Weather on December 15
Federal Way, WA
55 Years of Data
About This Date
December 15th in Federal Way, WA typically brings chilly winter weather, with average highs around 47°F and lows near 35°F. Over 55 years of records, the warmest December 15th was in 2025 (55°F average), while the coldest was 2008 (26°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 67% of December 15th dates historically, with the wettest December 15th recording 4.32" 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 December 15th in Federal Way, WA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 59° | 50° | 55° | 2.24" | — |
| 2024 | 49° | 38° | 43° | 0.2" | — |
| 2023 | 48° | 33° | 41° | — | — |
| 2022 | 43° | 27° | 35° | 0.03" | — |
| 2021 | 43° | 37° | 40° | 0.51" | — |
| 2020 | 47° | 40° | 43° | 0.25" | — |
| 2019 | 45° | 37° | 41° | — | — |
| 2018 | 49° | 38° | 43° | 0.08" | — |
| 2017 | 42° | 35° | 39° | 0.18" | — |
| 2016 | 37° | 32° | 35° | — | — |
| 2015 | 41° | 31° | 36° | — | — |
| 2014 | 55° | 43° | 49° | — | — |
| 2013 | 54° | 43° | 48° | 0.03" | — |
| 2012 | 39° | 30° | 35° | 0.51" | — |
| 2011 | 42° | 35° | 39° | 0.13" | — |
| 2010 | 49° | 38° | 43° | 0.33" | — |
| 2009 | 44° | 37° | 41° | 0.25" | — |
| 2008coldest | 30° | 21° | 26° | — | — |
| 2007 | 47° | 41° | 44° | 0.3" | — |
| 2006 | 56° | 38° | 47° | 0.71" | — |
| 2005 | 34° | 24° | 29° | — | — |
| 2004 | 53° | 44° | 49° | — | — |
| 2003 | 47° | 38° | 42° | — | — |
| 2002 | 52° | 44° | 48° | 0.94" | — |
| 2001 | 42° | 35° | 39° | 0.76" | — |
| 2000 | 46° | 27° | 36° | — | — |
| 1999 | 52° | 48° | 50° | 3.3" | — |
| 1998 | 50° | 36° | 43° | 0.1" | — |
| 1997 | 47° | 38° | 42° | 0.41" | — |
| 1996 | 46° | 33° | 40° | — | — |
| 1995 | 52° | 39° | 45° | 0.05" | — |
| 1994 | 46° | 37° | 42° | 0.48" | — |
| 1993 | 46° | 40° | 43° | — | — |
| 1992 | 43° | 29° | 36° | — | — |
| 1991 | 39° | 25° | 32° | — | — |
| 1990 | 44° | 36° | 40° | 0.58" | — |
| 1989 | 41° | 29° | 35° | — | — |
| 1988 | 43° | 25° | 34° | 0.03" | — |
| 1987 | 38° | 26° | 32° | 0.05" | — |
| 1986 | 52° | 35° | 43° | 0.03" | — |
| 1985 | 47° | 31° | 39° | — | — |
| 1984 | 43° | 25° | 34° | — | — |
| 1983 | 46° | 34° | 40° | 0.05" | — |
| 1982 | 51° | 39° | 45° | 0.69" | — |
| 1981 | 50° | 39° | 45° | 1.98" | — |
| 1980 | 61° | 45° | 53° | 0.05" | — |
| 1979 | 52° | 32° | 42° | 4.32" | — |
| 1978 | 46° | 31° | 38° | — | — |
| 1977 | 54° | 42° | 48° | 1.5" | — |
| 1976 | 60° | 41° | 51° | 0.13" | — |
| 1975 | 46° | 41° | 44° | 0.33" | — |
| 1974 | 51° | 39° | 45° | 0.48" | — |
| 1973 | 49° | 42° | 45° | 2.79" | — |
| 1972 | 39° | 21° | 30° | 0.13" | — |
| 1971 | 43° | 34° | 38° | 0.2" | — |