Seattle WA Most Precipitation in a Day for Each Year

This page lists the biggest rainstorms or snowstorms of the year in Seattle, Washington along with the date they occurred. The information answers questions like: When was the last time more than three inches of precipitation landed on Seattle in a single day? What was the rainiest day of 2019?

This page gives the highest daily precipitation for each year in Seattle and the date that it happened. A date with a plus sign beside it means the same amount of moisture also fell on at least one other day earlier that year.

These records go back to 1894, with just one year missing data. During that time the heaviest downpour measured for a single day was 5.02 inches (127.5 millimetres) on October 20, 2003.

Since 1948 the precipitation extremes were observed at Seattle—Tacoma International Airport. Before then, the weather station was at University of Washington.

Most precipitation in one day for recent years in Seattle
Inches	Date	Millimetres
2.39	December 05, 2023	60.7
2.97	February 28, 2022	75.4
2.33	January 12, 2021	59.2
1.64	December 21, 2020	41.7
3.25	December 20, 2019	82.6
1.84	November 27, 2018	46.7
1.74	January 17, 2017	44.2
1.75	October 13, 2016	44.5
2.20	March 15, 2015	55.9
1.84	March 05, 2014	46.7
1.71	September 28, 2013	43.4
2.13	November 19, 2012	54.1
1.76	November 22, 2011	44.7
2.19	December 12, 2010	55.6

Highest daily precipitation recorded at Seattle each year
Inches	Date	Millimetres
2.29	January 07, 2009	58.2
2.15	November 06, 2008	54.6
3.77	December 03, 2007	95.8
3.29	November 06, 2006	83.6
2.39	January 17, 2005	60.7
1.63	January 29, 2004	41.4
5.02	October 20, 2003	127.5
1.45	April 13, 2002	36.8
2.61	November 14, 2001	66.3
1.34	February 01, 2000	34.0
1.52	November 12, 1999	38.6
3.04	November 25, 1998	77.2
1.86	March 18, 1997	47.2
3.06	February 08, 1996	77.7
1.93	November 07, 1995	49.0
1.65	December 26, 1994	41.9
1.81	March 22, 1993	46.0
1.50	January 27, 1992	38.1
2.64	April 04, 1991	67.1
2.95	November 09, 1990	74.9
1.41	December 04, 1989	35.8
1.61	January 14, 1988	40.9
1.93	January 31, 1987	49.0
2.98	January 18, 1986	75.7
1.54	June 06, 1985	39.1
1.36	January 24, 1984	34.5
1.35	January 04, 1983	34.3
1.66	December 03, 1982	42.2
2.72	October 06, 1981	69.1
1.26	November 21, 1980	32.0
1.67	December 14, 1979	42.4
1.65	September 22, 1978	41.9
1.55	December 10, 1977	39.4
1.13	January 14, 1976	28.7
1.76	February 19, 1975	44.7
2.14	December 26, 1974	54.4
1.48	November 11, 1973	37.6
2.70	March 05, 1972	68.6
1.61	December 08, 1971	40.9
1.67	December 05, 1970	42.4
1.83	May 29, 1969	46.5
1.85	December 03, 1968	47.0
2.26	January 19, 1967	57.4
1.70	December 12, 1966	43.2
1.85	April 19, 1965	47.0
1.50	November 30, 1964	38.1
1.32	February 02, 1963	33.5
1.46	November 25, 1962	37.1
1.55	February 24, 1961	39.4
1.64	November 20, 1960	41.7
3.41	November 20, 1959	86.6
1.78	January 16, 1958	45.2
1.11	February 24, 1957	28.2
1.78	December 09, 1956	45.2
2.58	February 07, 1955	65.5
1.64	January 21, 1954	41.7
1.65	September 30, 1953	41.9
1.00	January 30, 1952	25.4
2.98	February 09, 1951	75.7
2.08	March 03, 1950	52.8
1.83	February 16, 1949	46.5
2.04	March 21, 1948	51.8
1.92	October 18, 1947	48.8
1.89	February 05, 1946	48.0
–	1945	–
0.79	November 25, 1944	20.1
1.95	March 27, 1943	49.5
1.75	November 14, 1942	44.5
1.83	November 13, 1941	46.5
1.15	December 19, 1940	29.2
1.47	December 16, 1939	37.3
0.83	January 14, 1938 +	21.1
2.84	December 27, 1937	72.1
1.58	January 12, 1936	40.1
2.32	January 21, 1935	58.9
1.61	January 19, 1934	40.9
2.29	November 02, 1933	58.2
1.44	November 05, 1932	36.6
1.56	September 05, 1931	39.6
1.07	March 21, 1930	27.2
1.43	December 13, 1929	36.3
1.09	January 03, 1928	27.7
1.80	October 03, 1927	45.7
1.05	December 01, 1926 +	26.7
1.16	February 01, 1925	29.5
1.88	February 11, 1924	47.8
1.59	February 14, 1923	40.4
1.45	December 23, 1922	36.8
3.40	December 11, 1921	86.4
1.35	March 13, 1920	34.3
2.40	January 22, 1919	61.0
1.47	December 02, 1918	37.3
1.19	December 17, 1917	30.2
1.45	January 22, 1916	36.8
1.79	January 03, 1915	45.5
1.51	January 06, 1914	38.4
0.94	January 24, 1913	23.9
1.39	November 18, 1912	35.3
1.13	January 18, 1911	28.7
1.82	November 20, 1910	46.2
1.28	October 23, 1909	32.5
1.28	November 17, 1908	32.5
1.41	September 11, 1907	35.8
2.69	December 06, 1906	68.3
1.42	June 03, 1905	36.1
1.99	November 20, 1904	50.5
2.57	March 10, 1903	65.3
2.02	December 24, 1902	51.3
1.21	November 22, 1901	30.7
2.00	December 20, 1900	50.8
1.05	August 14, 1899	26.7
2.04	October 14, 1898	51.8
2.89	December 13, 1897	73.4
1.76	November 13, 1896	44.7
2.05	December 09, 1895	52.1
2.19	January 13, 1894	55.6

Seattle - Extreme Daily Precipitation for Each Year

Reference

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