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 August 2020. For more information, please see Climatological Rankings.


Illinois, Climate Division 3. West

Average Temperature Rankings, September 2019

View Period (Months):All1234567891011121824364860
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 2019
1-Month
71.2°F
(21.8°C)
66.1°F
(18.9°C)
5.1°F
(2.9°C)
121st Coolest Coolest since: 2018 1918
5th Warmest Warmest since: 1933 1931, 1933
Aug–Sep 2019
2-Month
71.8°F
(22.1°C)
69.9°F
(21.1°C)
1.9°F
(1.0°C)
102nd Coolest Coolest since: 2017 1967
24th Warmest Warmest since: 2018 1936
Ties: 1921, 1954, 1960
Jul–Sep 2019
3-Month
73.8°F
(23.2°C)
71.9°F
(22.2°C)
1.9°F
(1.0°C)
106th Coolest Coolest since: 2018 1967
20th Warmest Warmest since: 2005 1936
Ties: 1914
Jun–Sep 2019
4-Month
73.2°F
(22.9°C)
71.8°F
(22.1°C)
1.4°F
(0.8°C)
98th Coolest Coolest since: 2017 1992
28th Warmest Warmest since: 2018 1936
Ties: 1897, 1959
May–Sep 2019
5-Month
70.8°F
(21.6°C)
69.9°F
(21.1°C)
0.9°F
(0.5°C)
88th Coolest Coolest since: 2017 1924, 1967
38th Warmest Warmest since: 2018 1936
Ties: 1937
Apr–Sep 2019
6-Month
67.6°F
(19.8°C)
66.8°F
(19.3°C)
0.8°F
(0.5°C)
84th Coolest Coolest since: 2017 1907
42nd Warmest Warmest since: 2018 1936
Ties: 1952, 1953
Mar–Sep 2019
7-Month
63.2°F
(17.3°C)
62.9°F
(17.2°C)
0.3°F
(0.1°C)
72nd Coolest Coolest since: 2014 1924
54th Warmest Warmest since: 2018 1936
Ties: 1918, 2001
Feb–Sep 2019
8-Month
58.5°F
(14.7°C)
58.5°F
(14.7°C)
0.0°F
(0.0°C)
61st Coolest Coolest since: 2015 1904
65th Warmest Warmest since: 2018 2012
Ties: 1910
Jan–Sep 2019
9-Month
54.6°F
(12.6°C)
54.6°F
(12.6°C)
0.0°F
(0.0°C)
59th Coolest Coolest since: 2015 1904
67th Warmest Warmest since: 2018 2012
Ties: 1906, 1980
Dec 2018–Sep 2019
10-Month
52.4°F
(11.3°C)
52.0°F
(11.1°C)
0.4°F
(0.2°C)
75th Coolest Coolest since: 2015 1904
50th Warmest Warmest since: 2018 2012
Ties: 1948, 1980, 1995
Nov 2018–Sep 2019
11-Month
50.8°F
(10.4°C)
51.0°F
(10.6°C)
-0.2°F
(-0.2°C)
52nd Coolest Coolest since: 2015 1904
73rd Warmest Warmest since: 2018 2012
Ties: 1898, 1910, 1916, 1936, 1948, 1966, 1989
Oct 2018–Sep 2019
12-Month
50.9°F
(10.5°C)
51.2°F
(10.7°C)
-0.3°F
(-0.2°C)
49th Coolest Coolest since: 2015 1904
76th Warmest Warmest since: 2018 2012
Apr 2018–Sep 2019
18-Month
56.8°F
(13.8°C)
56.5°F
(13.6°C)
0.3°F
(0.2°C)
76th Coolest Coolest since: 2015 1904
49th Warmest Warmest since: 2018 2012
Ties: 1898, 1911, 1989
Oct 2017–Sep 2019
24-Month
51.6°F
(10.9°C)
51.2°F
(10.7°C)
0.4°F
(0.2°C)
82nd Coolest Coolest since: 2015 1979
42nd Warmest Warmest since: 2018 2017
Ties: 1911, 1915, 1941, 1947, 1948, 1957, 1984
Oct 2016–Sep 2019
36-Month
52.5°F
(11.4°C)
51.2°F
(10.7°C)
1.3°F
(0.7°C)
105th Coolest Coolest since: 2016 1979
18th Warmest Warmest since: 2018 2018
Ties: 1988
Oct 2015–Sep 2019
48-Month
53.1°F
(11.7°C)
51.2°F
(10.7°C)
1.9°F
(1.0°C)
120th Coolest Coolest since: 2018 1905
2nd Warmest Warmest since: 1934 1934
Oct 2014–Sep 2019
60-Month
52.6°F
(11.4°C)
51.2°F
(10.7°C)
1.4°F
(0.7°C)
117th Coolest Coolest since: 2018 1906, 1982
4th Warmest Warmest since: 2006 1934
Ties: 2006

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published September 2020, retrieved on September 30, 2020 from https://www.ncdc.noaa.gov/cag/