Weather on May 20
Federal Way, WA
55 Years of Data
Avg High
67°F
Avg Low
47°F
Warmest
1992
68°F avg
Coldest
1971
50°F avg
About This Date
May 20th in Federal Way, WA typically brings mild spring weather, with average highs around 67°F and lows near 47°F. Over 55 years of records, the warmest May 20th was in 1992 (68°F average), while the coldest was 1971 (50°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 40% of May 20th dates historically, with the wettest May 20th recording 1.27" 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 Federal Way, WA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 59° | 48° | 54° | 0.03" | — |
| 2024 | 67° | 44° | 55° | — | — |
| 2023 | 77° | 56° | 66° | — | — |
| 2022 | 58° | 42° | 50° | — | — |
| 2021 | 65° | 45° | 55° | 0.25" | — |
| 2020 | 63° | 50° | 56° | — | — |
| 2019 | 66° | 51° | 59° | 0.1" | — |
| 2018 | 67° | 55° | 61° | — | — |
| 2017 | 72° | 54° | 63° | — | — |
| 2016 | 65° | 50° | 57° | 0.05" | — |
| 2015 | 77° | 54° | 65° | — | — |
| 2014 | 72° | 50° | 61° | — | — |
| 2013 | 64° | 49° | 56° | — | — |
| 2012 | 66° | 54° | 60° | 0.38" | — |
| 2011 | 73° | 44° | 59° | — | — |
| 2010 | 56° | 44° | 50° | 0.33" | — |
| 2009 | 62° | 46° | 54° | — | — |
| 2008 | 72° | 51° | 61° | 1.27" | — |
| 2007 | 70° | 45° | 57° | 0.69" | — |
| 2006 | 67° | 54° | 60° | 0.1" | — |
| 2005 | 61° | 48° | 54° | 0.51" | — |
| 2004 | 66° | 55° | 61° | 0.05" | — |
| 2003 | 68° | 48° | 58° | 0.2" | — |
| 2002 | 64° | 49° | 56° | 0.46" | — |
| 2001 | 66° | 45° | 55° | — | — |
| 2000 | 65° | 53° | 59° | — | — |
| 1999 | 63° | 44° | 53° | — | — |
| 1998 | 68° | 53° | 61° | — | — |
| 1997 | 75° | 48° | 62° | 0.33" | — |
| 1996 | 63° | 44° | 53° | — | — |
| 1995 | 74° | 45° | 59° | — | — |
| 1994 | 61° | 53° | 57° | 0.05" | — |
| 1993 | 72° | 49° | 60° | 0.97" | — |
| 1992warmest | 82° | 53° | 68° | — | — |
| 1991 | 63° | 53° | 58° | — | — |
| 1990 | 65° | 48° | 56° | — | — |
| 1989 | 66° | 40° | 53° | 0.03" | — |
| 1988 | 68° | 41° | 55° | — | — |
| 1987 | 68° | 38° | 53° | — | — |
| 1986 | 64° | 47° | 55° | 1.07" | — |
| 1985 | 68° | 52° | 60° | — | — |
| 1984 | 61° | 45° | 53° | 0.28" | — |
| 1983 | 77° | 43° | 60° | — | — |
| 1982 | 71° | 43° | 57° | — | — |
| 1981 | 60° | 45° | 52° | 0.13" | — |
| 1980 | 65° | 48° | 56° | 0.03" | — |
| 1979 | 74° | 39° | 56° | — | — |
| 1978 | 85° | 45° | 65° | — | — |
| 1977 | 72° | 48° | 60° | — | — |
| 1976 | 64° | 46° | 55° | — | — |
| 1975 | 68° | 37° | 53° | — | — |
| 1974 | 65° | 46° | 55° | — | — |
| 1973 | 63° | 40° | 51° | — | — |
| 1972 | 81° | 46° | 63° | — | — |
| 1971coldest | 57° | 42° | 50° | 0.1" | — |
55 years of data from KENT