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


Illinois

Average Temperature Rankings, April 2015

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
April 2015
1-Month
54.3°F
(12.4°C)
51.5°F
(10.8°C)
2.8°F
(1.6°C)
101st Coolest Coolest since: 2014 1907
25th Warmest Warmest since: 2012 2010
Ties: 1999
Mar–Apr 2015
2-Month
46.3°F
(7.9°C)
45.7°F
(7.6°C)
0.6°F
(0.3°C)
73rd Coolest Coolest since: 2014 1926
53rd Warmest Warmest since: 2012 2012
Ties: 1999
Feb–Apr 2015
3-Month
37.3°F
(2.9°C)
40.1°F
(4.5°C)
-2.8°F
(-1.6°C)
21st Coolest Coolest since: 2014 1978
105th Warmest Warmest since: 2013 2012
Ties: 1926
Jan–Apr 2015
4-Month
34.4°F
(1.3°C)
36.4°F
(2.4°C)
-2.0°F
(-1.1°C)
24th Coolest Coolest since: 2014 1912
102nd Warmest Warmest since: 2013 2012
Dec 2014–Apr 2015
5-Month
34.3°F
(1.3°C)
35.1°F
(1.7°C)
-0.8°F
(-0.4°C)
36th Coolest Coolest since: 2014 1978
89th Warmest Warmest since: 2013 2012
Ties: 1993, 2011
Nov 2014–Apr 2015
6-Month
34.4°F
(1.3°C)
36.1°F
(2.3°C)
-1.7°F
(-1.0°C)
23rd Coolest Coolest since: 2014 1904
102nd Warmest Warmest since: 2013 2012
Ties: 1901
Oct 2014–Apr 2015
7-Month
37.2°F
(2.9°C)
38.7°F
(3.7°C)
-1.5°F
(-0.8°C)
22nd Coolest Coolest since: 2014 1904
103rd Warmest Warmest since: 2013 2012
Sep 2014–Apr 2015
8-Month
40.6°F
(4.8°C)
42.1°F
(5.6°C)
-1.5°F
(-0.8°C)
18th Coolest Coolest since: 2014 1904
107th Warmest Warmest since: 2013 2017
Ties: 1960, 1963, 1984
Aug 2014–Apr 2015
9-Month
44.3°F
(6.8°C)
45.6°F
(7.6°C)
-1.3°F
(-0.8°C)
18th Coolest Coolest since: 2014 1904
107th Warmest Warmest since: 2013 2017
Ties: 1968, 1993
Jul 2014–Apr 2015
10-Month
46.9°F
(8.3°C)
48.6°F
(9.2°C)
-1.7°F
(-0.9°C)
14th Coolest Coolest since: 2014 1904
111th Warmest Warmest since: 2013 2012
Ties: 1926
Jun 2014–Apr 2015
11-Month
49.3°F
(9.6°C)
50.7°F
(10.4°C)
-1.4°F
(-0.8°C)
15th Coolest Coolest since: 2014 1904
110th Warmest Warmest since: 2013 2017
Ties: 1963, 1968
May 2014–Apr 2015
12-Month
50.5°F
(10.3°C)
51.6°F
(10.9°C)
-1.1°F
(-0.6°C)
19th Coolest Coolest since: 2014 1918
106th Warmest Warmest since: 2013 2012, 2017
Ties: 1920, 1975
Nov 2013–Apr 2015
18-Month
44.2°F
(6.8°C)
46.4°F
(8.0°C)
-2.2°F
(-1.2°C)
5th Coolest Coolest since: 1979 1905
119th Warmest Warmest since: 2014 2017
May 2013–Apr 2015
24-Month
50.0°F
(10.0°C)
51.6°F
(10.9°C)
-1.6°F
(-0.9°C)
6th Coolest Coolest since: 1979 1905
118th Warmest Warmest since: 2014 2017
May 2012–Apr 2015
36-Month
51.0°F
(10.6°C)
51.6°F
(10.9°C)
-0.6°F
(-0.3°C)
21st Coolest Coolest since: 1980 1979
102nd Warmest Warmest since: 2014 2018
Ties: 1899, 1900, 1901, 1927, 1928, 1952, 1964, 1977
May 2011–Apr 2015
48-Month
52.2°F
(11.2°C)
51.6°F
(10.9°C)
0.6°F
(0.3°C)
87th Coolest Coolest since: 2011 1980
35th Warmest Warmest since: 2014 2019
Ties: 1937, 1941, 1993, 2011
May 2010–Apr 2015
60-Month
52.3°F
(11.3°C)
51.6°F
(10.9°C)
0.7°F
(0.4°C)
89th Coolest Coolest since: 2011 1906
32nd Warmest Warmest since: 2014 1935, 2002
Ties: 1925, 1933, 1938, 1939, 1993

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on December 8, 2019 from https://www.ncdc.noaa.gov/cag/