Weather on May 20 at Olympic
Olympic National Park
Based on 55 years of data from Seattle, WA
Elevation Note: Olympic sits at 1,500 ft. Expect temperatures 5°F cooler than the data shown below, which comes from Seattle, WA at a lower elevation.
Planning Your Visit
May 20th in Olympic National Park (via Seattle, WA) typically brings mild spring weather, with average highs around 65°F and lows near 50°F. Over 55 years of records, the warmest May 20th was in 1978 (67°F average), while the coldest was 1971 (51°F) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 31% of May 20th dates historically, with the wettest May 20th recording 1.42" of rain. The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
Planning for May 20th in Olympic? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 61°F | 49°F | 0" | -- |
| 2024 | 67°F | 47°F | 0" | -- |
| 2023 | 76°F | 57°F | 0" | -- |
| 2022 | 61°F | 42°F | 0" | -- |
| 2021 | 62°F | 46°F | 0" | -- |
| 2020 | 60°F | 52°F | 0" | -- |
| 2019 | 59°F | 52°F | 0" | -- |
| 2018 | 67°F | 55°F | 0" | -- |
| 2017 | 72°F | 56°F | 0" | -- |
| 2016 | 66°F | 51°F | 0" | -- |
| 2015 | 74°F | 54°F | 0" | -- |
| 2014 | 72°F | 54°F | 0" | -- |
| 2013 | 69°F | 51°F | 0" | -- |
| 2012 | 59°F | 54°F | 0.41" | -- |
| 2011 | 71°F | 45°F | 0" | -- |
| 2010 | 56°F | 46°F | 0.33" | -- |
| 2009 | 61°F | 47°F | 0" | -- |
| 2008 | 63°F | 49°F | 0.48" | -- |
| 2007 | 56°F | 46°F | 1.42" | -- |
| 2006 | 67°F | 53°F | 0.03" | -- |
| 2005 | 62°F | 50°F | 0.36" | -- |
| 2004 | 67°F | 54°F | 0" | -- |
| 2003 | 60°F | 50°F | 0.08" | -- |
| 2002 | 63°F | 51°F | 0.15" | -- |
| 2001 | 66°F | 44°F | 0" | -- |
| 2000 | 64°F | 55°F | 0" | -- |
| 1999 | 63°F | 45°F | 0" | -- |
| 1998 | 69°F | 51°F | 0" | 0" |
| 1997 | 64°F | 51°F | 0.25" | 0" |
| 1996 | 60°F | 46°F | 0" | 0" |
| 1995 | 76°F | 46°F | 0" | 0" |
| 1994 | 61°F | 52°F | 0.15" | 0" |
| 1993 | 73°F | 54°F | 0.36" | 0" |
| 1992 | 61°F | 48°F | 0" | 0" |
| 1991 | 64°F | 54°F | 0" | 0" |
| 1990 | 61°F | 49°F | 0.1" | 0" |
| 1989 | 63°F | 46°F | 0" | 0" |
| 1988 | 68°F | 46°F | 0" | 0" |
| 1987 | 69°F | 46°F | 0" | 0" |
| 1986 | 61°F | 50°F | 0.05" | 0" |
| 1985 | 61°F | 52°F | 0" | 0" |
| 1984 | 62°F | 48°F | 0" | 0" |
| 1983 | 72°F | 51°F | 0" | 0" |
| 1982 | 67°F | 48°F | 0" | 0" |
| 1981 | 59°F | 53°F | 0.03" | 0" |
| 1980 | 58°F | 51°F | 0.43" | 0" |
| 1979 | 74°F | 46°F | 0" | 0" |
| 1978 | 81°F | 53°F | 0" | 0" |
| 1977 | 70°F | 53°F | 0" | 0" |
| 1976 | 64°F | 50°F | 0" | 0" |
| 1975 | 68°F | 43°F | 0" | 0" |
| 1974 | 64°F | 47°F | 0.05" | 0" |
| 1973 | 62°F | 46°F | 0" | 0" |
| 1972 | 79°F | 51°F | 0" | 0" |
| 1971 | 58°F | 45°F | 0.58" | 0" |