Numerous severe thunderstorms are expected across a broad region from the Ohio Valley to the Mid-Atlantic and Northeast States today into tonight. Swaths of damaging wind gusts are expected and some tornadoes are possible. Bertha is expected to bring tropical storm conditions to portions of the Gulf Coast from the Florida Panhandle westward to southeastern Louisiana later today and Wednesday. Read More >
Updated March 2023.
Chicago
Official weather records for Chicago date back to 1871 for temperatures and precipitation, and to 1884 for snowfall. Observation location history for Chicago can be found here.
 |
| St. Patrick's Day Climate Data for Chicago |
| Top 10 Warmest (Highs) | Top 10 Coldest (Highs) | |||||
| 1 | 2012 | 82 | 1 | 1941 | 11 | |
| 2 | 2009 | 74 | 2 | 1902 | 15 | |
| 1894 | 74 | 3 | 1939 | 23 | ||
| 4 | 2022 | 73 | 4 | 1892 | 24 | |
| 2003 | 73 | 1885 | 24 | |||
| 1966 | 73 | 1875 | 24 | |||
| 7 | 1945 | 68 | 7 | 1967 | 25 | |
| 8 | 2011 | 67 | 8 | 1900 | 26 | |
| 1969 | 67 | 9 | 1906 | 27 | ||
| 10 | 1968 | 64 | 10 | 1916 | 28 | |
| 1874 | 64 | 1876 | 28 | |||
| Top 10 Warmest (Lows) | Top 10 Coldest (Lows) | |||||
| 1 | 2012 | 58 | 1 | 1900 | 0 | |
| 2 | 1894 | 49 | 2 | 1941 | 1 | |
| 3 | 2011 | 48 | 3 | 1902 | 3 | |
| 4 | 2022 | 47 | 1885 | 6 | ||
| 5 | 1927 | 44 | 5 | 1875 | 9 | |
| 6 | 1945 | 43 | 1939 | 11 | ||
| 7 | 1946 | 42 | 1993 | 12 | ||
| 1874 | 42 | 8 | 1906 | 12 | ||
| 9 | 2009 | 41 | 9 | 1967 | 13 | |
| 1999 | 41 | 1909 | 14 | |||
| Top 10 Wettest | Top 10 Snowiest | |||||
| 1 | 1965 | 1.42 | 1 | 1984 | 4.1 | |
| 2 | 1919 | 0.82 | 2 | 1965 | 3.7 | |
| 3 | 1991 | 0.59 | 1904 | 3.7 | ||
| 4 | 1904 | 0.51 | 4 | 1973 | 2.7 | |
| 5 | 1998 | 0.49 | 5 | 1956 | 1.4 | |
| 6 | 1946 | 0.47 | 6 | 2004 | 0.8 | |
| 7 | 1980 | 0.45 | 7 | 2005 | 0.6 | |
| 8 | 2021 | 0.37 | 1960 | 0.6 | ||
| 1930 | 0.37 | 9 | 1934 | 0.5 | ||
| 10 | 1973 | 0.35 | 10 | 4 Years | 0.2 | |
|
Percent of Years (Precip) |
Percent of Years (Snow) |
|||||
| >0 | 53% | >0 | 33% | |||
| >=0.01 | 30% | >=0.1 | 13% | |||
| >=0.1 | 13% | >1 | 4% | |||
| >=0.5 | 3% | >3 | 2% | |||
| More High Temperature Stats | ||||||
| >=60° | 11% | |||||
| <=32° | 16% | |||||
Rockford
Official weather records for Rockford date back to 1905 for temperatures, precipitation, and snowfall. Observation location history for Rockford can be found here.
 |
| St. Patrick's Day Climate Data for Rockford |
| Top 10 Warmest (Highs) | Top 10 Coldest (Highs) | |||||
| 1 | 2012 | 82 | 1 | 1941 | 12 | |
| 2 | 2009 | 75 | 2 | 1906 | 18 | |
| 3 | 2003 | 74 | 3 | 1939 | 22 | |
| 4 | 1966 | 73 | 4 | 1993 | 24 | |
| 5 | 1945 | 70 | 1909 | 24 | ||
| 6 | 2022 | 68 | 6 | 1959 | 25 | |
| 7 | 2011 | 67 | 7 | 1967 | 28 | |
| 1921 | 67 | 8 | 1984 | 30 | ||
| 9 | 1930 | 66 | 9 | 1989 | 31 | |
| 10 | 2010 | 64 | 1978 | 31 | ||
| 1960 | 31 | |||||
| 1943 | 31 | |||||
| Top 10 Warmest (Lows) | Top 10 Coldest (Lows) | |||||
| 1 | 2012 | 57 | 1 | 1941 | -3 | |
| 2 | 2011 | 45 | 2 | 1939 | 8 | |
| 2003 | 45 | 1906 | 8 | |||
| 4 | 1945 | 44 | 4 | 1923 | 9 | |
| 5 | 1966 | 41 | 1909 | 9 | ||
| 1930 | 41 | 6 | 1959 | 10 | ||
| 7 | 2022 | 40 | 7 | 1993 | 11 | |
| 2009 | 40 | 1976 | 11 | |||
| 1946 | 40 | 1913 | 11 | |||
| 10 | 1927 | 39 | 10 | 1967 | 12 | |
| 1926 | 12 | |||||
| Top 10 Wettest | Top 10 Snowiest | |||||
| 1 | 1919 | 0.62 | 1 | 1984 | 4.0 | |
| 2 | 1934 | 0.45 | 2 | 1965 | 2.7 | |
| 3 | 1991 | 0.42 | 3 | 2004 | 1.0 | |
| 4 | 1963 | 0.35 | 4 | 2005 | 0.9 | |
| 5 | 1984 | 0.31 | 5 | 2001 | 0.6 | |
| 6 | 1998 | 0.29 | 1996 | 0.6 | ||
| 7 | 1927 | 0.24 | 1960 | 0.6 | ||
| 8 | 2021 | 0.19 | 8 | 1934 | 0.5 | |
| 1979 | 0.19 | 9 | 1989 | 0.4 | ||
| 10 | 2018 | 0.15 | 1964 | 0.4 | ||
| 1989 | 0.15 | 1935 | 0.4 | |||
|
Percent of Years (Precip) |
Percent of Years (Snow) |
|||||
| >0 | 41% | >0 | 25% | |||
| >=0.01 | 26% | >=0.1 | 13% | |||
| >=0.1 | 12% | >1 | 3% | |||
| >=0.5 | 1% | >3 | 1% | |||
| More High Temperature Stats | ||||||
| >=60° | 15% | |||||
| <=32° | 12% | |||||
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