Weather on November 20 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 20th in North Cascades National Park (via Seattle, WA) typically brings cool fall weather, with average highs around 51°F and lows near 39°F. Over 54 years of records, the warmest November 20th was in 2002 (55°F average), while the coldest was 1977 (30°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 54% of November 20th dates historically, with the wettest November 20th 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 November 20th 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 | 55°F | 39°F | 0" | -- |
| 2024 | 55°F | 41°F | 0.66" | -- |
| 2023 | 51°F | 34°F | 0" | -- |
| 2022 | 52°F | 26°F | 0" | -- |
| 2021 | 49°F | 38°F | 0.03" | -- |
| 2020 | 51°F | 43°F | 0.03" | -- |
| 2019 | 51°F | 40°F | 0" | -- |
| 2018 | 52°F | 33°F | 0" | -- |
| 2017 | 51°F | 38°F | 1.24" | -- |
| 2016 | 55°F | 46°F | 0.25" | -- |
| 2015 | 51°F | 35°F | 0" | -- |
| 2014 | 54°F | 44°F | 0.28" | -- |
| 2013 | 47°F | 36°F | 0" | -- |
| 2012 | 53°F | 41°F | 0.51" | -- |
| 2011 | 40°F | 28°F | 0" | -- |
| 2010 | 45°F | 36°F | 0.03" | -- |
| 2009 | 58°F | 44°F | 0.86" | -- |
| 2008 | 51°F | 41°F | 0.51" | -- |
| 2007 | 48°F | 38°F | 0.03" | -- |
| 2006 | 54°F | 43°F | 2.13" | -- |
| 2005 | 47°F | 42°F | 0" | -- |
| 2004 | 47°F | 32°F | 0" | -- |
| 2003 | 43°F | 34°F | 0.71" | -- |
| 2002 | 62°F | 48°F | 0.03" | -- |
| 2001 | 58°F | 49°F | 1.45" | -- |
| 2000 | 53°F | 32°F | 0" | -- |
| 1999 | 50°F | 41°F | 1.96" | -- |
| 1997 | 55°F | 47°F | 0.05" | 0" |
| 1996 | 39°F | 32°F | 0.15" | 0" |
| 1995 | 55°F | 38°F | 0" | 0" |
| 1994 | 46°F | 32°F | 0" | 0" |
| 1993 | 51°F | 41°F | 0" | 0" |
| 1992 | 48°F | 39°F | 0" | 0" |
| 1991 | 50°F | 42°F | 0" | 0" |
| 1990 | 46°F | 39°F | 0" | 0" |
| 1989 | 55°F | 49°F | 0.13" | 0" |
| 1988 | 52°F | 47°F | 0" | 0" |
| 1987 | 61°F | 44°F | 0" | 0" |
| 1986 | 58°F | 50°F | 2.67" | 0" |
| 1985 | 35°F | 25°F | 0.05" | 0" |
| 1984 | 50°F | 42°F | 0.03" | 0" |
| 1983 | 46°F | 43°F | 2.74" | 0" |
| 1982 | 47°F | 35°F | 0.94" | 0" |
| 1981 | 55°F | 45°F | 0.56" | 0" |
| 1980 | 54°F | 48°F | 0.66" | 0" |
| 1979 | 48°F | 34°F | 0" | 0" |
| 1978 | 40°F | 30°F | 0" | 0" |
| 1977 | 36°F | 25°F | 0" | 0" |
| 1976 | 54°F | 38°F | 0" | 0" |
| 1975 | 51°F | 36°F | 0.03" | 0" |
| 1974 | 56°F | 47°F | 2.54" | 0" |
| 1973 | 46°F | 41°F | 0.84" | 0" |
| 1972 | 57°F | 37°F | 0" | 0" |
| 1971 | 56°F | 51°F | 0" | 0" |