Weather on December 21
Bellevue, WA
55 Years of Data
Avg High
46°F
Avg Low
37°F
Warmest
1972
52°F avg
Coldest
1990
15°F avg
About This Date
December 21st in Bellevue, WA typically brings chilly winter weather, with average highs around 46°F and lows near 37°F. Over 55 years of records, the warmest December 21st was in 1972 (52°F average), while the coldest was 1990 (15°F) — a 37°F range across recorded history. Precipitation has occurred on 60% of recorded December 21st dates, with snow falling 4% of the time (heaviest snowfall: 2.5"). 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 21st 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 | 50° | 44° | 47° | 0.33" | — |
| 2024 | 54° | 44° | 49° | 0.91" | — |
| 2023 | 48° | 40° | 44° | — | — |
| 2022 | 30° | 21° | 26° | — | — |
| 2021 | 43° | 35° | 39° | 0.43" | — |
| 2020 | 56° | 33° | 44° | 5.56" | 0.2" |
| 2019 | 50° | 42° | 46° | 2.26" | — |
| 2018 | 43° | 38° | 40° | 0.05" | — |
| 2017 | 40° | 28° | 34° | 0.1" | — |
| 2016 | 47° | 34° | 40° | — | — |
| 2015 | 42° | 38° | 40° | 1.4" | — |
| 2014 | 55° | 49° | 52° | — | — |
| 2013 | 44° | 40° | 42° | 0.48" | — |
| 2012 | 47° | 32° | 39° | 0.15" | — |
| 2011 | 47° | 34° | 40° | — | — |
| 2010 | 53° | 40° | 46° | 0.18" | — |
| 2009 | 50° | 40° | 45° | 1.3" | — |
| 2008 | 33° | 27° | 30° | 0.89" | 2.5" |
| 2007 | 42° | 32° | 37° | — | — |
| 2006 | 52° | 39° | 45° | 0.74" | — |
| 2005 | 51° | 44° | 48° | 1.7" | — |
| 2004 | 43° | 37° | 40° | 0.18" | — |
| 2003 | 50° | 41° | 46° | 0.03" | — |
| 2002 | 45° | 41° | 43° | — | — |
| 2001 | 45° | 33° | 39° | — | — |
| 2000 | 49° | 35° | 42° | 0.28" | — |
| 1999 | 47° | 37° | 42° | — | — |
| 1998 | 27° | 21° | 24° | — | — |
| 1997 | 44° | 34° | 39° | 0.33" | — |
| 1996 | 43° | 37° | 40° | 0.61" | — |
| 1995 | 52° | 35° | 43° | — | — |
| 1994 | 51° | 37° | 44° | — | — |
| 1993 | 44° | 35° | 40° | — | — |
| 1992 | 44° | 42° | 43° | 0.15" | — |
| 1991 | 45° | 41° | 43° | 0.03" | — |
| 1990coldest | 20° | 10° | 15° | — | — |
| 1989 | 49° | 41° | 45° | — | — |
| 1988 | 42° | 39° | 41° | — | — |
| 1987 | 45° | 40° | 42° | 0.13" | — |
| 1986 | 48° | 42° | 45° | 0.69" | — |
| 1985 | 43° | 33° | 38° | — | — |
| 1984 | 46° | 36° | 41° | 0.15" | — |
| 1983 | 26° | 16° | 21° | — | — |
| 1982 | 50° | 40° | 45° | 0.46" | — |
| 1981 | 45° | 36° | 40° | 0.08" | — |
| 1980 | 51° | 44° | 48° | 1.45" | — |
| 1979 | 51° | 43° | 47° | 1.96" | — |
| 1978 | 46° | 40° | 43° | — | — |
| 1977 | 48° | 32° | 40° | — | — |
| 1976 | 48° | 40° | 44° | — | — |
| 1975 | 43° | 31° | 37° | — | — |
| 1974 | 57° | 39° | 48° | 2.54" | — |
| 1973 | 57° | 44° | 51° | 0.66" | — |
| 1972warmest | 55° | 49° | 52° | 1.17" | — |
| 1971 | 41° | 34° | 37° | 0.64" | — |
55 years of data from SEATTLE UNIV OF WASHIN