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


Illinois, Climate Division 1. Northwest

Average Temperature Rankings, May 2009

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 2009
1-Month
60.4°F
(15.8°C)
59.7°F
(15.4°C)
0.7°F
(0.4°C)
70th Coolest Coolest since: 2008 1907
56th Warmest Warmest since: 2007 1977
Ties: 1958
Apr–May 2009
2-Month
54.3°F
(12.4°C)
54.0°F
(12.2°C)
0.3°F
(0.2°C)
65th Coolest Coolest since: 2008 1907
61st Warmest Warmest since: 2007 1977
Ties: 1960
Mar–May 2009
3-Month
49.1°F
(9.5°C)
47.8°F
(8.8°C)
1.3°F
(0.7°C)
81st Coolest Coolest since: 2008 1960
45th Warmest Warmest since: 2007 2012
Ties: 1959, 2005
Feb–May 2009
4-Month
43.7°F
(6.5°C)
41.9°F
(5.5°C)
1.8°F
(1.0°C)
94th Coolest Coolest since: 2008 1947
32nd Warmest Warmest since: 2006 2012
Jan–May 2009
5-Month
37.7°F
(3.2°C)
37.6°F
(3.1°C)
0.1°F
(0.1°C)
70th Coolest Coolest since: 2008 1912
56th Warmest Warmest since: 2007 2012
Ties: 1910, 1915, 1956, 2011, 2018
Dec 2008–May 2009
6-Month
34.7°F
(1.5°C)
35.4°F
(1.9°C)
-0.7°F
(-0.4°C)
41st Coolest Coolest since: 2008 1979
84th Warmest Warmest since: 2007 2012
Nov 2008–May 2009
7-Month
35.3°F
(1.8°C)
35.7°F
(2.1°C)
-0.4°F
(-0.3°C)
48th Coolest Coolest since: 2008 1904
77th Warmest Warmest since: 2007 2012
Ties: 1897, 1900, 1958, 1986
Oct 2008–May 2009
8-Month
37.3°F
(2.9°C)
37.7°F
(3.2°C)
-0.4°F
(-0.3°C)
42nd Coolest Coolest since: 1997 1912
83rd Warmest Warmest since: 2008 2012
Ties: 1947, 1952
Sep 2008–May 2009
9-Month
40.3°F
(4.6°C)
40.5°F
(4.7°C)
-0.2°F
(-0.1°C)
50th Coolest Coolest since: 1997 1904
75th Warmest Warmest since: 2008 2012
Ties: 1944, 1966, 1968
Aug 2008–May 2009
10-Month
43.3°F
(6.3°C)
43.6°F
(6.4°C)
-0.3°F
(-0.1°C)
45th Coolest Coolest since: 1997 1904
80th Warmest Warmest since: 2008 2012
Ties: 1927, 1930, 1966
Jul 2008–May 2009
11-Month
46.0°F
(7.8°C)
46.3°F
(7.9°C)
-0.3°F
(-0.1°C)
45th Coolest Coolest since: 1997 1904
80th Warmest Warmest since: 2008 2012
Ties: 1927, 1930, 1967, 1980, 2019
Jun 2008–May 2009
12-Month
48.0°F
(8.9°C)
48.2°F
(9.0°C)
-0.2°F
(-0.1°C)
49th Coolest Coolest since: 1997 1904
76th Warmest Warmest since: 2008 2012
Ties: 1940, 1969, 1980
Dec 2007–May 2009
18-Month
43.4°F
(6.3°C)
44.0°F
(6.7°C)
-0.6°F
(-0.4°C)
36th Coolest Coolest since: 1997 1918
88th Warmest Warmest since: 2008 2017
Ties: 1903, 1908, 1944
Jun 2007–May 2009
24-Month
48.4°F
(9.1°C)
48.3°F
(9.1°C)
0.1°F
(0.0°C)
67th Coolest Coolest since: 1997 1905
57th Warmest Warmest since: 2008 2017
Ties: 1975, 1986, 2010
Jun 2006–May 2009
36-Month
48.8°F
(9.3°C)
48.2°F
(9.0°C)
0.6°F
(0.3°C)
83rd Coolest Coolest since: 1998 1905, 1918, 1979
40th Warmest Warmest since: 2008 2000
Ties: 1974, 1985
Jun 2005–May 2009
48-Month
49.5°F
(9.7°C)
48.2°F
(9.0°C)
1.3°F
(0.7°C)
107th Coolest Coolest since: 2004 1980
15th Warmest Warmest since: 2008 2001, 2002, 2007
Ties: 1992, 2004
Jun 2004–May 2009
60-Month
49.5°F
(9.7°C)
48.1°F
(8.9°C)
1.4°F
(0.8°C)
110th Coolest Coolest since: 2005 1907, 1908
11th Warmest Warmest since: 2008 2002
Ties: 1934, 1991, 2005, 2012

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published September 2019, retrieved on September 17, 2019 from https://www.ncdc.noaa.gov/cag/