Weather on December 30
Seattle, WA
55 Years of Data
Avg High
46°F
Avg Low
35°F
Warmest
1980
51°F avg
Coldest
1978
20°F avg
About This Date
December 30th in Seattle, WA typically brings chilly winter weather, with average highs around 46°F and lows near 35°F. Over 55 years of records, the warmest December 30th was in 1980 (51°F average), while the coldest was 1978 (20°F) — a 31°F range across recorded history. Precipitation has occurred on 56% of recorded December 30th dates, with snow falling 2% of the time. 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 30th in Seattle, WA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 48° | 31° | 39° | — | — |
| 2024 | 47° | 38° | 42° | — | — |
| 2023 | 53° | 44° | 49° | — | — |
| 2022 | 53° | 42° | 48° | 0.61" | — |
| 2021 | 35° | 28° | 32° | 0.05" | — |
| 2020 | 49° | 40° | 44° | 1.22" | — |
| 2019 | 49° | 43° | 46° | 0.03" | — |
| 2018 | 47° | 38° | 42° | — | — |
| 2017 | 48° | 40° | 44° | 0.2" | — |
| 2016 | 57° | 31° | 44° | 0.15" | — |
| 2015 | 44° | 27° | 36° | — | — |
| 2014 | 40° | 28° | 34° | — | — |
| 2013 | 47° | 40° | 43° | 0.08" | — |
| 2012 | 43° | 33° | 38° | — | — |
| 2011 | 50° | 34° | 42° | 0.03" | — |
| 2010 | 39° | 26° | 33° | — | — |
| 2009 | 49° | 37° | 43° | — | — |
| 2008 | 44° | 33° | 39° | 0.28" | — |
| 2007 | 43° | 36° | 39° | — | — |
| 2006 | 43° | 28° | 36° | — | — |
| 2005 | 47° | 43° | 45° | 1.8" | — |
| 2004 | 44° | 35° | 40° | 0.05" | — |
| 2003 | 37° | 24° | 31° | 0.23" | — |
| 2002 | 48° | 38° | 43° | 0.56" | — |
| 2001 | 50° | 33° | 42° | 0.03" | — |
| 2000 | 52° | 40° | 46° | 0.05" | — |
| 1999 | 45° | 40° | 42° | 0.03" | — |
| 1998 | 52° | 44° | 48° | — | — |
| 1997 | 52° | 38° | 45° | — | — |
| 1996 | 49° | 37° | 43° | 1.63" | — |
| 1995 | 52° | 47° | 49° | 0.48" | — |
| 1994 | 47° | 30° | 38° | — | — |
| 1993 | 47° | 42° | 44° | 1.24" | — |
| 1992 | 37° | 31° | 34° | 0.18" | — |
| 1991 | 50° | 36° | 43° | 0.23" | — |
| 1990 | 39° | 23° | 31° | — | — |
| 1989 | 49° | 45° | 47° | — | — |
| 1988 | 50° | 42° | 46° | 1.22" | — |
| 1987 | 47° | 32° | 39° | — | — |
| 1986 | 51° | 39° | 45° | — | — |
| 1985 | 42° | 34° | 38° | — | — |
| 1984 | 35° | 30° | 33° | 0.46" | 0.5" |
| 1983 | 52° | 43° | 47° | 0.13" | — |
| 1982 | 43° | 27° | 35° | — | — |
| 1981 | 40° | 33° | 36° | 0.03" | — |
| 1980warmest | 54° | 49° | 51° | 1.93" | — |
| 1979 | 45° | 35° | 40° | 0.58" | — |
| 1978coldest | 24° | 15° | 20° | — | — |
| 1977 | 43° | 33° | 38° | 0.03" | — |
| 1976 | 52° | 34° | 43° | — | — |
| 1975 | 47° | 39° | 43° | 0.03" | — |
| 1974 | 46° | 33° | 40° | — | — |
| 1973 | 43° | 33° | 38° | 0.18" | — |
| 1972 | 47° | 41° | 44° | — | — |
| 1971 | 44° | 34° | 39° | 0.05" | — |
55 years of data from SEATTLE URBAN SITE