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 1949

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
January 1949
1-Month
28.6°F
(-1.9°C)
25.3°F
(-3.7°C)
3.3°F
(1.8°C)
89th Coolest Coolest since: 1948 1977
37th Warmest Warmest since: 1947 2006
Ties: 1896, 1911
Dec 1948–Jan 1949
2-Month
30.6°F
(-0.8°C)
27.5°F
(-2.5°C)
3.1°F
(1.7°C)
97th Coolest Coolest since: 1948 1918
28th Warmest Warmest since: 1947 1932
Ties: 1906, 1907, 1931
Nov 1948–Jan 1949
3-Month
34.8°F
(1.6°C)
31.9°F
(-0.1°C)
2.9°F
(1.7°C)
102nd Coolest Coolest since: 1948 1977
23rd Warmest Warmest since: 1947 1932
Ties: 1942
Oct 1948–Jan 1949
4-Month
39.1°F
(3.9°C)
37.6°F
(3.1°C)
1.5°F
(0.8°C)
90th Coolest Coolest since: 1948 1977
35th Warmest Warmest since: 1947 1932
Ties: 1916, 1935, 1974
Sep 1948–Jan 1949
5-Month
44.8°F
(7.1°C)
43.3°F
(6.3°C)
1.5°F
(0.8°C)
92nd Coolest Coolest since: 1948 1977
33rd Warmest Warmest since: 1947 1932
Ties: 1916, 1919, 1955, 1974, 1992
Aug 1948–Jan 1949
6-Month
49.6°F
(9.8°C)
48.3°F
(9.1°C)
1.3°F
(0.7°C)
90th Coolest Coolest since: 1946 1977
35th Warmest Warmest since: 1948 1932
Ties: 1898, 1907, 1909, 2005
Jul 1948–Jan 1949
7-Month
53.3°F
(11.8°C)
52.2°F
(11.2°C)
1.1°F
(0.6°C)
88th Coolest Coolest since: 1948 1977
37th Warmest Warmest since: 1947 1932
Jun 1948–Jan 1949
8-Month
55.5°F
(13.1°C)
54.6°F
(12.6°C)
0.9°F
(0.5°C)
87th Coolest Coolest since: 1948 1918, 1977
38th Warmest Warmest since: 1947 1932
Ties: 1988
May 1948–Jan 1949
9-Month
56.0°F
(13.3°C)
55.4°F
(13.0°C)
0.6°F
(0.3°C)
75th Coolest Coolest since: 1948 1918
50th Warmest Warmest since: 1947 1932
Ties: 1907, 1913, 2018
Apr 1948–Jan 1949
10-Month
56.0°F
(13.3°C)
55.1°F
(12.8°C)
0.9°F
(0.5°C)
90th Coolest Coolest since: 1948 1918
35th Warmest Warmest since: 1947 1932
Ties: 1953, 2005, 2018, 2019
Mar 1948–Jan 1949
11-Month
54.5°F
(12.5°C)
53.7°F
(12.1°C)
0.8°F
(0.4°C)
86th Coolest Coolest since: 1948 1918
39th Warmest Warmest since: 1947 2013
Ties: 1909, 2019
Feb 1948–Jan 1949
12-Month
52.3°F
(11.3°C)
51.6°F
(10.9°C)
0.7°F
(0.4°C)
84th Coolest Coolest since: 1948 1918
41st Warmest Warmest since: 1947 2013
Ties: 1909, 1933, 1958, 2003
Aug 1947–Jan 1949
18-Month
51.5°F
(10.8°C)
50.5°F
(10.3°C)
1.0°F
(0.5°C)
94th Coolest Coolest since: 1948 1918
30th Warmest Warmest since: 1947 2017
Ties: 1943, 1956
Feb 1947–Jan 1949
24-Month
51.4°F
(10.8°C)
51.6°F
(10.9°C)
-0.2°F
(-0.1°C)
47th Coolest Coolest since: 1946 1918
77th Warmest Warmest since: 1948 2013
Ties: 1899, 1946, 1953, 1967, 1983
Feb 1946–Jan 1949
36-Month
52.2°F
(11.2°C)
51.6°F
(10.9°C)
0.6°F
(0.3°C)
87th Coolest Coolest since: 1948 1905
36th Warmest Warmest since: 1947 2013
Ties: 1936, 1942, 1943, 1947
Feb 1945–Jan 1949
48-Month
52.0°F
(11.1°C)
51.6°F
(10.9°C)
0.4°F
(0.2°C)
74th Coolest Coolest since: 1948 1905
48th Warmest Warmest since: 1947 1934, 2002, 2019
Ties: 1939, 1944, 1945, 1947, 1975, 1999
Feb 1944–Jan 1949
60-Month
51.9°F
(11.1°C)
51.6°F
(10.9°C)
0.3°F
(0.2°C)
70th Coolest Coolest since: 1948 1906
51st Warmest Warmest since: 1947 1935, 2003
Ties: 1938, 1945, 1947, 1955, 1975, 1976

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on November 20, 2019 from https://www.ncdc.noaa.gov/cag/