Weather on January 18 at Mount Rainier
Mount Rainier National Park
Based on 56 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
January 18th in Mount Rainier National Park (via Seattle, WA) typically brings chilly winter weather, with average highs around 49°F and lows near 38°F. Over 56 years of records, the warmest January 18th was in 2005 (58°F average), while the coldest was 1984 (30°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 57% of January 18th dates historically, with the wettest January 18th recording 10.72" 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 January 18th in Mount Rainier? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 51°F | 30°F | 0" | -- |
| 2025 | 45°F | 29°F | 0" | -- |
| 2024 | 38°F | 34°F | 0.13" | -- |
| 2023 | 47°F | 38°F | 0.51" | -- |
| 2022 | 47°F | 45°F | 0" | -- |
| 2021 | 49°F | 38°F | 0" | -- |
| 2020 | 53°F | 39°F | 0.53" | -- |
| 2019 | 53°F | 45°F | 0.86" | -- |
| 2018 | 53°F | 37°F | 1.7" | -- |
| 2017 | 53°F | 44°F | 3.07" | -- |
| 2016 | 54°F | 40°F | 0.13" | -- |
| 2015 | 60°F | 49°F | 0.61" | -- |
| 2014 | 49°F | 33°F | 0" | -- |
| 2013 | 40°F | 33°F | 0" | -- |
| 2012 | 34°F | 28°F | 1.12" | -- |
| 2011 | 45°F | 41°F | 0.2" | -- |
| 2010 | 60°F | 48°F | 0" | -- |
| 2009 | 51°F | 26°F | 0" | -- |
| 2008 | 42°F | 34°F | 0" | -- |
| 2007 | 46°F | 35°F | 0.3" | -- |
| 2006 | 46°F | 40°F | 0.18" | -- |
| 2005 | 61°F | 55°F | 2.03" | -- |
| 2004 | 49°F | 44°F | 0.38" | -- |
| 2003 | 52°F | 32°F | 0" | -- |
| 2002 | 45°F | 37°F | 0.58" | -- |
| 2001 | 45°F | 40°F | 0.48" | -- |
| 2000 | 44°F | 29°F | 0" | -- |
| 1999 | 49°F | 44°F | 2.41" | -- |
| 1998 | 51°F | 45°F | 1.5" | 0" |
| 1997 | 48°F | 42°F | 1.57" | 0" |
| 1996 | 43°F | 32°F | 0.25" | 0" |
| 1995 | 52°F | 42°F | 0.41" | 0" |
| 1994 | 44°F | 36°F | 0" | 0" |
| 1993 | 50°F | 28°F | 0" | 0" |
| 1992 | 42°F | 33°F | 0" | 0" |
| 1991 | 53°F | 35°F | 0" | 0" |
| 1990 | 46°F | 32°F | 0" | 0" |
| 1989 | 49°F | 36°F | 0.23" | 0" |
| 1988 | 47°F | 33°F | 0" | 0" |
| 1987 | 42°F | 38°F | 0.1" | 0" |
| 1986 | 57°F | 43°F | 10.72" | 0" |
| 1985 | 52°F | 39°F | 0" | 0" |
| 1984 | 37°F | 23°F | 0" | 0" |
| 1983 | 53°F | 45°F | 0.58" | 0" |
| 1982 | 45°F | 35°F | 0" | 0" |
| 1981 | 56°F | 44°F | 0.43" | 0" |
| 1980 | 41°F | 29°F | 0" | 0" |
| 1979 | 45°F | 29°F | 0" | 0" |
| 1978 | 54°F | 40°F | 0.03" | 0" |
| 1977 | 57°F | 43°F | 0.76" | 0" |
| 1976 | 51°F | 41°F | 0" | 0" |
| 1975 | 54°F | 47°F | 0" | 0" |
| 1974 | 54°F | 40°F | 2.82" | 0" |
| 1973 | 53°F | 36°F | 0.36" | 0" |
| 1972 | 48°F | 35°F | 0.74" | 0" |
| 1971 | 56°F | 48°F | 0.28" | 0" |