Weather on August 15 at Grand Canyon
Grand Canyon National Park
Based on 56 years of data from Flagstaff, AZ
Elevation Note: Grand Canyon sits at 7,000 ft. Expect temperatures 25°F cooler than the data shown below, which comes from Flagstaff, AZ at a lower elevation.
Planning Your Visit
August 15th in Grand Canyon National Park (via Flagstaff, AZ) typically brings pleasant summer weather, with average highs around 79°F and lows near 51°F — a 28°F daily swing. Over 56 years of records, the warmest August 15th was in 2020 (71°F average), while the coldest was 2017 (56°F) — a 15°F range across recorded history. Rain or other precipitation has occurred on about 50% of August 15th dates historically, with the wettest August 15th recording 0.85" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for August 15th in Grand Canyon? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 79°F | 45°F | 0" | 0" |
| 2025 | 75°F | 54°F | 0.2" | 0" |
| 2024 | 84°F | 47°F | 0" | 0" |
| 2023 | 75°F | 56°F | 0.16" | 0" |
| 2022 | 74°F | 57°F | 0.09" | 0" |
| 2021 | 82°F | 53°F | 0.11" | 0" |
| 2020 | 91°F | 52°F | 0" | 0" |
| 2019 | 87°F | 52°F | 0" | 0" |
| 2018 | 77°F | 54°F | 0" | 0" |
| 2017 | 68°F | 44°F | 0" | 0" |
| 2016 | 83°F | 49°F | 0.02" | 0" |
| 2015 | 86°F | 53°F | 0" | 0" |
| 2014 | 79°F | 53°F | 0.21" | 0" |
| 2013 | 79°F | 56°F | 0.03" | 0" |
| 2012 | 86°F | 54°F | 0" | 0" |
| 2011 | 80°F | 50°F | 0.01" | 0" |
| 2010 | 87°F | 52°F | 0.11" | 0" |
| 2009 | 79°F | 49°F | 0" | 0" |
| 2008 | 83°F | 52°F | 0.08" | 0" |
| 2007 | 79°F | 51°F | 0" | 0" |
| 2006 | 71°F | 54°F | 0.52" | 0" |
| 2005 | 73°F | 50°F | 0" | 0" |
| 2004 | 73°F | 54°F | 0.1" | 0" |
| 2003 | 71°F | 52°F | 0.31" | -- |
| 2002 | 87°F | 51°F | 0.08" | 0" |
| 2001 | 80°F | 48°F | 0" | -- |
| 2000 | 81°F | 50°F | 0.57" | 0" |
| 1999 | 75°F | 45°F | 0.01" | -- |
| 1998 | 80°F | 56°F | 0.32" | -- |
| 1997 | 78°F | 45°F | 0.13" | -- |
| 1996 | 84°F | 56°F | 0" | -- |
| 1995 | 79°F | 56°F | 0.01" | 0" |
| 1994 | 80°F | 50°F | 0.08" | 0" |
| 1993 | 79°F | 44°F | 0" | 0" |
| 1992 | 86°F | 53°F | 0.38" | 0" |
| 1991 | 84°F | 53°F | 0" | 0" |
| 1990 | 67°F | 51°F | 0.37" | 0" |
| 1989 | 82°F | 51°F | 0.02" | 0" |
| 1988 | 81°F | 54°F | 0" | 0" |
| 1987 | 72°F | 51°F | 0" | 0" |
| 1986 | 82°F | 50°F | 0" | 0" |
| 1985 | 82°F | 41°F | 0" | 0" |
| 1984 | 75°F | 54°F | 0" | 0" |
| 1983 | 79°F | 51°F | 0.04" | 0" |
| 1982 | 78°F | 52°F | 0.06" | 0" |
| 1981 | 75°F | 45°F | 0" | 0" |
| 1980 | 75°F | 59°F | 0" | 0" |
| 1979 | 71°F | 47°F | 0.61" | 0" |
| 1978 | 79°F | 39°F | 0" | 0" |
| 1977 | 77°F | 57°F | 0.6" | 0" |
| 1976 | 74°F | 47°F | 0" | 0" |
| 1975 | 79°F | 44°F | 0" | 0" |
| 1974 | 80°F | 50°F | 0" | 0" |
| 1973 | 82°F | 51°F | 0" | 0" |
| 1972 | 75°F | 44°F | 0" | 0" |
| 1971 | 78°F | 51°F | 0.85" | 0" |