Weather on December 31
Bellevue, WA
55 Years of Data
Avg High
45°F
Avg Low
35°F
Warmest
1980
51°F avg
Coldest
1978
20°F avg
About This Date
December 31st in Bellevue, WA typically brings chilly winter weather, with average highs around 45°F and lows near 35°F. Over 55 years of records, the warmest December 31st was in 1980 (51°F average), while the coldest was 1978 (20°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 51% of December 31st dates historically, with the wettest December 31st recording 3.51" of rain. The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
Planning for December 31st in Bellevue, WA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 45° | 32° | 38° | — | — |
| 2024 | 47° | 36° | 41° | — | — |
| 2023 | 52° | 37° | 44° | — | — |
| 2022 | 49° | 43° | 46° | 0.03" | — |
| 2021 | 34° | 22° | 28° | — | — |
| 2020 | 51° | 46° | 49° | 0.28" | — |
| 2019 | 54° | 46° | 50° | 0.13" | — |
| 2018 | 44° | 32° | 38° | — | — |
| 2017 | 43° | 34° | 38° | — | — |
| 2016 | 40° | 34° | 37° | 0.51" | — |
| 2015 | 44° | 29° | 37° | — | — |
| 2014 | 41° | 28° | 35° | — | — |
| 2013 | 46° | 38° | 42° | 0.03" | — |
| 2012 | 39° | 32° | 36° | — | — |
| 2011 | 44° | 36° | 40° | — | — |
| 2010 | 39° | 24° | 32° | — | — |
| 2009 | 46° | 39° | 43° | 0.91" | — |
| 2008 | 43° | 38° | 40° | 0.13" | — |
| 2007 | 44° | 34° | 39° | — | — |
| 2006 | 48° | 33° | 41° | — | — |
| 2005 | 48° | 44° | 46° | 0.53" | — |
| 2004 | 48° | 35° | 42° | — | — |
| 2003 | 39° | 32° | 36° | 0.08" | — |
| 2002 | 47° | 37° | 42° | 0.15" | — |
| 2001 | 47° | 37° | 42° | 0.46" | — |
| 2000 | 49° | 40° | 44° | 0.43" | — |
| 1999 | 45° | 37° | 41° | 0.69" | — |
| 1998 | 49° | 41° | 45° | 1.24" | — |
| 1997 | 49° | 37° | 43° | 0.41" | — |
| 1996 | 53° | 46° | 50° | 3.51" | — |
| 1995 | 51° | 45° | 48° | 0.15" | — |
| 1994 | 52° | 28° | 40° | — | — |
| 1993 | 49° | 44° | 46° | 1.02" | — |
| 1992 | 33° | 26° | 30° | — | — |
| 1991 | 51° | 36° | 43° | — | — |
| 1990 | 45° | 39° | 42° | — | — |
| 1989 | 49° | 41° | 45° | 0.25" | — |
| 1988 | 43° | 38° | 40° | 0.58" | — |
| 1987 | 45° | 33° | 39° | — | — |
| 1986 | 48° | 36° | 42° | 0.23" | — |
| 1985 | 43° | 35° | 39° | 0.15" | — |
| 1984 | 36° | 26° | 31° | — | — |
| 1983 | 51° | 38° | 44° | — | — |
| 1982 | 39° | 26° | 33° | — | — |
| 1981 | 39° | 30° | 35° | 0.08" | — |
| 1980warmest | 53° | 48° | 51° | 0.3" | — |
| 1979 | 55° | 41° | 48° | 0.18" | — |
| 1978coldest | 26° | 14° | 20° | — | — |
| 1977 | 42° | 29° | 35° | — | — |
| 1976 | 54° | 31° | 42° | — | — |
| 1975 | 46° | 36° | 41° | — | — |
| 1974 | 45° | 30° | 37° | — | — |
| 1973 | 43° | 34° | 38° | 0.23" | — |
| 1972 | 46° | 39° | 43° | 0.05" | — |
| 1971 | 45° | 36° | 40° | 0.1" | — |
55 years of data from SEATTLE UNIV OF WASHIN