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 2009

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 2009
1-Month
62.8°F
(17.1°C)
62.1°F
(16.7°C)
0.7°F
(0.4°C)
70th Coolest Coolest since: 2008 1917
56th Warmest Warmest since: 2007 2018
Apr–May 2009
2-Month
57.1°F
(13.9°C)
56.8°F
(13.8°C)
0.3°F
(0.1°C)
62nd Coolest Coolest since: 2008 1907
64th Warmest Warmest since: 2007 1896
Mar–May 2009
3-Month
52.6°F
(11.4°C)
51.1°F
(10.6°C)
1.5°F
(0.8°C)
91st Coolest Coolest since: 2008 1960
35th Warmest Warmest since: 2007 2012
Feb–May 2009
4-Month
47.6°F
(8.7°C)
45.7°F
(7.6°C)
1.9°F
(1.1°C)
99th Coolest Coolest since: 2008 1978
27th Warmest Warmest since: 2006 2012
Ties: 1911, 1945, 2001
Jan–May 2009
5-Month
42.2°F
(5.7°C)
41.6°F
(5.3°C)
0.6°F
(0.4°C)
75th Coolest Coolest since: 2008 1978, 1979
51st Warmest Warmest since: 2007 2012
Ties: 1935, 1977
Dec 2008–May 2009
6-Month
39.6°F
(4.2°C)
39.6°F
(4.2°C)
0.0°F
(0.0°C)
59th Coolest Coolest since: 2008 1978
66th Warmest Warmest since: 2007 2012
Ties: 1935, 1956, 2003
Nov 2008–May 2009
7-Month
39.8°F
(4.3°C)
39.7°F
(4.3°C)
0.1°F
(0.0°C)
59th Coolest Coolest since: 2008 1904
66th Warmest Warmest since: 2007 2012
Ties: 1945, 1965
Oct 2008–May 2009
8-Month
41.6°F
(5.3°C)
41.6°F
(5.3°C)
0.0°F
(0.0°C)
55th Coolest Coolest since: 2003 1904, 1978
70th Warmest Warmest since: 2008 2012
Ties: 1900, 1913, 1923, 1927, 1944, 1952
Sep 2008–May 2009
9-Month
44.5°F
(6.9°C)
44.4°F
(6.9°C)
0.1°F
(0.0°C)
66th Coolest Coolest since: 2003 1904
59th Warmest Warmest since: 2008 2012
Ties: 1913, 1945, 1950
Aug 2008–May 2009
10-Month
47.2°F
(8.4°C)
47.3°F
(8.5°C)
-0.1°F
(-0.1°C)
49th Coolest Coolest since: 2001 1904
76th Warmest Warmest since: 2008 2012
Ties: 1907, 1908, 1913, 1915, 1961, 1973, 2001
Jul 2008–May 2009
11-Month
49.7°F
(9.8°C)
49.9°F
(9.9°C)
-0.2°F
(-0.1°C)
50th Coolest Coolest since: 2001 1904
75th Warmest Warmest since: 2008 2012
Ties: 1908, 1913, 1925, 1967, 1973
Jun 2008–May 2009
12-Month
51.6°F
(10.9°C)
51.6°F
(10.9°C)
0.0°F
(0.0°C)
58th Coolest Coolest since: 2001 1904
67th Warmest Warmest since: 2008 2012
Ties: 1986
Dec 2007–May 2009
18-Month
47.3°F
(8.5°C)
47.6°F
(8.7°C)
-0.3°F
(-0.2°C)
48th Coolest Coolest since: 1997 1979
76th Warmest Warmest since: 2008 2017
Ties: 1907, 1910, 1944
Jun 2007–May 2009
24-Month
52.0°F
(11.1°C)
51.6°F
(10.9°C)
0.4°F
(0.2°C)
80th Coolest Coolest since: 1998 1905
44th Warmest Warmest since: 2008 2017
Ties: 1940, 1945, 1973, 1986
Jun 2006–May 2009
36-Month
52.3°F
(11.3°C)
51.6°F
(10.9°C)
0.7°F
(0.4°C)
88th Coolest Coolest since: 2003 1979
35th Warmest Warmest since: 2008 2018
Ties: 1942, 1974, 1976, 2003
Jun 2005–May 2009
48-Month
52.9°F
(11.6°C)
51.6°F
(10.9°C)
1.3°F
(0.7°C)
107th Coolest Coolest since: 2005 1980
15th Warmest Warmest since: 2008 2019
Jun 2004–May 2009
60-Month
52.8°F
(11.6°C)
51.6°F
(10.9°C)
1.2°F
(0.7°C)
110th Coolest Coolest since: 2005 1906, 1907, 1908, 1981
11th Warmest Warmest since: 2008 2002
Ties: 1934, 2004

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2019, retrieved on September 21, 2019 from https://www.ncdc.noaa.gov/cag/