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


Illinois

Average Temperature Rankings, September 2006

View Period (Months):All1234567891011121824364860
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  • Record Coolest
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 2006
1-Month
63.7°F
(17.6°C)
66.2°F
(19.0°C)
-2.5°F
(-1.4°C)
18th Coolest Coolest since: 1995 1918
108th Warmest Warmest since: 2005 1925, 1933
Aug–Sep 2006
2-Month
69.2°F
(20.7°C)
69.8°F
(21.0°C)
-0.6°F
(-0.3°C)
42nd Coolest Coolest since: 2004 1967
84th Warmest Warmest since: 2005 1936
Ties: 1923, 1934, 1943, 1969, 2011, 2012, 2014
Jul–Sep 2006
3-Month
71.8°F
(22.1°C)
71.7°F
(22.1°C)
0.1°F
(0.0°C)
68th Coolest Coolest since: 2004 1967
58th Warmest Warmest since: 2005 1936
Ties: 1932, 1952, 1999, 2017
Jun–Sep 2006
4-Month
71.7°F
(22.1°C)
71.6°F
(22.0°C)
0.1°F
(0.1°C)
59th Coolest Coolest since: 2004 1915, 1924
67th Warmest Warmest since: 2005 1936
Ties: 1956, 1970, 1984
May–Sep 2006
5-Month
69.8°F
(21.0°C)
69.7°F
(20.9°C)
0.1°F
(0.1°C)
60th Coolest Coolest since: 2004 1924
66th Warmest Warmest since: 2005 1936
Ties: 1897
Apr–Sep 2006
6-Month
67.7°F
(19.8°C)
66.7°F
(19.3°C)
1.0°F
(0.5°C)
87th Coolest Coolest since: 2004 1907
39th Warmest Warmest since: 2005 2010
Ties: 1952, 1953, 1999, 2011
Mar–Sep 2006
7-Month
64.0°F
(17.8°C)
62.9°F
(17.2°C)
1.1°F
(0.6°C)
99th Coolest Coolest since: 2004 1924
27th Warmest Warmest since: 2005 2012
Ties: 2011
Feb–Sep 2006
8-Month
59.9°F
(15.5°C)
58.7°F
(14.8°C)
1.2°F
(0.7°C)
97th Coolest Coolest since: 2004 1904
29th Warmest Warmest since: 2005 2012
Ties: 1936, 1959
Jan–Sep 2006
9-Month
57.4°F
(14.1°C)
54.9°F
(12.7°C)
2.5°F
(1.4°C)
116th Coolest Coolest since: 2004 1904, 1912
10th Warmest Warmest since: 2005 2012
Ties: 1938, 1954
Dec 2005–Sep 2006
10-Month
54.3°F
(12.4°C)
52.4°F
(11.3°C)
1.9°F
(1.1°C)
106th Coolest Coolest since: 2004 1904
19th Warmest Warmest since: 2005 2012
Ties: 1931, 1934
Nov 2005–Sep 2006
11-Month
53.4°F
(11.9°C)
51.3°F
(10.7°C)
2.1°F
(1.2°C)
111th Coolest Coolest since: 2004 1904
14th Warmest Warmest since: 2005 2012
Ties: 1999
Oct 2005–Sep 2006
12-Month
53.6°F
(12.0°C)
51.6°F
(10.9°C)
2.0°F
(1.1°C)
111th Coolest Coolest since: 2004 1904
14th Warmest Warmest since: 2005 2012
Ties: 2007
Apr 2005–Sep 2006
18-Month
58.7°F
(14.8°C)
56.6°F
(13.7°C)
2.1°F
(1.1°C)
119th Coolest Coolest since: 2005 1904, 1918
6th Warmest Warmest since: 2002 2012
Ties: 1999
Oct 2004–Sep 2006
24-Month
53.9°F
(12.2°C)
51.6°F
(10.9°C)
2.3°F
(1.3°C)
118th Coolest Coolest since: 2005 1979
6th Warmest Warmest since: 1999 2017
Ties: 1922
Oct 2003–Sep 2006
36-Month
53.5°F
(11.9°C)
51.6°F
(10.9°C)
1.9°F
(1.0°C)
117th Coolest Coolest since: 2005 1979
6th Warmest Warmest since: 2000 2018
Ties: 1933, 2013
Oct 2002–Sep 2006
48-Month
52.9°F
(11.6°C)
51.6°F
(10.9°C)
1.3°F
(0.7°C)
107th Coolest Coolest since: 2004 1905
15th Warmest Warmest since: 2005 2019
Ties: 1956
Oct 2001–Sep 2006
60-Month
53.2°F
(11.8°C)
51.6°F
(10.9°C)
1.6°F
(0.9°C)
118th Coolest Coolest since: 2005 1906
3rd Warmest Warmest since: 2002 2002
Ties: 2008

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published May 2020, retrieved on May 27, 2020 from https://www.ncdc.noaa.gov/cag/