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 May 2020. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, May 2003

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
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)
47th 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)
69th 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)
79th 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
67th 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
77th 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
67th 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
74th 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
83rd 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
70th 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
68th 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
53rd 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
51st 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)
100th 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)
108th 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
36th 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
17th 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
5th Warmest Warmest since: 2002 2020
Ties: 2008, 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published June 2020, retrieved on July 4, 2020 from https://www.ncdc.noaa.gov/cag/