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 May 2022. 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
(1895-2022)
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)
128th 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)
91st 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)
71st Coolest Coolest since: 2014 1960
58th Warmest Warmest since: 2017 2012
Ties: 1953, 1957, 2019, 2020
Feb–May 2018
4-Month
51.4°F
(10.8°C)
50.0°F
(10.0°C)
1.4°F
(0.8°C)
91st 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)
73rd Coolest Coolest since: 2015 1978
56th 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)
74th Coolest Coolest since: 2015 1978
54th 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)
80th Coolest Coolest since: 2015 1978
48th Warmest Warmest since: 2017 2012
Ties: 1941, 1983, 1988, 1990, 2019
Oct 2017–May 2018
8-Month
47.0°F
(8.3°C)
46.0°F
(7.8°C)
1.0°F
(0.5°C)
91st Coolest Coolest since: 2015 1978
37th 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)
95th Coolest Coolest since: 2015 1978
33rd Warmest Warmest since: 2017 2012
Ties: 1925, 1938, 1941, 2019
Aug 2017–May 2018
10-Month
52.0°F
(11.1°C)
51.3°F
(10.7°C)
0.7°F
(0.4°C)
85th Coolest Coolest since: 2015 1978
43rd 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)
87th Coolest Coolest since: 2015 1918
41st 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)
88th Coolest Coolest since: 2015 1904, 1918
40th 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)
116th 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)
123rd 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)
125th 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)
121st Coolest Coolest since: 2017 1980
4th 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
18th Warmest Warmest since: 2017 2020
Ties: 1956, 2017

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published June 2022, retrieved on July 4, 2022 from https://www.ncei.noaa.gov/cag/