Climate at a Glance

Statewide Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of January 2021. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, October 1991

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
October 1991
1-Month
55.6°F
(13.1°C)
54.6°F
(12.6°C)
1.0°F
(0.5°C)
83rd Coolest Coolest since: 1990 1925
44th Warmest Warmest since: 1989 1963
Ties: 1915, 1958, 1961
Sep–Oct 1991
2-Month
61.0°F
(16.1°C)
60.4°F
(15.8°C)
0.6°F
(0.3°C)
77th Coolest Coolest since: 1990 1917
50th Warmest Warmest since: 1986 1897, 2016
Ties: 1912, 1984
Aug–Oct 1991
3-Month
65.6°F
(18.7°C)
64.8°F
(18.2°C)
0.8°F
(0.5°C)
88th Coolest Coolest since: 1990 1917
39th Warmest Warmest since: 1984 1947
Ties: 1984
Jul–Oct 1991
4-Month
68.2°F
(20.1°C)
67.4°F
(19.7°C)
0.8°F
(0.4°C)
86th Coolest Coolest since: 1990 1917
41st Warmest Warmest since: 1983 1936
Ties: 1899, 1920, 1960, 2012
Jun–Oct 1991
5-Month
69.6°F
(20.9°C)
68.2°F
(20.1°C)
1.4°F
(0.8°C)
99th Coolest Coolest since: 1990 1917
28th Warmest Warmest since: 1983 1936
May–Oct 1991
6-Month
69.5°F
(20.8°C)
67.3°F
(19.6°C)
2.2°F
(1.2°C)
120th Coolest Coolest since: 1990 1917
7th Warmest Warmest since: 1941 1936
Ties: 1921, 1941, 1998
Apr–Oct 1991
7-Month
67.5°F
(19.7°C)
64.9°F
(18.3°C)
2.6°F
(1.4°C)
124th Coolest Coolest since: 1990 1917
3rd Warmest Warmest since: 1941 2010
Ties: 1936, 1941
Mar–Oct 1991
8-Month
64.6°F
(18.1°C)
61.9°F
(16.6°C)
2.7°F
(1.5°C)
121st Coolest Coolest since: 1990 1917
6th Warmest Warmest since: 1921 2012
Feb–Oct 1991
9-Month
61.2°F
(16.2°C)
58.2°F
(14.6°C)
3.0°F
(1.6°C)
123rd Coolest Coolest since: 1990 1917
4th Warmest Warmest since: 1921 2012
Jan–Oct 1991
10-Month
57.4°F
(14.1°C)
54.9°F
(12.7°C)
2.5°F
(1.4°C)
120th Coolest Coolest since: 1990 1904
7th Warmest Warmest since: 1938 2012
Ties: 2005
Dec 1990–Oct 1991
11-Month
55.0°F
(12.8°C)
52.7°F
(11.5°C)
2.3°F
(1.3°C)
119th Coolest Coolest since: 1990 1904
7th Warmest Warmest since: 1921 2012
Ties: 2005
Nov 1990–Oct 1991
12-Month
54.3°F
(12.4°C)
51.7°F
(10.9°C)
2.6°F
(1.5°C)
119th Coolest Coolest since: 1990 1904
7th Warmest Warmest since: 1921 2012
Ties: 2007
May 1990–Oct 1991
18-Month
58.3°F
(14.6°C)
56.8°F
(13.8°C)
1.5°F
(0.8°C)
110th Coolest Coolest since: 1990 1904
16th Warmest Warmest since: 1955 2012
Ties: 1914, 1939, 1955
Nov 1989–Oct 1991
24-Month
53.1°F
(11.7°C)
51.6°F
(10.9°C)
1.5°F
(0.8°C)
108th Coolest Coolest since: 1990 1905
17th Warmest Warmest since: 1955 2017
Ties: 1934, 1992
Nov 1988–Oct 1991
36-Month
52.6°F
(11.4°C)
51.6°F
(10.9°C)
1.0°F
(0.5°C)
98th Coolest Coolest since: 1990 1904, 1979
26th Warmest Warmest since: 1988 2018
Ties: 1922
Nov 1987–Oct 1991
48-Month
52.6°F
(11.4°C)
51.6°F
(10.9°C)
1.0°F
(0.5°C)
102nd Coolest Coolest since: 1990 1905
21st Warmest Warmest since: 1957 2019
Ties: 1932, 1957
Nov 1986–Oct 1991
60-Month
52.8°F
(11.6°C)
51.6°F
(10.9°C)
1.2°F
(0.7°C)
110th Coolest Coolest since: 1990 1905, 1906
12th Warmest Warmest since: 1957 2002, 2020
Ties: 1956, 2003

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published February 2021, retrieved on March 4, 2021 from https://www.ncdc.noaa.gov/cag/