Climate at a Glance

Divisional 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 March 2021. For more information, please see Climatological Rankings.


Illinois, Climate Division 8. Southwest

Average Temperature Rankings, May 2009

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
May 2009
1-Month
65.3°F
(18.5°C)
65.1°F
(18.4°C)
0.2°F
(0.1°C)
59th Coolest Coolest since: 2008 1917, 1924
68th Warmest Warmest since: 2007 2018
Ties: 1952
Apr–May 2009
2-Month
60.3°F
(15.7°C)
60.2°F
(15.7°C)
0.1°F
(0.0°C)
54th Coolest Coolest since: 2008 1907
73rd Warmest Warmest since: 2007 1896
Ties: 1937, 1960
Mar–May 2009
3-Month
56.5°F
(13.6°C)
55.0°F
(12.8°C)
1.5°F
(0.8°C)
92nd Coolest Coolest since: 2008 1960
35th Warmest Warmest since: 2007 2012
Ties: 1942
Feb–May 2009
4-Month
51.8°F
(11.0°C)
49.9°F
(9.9°C)
1.9°F
(1.1°C)
100th Coolest Coolest since: 2008 1978
27th Warmest Warmest since: 2006 2012
Jan–May 2009
5-Month
47.2°F
(8.4°C)
46.2°F
(7.9°C)
1.0°F
(0.5°C)
86th Coolest Coolest since: 2008 1978
41st Warmest Warmest since: 2007 2012
Dec 2008–May 2009
6-Month
44.9°F
(7.2°C)
44.3°F
(6.8°C)
0.6°F
(0.4°C)
76th Coolest Coolest since: 2008 1978
50th Warmest Warmest since: 2007 2012
Ties: 1935, 1944
Nov 2008–May 2009
7-Month
44.7°F
(7.1°C)
44.3°F
(6.8°C)
0.4°F
(0.3°C)
69th Coolest Coolest since: 2008 1978
57th Warmest Warmest since: 2007 2012
Oct 2008–May 2009
8-Month
46.3°F
(7.9°C)
46.0°F
(7.8°C)
0.3°F
(0.1°C)
69th Coolest Coolest since: 2003 1978
57th Warmest Warmest since: 2008 2012
Ties: 1916, 1923, 1952
Sep 2008–May 2009
9-Month
48.9°F
(9.4°C)
48.6°F
(9.2°C)
0.3°F
(0.2°C)
74th Coolest Coolest since: 2003 1978
52nd Warmest Warmest since: 2008 2012
Ties: 1903, 1908, 1967, 1981, 1985, 1990, 2010, 2011
Aug 2008–May 2009
10-Month
51.4°F
(10.8°C)
51.3°F
(10.7°C)
0.1°F
(0.1°C)
58th Coolest Coolest since: 2003 1978
68th Warmest Warmest since: 2008 2012
Ties: 1907, 1988, 1989, 2010
Jul 2008–May 2009
11-Month
53.8°F
(12.1°C)
53.8°F
(12.1°C)
0.0°F
(0.0°C)
59th Coolest Coolest since: 2001 1918
67th Warmest Warmest since: 2008 2012
Ties: 1985
Jun 2008–May 2009
12-Month
55.6°F
(13.1°C)
55.4°F
(13.0°C)
0.2°F
(0.1°C)
63rd Coolest Coolest since: 2001 1904, 1918
63rd Warmest Warmest since: 2008 2012
Ties: 1901, 1944, 1945, 1967
Dec 2007–May 2009
18-Month
51.7°F
(10.9°C)
51.7°F
(10.9°C)
0.0°F
(0.0°C)
56th Coolest Coolest since: 1997 1979
69th Warmest Warmest since: 2008 2017
Ties: 1908, 1928, 1944, 1973, 1993, 1996
Jun 2007–May 2009
24-Month
56.0°F
(13.3°C)
55.4°F
(13.0°C)
0.6°F
(0.3°C)
90th Coolest Coolest since: 2002 1905, 1978
35th Warmest Warmest since: 2008 2017
Ties: 2011
Jun 2006–May 2009
36-Month
56.2°F
(13.4°C)
55.3°F
(12.9°C)
0.9°F
(0.5°C)
98th Coolest Coolest since: 2005 1979
26th Warmest Warmest since: 2008 2018
Ties: 1922, 1943, 1974, 1999, 2005
Jun 2005–May 2009
48-Month
56.7°F
(13.7°C)
55.4°F
(13.0°C)
1.3°F
(0.7°C)
110th Coolest Coolest since: 2006 1980
13th Warmest Warmest since: 2008 2019
Ties: 1955, 2001, 2014
Jun 2004–May 2009
60-Month
56.6°F
(13.7°C)
55.3°F
(12.9°C)
1.3°F
(0.8°C)
112th Coolest Coolest since: 2007 1979, 1980, 1981
10th Warmest Warmest since: 2008 2020
Ties: 1934, 1936, 2003, 2007, 2016

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published April 2021, retrieved on April 20, 2021 from https://www.ncdc.noaa.gov/cag/