Weather on September 22 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
September 22nd in Mount Rainier National Park (via Seattle, WA) typically brings pleasant fall weather, with average highs around 70°F and lows near 52°F. Over 54 years of records, the warmest September 22nd was in 1974 (70°F average), while the coldest was 1972 (51°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 26% of September 22nd dates historically, with the wettest September 22nd recording 2.74" 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 September 22nd in Mount Rainier? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 71°F | 52°F | 0" | -- |
| 2024 | 72°F | 52°F | 0" | -- |
| 2023 | 76°F | 48°F | 0" | -- |
| 2022 | 71°F | 55°F | 0" | -- |
| 2021 | 68°F | 55°F | 0" | -- |
| 2020 | 74°F | 60°F | 0" | -- |
| 2019 | 65°F | 59°F | 0.03" | -- |
| 2018 | 69°F | 55°F | 0.13" | -- |
| 2017 | 68°F | 51°F | 0" | -- |
| 2016 | 67°F | 47°F | 0" | 0" |
| 2015 | 68°F | 47°F | 0" | -- |
| 2014 | 74°F | 61°F | 0" | -- |
| 2013 | 63°F | 57°F | 0.99" | -- |
| 2012 | 67°F | 53°F | 0.05" | -- |
| 2011 | 76°F | 62°F | 0" | -- |
| 2010 | 69°F | 50°F | 0" | -- |
| 2009 | 88°F | 52°F | 0" | -- |
| 2008 | 64°F | 49°F | 0.03" | -- |
| 2007 | 63°F | 49°F | 0" | -- |
| 2006 | 64°F | 49°F | 0" | -- |
| 2005 | 63°F | 46°F | 0" | -- |
| 2004 | 59°F | 53°F | 0.38" | -- |
| 2003 | 77°F | 50°F | 0" | -- |
| 2002 | 74°F | 50°F | 0" | -- |
| 2001 | 77°F | 55°F | 0.03" | -- |
| 2000 | 65°F | 48°F | 0" | -- |
| 1999 | 81°F | 54°F | 0" | -- |
| 1997 | 84°F | 53°F | 0" | 0" |
| 1996 | 65°F | 47°F | 0" | 0" |
| 1995 | 81°F | 50°F | 0" | 0" |
| 1994 | 83°F | 54°F | 0" | 0" |
| 1993 | 69°F | 45°F | 0" | 0" |
| 1992 | 71°F | 55°F | 0" | 0" |
| 1991 | 65°F | 47°F | 0" | 0" |
| 1990 | 85°F | 56°F | 0" | 0" |
| 1989 | 81°F | 51°F | 0" | 0" |
| 1988 | 62°F | 47°F | 0" | 0" |
| 1987 | 77°F | 54°F | 0" | 0" |
| 1986 | 63°F | 51°F | 0" | 0" |
| 1985 | 64°F | 47°F | 0" | 0" |
| 1984 | 56°F | 46°F | 1.37" | 0" |
| 1983 | 75°F | 51°F | 0" | 0" |
| 1982 | 68°F | 56°F | 0" | 0" |
| 1981 | 63°F | 50°F | 0" | 0" |
| 1980 | 61°F | 51°F | 0.08" | 0" |
| 1979 | 67°F | 51°F | 0" | 0" |
| 1978 | 61°F | 54°F | 2.74" | 0" |
| 1977 | 62°F | 46°F | 0.13" | 0" |
| 1976 | 62°F | 60°F | 0.13" | 0" |
| 1975 | 82°F | 54°F | 0" | 0" |
| 1974 | 82°F | 57°F | 0" | 0" |
| 1973 | 59°F | 55°F | 0.64" | 0" |
| 1972 | 54°F | 48°F | 1.7" | 0" |
| 1971 | 76°F | 53°F | 0" | 0" |