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Heat in the Central U.S.; Heavy Rain Possible for South Texas; Monitoring Erin Tropical Impacts

Hot temperatures are forecast over the Plains and into the lower Mississippi River Valley Friday where Heat Advisories have been issued. Heavy rain from a disturbance in the western Gulf could bring flooding to south Texas. Erin could bring tropical storm conditions and heavy rain to Puerto Rico and the USVI this weekend with dangerous surf and rip currents impacting the western Atlantic Basin. Read More >

Chicago, IL

Weather Forecast Office

Halloween Climate Data for Chicago and Rockford

Weather.gov > Chicago, IL > Halloween Climate Data for Chicago and Rockford

Updated Nov 2022.

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. 

 

Chicago Halloween Climate Data
Halloween Climate Data for Chicago

 

Top 10 Warmest (Highs)   Top 10 Coldest (Highs)
1 1950 84   1 1873 31
2 1944 79   2 1917 32
3 1935 78   3 2019 33
  1933 78   4 1878 37
5 1974 77   5 1930 39
  1968 77     1906 39
7 1915 76     1874 39
  1888 76   8 2017 40
9 1900 75     1996 40
10 1909 74     1954 40
             
Top 10 Warmest (Lows)   Top 10 Coldest (Lows)
1 1974 65   1 1873 23
2 1900 61   2 1917 24
3 1933 59   3 2019 25
4 1950 58     1993 25
  1927 58   5 1996 26
6 1909 56     1988 26
7 1956 55     1923 26
  1876 55   8 1913 27
9 1998 54   9 1925 28
  1997 54     1890 28
             
Top 10 Wettest   Top 10 Snowiest
1 1994 2.26   1 2019 3.4
2 1941 1.27   2 2014 0.1
3 2013 1.04   3 1993 Trace
4 2015 0.77     1955 Trace
5 1912 0.75     1926 Trace
6 1973 0.65     1918 Trace
7 1935 0.62     1917 Trace
8 1987 0.59        
9 1960 0.55        
10 1892 0.50        
             

Percent of Years (Precip)

    

Percent of Years (Snow)

  
>0 49%     >0 5%  
>=0.01 35%     >=0.1 1%  
>=0.1 20%          
>=0.5 7%          
>=1 2%          

 

 

 

Chicago Yearly

 

Year
High Temp
Min Temp
Precip
Snow
1872
48
39
0.00
M
1873
31
23
0.02
M
1874
39
30
0.00
M
1875
41
30
0.00
M
1876
73
55
0.16
M
1877
53
37
0.00
M
1878
37
28
0.12
M
1879
42
28
0.00
M
1880
52
34
0.00
M
1881
54
47
0.00
M
1882
67
52
0.38
M
1883
50
38
0.00
M
1884
55
40
T
M
1885
49
40
0.34
0.0
1886
68
45
0.00
0.0
1887
49
30
0.00
0.0
1888
76
52
0.00
0.0
1889
48
44
0.17
0.0
1890
41
28
0.00
0.0
1891
52
42
0.00
0.0
1892
49
42
0.50
0.0
1893
62
37
0.00
0.0
1894
46
36
T
0.0
1895
42
34
T
T
1896
49
37
0.01
0.0
1897
60
48
T
0.0
1898
45
34
T
0.0
1899
52
36
0.00
0.0
1900
75
61
0.00
0.0
1901
64
50
0.03
0.0
1902
67
49
0.00
0.0
1903
66
52
0.00
0.0
1904
62
39
0.00
0.0
1905
45
35
0.01
0.0
1906
39
33
0.00
0.0
1907
57
46
0.00
0.0
1908
43
34
0.00
0.0
1909
74
56
0.00
0.0
1910
60
43
0.00
0.0
1911
48
38
0.04
0.0
1912
46
41
0.75
0.0
1913
40
27
0.00
0.0
1914
72
48
0.00
0.0
1915
76
54
0.00
0.0
1916
58
46
T
0.0
1917
32
24
0.01
T
1918
46
37
0.03
T
1919
70
47
0.09
0.0
1920
60
47
T
0.0
1921
56
50
0.03
0.0
1922
59
52
0.00
0.0
1923
40
26
0.00
0.0
1924
70
51
0.10
0.0
1925
43
28
0.00
0.0
1926
48
32
T
T
1927
67
58
T
0.0
1928
51
34
0.00
0.0
1929
64
53
0.22
0.0
1930
39
30
0.00
0.0
1931
50
43
0.07
0.0
1932
44
39
0.11
0.0
1933
78
59
0.00
0.0
1934
46
38
T
0.0
1935
78
52
0.62
0.0
1936
55
42
0.19
0.0
1937
52
45
0.00
0.0
1938
64
42
0.00
0.0
1939
43
32
T
0.0
1940
64
48
T
0.0
1941
60
46
1.27
0.0
1942
53
38
0.00
0.0
1943
68
46
0.32
0.0
1944
79
50
0.00
0.0
1945
55
35
0.00
0.0
1946
54
47
0.00
0.0
1947
57
46
T
0.0
1948
61
46
T
0.0
1949
43
30
0.00
0.0
1950
84
58
0.00
0.0
1951
41
31
0.00
0.0
1952
69
50
0.00
0.0
1953
70
44
T
0.0
1954
40
31
0.00
0.0
1955
51
37
0.01
T
1956
68
55
0.01
0.0
1957
53
46
0.00
0.0
1958
68
39
0.00
0.0
1959
50
47
0.08
0.0
1960
62
41
0.55
0.0
1961
59
45
0.00
0.0
1962
47
36
0.00
0.0
1963
54
45
0.06
0.0
1964
69
36
0.00
0.0
1965
58
41
0.00
0.0
1966
60
43
0.00
0.0
1967
53
49
0.10
0.0
1968
77
44
0.00
0.0
1969
51
46
0.31
0.0
1970
51
37
0.19
0.0
1971
56
37
0.00
0.0
1972
45
44
0.02
0.0
1973
49
41
0.65
0.0
1974
77
65
T
0.0
1975
60
41
0.00
0.0
1976
49
32
0.01
0.0
1977
64
50
0.25
0.0
1978
55
39
0.00
0.0
1979
73
53
0.29
0.0
1980
61
37
0.00
0.0
1981
72
54
0.00
0.0
1982
64
51
0.18
0.0
1983
53
39
T
0.0
1984
61
34
0.47
0.0
1985
55
45
0.08
0.0
1986
65
44
0.00
0.0
1987
58
46
0.59
0.0
1988
53
26
T
0.0
1989
55
35
0.01
0.0
1990
73
42
0.00
0.0
1991
54
41
0.02
0.0
1992
50
36
0.06
0.0
1993
44
25
T
T
1994
54
37
2.26
0.0
1995
50
40
0.20
0.0
1996
40
26
0.00
0.0
1997
65
54
0.00
0.0
1998
59
54
0.00
0.0
1999
69
46
0.01
0.0
2000
70
47
0.00
0.0
2001
68
50
0.00
0.0
2002
49
31
0.00
0.0
2003
67
49
0.01
0.0
2004
56
45
0.00
0.0
2005
57
50
0.09
0.0
2006
62
35
0.00
0.0
2007
62
41
0.00
0.0
2008
70
48
0.00
0.0
2009
46
35
T
0.0
2010
52
36
0.00
0.0
2011
53
36
0.00
0.0
2012
50
34
0.00
0.0
2013
64
46
1.04
0.0
47
33
0.03
0.1
2015
52
45
0.77
0.0
2016
61
38
0.00
0.0
2017
40
34
0.00
0.0
2018 61 47 0.17 0.0
2019 33 25 0.31 3.4
2020 59 30 0.00 0.0
2021 53 39 0.00 0.0
2022 57 50 0.02 0.0

 

 

 

Rockford

Official weather records for Rockford date back to 1905 for temperatures, precipitation, and snowfall. Observation location history for Rockford can be found here.

 

Rockford Halloween Climate Data
Halloween Climate Data for Rockford

 

Top 10 Warmest (Highs)   Top 10 Coldest (Highs)
1 1950 84   1 1917 32
2 1933 82   2 2019 33
3 1935 80   3 1996 36
4 1944 77   4 1951 38
5 1974 75     1906 38
  1968 75   6 2017 40
  1915 75     1895 40
  1914 75   8 2002 41
9 2000 73   9 1995 42
  1990 73     1954 42
             
Top 10 Warmest (Lows)   Top 10 Coldest (Lows)
1 1974 62   1 1925 14
2 1950 54   2 1917 18
  1948 54   3 2019 20
4 1929 54   4 1923 21
5 1935 53     1913 21
6 1997 52   6 1930 22
  1982 52   7 1993 24
8 1921 52   8 1996 25
9 1981 51   9 1988 25
10 1998 50   10 1976 25
             
Top 10 Wettest   Top 10 Snowiest
1 1919 2.51   1 2019 3.1
2 1960 1.37   2 2014 0.1
3 1985 1.17   3 2017 T
4 1936 0.8   4 1935 T
5 2013 0.79   5 1926 T
6 1984 0.7   6 1918 T
7 1935 0.6   7 1917 T
8 1994 0.55        
9 2015 0.47        
10 1969 0.46        
             

Percent of Years (Precip)

    

Percent of Years (Snow)

  
>0 45%     >0 6%  
>=0.01 31%     >=0.1 2%  
>=0.1 23%          
>=0.5 8%          
>=1 3%          

 


 

Rockford Yearly

 

Year High Temp Min Temp Precip Snow
1905 44 30 0.00 0.0
1906 38 27 0.00 0.0
1907 48 43 0.02 0.0
1908 44 25 0.00 0.0
1909 71 49 0.00 0.0
1910 60 31 0.00 0.0
1911 42 38 0.14 0.0
1912 44 35 0.14 0.0
1913 43 21 0.00 0.0
1914 75 41 0.00 0.0
1915 75 39 0.00 0.0
1916 58 42 0.00 0.0
1917 32 18 0.03 T
1918 44 31 T T
1919 M M 2.51 0.0
1920 56 46 0.05 0.0
1921 61 52 0.10 0.0
1922 66 46 0.00 0.0
1923 44 21 0.00 0.0
1924 71 46 0.20 0.0
1925 43 14 0.00 0.0
1926 49 25 T T
1927 70 50 0.00 0.0
1928 45 29 0.00 0.0
1929 63 54 0.46 0.0
1930 43 22 0.00 0.0
1931 51 41 0.07 0.0
1932 44 37 T 0.0
1933 82 48 0.03 0.0
1934 53 34 0.00 0.0
1935 80 53 0.70 T
1936 51 40 0.80 0.0
1937 59 33 0.00 0.0
1938 67 36 0.00 0.0
1939 45 32 0.00 0.0
1940 67 37 0.00 0.0
1941 49 42 0.25 0.0
1942 55 35 0.00 0.0
1943 65 42 0.15 0.0
1944 77 49 0.00 0.0
1945 65 29 0.00 0.0
1946 55 38 0.00 0.0
1947 57 46 0.00 0.0
1948 68 54 0.00 0.0
1949 44 25 0.00 0.0
1950 84 54 0.00 0.0
1951 38 29 0.00 0.0
1952 71 40 0.00 0.0
1953 64 42 T 0.0
1954 42 27 0.00 0.0
1955 51 36 T 0.0
1956 70 49 0.00 0.0
1957 57 31 0.00 0.0
1958 66 31 0.00 0.0
1959 50 44 0.07 0.0
1960 59 41 1.37 0.0
1961 57 41 0.00 0.0
1962 46 32 0.00 0.0
1963 51 46 0.15 0.0
1964 67 35 0.00 0.0
1965 59 39 0.00 0.0
1966 58 40 0.00 0.0
1967 47 44 0.08 0.0
1968 75 42 0.00 0.0
1969 50 44 0.47 0.0
1970 46 34 T 0.0
1971 52 34 0.00 0.0
1972 47 43 0.17 0.0
1973 48 42 0.38 0.0
1974 75 62 0.18 0.0
1975 62 39 T 0.0
1976 49 25 0.00 0.0
1977 61 50 0.25 0.0
1978 61 34 0.00 0.0
1979 70 48 0.28 0.0
1980 62 29 0.00 0.0
1981 66 51 T 0.0
1982 68 52 0.02 0.0
1983 56 39 T 0.0
1984 62 33 0.78 0.0
1985 53 40 1.17 0.0
1986 66 41 0.00 0.0
1987 58 41 0.07 0.0
1988 54 25 T 0.0
1989 47 32 T 0.0
1990 73 42 0.00 0.0
1991 53 36 0.26 0.0
1992 50 30 0.18 0.0
1993 43 24 0.00 0.0
1994 46 40 0.60 0.0
1995 42 34 0.27 0.0
1996 36 25 0.00 0.0
1997 67 52 0.00 0.0
1998 56 50 0.00 0.0
1999 68 40 0.00 0.0
2000 73 49 0.00 0.0
2001 65 44 0.00 0.0
2002 41 26 0.00 0.0
2003 65 46 T 0.0
2004 53 44 0.00 0.0
2005 56 43 T 0.0
2006 51 30 0.00 0.0
2007 63 40 0.00 0.0
2008 72 42 0.00 0.0
2009 46 30 T 0.0
2010 53 34 0.00 0.0
2011 51 28 0.00 0.0
2012 51 29 0.00 0.0
2013 63 44 0.79 0.0
2014 47 33 T 0.1
2015 52 45 0.55 0.0
2016 61 38 T 0.0
2017 40 32 T T
2018 59 45 0.00 0.0
2019 33 20 0.16 3.1
2020 61 29 0.00 0.0
2021 54 37 0.00 0.0
2022 68 41 0.00 0.0

 

 

 

 

 

 

 
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