Weather on May 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
May 20th in Crater Lake National Park (via Medford, OR) typically brings pleasant spring weather, with average highs around 74°F and lows near 45°F — a 29°F daily swing. Over 55 years of records, the warmest May 20th was in 2023 (75°F average), while the coldest was 1971 (47°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 33% of May 20th dates historically, with the wettest May 20th recording 3.25" 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 May 20th in Crater Lake? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 69°F | 48°F | 0" | 0" |
| 2024 | 73°F | 41°F | 0" | 0" |
| 2023 | 89°F | 60°F | 0" | 0" |
| 2022 | 71°F | 34°F | 0" | 0" |
| 2021 | 58°F | 42°F | 0.13" | 0" |
| 2020 | 68°F | 51°F | 0" | 0" |
| 2019 | 68°F | 44°F | 0.05" | 0" |
| 2018 | 72°F | 54°F | 0" | 0" |
| 2017 | 84°F | 49°F | 0" | 0" |
| 2016 | 62°F | 47°F | 0.25" | 0" |
| 2015 | 72°F | 57°F | 0.03" | 0" |
| 2014 | 77°F | 49°F | 0" | 0" |
| 2013 | 84°F | 46°F | 0" | 0" |
| 2012 | 86°F | 49°F | 0" | 0" |
| 2011 | 76°F | 42°F | 0" | 0" |
| 2010 | 61°F | 42°F | 0" | 0" |
| 2009 | 77°F | 40°F | 0" | 0" |
| 2008 | 70°F | 48°F | 0.43" | 0" |
| 2007 | 65°F | 48°F | 0.03" | 0" |
| 2006 | 75°F | 54°F | 0.15" | 0" |
| 2005 | 65°F | 48°F | 0.25" | -- |
| 2004 | 76°F | 45°F | 0.1" | -- |
| 2003 | 78°F | 42°F | 0" | -- |
| 2002 | 74°F | 43°F | 0.25" | 0" |
| 2001 | 86°F | 49°F | 0" | -- |
| 2000 | 86°F | 47°F | 0" | -- |
| 1999 | 70°F | 51°F | 0" | 0" |
| 1998 | 60°F | 40°F | 2.11" | 0" |
| 1997 | 86°F | 41°F | 0" | 0" |
| 1996 | 62°F | 41°F | -- | 0" |
| 1995 | 80°F | 43°F | 0" | 0" |
| 1994 | 67°F | 50°F | 0.74" | 0" |
| 1993 | 78°F | 51°F | 1.37" | 0" |
| 1992 | 68°F | 46°F | 3.25" | 0" |
| 1991 | 58°F | 49°F | 0" | 0" |
| 1990 | 63°F | 44°F | 0.25" | 0" |
| 1989 | 72°F | 34°F | 0" | 0" |
| 1988 | 78°F | 37°F | 0" | 0" |
| 1987 | 66°F | 32°F | 0" | 0" |
| 1986 | 77°F | 52°F | 0.36" | 0" |
| 1985 | 77°F | 44°F | 0" | 0" |
| 1984 | 83°F | 51°F | 0" | 0" |
| 1983 | 87°F | 42°F | 0" | 0" |
| 1982 | 82°F | 38°F | 0" | 0" |
| 1981 | 66°F | 47°F | 0" | 0" |
| 1980 | 87°F | 42°F | 0" | 0" |
| 1979 | 89°F | 42°F | 0" | 0" |
| 1978 | 85°F | 46°F | 0" | 0" |
| 1977 | 78°F | 42°F | 0" | 0" |
| 1976 | 78°F | 30°F | 0" | 0" |
| 1975 | 60°F | 39°F | 0.08" | 0" |
| 1974 | 69°F | 41°F | 0" | 0" |
| 1973 | 71°F | 50°F | 0" | 0" |
| 1972 | 63°F | 47°F | 1.09" | 0" |
| 1971 | 63°F | 31°F | 0" | 0" |