Weather on December 20 at Crater Lake
Crater Lake National Park
Based on 55 years of data from Medford, OR
Elevation Note: Crater Lake sits at 7,100 ft. Expect temperatures 25°F cooler than the data shown below, which comes from Medford, OR at a lower elevation.
Planning Your Visit
December 20th in Crater Lake National Park (via Medford, OR) typically brings chilly winter weather, with average highs around 46°F and lows near 32°F. Over 55 years of records, the warmest December 20th was in 2019 (54°F average), while the coldest was 1998 (19°F) — a 35°F range across recorded history. Precipitation has occurred on 53% of recorded December 20th dates, with snow falling 4% of the time. The last decade has been 3.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.5°F warmer on this date compared to 20-30 years ago.
Planning for December 20th in Crater Lake? 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 | 43°F | 34°F | 0.1" | 0" |
| 2024 | 49°F | 41°F | 0" | 0" |
| 2023 | 60°F | 39°F | 0" | 0" |
| 2022 | 37°F | 24°F | 0.43" | 0" |
| 2021 | 54°F | 35°F | 0" | 0" |
| 2020 | 56°F | 42°F | 0" | 0" |
| 2019 | 63°F | 45°F | 0" | 0" |
| 2018 | 45°F | 34°F | 1.37" | 0" |
| 2017 | 44°F | 33°F | 0" | 0" |
| 2016 | 43°F | 38°F | 0.1" | 0" |
| 2015 | 42°F | 35°F | 0.2" | 0" |
| 2014 | 49°F | 44°F | 0.51" | 0" |
| 2013 | 38°F | 26°F | 0.03" | 0" |
| 2012 | 45°F | 34°F | 1.37" | 0" |
| 2011 | 45°F | 24°F | 0" | 0" |
| 2010 | 47°F | 31°F | 0.15" | 0" |
| 2009 | 59°F | 43°F | 0.36" | 0" |
| 2008 | 38°F | 32°F | 0.28" | 0" |
| 2007 | 43°F | 31°F | 0.58" | 0" |
| 2006 | 42°F | 26°F | 0" | 0" |
| 2005 | 61°F | 45°F | 0.1" | 0" |
| 2004 | 50°F | 34°F | 0" | -- |
| 2003 | 46°F | 40°F | 0.13" | -- |
| 2002 | 49°F | 39°F | 0.33" | -- |
| 2001 | 50°F | 36°F | 1.02" | 0" |
| 2000 | 45°F | 35°F | 0.05" | -- |
| 1999 | 55°F | 28°F | 0" | 0" |
| 1998 | 29°F | 9°F | 0.08" | 1" |
| 1997 | 39°F | 27°F | 0.36" | 0" |
| 1996 | 44°F | 26°F | 0.69" | 0" |
| 1995 | 45°F | 31°F | 0" | 0" |
| 1994 | 58°F | 38°F | 0" | 0" |
| 1993 | 51°F | 19°F | 0" | 0" |
| 1992 | 41°F | 32°F | 0.64" | 0" |
| 1991 | 41°F | 23°F | 0" | 0" |
| 1990 | 33°F | 16°F | -- | 0.3" |
| 1989 | 33°F | 22°F | 0" | 0" |
| 1988 | 43°F | 35°F | 0.51" | 0" |
| 1987 | 42°F | 25°F | 0" | 0" |
| 1986 | 39°F | 33°F | 0" | 0" |
| 1985 | 44°F | 22°F | 0" | 0" |
| 1984 | 38°F | 18°F | 0" | -- |
| 1983 | 46°F | 31°F | 0.08" | 0" |
| 1982 | 46°F | 37°F | -- | 0" |
| 1981 | 49°F | 40°F | 0.86" | 0" |
| 1980 | 46°F | 34°F | 0.03" | 0" |
| 1979 | 58°F | 45°F | 0" | 0" |
| 1978 | 34°F | 16°F | 0" | 0" |
| 1977 | 54°F | 36°F | 0" | 0" |
| 1976 | 31°F | 20°F | 0" | 0" |
| 1975 | 36°F | 24°F | 0.1" | 0" |
| 1974 | 50°F | 37°F | 0.1" | 0" |
| 1973 | 58°F | 48°F | 0.15" | 0" |
| 1972 | 50°F | 38°F | 0.41" | 0" |
| 1971 | 33°F | 28°F | 0" | 0" |