Chicago official 10"+ snowstorms (via LOT)
Jan 18-20, 1886: 14.0"
Feb 12-14, 1894: 11.0"
Dec 27, 1894: 10.1"
Feb 6-7, 1895: 13.4"
Nov 25-26, 1895: 12.0"
Feb 3-4, 1896: 12.5"
Feb 12-13, 1896: 12.0"
Mar 23-24, 1897: 10.0"
Feb 28, 1900: 11.3"
Feb 2-4, 1901: 12.7"
Dec 12, 1903: 11.3"
Feb 18-19, 1908: 12.8"
Jan 12-14, 1910: 10.2"
Jan 6-7, 1918: 14.9"
Mar 30-31, 1926: 12.6"
Dec 17-19, 1929: 14.8"
Mar 25-26, 1930: 19.2"
Mar 7-8, 1931: 16.2"
Feb 6-7, 1933: 12.7"
Dec 9-10, 1934: 11.3"
Jan 30, 1939: 14.9"
Dec 10-11, 1944: 10.9"
Dec 5-8, 1950: 13.3"
Dec 14, 1951: 10.0"
Mar 2-3, 1954: 11.8"
Dec 19-20, 1960: 12.5"
Dec 22-23, 1961: 11.7"
Feb 23-25, 1965: 11.5"
Jan 26-27, 1967: 23.0"
Dec 22-23, 1969: 11.3"
Mar 25-26, 1970: 14.3"
Apr 1-2, 1970: 10.7"
Jan 9-10, 1977: 10.9"
Jan 25-27, 1978: 12.4"
Feb 6-7, 1978: 10.3"
Jan 12-14, 1979: 20.3"
Feb 10-11, 1981: 11.2
Jan 1-3, 1999: 21.6"
Feb 18, 2000: 11.1"
Jan 30-31, 2002: 12.0"
Jan 21-23, 2005: 11.2"
Feb 13-14, 2007: 10.2"
Jan 9-10, 2009: 12.0"
Feb 9-10, 2010: 12.9"
Jan 31-Feb 2, 2011: 21.2"
Dec 31-Jan 2, 2014: 10.9"
Jan 4-5, 2014: 11.7"
Jan 31-Feb 2, 2015: 19.3"
Nov 20-21, 2015: 11.2"