Philadelphia PA Most Precipitation in a Day for Each Year

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

The list gives the highest daily precipitation for each year in Philadelphia 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 1925. During that time the heaviest downpour measured for a single day was 8.02 inches (203.7 millimetres) on July 28, 2013.

Since 1948 the precipitation extremes were observed at Philadelphia International Airport. Before then, the weather station was on the northern outskirts of the city.

Most precipitation in one day for recent years in Philadelphia
Inches	Date	Millimetres
2.19	December 18, 2023	55.6
1.99	October 02, 2022	50.5
3.17	August 28, 2021	80.5
4.16	August 04, 2020	105.7
2.87	June 20, 2019	72.9
4.54	September 07, 2018	115.3
2.58	September 16, 2017	65.5
1.96	May 21, 2016	49.8
4.76	September 10, 2015	120.9
4.42	April 30, 2014	112.3
8.02	July 28, 2013	203.7
3.12	September 04, 2012	79.2
4.84	August 14, 2011	122.9
3.00	October 01, 2010	76.2

Highest daily precipitation recorded at Philadelphia each year
Inches	Date	Millimetres
2.73	August 22, 2009	69.3
2.72	December 11, 2008	69.1
4.19	April 15, 2007	106.4
2.48	June 28, 2006	63.0
5.53	October 08, 2005	140.5
4.68	July 12, 2004	118.9
1.88	February 22, 2003	47.8
2.04	October 11, 2002	51.8
2.41	June 17, 2001	61.2
2.72	September 03, 2000	69.1
6.63	September 16, 1999	168.4
2.32	January 23, 1998	58.9
1.53	August 20, 1997	38.9
2.02	October 19, 1996	51.3
1.58	October 05, 1995	40.1
3.45	July 18, 1994	87.6
2.32	September 17, 1993	58.9
2.25	December 11, 1992	57.2
2.80	July 13, 1991	71.1
2.25	May 29, 1990	57.2
4.38	July 05, 1989	111.3
3.45	July 21, 1988	87.6
1.73	July 02, 1987	43.9
2.43	April 16, 1986	61.7
2.79	September 26, 1985	70.9
2.24	August 10, 1984	56.9
2.44	September 21, 1983	62.0
2.28	May 28, 1982	57.9
4.40	August 08, 1981	111.8
3.82	October 25, 1980	97.0
1.89	July 16, 1979	48.0
3.66	July 03, 1978	93.0
3.99	November 07, 1977	101.3
1.77	May 01, 1976	45.0
2.75	September 23, 1975	69.9
1.70	August 24, 1974	43.2
4.62	June 29, 1973	117.3
3.07	November 08, 1972	78.0
4.77	August 27, 1971	121.2
2.71	October 22, 1970	68.8
3.37	September 03, 1969	85.6
3.05	June 12, 1968	77.5
2.47	June 22, 1967	62.7
4.69	September 14, 1966	119.1
2.02	August 09, 1965	51.3
2.28	July 08, 1964	57.9
2.42	September 03, 1963	61.5
2.61	June 24, 1962	66.3
1.88	April 13, 1961	47.8
4.60	September 12, 1960	116.8
2.96	June 02, 1959	75.2
2.04	June 11, 1958	51.8
1.78	August 25, 1957	45.2
2.00	May 06, 1956	50.8
3.29	August 12, 1955	83.6
1.67	June 16, 1954	42.4
2.04	July 23, 1953	51.8
2.30	November 21, 1952	58.4
1.77	May 23, 1951	45.0
3.46	November 25, 1950	87.9
1.50	August 04, 1949	38.1
2.30	December 30, 1948	58.4
2.47	October 29, 1947	62.7
3.10	June 02, 1946	78.7
2.05	November 28, 1945	52.1
2.40	September 13, 1944	61.0
2.35	November 09, 1943	59.7
2.13	August 09, 1942	54.1
1.90	December 13, 1941 +	48.3
2.52	March 15, 1940	64.0
4.25	August 19, 1939	108.0
3.61	June 27, 1938	91.7
2.90	November 13, 1937	73.7
2.45	June 19, 1936 +	62.2
3.41	July 09, 1935	86.6
2.65	June 19, 1934	67.3
3.27	August 23, 1933	83.1
2.40	March 28, 1932	61.0
4.38	July 15, 1931	111.3
2.06	March 08, 1930	52.3
2.60	October 02, 1929	66.0
2.50	August 17, 1928	63.5
4.33	July 23, 1927	110.0
1.62	August 13, 1926	41.1
2.25	November 14, 1925	57.2

Philadelphia - Extreme Daily Precipitation for Each Year

Reference

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