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 April 2021. For more information, please see Climatological Rankings.


Illinois, Climate Division 8. Southwest

Average Temperature Rankings, April 2020

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
April 2020
1-Month
53.5°F
(11.9°C)
55.3°F
(12.9°C)
-1.8°F
(-1.0°C)
26th Coolest Coolest since: 2018 1907
102nd Warmest Warmest since: 2019 1896
Ties: 1980, 1984
Mar–Apr 2020
2-Month
51.6°F
(10.9°C)
49.9°F
(9.9°C)
1.7°F
(1.0°C)
89th Coolest Coolest since: 2019 1926, 1960
39th Warmest Warmest since: 2017 2012
Ties: 1903, 1927, 1935
Feb–Apr 2020
3-Month
47.0°F
(8.3°C)
44.9°F
(7.2°C)
2.1°F
(1.1°C)
96th Coolest Coolest since: 2019 1899
32nd Warmest Warmest since: 2017 2012
Jan–Apr 2020
4-Month
44.5°F
(6.9°C)
41.5°F
(5.3°C)
3.0°F
(1.6°C)
111th Coolest Coolest since: 2019 1978
17th Warmest Warmest since: 2017 2012
Dec 2019–Apr 2020
5-Month
43.5°F
(6.4°C)
40.0°F
(4.4°C)
3.5°F
(2.0°C)
119th Coolest Coolest since: 2019 1978
8th Warmest Warmest since: 2017 2012
Ties: 2006
Nov 2019–Apr 2020
6-Month
42.9°F
(6.1°C)
40.9°F
(4.9°C)
2.0°F
(1.2°C)
104th Coolest Coolest since: 2019 1912
23rd Warmest Warmest since: 2017 2012
Ties: 1938, 1953, 1974
Oct 2019–Apr 2020
7-Month
45.0°F
(7.2°C)
43.3°F
(6.3°C)
1.7°F
(0.9°C)
103rd Coolest Coolest since: 2019 1899, 1978
24th Warmest Warmest since: 2017 2012
Ties: 1998
Sep 2019–Apr 2020
8-Month
48.8°F
(9.3°C)
46.5°F
(8.1°C)
2.3°F
(1.2°C)
115th Coolest Coolest since: 2019 1918
12th Warmest Warmest since: 2017 2017
Ties: 1972
Aug 2019–Apr 2020
9-Month
51.9°F
(11.1°C)
49.8°F
(9.9°C)
2.1°F
(1.2°C)
116th Coolest Coolest since: 2019 1918
11th Warmest Warmest since: 2017 2017
Ties: 1939
Jul 2019–Apr 2020
10-Month
54.5°F
(12.5°C)
52.5°F
(11.4°C)
2.0°F
(1.1°C)
114th Coolest Coolest since: 2019 1918
13th Warmest Warmest since: 2017 2012
Ties: 1935, 1942
Jun 2019–Apr 2020
11-Month
56.2°F
(13.4°C)
54.5°F
(12.5°C)
1.7°F
(0.9°C)
113th Coolest Coolest since: 2019 1918
14th Warmest Warmest since: 2017 2012, 2017
Ties: 1921, 1939, 1974
May 2019–Apr 2020
12-Month
57.2°F
(14.0°C)
55.4°F
(13.0°C)
1.8°F
(1.0°C)
115th Coolest Coolest since: 2019 1918
12th Warmest Warmest since: 2017 2012, 2017
Ties: 1955, 2002
Nov 2018–Apr 2020
18-Month
51.9°F
(11.1°C)
50.5°F
(10.3°C)
1.4°F
(0.8°C)
105th Coolest Coolest since: 2019 1979
21st Warmest Warmest since: 2018 2017
Ties: 2003
May 2018–Apr 2020
24-Month
57.1°F
(13.9°C)
55.3°F
(12.9°C)
1.8°F
(1.0°C)
114th Coolest Coolest since: 2019 1978
12th Warmest Warmest since: 2018 2017
Ties: 2007
May 2017–Apr 2020
36-Month
56.6°F
(13.7°C)
55.3°F
(12.9°C)
1.3°F
(0.8°C)
106th Coolest Coolest since: 2016 1979
19th Warmest Warmest since: 2019 2018
Ties: 1932, 1954, 2002, 2014
May 2016–Apr 2020
48-Month
57.3°F
(14.1°C)
55.4°F
(13.0°C)
1.9°F
(1.1°C)
122nd Coolest Coolest since: 2018 1980
2nd Warmest Warmest since: 2019 2019
Ties: 1935
May 2015–Apr 2020
60-Month
57.5°F
(14.2°C)
55.3°F
(12.9°C)
2.2°F
(1.3°C)
122nd Coolest Coolest since: 2019 1980, 1981
1st Warmest Warmest to Date 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published May 2021, retrieved on May 10, 2021 from https://www.ncdc.noaa.gov/cag/