | 61°F | 0" | 0" |
| 1980 | 92°F | 68°F | 0" | 0" |
| 1979 | 81°F | 63°F | 0.13" | 0" |
| 1978 | 86°F | 59°F | 0" | 0" |
| 1977 | 89°F | 61°F | 0" | 0" |
| 1976 | 86°F | 55°F | 0" | 0" |
| 1975 | 89°F | 58°F | 0.36" | 0" |
| 1974 | 81°F | 63°F | 4.39" | 0" |
| 1973 | 81°F | 63°F | 0.53" | 0" |
| 1972 | 85°F | 61°F | 3.35" | 0" |
| 1971 | 78°F | 63°F | 11.25" | 0" |
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