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 December 2019. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, April 2009

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Coolest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
April 2009
1-Month
51.4°F
(10.8°C)
51.5°F
(10.8°C)
-0.1°F
(0.0°C)
52nd Coolest Coolest since: 2008 1907
74th Warmest Warmest since: 2008 2010
Ties: 1989, 2008
Mar–Apr 2009
2-Month
47.5°F
(8.6°C)
45.7°F
(7.6°C)
1.8°F
(1.0°C)
91st Coolest Coolest since: 2008 1926
35th Warmest Warmest since: 2007 2012
Ties: 1908
Feb–Apr 2009
3-Month
42.5°F
(5.8°C)
40.2°F
(4.6°C)
2.3°F
(1.2°C)
97th Coolest Coolest since: 2008 1978
29th Warmest Warmest since: 2006 2012
Ties: 1955
Jan–Apr 2009
4-Month
37.0°F
(2.8°C)
36.4°F
(2.4°C)
0.6°F
(0.4°C)
72nd Coolest Coolest since: 2008 1912
54th Warmest Warmest since: 2007 2012
Ties: 1907, 1909, 1944
Dec 2008–Apr 2009
5-Month
35.0°F
(1.7°C)
35.1°F
(1.7°C)
-0.1°F
(0.0°C)
55th Coolest Coolest since: 2008 1978
70th Warmest Warmest since: 2007 2012
Nov 2008–Apr 2009
6-Month
36.0°F
(2.2°C)
36.0°F
(2.2°C)
0.0°F
(0.0°C)
57th Coolest Coolest since: 2008 1904
68th Warmest Warmest since: 2008 2012
Ties: 1897, 1898, 1913, 1930, 2003, 2008
Oct 2008–Apr 2009
7-Month
38.6°F
(3.7°C)
38.7°F
(3.7°C)
-0.1°F
(0.0°C)
54th Coolest Coolest since: 2003 1904
71st Warmest Warmest since: 2008 2012
Ties: 1934, 1988
Sep 2008–Apr 2009
8-Month
42.2°F
(5.7°C)
42.2°F
(5.7°C)
0.0°F
(0.0°C)
54th Coolest Coolest since: 2003 1904
71st Warmest Warmest since: 2008 2017
Ties: 1896, 1908, 1913, 1915, 1950, 2003
Aug 2008–Apr 2009
9-Month
45.5°F
(7.5°C)
45.7°F
(7.6°C)
-0.2°F
(-0.1°C)
49th Coolest Coolest since: 2001 1904
76th Warmest Warmest since: 2008 2017
Ties: 1900, 1903, 1908, 1913, 1956
Jul 2008–Apr 2009
10-Month
48.4°F
(9.1°C)
48.7°F
(9.3°C)
-0.3°F
(-0.2°C)
48th Coolest Coolest since: 2001 1904
77th Warmest Warmest since: 2008 2012
Ties: 1896, 1900, 1903, 1908, 1910, 1947
Jun 2008–Apr 2009
11-Month
50.6°F
(10.3°C)
50.7°F
(10.4°C)
-0.1°F
(-0.1°C)
55th Coolest Coolest since: 2001 1904
70th Warmest Warmest since: 2008 2017
Ties: 1900, 1927, 1961, 1973
May 2008–Apr 2009
12-Month
51.3°F
(10.7°C)
51.6°F
(10.9°C)
-0.3°F
(-0.2°C)
44th Coolest Coolest since: 2001 1918
81st Warmest Warmest since: 2008 2012, 2017
Ties: 1910, 1940, 1960, 2001
Nov 2007–Apr 2009
18-Month
46.2°F
(7.9°C)
46.4°F
(8.0°C)
-0.2°F
(-0.1°C)
47th Coolest Coolest since: 1997 1905
77th Warmest Warmest since: 2008 2017
Ties: 1911, 1919, 1958, 1965, 1975
May 2007–Apr 2009
24-Month
52.2°F
(11.2°C)
51.6°F
(10.9°C)
0.6°F
(0.3°C)
84th Coolest Coolest since: 1998 1905
40th Warmest Warmest since: 2008 2017
Ties: 1940, 1950
May 2006–Apr 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: 1998 1979
35th Warmest Warmest since: 2008 2018
Ties: 1924, 1940, 1943, 1974, 1976, 1987, 1993
May 2005–Apr 2009
48-Month
52.8°F
(11.6°C)
51.6°F
(10.9°C)
1.2°F
(0.7°C)
105th Coolest Coolest since: 2004 1980
17th Warmest Warmest since: 2008 2019
Ties: 1955, 2012
May 2004–Apr 2009
60-Month
52.9°F
(11.6°C)
51.6°F
(10.9°C)
1.3°F
(0.7°C)
114th Coolest Coolest since: 2007 1906
7th Warmest Warmest since: 2008 1935, 2002
Ties: 1957, 2007, 2012

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2020, retrieved on January 20, 2020 from https://www.ncdc.noaa.gov/cag/