Chicago - Extreme Daily Precipitation for Each Year





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

The list gives the highest daily precipitation for each year in Chicago 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 were observed at Chicago's Midway Airport and go back to 1942. During that time the heaviest downpour measured for a single day was 6.16 inches (156.5 millimetres) on July 12, 1957.

Most precipitation in one day for recent years in Chicago
Inches Date Milli­metres
2.37 June 21, 2018 60.2
5.11 October 14, 2017 129.8
2.00 August 12, 2016 50.8
3.87 September 18, 2015 98.3
4.53 August 22, 2014 115.1
2.73 April 17, 2013 69.3
3.08 August 26, 2012 78.2
2.58 June 09, 2011 65.5
4.77 July 24, 2010 121.2
Highest daily precipitation recorded at Chicago each year
Inches Date Milli­metres
2.02 March 08, 2009 51.3
3.62 September 13, 2008 91.9
2.49 August 23, 2007 63.2
3.80 October 02, 2006 96.5
0.96 January 13, 2005 24.4
1.60 May 30, 2004 40.6
2.23 November 18, 2003 56.6
2.61 May 11, 2002 66.3
3.58 August 02, 2001 90.9
4.16 September 11, 2000 105.7
1.88 June 01, 1999 47.8
3.51 September 07, 1998 89.2
3.25 February 21, 1997 82.6
5.72 July 17, 1996 145.3
3.49 November 10, 1995 88.6
2.63 October 31, 1994 66.8
3.11 June 07, 1993 79.0
3.25 September 09, 1992 82.6
2.65 May 25, 1991 67.3
3.69 July 19, 1990 93.7
2.08 September 01, 1989 52.8
1.68 November 09, 1988 + 42.7
3.90 August 26, 1987 99.1
2.72 September 26, 1986 69.1
3.18 October 18, 1985 80.8
2.13 August 09, 1984 54.1
2.88 June 27, 1983 73.2
2.78 December 02, 1982 70.6
2.77 June 13, 1981 70.4
1980
2.60 August 17, 1979 66.0
3.03 July 20, 1978 77.0
2.92 September 01, 1977 74.2
4.64 June 13, 1976 117.9
3.83 April 18, 1975 97.3
2.03 July 02, 1974 51.6
1.65 April 30, 1973 41.9
3.65 September 28, 1972 92.7
2.18 December 10, 1971 55.4
2.43 October 13, 1970 61.7
3.04 July 17, 1969 77.2
3.79 August 16, 1968 96.3
2.94 June 10, 1967 74.7
4.71 July 27, 1966 119.6
2.61 December 24, 1965 66.3
1.70 July 18, 1964 43.2
2.19 July 16, 1963 55.6
1.82 July 22, 1962 46.2
2.55 August 01, 1961 64.8
2.76 January 12, 1960 70.1
4.58 June 25, 1959 116.3
2.07 June 08, 1958 52.6
6.16 July 12, 1957 156.5
1.57 August 29, 1956 39.9
2.03 August 06, 1955 51.6
3.95 October 03, 1954 100.3
2.42 June 10, 1953 61.5
1.60 August 09, 1952 40.6
2.84 May 10, 1951 72.1
2.48 July 16, 1950 63.0
2.58 June 14, 1949 65.5
2.50 March 19, 1948 63.5
2.58 April 05, 1947 65.5
2.43 July 09, 1946 61.7
1.95 May 14, 1945 49.5
1.62 March 14, 1944 41.1
3.93 July 06, 1943 99.8
1.96 February 06, 1942 49.8
Reference

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

Chicago - Extremes
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