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


Illinois

Average Temperature Rankings, May 2003

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  • Record Warmest
Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 2003
1-Month
61.1°F
(16.2°C)
62.1°F
(16.7°C)
-1.0°F
(-0.5°C)
46th Coolest Coolest since: 2002 1917
80th Warmest Warmest since: 2001 2018
Apr–May 2003
2-Month
57.3°F
(14.1°C)
56.8°F
(13.8°C)
0.5°F
(0.3°C)
68th Coolest Coolest since: 2002 1907
58th Warmest Warmest since: 2001 1896
Ties: 1958
Mar–May 2003
3-Month
52.1°F
(11.2°C)
51.2°F
(10.7°C)
0.9°F
(0.5°C)
78th Coolest Coolest since: 2002 1960
48th Warmest Warmest since: 2001 2012
Feb–May 2003
4-Month
45.6°F
(7.6°C)
45.6°F
(7.6°C)
0.0°F
(0.0°C)
60th Coolest Coolest since: 1997 1978
66th Warmest Warmest since: 2002 2012
Jan–May 2003
5-Month
41.1°F
(5.1°C)
41.6°F
(5.3°C)
-0.5°F
(-0.2°C)
50th Coolest Coolest since: 1997 1978, 1979
76th Warmest Warmest since: 2002 2012
Dec 2002–May 2003
6-Month
39.6°F
(4.2°C)
39.6°F
(4.2°C)
0.0°F
(0.0°C)
59th Coolest Coolest since: 2001 1978
66th Warmest Warmest since: 2002 2012
Ties: 1935, 1956, 2009
Nov 2002–May 2003
7-Month
39.6°F
(4.2°C)
39.8°F
(4.3°C)
-0.2°F
(-0.1°C)
52nd Coolest Coolest since: 2001 1904
73rd Warmest Warmest since: 2002 2012
Ties: 1952, 2011, 2019
Oct 2002–May 2003
8-Month
41.2°F
(5.1°C)
41.7°F
(5.4°C)
-0.5°F
(-0.3°C)
43rd Coolest Coolest since: 1997 1904, 1978
82nd Warmest Warmest since: 2002 2012
Sep 2002–May 2003
9-Month
44.3°F
(6.8°C)
44.4°F
(6.9°C)
-0.1°F
(-0.1°C)
56th Coolest Coolest since: 2001 1904
69th Warmest Warmest since: 2002 2012
Aug 2002–May 2003
10-Month
47.4°F
(8.6°C)
47.3°F
(8.5°C)
0.1°F
(0.1°C)
58th Coolest Coolest since: 2001 1904
67th Warmest Warmest since: 2002 2012
Ties: 1903, 1927, 1933, 1950, 1956
Jul 2002–May 2003
11-Month
50.2°F
(10.1°C)
49.9°F
(9.9°C)
0.3°F
(0.2°C)
73rd Coolest Coolest since: 2001 1904
52nd Warmest Warmest since: 2002 2012
Ties: 1909, 1950, 1990
Jun 2002–May 2003
12-Month
52.1°F
(11.2°C)
51.6°F
(10.9°C)
0.5°F
(0.3°C)
75th Coolest Coolest since: 2001 1904
50th Warmest Warmest since: 2002 2012
Ties: 1915, 1945
Dec 2001–May 2003
18-Month
48.9°F
(9.4°C)
47.6°F
(8.7°C)
1.3°F
(0.7°C)
99th Coolest Coolest since: 2002 1979
25th Warmest Warmest since: 2000 2017
Jun 2001–May 2003
24-Month
52.9°F
(11.6°C)
51.7°F
(10.9°C)
1.2°F
(0.7°C)
107th Coolest Coolest since: 2002 1905
17th Warmest Warmest since: 2000 2017
Ties: 1939, 1988
Jun 2000–May 2003
36-Month
52.3°F
(11.3°C)
51.6°F
(10.9°C)
0.7°F
(0.4°C)
88th Coolest Coolest since: 1998 1979
35th Warmest Warmest since: 2002 2018
Ties: 1942, 1974, 1976, 2009
Jun 1999–May 2003
48-Month
52.8°F
(11.6°C)
51.6°F
(10.9°C)
1.2°F
(0.7°C)
106th Coolest Coolest since: 1999 1980
16th Warmest Warmest since: 2002 2019
Ties: 1955, 1992, 2005
Jun 1998–May 2003
60-Month
53.1°F
(11.7°C)
51.6°F
(10.9°C)
1.5°F
(0.8°C)
117th Coolest Coolest since: 2001 1906, 1907, 1908, 1981
4th Warmest Warmest since: 2002 2002
Ties: 2008, 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2019, retrieved on September 16, 2019 from https://www.ncdc.noaa.gov/cag/