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 October 2019. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, January 1899

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
January 1899
1-Month
25.2°F
(-3.8°C)
25.3°F
(-3.7°C)
-0.1°F
(-0.1°C)
50th Coolest Coolest since: 1897 1977
76th Warmest Warmest since: 1898 2006
Ties: 1903, 1910
Dec 1898–Jan 1899
2-Month
25.4°F
(-3.7°C)
27.5°F
(-2.5°C)
-2.1°F
(-1.2°C)
32nd Coolest Coolest to Date 1918
93rd Warmest Warmest since: 1898 1932
Nov 1898–Jan 1899
3-Month
29.1°F
(-1.6°C)
31.9°F
(-0.1°C)
-2.8°F
(-1.5°C)
19th Coolest Coolest to Date 1977
106th Warmest Warmest since: 1898 1932
Oct 1898–Jan 1899
4-Month
34.6°F
(1.4°C)
37.6°F
(3.1°C)
-3.0°F
(-1.7°C)
11th Coolest Coolest to Date 1977
114th Warmest Warmest since: 1898 1932
Ties: 1920
Sep 1898–Jan 1899
5-Month
41.5°F
(5.3°C)
43.4°F
(6.3°C)
-1.9°F
(-1.0°C)
18th Coolest Coolest to Date 1977
107th Warmest Warmest since: 1898 1932
Ties: 1927, 1938, 1979, 2014
Aug 1898–Jan 1899
6-Month
46.7°F
(8.2°C)
48.3°F
(9.1°C)
-1.6°F
(-0.9°C)
17th Coolest Coolest to Date 1977
108th Warmest Warmest since: 1898 1932
Ties: 2014
Jul 1898–Jan 1899
7-Month
50.8°F
(10.4°C)
52.3°F
(11.3°C)
-1.5°F
(-0.9°C)
18th Coolest Coolest to Date 1977
107th Warmest Warmest since: 1898 1932
Ties: 1936, 1952, 1979, 1994
Jun 1898–Jan 1899
8-Month
53.5°F
(11.9°C)
54.6°F
(12.6°C)
-1.1°F
(-0.7°C)
25th Coolest Coolest to Date 1918, 1977
100th Warmest Warmest since: 1898 1932
Ties: 1929, 1973, 1979, 2010
May 1898–Jan 1899
9-Month
54.5°F
(12.5°C)
55.5°F
(13.1°C)
-1.0°F
(-0.6°C)
28th Coolest Coolest to Date 1918
97th Warmest Warmest since: 1898 1932
Ties: 1916, 1920, 1929, 2010
Apr 1898–Jan 1899
10-Month
53.9°F
(12.2°C)
55.1°F
(12.8°C)
-1.2°F
(-0.6°C)
20th Coolest Coolest to Date 1918
105th Warmest Warmest since: 1898 1932
Ties: 1911, 1994, 2014
Mar 1898–Jan 1899
11-Month
52.9°F
(11.6°C)
53.7°F
(12.1°C)
-0.8°F
(-0.5°C)
29th Coolest Coolest to Date 1918
96th Warmest Warmest since: 1898 2013
Ties: 1916, 1985, 1993
Feb 1898–Jan 1899
12-Month
50.9°F
(10.5°C)
51.6°F
(10.9°C)
-0.7°F
(-0.4°C)
36th Coolest Coolest since: 1896 1918
89th Warmest Warmest since: 1898 2013
Aug 1897–Jan 1899
18-Month
50.5°F
(10.3°C)
50.5°F
(10.3°C)
0.0°F
(0.0°C)
56th Coolest Coolest since: 1898 1918
68th Warmest Warmest since: 1897 2017
Ties: 1897, 1928, 1941, 1967, 1986, 1990, 1995
Feb 1897–Jan 1899
24-Month
51.4°F
(10.8°C)
51.6°F
(10.9°C)
-0.2°F
(-0.1°C)
47th Coolest Coolest since: 1897 1918
77th Warmest Warmest since: 1898 2013
Ties: 1946, 1949, 1953, 1967, 1983
Feb 1896–Jan 1899
36-Month
51.5°F
(10.8°C)
51.5°F
(10.8°C)
0.0°F
(0.0°C)
55th Coolest Coolest since: 1898 1905
68th Warmest Warmest to Date 2013
Ties: 1945, 1960, 1965, 1985
Feb 1895–Jan 1899
48-Month
51.3°F
(10.7°C)
51.6°F
(10.9°C)
-0.3°F
(-0.2°C)
35th Coolest Coolest to Date 1905
87th Warmest Warmest to Date 1934, 2002, 2019
Ties: 1909, 1929, 1951, 1953, 1965, 1968, 1984

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on November 15, 2019 from https://www.ncdc.noaa.gov/cag/