Weather on November 18 at North Cascades
North Cascades National Park
Based on 54 years of data from Seattle, WA
Elevation Note: North Cascades sits at 4,200 ft. Expect temperatures 15°F cooler than the data shown below, which comes from Seattle, WA at a lower elevation.
Planning Your Visit
November 18th in North Cascades National Park (via Seattle, WA) typically brings cool fall weather, with average highs around 50°F and lows near 39°F. Over 54 years of records, the warmest November 18th was in 1980 (53°F average), while the coldest was 1977 (34°F) — a 19°F range across recorded history. Precipitation has occurred on 50% of recorded November 18th dates, with snow falling 2% of the time (heaviest snowfall: 3"). The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
Planning for November 18th in North Cascades? 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 |
|---|---|---|---|---|
| 2025 | 49°F | 39°F | 0" | -- |
| 2024 | 46°F | 40°F | 0.23" | -- |
| 2023 | 52°F | 32°F | 0.2" | -- |
| 2022 | 50°F | 26°F | 0" | -- |
| 2021 | 48°F | 41°F | 0.58" | -- |
| 2020 | 50°F | 43°F | 1.17" | -- |
| 2019 | 51°F | 48°F | 1.02" | 0" |
| 2018 | 53°F | 33°F | 0" | -- |
| 2017 | 54°F | 41°F | 0" | -- |
| 2016 | 55°F | 35°F | 0" | -- |
| 2015 | 51°F | 39°F | 0.13" | -- |
| 2014 | 49°F | 29°F | 0" | -- |
| 2013 | 55°F | 49°F | 2.03" | -- |
| 2012 | 51°F | 43°F | 1.6" | -- |
| 2011 | 41°F | 32°F | 0.03" | -- |
| 2010 | 47°F | 40°F | 0.36" | -- |
| 2009 | 50°F | 39°F | 0.46" | -- |
| 2008 | 52°F | 44°F | 0.05" | -- |
| 2007 | 46°F | 40°F | 0" | -- |
| 2006 | 54°F | 38°F | 0" | -- |
| 2005 | 50°F | 43°F | 0" | -- |
| 2004 | 51°F | 44°F | 0.2" | -- |
| 2003 | 58°F | 46°F | 4.9" | -- |
| 2002 | 55°F | 46°F | 0.33" | -- |
| 2001 | 59°F | 34°F | 0" | -- |
| 2000 | 47°F | 26°F | 0" | -- |
| 1999 | 52°F | 38°F | 0" | -- |
| 1997 | 58°F | 43°F | 0" | 0" |
| 1996 | 41°F | 35°F | 0" | 0" |
| 1995 | 55°F | 48°F | 0.46" | 0" |
| 1994 | 42°F | 30°F | 0" | 0" |
| 1993 | 48°F | 38°F | 0.05" | 0" |
| 1992 | 54°F | 44°F | 0.41" | 0" |
| 1991 | 52°F | 44°F | 0.23" | 0" |
| 1990 | 42°F | 35°F | 0" | 0" |
| 1989 | 52°F | 48°F | 0" | 0" |
| 1988 | 48°F | 36°F | 0" | 0" |
| 1987 | 52°F | 38°F | 0" | 0" |
| 1986 | 55°F | 46°F | 1.98" | 0" |
| 1985 | 41°F | 28°F | 0" | 0" |
| 1984 | 52°F | 45°F | 0.08" | 0" |
| 1983 | 55°F | 45°F | 0.05" | 0" |
| 1982 | 47°F | 41°F | 0.58" | 0" |
| 1981 | 56°F | 46°F | 0" | 0" |
| 1980 | 57°F | 49°F | 0" | 0" |
| 1979 | 49°F | 38°F | 0" | 0" |
| 1978 | 45°F | 34°F | 2.21" | 3" |
| 1977 | 40°F | 29°F | 0" | 0" |
| 1976 | 48°F | 40°F | 0" | 0" |
| 1975 | 46°F | 31°F | 0" | 0" |
| 1974 | 52°F | 45°F | 0.25" | 0" |
| 1973 | 41°F | 35°F | 0" | 0" |
| 1972 | 47°F | 37°F | 0.25" | 0" |
| 1971 | 46°F | 41°F | 0.18" | 0" |