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 July 2022. For more information, please see Climatological Rankings.


Illinois, Climate Division 8. Southwest

Average Temperature Rankings, May 2021

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 2021
1-Month
63.7°F
(17.6°C)
65.1°F
(18.4°C)
-1.4°F
(-0.8°C)
42nd Coolest Coolest since: 2020 1917, 1924
87th Warmest Warmest since: 2019 2018
Ties: 1920
Apr–May 2021
2-Month
59.6°F
(15.3°C)
60.2°F
(15.7°C)
-0.6°F
(-0.4°C)
39th Coolest Coolest since: 2020 1907
90th Warmest Warmest since: 2019 1896
Ties: 1943
Mar–May 2021
3-Month
56.7°F
(13.7°C)
55.0°F
(12.8°C)
1.7°F
(0.9°C)
97th Coolest Coolest since: 2020 1960
32nd Warmest Warmest since: 2017 2012
Ties: 1922, 1998
Feb–May 2021
4-Month
49.2°F
(9.6°C)
50.0°F
(10.0°C)
-0.8°F
(-0.4°C)
48th Coolest Coolest since: 2015 1978
81st Warmest Warmest since: 2020 2012
Ties: 1931, 1961, 1982
Jan–May 2021
5-Month
46.3°F
(7.9°C)
46.2°F
(7.9°C)
0.1°F
(0.0°C)
61st Coolest Coolest since: 2015 1978
68th Warmest Warmest since: 2020 2012
Ties: 1910
Dec 2020–May 2021
6-Month
44.7°F
(7.1°C)
44.2°F
(6.8°C)
0.5°F
(0.3°C)
70th Coolest Coolest since: 2015 1978
58th Warmest Warmest since: 2020 2012
Ties: 1989
Nov 2020–May 2021
7-Month
45.5°F
(7.5°C)
44.3°F
(6.8°C)
1.2°F
(0.7°C)
91st Coolest Coolest since: 2019 1978
37th Warmest Warmest since: 2020 2012
Oct 2020–May 2021
8-Month
46.8°F
(8.2°C)
46.0°F
(7.8°C)
0.8°F
(0.4°C)
86th Coolest Coolest since: 2019 1978
42nd Warmest Warmest since: 2020 2012
Ties: 1898, 1990
Sep 2020–May 2021
9-Month
49.2°F
(9.6°C)
48.5°F
(9.2°C)
0.7°F
(0.4°C)
84th Coolest Coolest since: 2015 1978
44th Warmest Warmest since: 2020 2012
Ties: 1911, 1919, 1949
Aug 2020–May 2021
10-Month
51.7°F
(10.9°C)
51.3°F
(10.7°C)
0.4°F
(0.2°C)
74th Coolest Coolest since: 2015 1978
54th Warmest Warmest since: 2020 2012
Ties: 1911
Jul 2020–May 2021
11-Month
54.3°F
(12.4°C)
53.7°F
(12.1°C)
0.6°F
(0.3°C)
81st Coolest Coolest since: 2015 1918
47th Warmest Warmest since: 2020 2012
Ties: 1927
Jun 2020–May 2021
12-Month
56.0°F
(13.3°C)
55.3°F
(12.9°C)
0.7°F
(0.4°C)
84th Coolest Coolest since: 2015 1904, 1918
44th Warmest Warmest since: 2020 2012
Ties: 1923, 1931
Dec 2019–May 2021
18-Month
52.9°F
(11.6°C)
51.6°F
(10.9°C)
1.3°F
(0.7°C)
101st Coolest Coolest since: 2019 1979
26th Warmest Warmest since: 2020 2017
Ties: 1987
Jun 2019–May 2021
24-Month
56.4°F
(13.6°C)
55.4°F
(13.0°C)
1.0°F
(0.6°C)
103rd Coolest Coolest since: 2019 1905, 1978
24th Warmest Warmest since: 2020 2017
Ties: 1934, 2001, 2005, 2016, 2019
Jun 2018–May 2021
36-Month
56.5°F
(13.6°C)
55.4°F
(13.0°C)
1.1°F
(0.6°C)
105th Coolest Coolest since: 2020 1979
21st Warmest Warmest since: 2020 2018
Ties: 1957, 1992, 2002, 2020
Jun 2017–May 2021
48-Month
56.4°F
(13.6°C)
55.3°F
(12.9°C)
1.1°F
(0.7°C)
103rd Coolest Coolest since: 2016 1980
22nd Warmest Warmest since: 2020 2019
Jun 2016–May 2021
60-Month
57.0°F
(13.9°C)
55.3°F
(12.9°C)
1.7°F
(1.0°C)
122nd Coolest Coolest since: 2019 1979, 1980, 1981
2nd Warmest Warmest since: 2020 2020
Ties: 1935, 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published August 2022, retrieved on August 15, 2022 from https://www.ncei.noaa.gov/cag/