Long Island - Extreme Daily Precipitation for Each Year





This page lists the biggest rainstorms or snowstorms of the year in Long Island, New York along with the date they occurred. The information answers questions like: When was the last time more than six inches of precipitation landed on Long Island in a single day? What was the rainiest day of 2018?

This page gives the highest daily precipitation for each year in Long Island 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 1938, with a few years missing data. During that time the heaviest downpour measured for a single day was 13.51 inches (343.2 millimetres) on August 13, 2014.

Since 1964 the precipitation extremes were observed at Long Island MacArthur Airport in Ronkonkoma. Before then, the weather station was at nearby Patchogue.

Most precipitation in one day for recent years in Long Island
Inches Date Milli­metres
3.11 March 02, 2018 79.0
4.02 October 29, 2017 102.1
2.13 January 23, 2016 54.1
2.30 September 10, 2015 58.4
13.51 August 13, 2014 343.2
4.15 June 07, 2013 105.4
4.14 June 25, 2012 105.2
5.32 August 14, 2011 135.1
2.66 March 29, 2010 67.6
Highest daily precipitation recorded at Long Island each year
Inches Date Milli­metres
2.39 September 26, 2008 60.7
3.34 July 18, 2007 84.8
4.63 April 23, 2006 117.6
5.38 October 14, 2005 136.7
3.69 April 13, 2004 93.7
2.85 May 26, 2003 72.4
2.72 August 29, 2002 69.1
2.83 June 17, 2001 71.9
4.87 June 06, 2000 123.7
3.61 January 03, 1999 91.7
3.98 June 13, 1998 101.1
2.08 April 28, 1997 + 52.8
3.35 October 19, 1996 85.1
1.80 October 05, 1995 45.7
1.79 August 05, 1994 45.5
2.27 December 05, 1993 57.7
3.52 June 05, 1992 89.4
5.91 August 19, 1991 150.1
6.74 August 24, 1990 171.2
4.01 May 16, 1989 101.9
2.63 November 20, 1988 66.8
2.52 March 31, 1987 64.0
1.46 November 19, 1986 37.1
2.13 August 25, 1985 54.1
2.69 July 21, 1984 68.3
3.19 April 16, 1983 81.0
4.09 June 05, 1982 103.9
3.25 June 25, 1981 82.6
2.08 April 28, 1980 52.8
2.97 March 06, 1979 75.4
3.00 September 12, 1978 76.2
2.21 August 22, 1977 56.1
3.11 August 08, 1976 79.0
3.22 June 12, 1975 81.8
2.65 October 16, 1974 67.3
1.97 April 26, 1973 50.0
4.53 October 07, 1972 115.1
2.33 November 29, 1971 59.2
2.05 August 23, 1970 52.1
3.91 October 03, 1969 99.3
2.03 November 10, 1968 51.6
2.83 March 07, 1967 71.9
3.12 September 15, 1966 79.2
1.61 January 24, 1965 40.9
2.45 December 04, 1964 62.2
1.68 November 07, 1963 42.7
2.40 August 28, 1962 61.0
2.77 July 20, 1961 70.4
1.97 September 12, 1960 50.0
1959
2.61 October 01, 1958 66.3
1.54 May 20, 1957 39.1
2.03 November 01, 1956 51.6
5.54 August 12, 1955 140.7
5.70 September 11, 1954 144.8
3.85 December 14, 1953 97.8
1.61 August 10, 1952 40.9
2.32 November 03, 1951 58.9
2.06 November 25, 1950 52.3
2.70 August 31, 1949 68.6
2.00 November 13, 1948 50.8
1947
5.86 August 07, 1946 148.8
2.01 November 29, 1945 51.1
2.40 January 04, 1944 61.0
2.60 September 15, 1943 66.0
4.09 June 08, 1942 103.9
2.22 June 14, 1941 56.4
2.66 March 04, 1940 67.6
3.37 August 20, 1939 85.6
4.22 September 21, 1938 107.2
Reference

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

Long Island - Extremes
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