Weather on August 9 at Mount Rainier
Mount Rainier National Park
Based on 54 years of data from Seattle, WA
Elevation Note: Mount Rainier sits at 5,400 ft. Expect temperatures 19°F cooler than the data shown below, which comes from Seattle, WA at a lower elevation.
Planning Your Visit
August 9th in Mount Rainier National Park (via Seattle, WA) typically brings pleasant summer weather, with average highs around 78°F and lows near 59°F. Over 54 years of records, the warmest August 9th was in 1981 (80°F average), while the coldest was 1975 (62°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 11% of August 9th dates historically, with the wettest August 9th recording 1.83" 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 9th in Mount Rainier? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 80°F | 60°F | 0" | -- |
| 2024 | 87°F | 65°F | 0" | -- |
| 2023 | 77°F | 62°F | 0" | -- |
| 2022 | 77°F | 60°F | 0" | -- |
| 2021 | 77°F | 57°F | 0" | -- |
| 2020 | 76°F | 55°F | 0" | -- |
| 2019 | 76°F | 62°F | 0" | -- |
| 2018 | 90°F | 62°F | 0" | -- |
| 2017 | 87°F | 63°F | 0" | -- |
| 2016 | 72°F | 60°F | 0" | -- |
| 2015 | 84°F | 60°F | 0" | -- |
| 2014 | 81°F | 61°F | 0" | -- |
| 2013 | 83°F | 61°F | 0" | -- |
| 2012 | 74°F | 59°F | 0" | -- |
| 2011 | 69°F | 56°F | 0" | -- |
| 2010 | 67°F | 59°F | 0" | -- |
| 2009 | 78°F | 61°F | 0" | -- |
| 2008 | 72°F | 57°F | 0.74" | -- |
| 2007 | 72°F | 54°F | 0" | -- |
| 2006 | 72°F | 61°F | 0" | -- |
| 2005 | 75°F | 57°F | 0" | -- |
| 2004 | 91°F | 65°F | 0" | -- |
| 2003 | 74°F | 61°F | 0.38" | -- |
| 2002 | 83°F | 57°F | 0" | -- |
| 2001 | 85°F | 63°F | 0" | -- |
| 2000 | 72°F | 58°F | 0" | -- |
| 1999 | 78°F | 60°F | 0" | -- |
| 1997 | 81°F | 58°F | 0" | 0" |
| 1996 | 83°F | 57°F | 0" | 0" |
| 1995 | 75°F | 52°F | 0" | 0" |
| 1994 | 79°F | 58°F | 0.15" | 0" |
| 1993 | 74°F | 60°F | 0" | 0" |
| 1992 | 75°F | 53°F | 0" | 0" |
| 1991 | 66°F | 59°F | 1.83" | 0" |
| 1990 | 80°F | 58°F | 0" | 0" |
| 1989 | 72°F | 58°F | 0" | 0" |
| 1988 | 69°F | 58°F | 0" | 0" |
| 1987 | 81°F | 60°F | 0" | 0" |
| 1986 | 89°F | 61°F | 0" | 0" |
| 1985 | 70°F | 56°F | 0.36" | 0" |
| 1984 | 80°F | 62°F | 0" | 0" |
| 1983 | 75°F | 59°F | 0" | 0" |
| 1982 | 66°F | 58°F | 0.05" | 0" |
| 1981 | 94°F | 67°F | 0" | 0" |
| 1980 | 80°F | 57°F | 0" | 0" |
| 1979 | 78°F | 56°F | 0" | 0" |
| 1978 | 84°F | 62°F | 0" | 0" |
| 1977 | 88°F | 60°F | 0" | 0" |
| 1976 | 70°F | 59°F | 0" | 0" |
| 1975 | 73°F | 50°F | 0" | 0" |
| 1974 | 82°F | 56°F | 0" | 0" |
| 1973 | 79°F | 58°F | 0" | 0" |
| 1972 | 83°F | 59°F | 0" | 0" |
| 1971 | 92°F | 61°F | 0" | 0" |