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 2021. For more information, please see Climatological Rankings.


Illinois, Climate Division 7. East Southeast

Average Temperature Rankings, September 2020

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 2020
1-Month
66.9°F
(19.4°C)
67.4°F
(19.7°C)
-0.5°F
(-0.3°C)
55th Coolest Coolest since: 2014 1918
72nd Warmest Warmest since: 2019 1925
Aug–Sep 2020
2-Month
69.8°F
(21.0°C)
70.8°F
(21.6°C)
-1.0°F
(-0.6°C)
38th Coolest Coolest since: 2014 1967
89th Warmest Warmest since: 2019 1936
Ties: 1910
Jul–Sep 2020
3-Month
72.3°F
(22.4°C)
72.6°F
(22.6°C)
-0.3°F
(-0.2°C)
54th Coolest Coolest since: 2014 1967
73rd Warmest Warmest since: 2019 1936
Ties: 1964, 1990
Jun–Sep 2020
4-Month
72.7°F
(22.6°C)
72.6°F
(22.6°C)
0.1°F
(0.0°C)
63rd Coolest Coolest since: 2015 1967
64th Warmest Warmest since: 2019 1936
Ties: 1897, 1916, 1968, 2008, 2015
May–Sep 2020
5-Month
70.4°F
(21.3°C)
70.7°F
(21.5°C)
-0.3°F
(-0.2°C)
50th Coolest Coolest since: 2014 1924
77th Warmest Warmest since: 2019 1936
Ties: 1942, 1972, 1975, 2000
Apr–Sep 2020
6-Month
67.1°F
(19.5°C)
67.7°F
(19.8°C)
-0.6°F
(-0.3°C)
38th Coolest Coolest since: 2009 1907
89th Warmest Warmest since: 2019 2010
Ties: 1975, 2003, 2009
Mar–Sep 2020
7-Month
64.1°F
(17.8°C)
64.0°F
(17.8°C)
0.1°F
(0.0°C)
62nd Coolest Coolest since: 2014 1924
65th Warmest Warmest since: 2019 2012
Ties: 1949, 1957
Feb–Sep 2020
8-Month
60.4°F
(15.8°C)
60.0°F
(15.6°C)
0.4°F
(0.2°C)
76th Coolest Coolest since: 2015 1904, 1924
51st Warmest Warmest since: 2019 2012
Ties: 1896, 1913, 1949, 2009
Jan–Sep 2020
9-Month
57.5°F
(14.2°C)
56.4°F
(13.6°C)
1.1°F
(0.6°C)
93rd Coolest Coolest since: 2019 1979
34th Warmest Warmest since: 2018 2012
Ties: 1934, 1973
Dec 2019–Sep 2020
10-Month
55.4°F
(13.0°C)
53.9°F
(12.2°C)
1.5°F
(0.8°C)
105th Coolest Coolest since: 2019 1904
21st Warmest Warmest since: 2017 2012
Ties: 1922, 1925, 1934, 2000, 2010
Nov 2019–Sep 2020
11-Month
53.8°F
(12.1°C)
52.8°F
(11.6°C)
1.0°F
(0.5°C)
90th Coolest Coolest since: 2019 1904
36th Warmest Warmest since: 2018 2012
Ties: 1913, 1942
Oct 2019–Sep 2020
12-Month
54.0°F
(12.2°C)
53.1°F
(11.7°C)
0.9°F
(0.5°C)
89th Coolest Coolest since: 2019 1904
37th Warmest Warmest since: 2018 2012
Ties: 1913, 1938, 1976
Apr 2019–Sep 2020
18-Month
59.0°F
(15.0°C)
58.0°F
(14.4°C)
1.0°F
(0.6°C)
97th Coolest Coolest since: 2019 1918
29th Warmest Warmest since: 2019 2012
Ties: 2019
Oct 2018–Sep 2020
24-Month
53.8°F
(12.1°C)
53.0°F
(11.7°C)
0.8°F
(0.4°C)
93rd Coolest Coolest since: 2015 1979
32nd Warmest Warmest since: 2019 2017
Ties: 1931, 1943, 1986, 1998, 2001
Oct 2017–Sep 2020
36-Month
54.1°F
(12.3°C)
53.1°F
(11.7°C)
1.0°F
(0.6°C)
101st Coolest Coolest since: 2016 1979
23rd Warmest Warmest since: 2019 2018
Ties: 1922, 1935, 1987, 2004
Oct 2016–Sep 2020
48-Month
54.6°F
(12.6°C)
53.0°F
(11.7°C)
1.6°F
(0.9°C)
113th Coolest Coolest since: 2017 1980
10th Warmest Warmest since: 2019 2019
Ties: 1935
Oct 2015–Sep 2020
60-Month
55.0°F
(12.8°C)
53.1°F
(11.7°C)
1.9°F
(1.1°C)
121st Coolest Coolest since: 2019 1982
1st Warmest Warmest to Date 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published June 2021, retrieved on June 13, 2021 from https://www.ncdc.noaa.gov/cag/