Weather on August 18 at Zion
Zion National Park
Based on 55 years of data from Springdale, UT
Elevation Note: Zion sits at 4,000 ft. Expect temperatures 14°F cooler than the data shown below, which comes from Springdale, UT at a lower elevation.
Planning Your Visit
August 18th in Zion National Park (via Springdale, UT) typically brings hot summer weather, with average highs around 97°F and lows near 68°F — a 29°F daily swing. Over 55 years of records, the warmest August 18th was in 2020 (94°F average), while the coldest was 1978 (71°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 25% of August 18th dates historically, with the wettest August 18th recording 3.4" of rain. The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
Planning for August 18th in Zion? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 100°F | 73°F | -- | -- |
| 2024 | 100°F | 73°F | -- | 0" |
| 2023 | 96°F | 71°F | -- | 0" |
| 2022 | 94°F | 70°F | 0.03" | 0" |
| 2021 | 99°F | 72°F | 0" | 0" |
| 2020 | 112°F | 76°F | 0" | 0" |
| 2019 | 99°F | 68°F | 0" | 0" |
| 2018 | 97°F | 75°F | 0" | 0" |
| 2017 | 96°F | 69°F | 0" | 0" |
| 2016 | 99°F | 68°F | 0" | 0" |
| 2015 | 102°F | 72°F | 0" | 0" |
| 2014 | 102°F | 70°F | 0" | 0" |
| 2013 | 102°F | 72°F | 0" | 0" |
| 2012 | 99°F | 69°F | 1.02" | 0" |
| 2011 | 107°F | 74°F | 0" | -- |
| 2010 | 103°F | 74°F | 0" | 0" |
| 2009 | 100°F | 67°F | 0" | 0" |
| 2008 | 99°F | 66°F | 0.23" | 0" |
| 2007 | 98°F | 68°F | 0.13" | 0" |
| 2006 | 95°F | 65°F | 0" | 0" |
| 2005 | 93°F | 63°F | 0" | 0" |
| 2004 | 93°F | 62°F | 0.71" | 0" |
| 2003 | 103°F | 72°F | 0" | 0" |
| 2002 | 109°F | 69°F | 0" | 0" |
| 2001 | 105°F | 72°F | 0" | 0" |
| 2000 | 98°F | 73°F | 0" | 0" |
| 1999 | 97°F | 70°F | 0" | 0" |
| 1998 | 90°F | 69°F | 0" | 0" |
| 1997 | 93°F | 67°F | 0" | 0" |
| 1996 | 98°F | 66°F | 0" | 0" |
| 1995 | 96°F | 62°F | 0" | 0" |
| 1994 | 98°F | 66°F | 0" | 0" |
| 1993 | 98°F | 63°F | 0" | 0" |
| 1992 | 106°F | 73°F | 0" | 0" |
| 1991 | 99°F | 72°F | 0" | 0" |
| 1990 | 92°F | 63°F | 0" | 0" |
| 1989 | 85°F | 60°F | 3.4" | 0" |
| 1988 | 104°F | 71°F | 0" | 0" |
| 1987 | 101°F | 66°F | 0" | 0" |
| 1986 | 100°F | 70°F | 0" | 0" |
| 1985 | 96°F | 66°F | 0" | 0" |
| 1984 | 89°F | 64°F | 2.03" | 0" |
| 1983 | 79°F | 66°F | 3" | 0" |
| 1982 | 94°F | 66°F | 0.18" | 0" |
| 1981 | 95°F | 68°F | 0" | 0" |
| 1980 | 95°F | 63°F | 0" | 0" |
| 1979 | 81°F | 68°F | 0.53" | 0" |
| 1978 | 91°F | 52°F | 0" | 0" |
| 1977 | 90°F | 68°F | 0" | 0" |
| 1976 | 92°F | 55°F | 0.03" | 0" |
| 1975 | 94°F | 62°F | 0" | 0" |
| 1974 | 101°F | 68°F | 0" | 0" |
| 1973 | 97°F | 70°F | 0.08" | 0" |
| 1972 | 92°F | 67°F | 0.05" | 0" |
| 1971 | 98°F | 68°F | 0.05" | 0" |