Baltimore - Extreme Daily Precipitation for Each Year





This page lists the biggest rainstorms or snowstorms of the year in Baltimore, Maryland along with the date they occurred. The information answers questions like: When was the last time more than half a foot of rain landed on Baltimore in a single day? What was the wettest day of 2018?

The list gives the highest daily precipitation for each year in Baltimore 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 1893. During that time the heaviest downpour measured for a single day was 7.62 inches (193.5 millimetres) on August 23, 1933.

Since 1940 the precipitation extremes were observed at Baltimore Washington International Airport. Before then, the weather station was in downtown Baltimore.

Most precipitation in one day for recent years in Baltimore
Inches Date Milli­metres
4.79 July 21, 2018 121.7
2.58 July 28, 2017 65.5
2.61 February 24, 2016 66.3
3.11 June 27, 2015 79.0
6.30 August 12, 2014 160.0
3.66 October 11, 2013 93.0
5.51 October 29, 2012 140.0
3.59 August 27, 2011 91.2
6.02 September 30, 2010 152.9
Highest daily precipitation recorded at Baltimore each year
Inches Date Milli­metres
2.29 May 26, 2009 58.2
3.57 September 27, 2008 90.7
2.52 April 15, 2007 64.0
2.75 June 25, 2006 69.9
4.37 October 08, 2005 111.0
4.45 July 27, 2004 113.0
2.30 February 22, 2003 58.4
2.21 August 28, 2002 56.1
3.23 August 30, 2001 82.0
2.14 September 25, 2000 54.4
5.02 September 16, 1999 127.5
1.82 January 23, 1998 46.2
2.75 August 20, 1997 69.9
2.73 December 13, 1996 69.3
2.67 August 06, 1995 67.8
2.62 September 22, 1994 66.5
2.45 March 13, 1993 62.2
2.47 September 25, 1992 62.7
2.36 March 23, 1991 59.9
2.35 July 12, 1990 59.7
2.60 August 28, 1989 66.0
1.75 July 23, 1988 44.5
3.18 July 01, 1987 80.8
2.49 December 24, 1986 63.2
5.00 September 27, 1985 127.0
1.84 August 03, 1984 46.7
3.26 February 11, 1983 82.8
1.87 October 25, 1982 47.5
2.30 July 04, 1981 58.4
1.71 October 25, 1980 43.4
4.39 September 05, 1979 111.5
2.33 July 03, 1978 59.2
3.36 December 18, 1977 85.3
4.18 September 16, 1976 106.2
3.45 July 13, 1975 87.6
1.99 December 16, 1974 50.5
1.78 September 03, 1973 45.2
3.84 June 22, 1972 97.5
4.04 August 27, 1971 102.6
1.83 April 14, 1970 46.5
1.95 August 09, 1969 49.5
3.72 September 10, 1968 94.5
2.72 July 02, 1967 69.1
3.82 September 14, 1966 97.0
1.64 February 07, 1965 41.7
2.02 November 25, 1964 51.3
3.19 June 29, 1963 81.0
2.74 October 04, 1962 69.6
2.39 October 21, 1961 60.7
3.42 September 12, 1960 86.9
2.37 June 02, 1959 60.2
2.68 August 12, 1958 68.1
2.37 September 10, 1957 60.2
4.26 July 20, 1956 108.2
4.91 August 12, 1955 124.7
1.28 October 15, 1954 32.5
3.41 August 08, 1953 86.6
5.85 July 08, 1952 148.6
2.33 June 10, 1951 59.2
2.33 September 10, 1950 59.2
2.21 May 22, 1949 56.1
2.75 August 11, 1948 69.9
2.97 November 03, 1947 75.4
2.81 July 22, 1946 71.4
2.49 December 05, 1945 63.2
3.41 September 13, 1944 86.6
2.65 October 26, 1943 67.3
4.67 August 08, 1942 118.6
3.65 June 23, 1941 92.7
2.19 April 08, 1940 55.6
2.74 April 26, 1939 69.6
1.65 February 19, 1938 41.9
3.74 April 26, 1937 95.0
2.51 August 29, 1936 63.8
3.45 September 05, 1935 87.6
3.84 September 07, 1934 97.5
7.62 August 23, 1933 193.5
3.30 October 17, 1932 83.8
2.08 August 22, 1931 52.8
2.23 May 24, 1930 56.6
3.39 October 02, 1929 86.1
2.69 August 12, 1928 68.3
1.98 October 12, 1927 50.3
3.11 November 16, 1926 79.0
2.42 January 02, 1925 61.5
1.97 August 25, 1924 50.0
1.62 October 23, 1923 41.1
4.38 October 10, 1922 111.3
2.06 May 12, 1921 52.3
2.64 August 01, 1920 67.1
1.64 July 18, 1919 + 41.7
1.71 March 21, 1918 43.4
1.77 July 10, 1917 45.0
1.87 July 25, 1916 47.5
3.94 June 02, 1915 100.1
2.12 November 15, 1914 53.8
2.75 August 01, 1913 69.9
5.97 September 24, 1912 151.6
3.05 August 25, 1911 77.5
3.39 April 17, 1910 86.1
3.08 December 13, 1909 78.2
1.61 January 12, 1908 40.9
3.13 September 23, 1907 79.5
3.99 July 22, 1906 101.3
2.62 July 07, 1905 66.5
3.20 September 15, 1904 81.3
3.90 July 12, 1903 99.1
3.29 September 26, 1902 83.6
2.88 December 29, 1901 73.2
2.21 September 16, 1900 56.1
1.86 August 27, 1899 47.2
1.47 August 05, 1898 37.3
2.10 July 27, 1897 53.3
3.48 February 06, 1896 88.4
4.76 September 06, 1895 120.9
1.90 September 19, 1894 48.3
1.21 February 13, 1893 30.7
Reference

Jay Lawrimore. 2016. Global Summary of the Year, Version 1.0. NOAA National Centers for Environmental Information. 

Baltimore - Extremes
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