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


Illinois, Climate Division 5. East

Average Temperature Rankings, August 2009

View Period (Months):All1234567891011121824364860
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
August 2009
1-Month
69.8°F
(21.0°C)
72.1°F
(22.3°C)
-2.3°F
(-1.3°C)
20th Coolest Coolest since: 2004 1915
106th Warmest Warmest since: 2008 1947
Ties: 1903, 1907, 1912, 1917, 1965
Jul–Aug 2009
2-Month
69.5°F
(20.8°C)
73.2°F
(22.9°C)
-3.7°F
(-2.1°C)
4th Coolest Coolest since: 1992 1915
122nd Warmest Warmest since: 2008 1936
Jun–Aug 2009
3-Month
70.3°F
(21.3°C)
72.3°F
(22.4°C)
-2.0°F
(-1.1°C)
19th Coolest Coolest since: 2004 1915
107th Warmest Warmest since: 2008 1936
May–Aug 2009
4-Month
68.2°F
(20.1°C)
69.5°F
(20.8°C)
-1.3°F
(-0.7°C)
24th Coolest Coolest since: 1997 1915
102nd Warmest Warmest since: 2008 1934
Ties: 1909, 1912, 1974, 1990
Apr–Aug 2009
5-Month
64.5°F
(18.1°C)
65.5°F
(18.6°C)
-1.0°F
(-0.5°C)
27th Coolest Coolest since: 1997 1907
99th Warmest Warmest since: 2008 1991
Ties: 1982
Mar–Aug 2009
6-Month
60.8°F
(16.0°C)
61.0°F
(16.1°C)
-0.2°F
(-0.1°C)
48th Coolest Coolest since: 2008 1904, 1907
78th Warmest Warmest since: 2007 2012
Ties: 1901, 1943
Feb–Aug 2009
7-Month
56.5°F
(13.6°C)
56.2°F
(13.4°C)
0.3°F
(0.2°C)
67th Coolest Coolest since: 2008 1904
59th Warmest Warmest since: 2007 2012
Jan–Aug 2009
8-Month
51.7°F
(10.9°C)
52.2°F
(11.2°C)
-0.5°F
(-0.3°C)
50th Coolest Coolest since: 2008 1904, 1912
76th Warmest Warmest since: 2007 2012
Ties: 1927
Dec 2008–Aug 2009
9-Month
48.8°F
(9.3°C)
49.5°F
(9.7°C)
-0.7°F
(-0.4°C)
41st Coolest Coolest since: 1997 1904
84th Warmest Warmest since: 2008 2012
Nov 2008–Aug 2009
10-Month
47.9°F
(8.8°C)
48.5°F
(9.2°C)
-0.6°F
(-0.4°C)
37th Coolest Coolest since: 1997 1904
88th Warmest Warmest since: 2008 2012
Ties: 1929, 1971
Oct 2008–Aug 2009
11-Month
48.4°F
(9.1°C)
49.0°F
(9.4°C)
-0.6°F
(-0.3°C)
39th Coolest Coolest since: 2003 1904
86th Warmest Warmest since: 2008 2012
Ties: 1969, 1971, 2003
Sep 2008–Aug 2009
12-Month
49.9°F
(9.9°C)
50.3°F
(10.2°C)
-0.4°F
(-0.3°C)
41st Coolest Coolest since: 1997 1904
84th Warmest Warmest since: 2008 2012
Ties: 1945, 1950, 1962
Mar 2008–Aug 2009
18-Month
53.4°F
(11.9°C)
53.8°F
(12.1°C)
-0.4°F
(-0.2°C)
38th Coolest Coolest since: 1997 1904
87th Warmest Warmest since: 2008 2012
Ties: 1984, 1993, 1996
Sep 2007–Aug 2009
24-Month
50.4°F
(10.2°C)
50.3°F
(10.2°C)
0.1°F
(0.0°C)
64th Coolest Coolest since: 1997 1905
60th Warmest Warmest since: 2008 2017
Ties: 1965, 1981
Sep 2006–Aug 2009
36-Month
50.9°F
(10.5°C)
50.3°F
(10.2°C)
0.6°F
(0.3°C)
84th Coolest Coolest since: 1998 1904
39th Warmest Warmest since: 2008 2018
Ties: 1941, 1950, 1976, 1990, 2010, 2011
Sep 2005–Aug 2009
48-Month
51.4°F
(10.8°C)
50.3°F
(10.2°C)
1.1°F
(0.6°C)
99th Coolest Coolest since: 2004 1905
23rd Warmest Warmest since: 2008 2019
Ties: 1990, 1992, 1993
Sep 2004–Aug 2009
60-Month
51.7°F
(10.9°C)
50.3°F
(10.2°C)
1.4°F
(0.7°C)
110th Coolest Coolest since: 2005 1906
11th Warmest Warmest since: 2008 2002
Ties: 2013

Citing This Page

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