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


Illinois

Average Temperature Rankings, May 2018

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 2018
1-Month
70.7°F
(21.5°C)
62.1°F
(16.7°C)
8.6°F
(4.8°C)
125th Coolest Coolest since: 2017 1917
1st Warmest Warmest to Date 2018
Apr–May 2018
2-Month
57.8°F
(14.3°C)
56.9°F
(13.8°C)
0.9°F
(0.5°C)
81st Coolest Coolest since: 2016 1907
45th Warmest Warmest since: 2017 1896
Ties: 1902, 1963, 1969, 1981
Mar–May 2018
3-Month
51.6°F
(10.9°C)
51.2°F
(10.7°C)
0.4°F
(0.2°C)
70th Coolest Coolest since: 2014 1960
56th Warmest Warmest since: 2017 2012
Ties: 1968, 1992, 1994
Feb–May 2018
4-Month
46.6°F
(8.1°C)
45.6°F
(7.6°C)
1.0°F
(0.5°C)
82nd Coolest Coolest since: 2015 1978
44th Warmest Warmest since: 2017 2012
Ties: 1903, 1915
Jan–May 2018
5-Month
42.1°F
(5.6°C)
41.6°F
(5.3°C)
0.5°F
(0.3°C)
72nd Coolest Coolest since: 2015 1978, 1979
54th Warmest Warmest since: 2017 2012
Ties: 1956
Dec 2017–May 2018
6-Month
40.1°F
(4.5°C)
39.6°F
(4.2°C)
0.5°F
(0.3°C)
72nd Coolest Coolest since: 2015 1978
53rd Warmest Warmest since: 2017 2012
Ties: 1950, 1986, 1988
Nov 2017–May 2018
7-Month
40.3°F
(4.6°C)
39.7°F
(4.3°C)
0.6°F
(0.3°C)
75th Coolest Coolest since: 2015 1904
50th Warmest Warmest since: 2017 2012
Ties: 1933, 1986
Oct 2017–May 2018
8-Month
42.6°F
(5.9°C)
41.7°F
(5.4°C)
0.9°F
(0.5°C)
90th Coolest Coolest since: 2015 1904, 1978
35th Warmest Warmest since: 2017 2012
Ties: 1903, 1914, 1949, 1953, 1990, 2010
Sep 2017–May 2018
9-Month
45.5°F
(7.5°C)
44.4°F
(6.9°C)
1.1°F
(0.6°C)
98th Coolest Coolest since: 2015 1904
27th Warmest Warmest since: 2017 2012
Ties: 1934, 1949, 1957, 1983
Aug 2017–May 2018
10-Month
48.0°F
(8.9°C)
47.3°F
(8.5°C)
0.7°F
(0.4°C)
85th Coolest Coolest since: 2015 1904
40th Warmest Warmest since: 2017 2012
Ties: 1896, 1898, 1983
Jul 2017–May 2018
11-Month
50.5°F
(10.3°C)
49.8°F
(9.9°C)
0.7°F
(0.4°C)
85th Coolest Coolest since: 2015 1904
40th Warmest Warmest since: 2017 2012
Ties: 1948, 1964, 1983, 1985, 2008, 2011
Jun 2017–May 2018
12-Month
52.4°F
(11.3°C)
51.7°F
(10.9°C)
0.7°F
(0.4°C)
85th Coolest Coolest since: 2015 1904
40th Warmest Warmest since: 2017 2012
Ties: 1949, 1964, 2008
Dec 2016–May 2018
18-Month
49.6°F
(9.8°C)
47.6°F
(8.7°C)
2.0°F
(1.1°C)
112th Coolest Coolest since: 2016 1979
12th Warmest Warmest since: 2017 2017
Ties: 1939
Jun 2016–May 2018
24-Month
54.0°F
(12.2°C)
51.6°F
(10.9°C)
2.4°F
(1.3°C)
119th Coolest Coolest since: 2016 1905
5th Warmest Warmest since: 2017 2017
Jun 2015–May 2018
36-Month
54.2°F
(12.3°C)
51.6°F
(10.9°C)
2.6°F
(1.4°C)
122nd Coolest Coolest since: 2017 1979
1st Warmest Warmest to Date 2018
Jun 2014–May 2018
48-Month
53.3°F
(11.8°C)
51.6°F
(10.9°C)
1.7°F
(0.9°C)
119th Coolest Coolest since: 2017 1980
3rd Warmest Warmest since: 2007 2019
Ties: 2002, 2007
Jun 2013–May 2018
60-Month
52.6°F
(11.4°C)
51.6°F
(10.9°C)
1.0°F
(0.5°C)
103rd Coolest Coolest since: 2017 1906, 1907, 1908, 1981
18th Warmest Warmest since: 2017 2002
Ties: 1936, 1956, 2000, 2010, 2017

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published July 2019, retrieved on July 16, 2019 from https://www.ncdc.noaa.gov/cag/