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


Illinois

Average Temperature Rankings, September 2008

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 2008
1-Month
67.1°F
(19.5°C)
66.2°F
(19.0°C)
0.9°F
(0.5°C)
73rd Coolest Coolest since: 2006 1918
53rd Warmest Warmest since: 2007 1925, 1933
Aug–Sep 2008
2-Month
69.4°F
(20.8°C)
69.8°F
(21.0°C)
-0.4°F
(-0.2°C)
52nd Coolest Coolest since: 2006 1967
74th Warmest Warmest since: 2007 1936
Ties: 1912, 1986
Jul–Sep 2008
3-Month
71.1°F
(21.7°C)
71.7°F
(22.1°C)
-0.6°F
(-0.4°C)
44th Coolest Coolest since: 2004 1967
82nd Warmest Warmest since: 2007 1936
Ties: 1968
Jun–Sep 2008
4-Month
71.6°F
(22.0°C)
71.6°F
(22.0°C)
0.0°F
(0.0°C)
55th Coolest Coolest since: 2004 1915, 1924
71st Warmest Warmest since: 2007 1936
Ties: 1935, 1957, 1990
May–Sep 2008
5-Month
69.1°F
(20.6°C)
69.7°F
(20.9°C)
-0.6°F
(-0.3°C)
35th Coolest Coolest since: 2004 1924
91st Warmest Warmest since: 2007 1936
Ties: 1920, 1963, 1969, 1979, 1982, 1990, 2014
Apr–Sep 2008
6-Month
66.2°F
(19.0°C)
66.7°F
(19.3°C)
-0.5°F
(-0.3°C)
40th Coolest Coolest since: 2003 1907
86th Warmest Warmest since: 2007 2010
Ties: 1923, 1994
Mar–Sep 2008
7-Month
62.3°F
(16.8°C)
62.9°F
(17.2°C)
-0.6°F
(-0.4°C)
39th Coolest Coolest since: 1997 1924
87th Warmest Warmest since: 2007 2012
Ties: 1899
Feb–Sep 2008
8-Month
57.7°F
(14.3°C)
58.6°F
(14.8°C)
-0.9°F
(-0.5°C)
28th Coolest Coolest since: 1996 1904
98th Warmest Warmest since: 2007 2012
Ties: 1905, 1965, 1966
Jan–Sep 2008
9-Month
54.3°F
(12.4°C)
54.9°F
(12.7°C)
-0.6°F
(-0.3°C)
39th Coolest Coolest since: 2003 1904, 1912
87th Warmest Warmest since: 2007 2012
Ties: 1903, 1923, 1965, 1972, 1985
Dec 2007–Sep 2008
10-Month
51.9°F
(11.1°C)
52.4°F
(11.3°C)
-0.5°F
(-0.2°C)
41st Coolest Coolest since: 2001 1904
84th Warmest Warmest since: 2007 2012
Ties: 1916, 1923, 1943, 1966
Nov 2007–Sep 2008
11-Month
51.0°F
(10.6°C)
51.3°F
(10.7°C)
-0.3°F
(-0.1°C)
45th Coolest Coolest since: 2003 1904
80th Warmest Warmest since: 2007 2012
Ties: 1910, 1936, 1956, 1965
Oct 2007–Sep 2008
12-Month
51.8°F
(11.0°C)
51.7°F
(10.9°C)
0.1°F
(0.1°C)
65th Coolest Coolest since: 2003 1904
60th Warmest Warmest since: 2007 2012
Ties: 1908, 1947, 1973
Apr 2007–Sep 2008
18-Month
57.4°F
(14.1°C)
56.7°F
(13.7°C)
0.7°F
(0.4°C)
89th Coolest Coolest since: 2004 1904, 1918
36th Warmest Warmest since: 2007 2012
Ties: 1938, 1941
Oct 2006–Sep 2008
24-Month
52.7°F
(11.5°C)
51.7°F
(10.9°C)
1.0°F
(0.6°C)
100th Coolest Coolest since: 2004 1979
24th Warmest Warmest since: 2007 2017
Ties: 2003
Oct 2005–Sep 2008
36-Month
53.0°F
(11.7°C)
51.6°F
(10.9°C)
1.4°F
(0.8°C)
107th Coolest Coolest since: 2005 1979
16th Warmest Warmest since: 2007 2018
Ties: 2001
Oct 2004–Sep 2008
48-Month
53.3°F
(11.8°C)
51.6°F
(10.9°C)
1.7°F
(0.9°C)
116th Coolest Coolest since: 2006 1905
6th Warmest Warmest since: 2007 2019
Ties: 1934, 2001
Oct 2003–Sep 2008
60-Month
53.2°F
(11.8°C)
51.6°F
(10.9°C)
1.6°F
(0.9°C)
118th Coolest Coolest since: 2007 1906
3rd Warmest Warmest since: 2006 2002
Ties: 2006

Citing This Page

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