Weather on December 31
Federal Way, WA
55 Years of Data
Avg High
45°F
Avg Low
33°F
Warmest
1995
51°F avg
Coldest
1978
19°F avg
About This Date
December 31st in Federal Way, WA typically brings chilly winter weather, with average highs around 45°F and lows near 33°F. Over 55 years of records, the warmest December 31st was in 1995 (51°F average), while the coldest was 1978 (19°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 53% of December 31st dates historically, with the wettest December 31st recording 2.79" of rain. The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
Planning for December 31st in Federal Way, WA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 38° | 32° | 35° | 0.05" | — |
| 2024 | 44° | 33° | 39° | 0.05" | — |
| 2023 | 49° | 39° | 44° | 0.03" | — |
| 2022 | 51° | 44° | 48° | 0.1" | — |
| 2021 | 32° | 26° | 29° | — | — |
| 2020 | 49° | 46° | 47° | — | — |
| 2019 | 53° | 31° | 42° | 0.76" | — |
| 2018 | 43° | 34° | 38° | — | — |
| 2017 | 53° | 33° | 43° | 0.03" | — |
| 2016 | 50° | 27° | 38° | — | — |
| 2015 | 46° | 25° | 35° | — | — |
| 2014 | 39° | 24° | 32° | — | — |
| 2013 | 45° | 40° | 42° | — | — |
| 2012 | 37° | 28° | 33° | — | — |
| 2011 | 49° | 30° | 39° | — | — |
| 2010 | 38° | 18° | 28° | — | — |
| 2009 | 49° | 33° | 41° | 0.51" | — |
| 2008 | 45° | 37° | 41° | 0.13" | — |
| 2007 | 44° | 37° | 41° | 0.03" | — |
| 2006 | 48° | 32° | 40° | — | — |
| 2005 | 48° | 42° | 45° | 1.27" | — |
| 2004 | 47° | 30° | 38° | — | — |
| 2003 | 37° | 31° | 34° | 0.76" | — |
| 2002 | 48° | 38° | 43° | 0.69" | — |
| 2001 | 48° | 31° | 39° | 0.46" | — |
| 2000 | 49° | 41° | 45° | 0.71" | — |
| 1999 | 47° | 36° | 41° | 0.71" | — |
| 1998 | 51° | 45° | 48° | 0.3" | — |
| 1997 | 49° | 34° | 41° | — | — |
| 1996 | 48° | 42° | 45° | 2.79" | — |
| 1995warmest | 53° | 48° | 51° | 0.05" | — |
| 1994 | 47° | 39° | 43° | — | — |
| 1993 | 49° | 43° | 46° | 0.69" | — |
| 1992 | 37° | 27° | 32° | — | — |
| 1991 | 50° | 33° | 42° | — | — |
| 1990 | 46° | 29° | 37° | 0.51" | — |
| 1989 | 49° | 39° | 44° | 0.51" | — |
| 1988 | 44° | 39° | 42° | 0.13" | — |
| 1987 | 44° | 24° | 34° | — | — |
| 1986 | 48° | 29° | 38° | — | — |
| 1985 | 44° | 34° | 39° | 0.23" | — |
| 1984 | 34° | 22° | 28° | — | — |
| 1983 | 51° | 41° | 46° | 0.23" | — |
| 1982 | 36° | 18° | 27° | — | — |
| 1981 | 40° | 28° | 34° | — | — |
| 1980 | 53° | 47° | 50° | 0.13" | — |
| 1979 | 56° | 39° | 47° | 0.08" | — |
| 1978coldest | 27° | 12° | 19° | — | — |
| 1977 | 43° | 21° | 32° | 0.41" | — |
| 1976 | 44° | 28° | 36° | 0.05" | — |
| 1975 | 43° | 32° | 37° | — | — |
| 1974 | 36° | 22° | 29° | — | — |
| 1973 | 43° | 36° | 39° | — | — |
| 1972 | 45° | 38° | 41° | — | — |
| 1971 | 45° | 34° | 39° | 0.05" | — |
55 years of data from KENT