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


Illinois, Climate Division 8. Southwest

Average Temperature Rankings, May 2018

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 2018
1-Month
73.1°F
(22.8°C)
65.1°F
(18.4°C)
8.0°F
(4.4°C)
125th Coolest Coolest since: 2017 1917, 1924
1st Warmest Warmest to Date 2018
Apr–May 2018
2-Month
61.4°F
(16.3°C)
60.2°F
(15.7°C)
1.2°F
(0.6°C)
88th Coolest Coolest since: 2016 1907
38th Warmest Warmest since: 2017 1896
Ties: 1938, 1948, 1974
Mar–May 2018
3-Month
55.5°F
(13.1°C)
55.0°F
(12.8°C)
0.5°F
(0.3°C)
70th Coolest Coolest since: 2014 1960
56th Warmest Warmest since: 2017 2012
Ties: 1953, 1957, 2019
Feb–May 2018
4-Month
51.4°F
(10.8°C)
50.0°F
(10.0°C)
1.4°F
(0.8°C)
88th Coolest Coolest since: 2015 1978
38th Warmest Warmest since: 2017 2012
Ties: 1908, 1990
Jan–May 2018
5-Month
46.7°F
(8.2°C)
46.1°F
(7.8°C)
0.6°F
(0.4°C)
71st Coolest Coolest since: 2015 1978
55th Warmest Warmest since: 2017 2012
Ties: 1903
Dec 2017–May 2018
6-Month
44.8°F
(7.1°C)
44.3°F
(6.8°C)
0.5°F
(0.3°C)
73rd Coolest Coolest since: 2015 1978
52nd Warmest Warmest since: 2017 2012
Ties: 1909, 1983, 1985
Nov 2017–May 2018
7-Month
45.0°F
(7.2°C)
44.3°F
(6.8°C)
0.7°F
(0.4°C)
79th Coolest Coolest since: 2015 1978
46th Warmest Warmest since: 2017 2012
Ties: 1941, 1983, 1988, 1990
Oct 2017–May 2018
8-Month
47.0°F
(8.3°C)
46.0°F
(7.8°C)
1.0°F
(0.5°C)
90th Coolest Coolest since: 2015 1978
35th Warmest Warmest since: 2017 2012
Ties: 1903, 1922, 1964
Sep 2017–May 2018
9-Month
49.6°F
(9.8°C)
48.5°F
(9.2°C)
1.1°F
(0.6°C)
93rd Coolest Coolest since: 2015 1978
32nd Warmest Warmest since: 2017 2012
Ties: 1925, 1938, 1941
Aug 2017–May 2018
10-Month
52.0°F
(11.1°C)
51.3°F
(10.7°C)
0.7°F
(0.4°C)
84th Coolest Coolest since: 2015 1978
41st Warmest Warmest since: 2017 2012
Ties: 1909, 1937, 1953, 2011
Jul 2017–May 2018
11-Month
54.5°F
(12.5°C)
53.7°F
(12.1°C)
0.8°F
(0.4°C)
86th Coolest Coolest since: 2015 1918
39th Warmest Warmest since: 2017 2012
Ties: 1919, 1941
Jun 2017–May 2018
12-Month
56.2°F
(13.4°C)
55.4°F
(13.0°C)
0.8°F
(0.4°C)
87th Coolest Coolest since: 2015 1904, 1918
38th Warmest Warmest since: 2017 2012
Ties: 1919, 1995
Dec 2016–May 2018
18-Month
53.7°F
(12.1°C)
51.6°F
(10.9°C)
2.1°F
(1.2°C)
113th Coolest Coolest since: 2016 1979
11th Warmest Warmest since: 2017 2017
Ties: 1939, 1992
Jun 2016–May 2018
24-Month
57.8°F
(14.3°C)
55.4°F
(13.0°C)
2.4°F
(1.3°C)
120th Coolest Coolest since: 2016 1905, 1978
4th Warmest Warmest since: 2017 2017
Ties: 2000
Jun 2015–May 2018
36-Month
58.0°F
(14.4°C)
55.4°F
(13.0°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
57.1°F
(13.9°C)
55.3°F
(12.9°C)
1.8°F
(1.0°C)
119th Coolest Coolest since: 2017 1980
3rd Warmest Warmest since: 1935 2019
Jun 2013–May 2018
60-Month
56.5°F
(13.6°C)
55.4°F
(13.0°C)
1.1°F
(0.6°C)
106th Coolest Coolest since: 2017 1979, 1980, 1981
15th Warmest Warmest since: 2017 1935, 2019
Ties: 1956, 2017

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published January 2020, retrieved on January 23, 2020 from https://www.ncdc.noaa.gov/cag/