Weather on March 31 at Crater Lake
Crater Lake National Park
Based on 56 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
March 31st in Crater Lake National Park (via Medford, OR) typically brings mild spring weather, with average highs around 61°F and lows near 37°F. Over 56 years of records, the warmest March 31st was in 2018 (59°F average), while the coldest was 1999 (38°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 43% of March 31st dates historically, with the wettest March 31st recording 1.91" of rain. The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
Planning for March 31st in Crater Lake? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 64°F | 48°F | 0.03" | 0" |
| 2025 | 51°F | 37°F | 0.41" | 0" |
| 2024 | 61°F | 36°F | 0" | 0" |
| 2023 | 56°F | 38°F | 0" | 0" |
| 2022 | 62°F | 37°F | 0" | 0" |
| 2021 | 81°F | 34°F | 0" | 0" |
| 2020 | 52°F | 45°F | 0.15" | 0" |
| 2019 | 72°F | 36°F | 0" | 0" |
| 2018 | 73°F | 44°F | 0" | 0" |
| 2017 | 66°F | 34°F | 0" | 0" |
| 2016 | 75°F | 40°F | 0" | 0" |
| 2015 | 58°F | 40°F | 0.3" | 0" |
| 2014 | 56°F | 35°F | 0.2" | 0" |
| 2013 | 59°F | 52°F | 0.66" | 0" |
| 2012 | 58°F | 42°F | 0.81" | 0" |
| 2011 | 73°F | 41°F | 0" | 0" |
| 2010 | 52°F | 36°F | 0" | 0" |
| 2009 | 59°F | 34°F | 0" | 0" |
| 2008 | 53°F | 23°F | 0" | 0" |
| 2007 | 65°F | 50°F | 0" | 0" |
| 2006 | 56°F | 40°F | 0.79" | 0" |
| 2005 | 69°F | 33°F | 0" | -- |
| 2004 | 56°F | 37°F | 0" | -- |
| 2003 | 70°F | 46°F | 1.24" | -- |
| 2002 | 76°F | 34°F | 0" | -- |
| 2001 | 69°F | 39°F | 0" | -- |
| 2000 | 74°F | 35°F | 0" | -- |
| 1999 | 47°F | 30°F | 0.13" | 0" |
| 1998 | 52°F | 33°F | 1.12" | 0" |
| 1997 | 66°F | 29°F | -- | 0" |
| 1996 | 56°F | 41°F | 0.99" | 0" |
| 1995 | 70°F | 37°F | 0" | 0" |
| 1994 | 55°F | 34°F | 1.85" | 0" |
| 1993 | 59°F | 43°F | 0.03" | 0" |
| 1992 | 52°F | 45°F | 0.03" | 0" |
| 1991 | 75°F | 36°F | 0" | 0" |
| 1990 | 71°F | 33°F | 0" | 0" |
| 1989 | 56°F | 40°F | 0.64" | 0" |
| 1988 | 57°F | 29°F | 0" | 0" |
| 1987 | 74°F | 36°F | 0" | 0" |
| 1986 | 59°F | 31°F | 0" | 0" |
| 1985 | 60°F | 46°F | 0" | -- |
| 1984 | 61°F | 37°F | 1.91" | 0" |
| 1983 | 56°F | 40°F | 1.8" | 0" |
| 1982 | 45°F | 35°F | -- | 0" |
| 1981 | 60°F | 41°F | 0" | 0" |
| 1980 | 50°F | 31°F | 0.2" | 0" |
| 1979 | 54°F | 37°F | 0" | 0" |
| 1978 | 63°F | 41°F | 0.05" | 0" |
| 1977 | 57°F | 28°F | 0" | 0" |
| 1976 | 68°F | 33°F | 1.4" | 0" |
| 1975 | 55°F | 29°F | 0" | 0" |
| 1974 | 53°F | 30°F | 0.03" | 0" |
| 1973 | 51°F | 30°F | 0.18" | 0" |
| 1972 | 70°F | 32°F | 0" | 0" |
| 1971 | 56°F | 36°F | 0.03" | 0" |