Climate at a Glance

Statewide 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 September 2020. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, September 2014

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 2014
1-Month
64.7°F
(18.2°C)
66.2°F
(19.0°C)
-1.5°F
(-0.8°C)
34th Coolest Coolest since: 2011 1918
93rd Warmest Warmest since: 2013 1925, 1933
Ties: 1907, 1982
Aug–Sep 2014
2-Month
69.2°F
(20.7°C)
69.8°F
(21.0°C)
-0.6°F
(-0.3°C)
42nd Coolest Coolest since: 2012 1967
85th Warmest Warmest since: 2013 1936
Ties: 1923, 1934, 1943, 1969, 2006, 2011, 2012, 2020
Jul–Sep 2014
3-Month
69.6°F
(20.9°C)
71.7°F
(22.1°C)
-2.1°F
(-1.2°C)
9th Coolest Coolest since: 2009 1967
118th Warmest Warmest since: 2013 1936
Ties: 1951
Jun–Sep 2014
4-Month
70.4°F
(21.3°C)
71.6°F
(22.0°C)
-1.2°F
(-0.7°C)
23rd Coolest Coolest since: 2009 1915, 1924
104th Warmest Warmest since: 2013 1936
Ties: 1912, 1918, 1962, 1996
May–Sep 2014
5-Month
69.1°F
(20.6°C)
69.7°F
(20.9°C)
-0.6°F
(-0.3°C)
35th Coolest Coolest since: 2009 1924
92nd Warmest Warmest since: 2013 1936
Ties: 1920, 1963, 1969, 1979, 1982, 1990, 2008
Apr–Sep 2014
6-Month
66.3°F
(19.1°C)
66.7°F
(19.3°C)
-0.4°F
(-0.2°C)
43rd Coolest Coolest since: 2009 1907
84th Warmest Warmest since: 2013 2010
Ties: 1968, 1972
Mar–Sep 2014
7-Month
61.8°F
(16.6°C)
62.9°F
(17.2°C)
-1.1°F
(-0.6°C)
24th Coolest Coolest since: 1997 1924
103rd Warmest Warmest since: 2013 2012
Ties: 1940, 1966, 1969, 1993
Feb–Sep 2014
8-Month
56.5°F
(13.6°C)
58.7°F
(14.8°C)
-2.2°F
(-1.2°C)
8th Coolest Coolest since: 1979 1904
119th Warmest Warmest since: 2013 2012
Jan–Sep 2014
9-Month
52.3°F
(11.3°C)
54.9°F
(12.7°C)
-2.6°F
(-1.4°C)
6th Coolest Coolest since: 1979 1904, 1912
121st Warmest Warmest since: 2013 2012
Dec 2013–Sep 2014
10-Month
49.7°F
(9.8°C)
52.4°F
(11.3°C)
-2.7°F
(-1.5°C)
4th Coolest Coolest since: 1979 1904
122nd Warmest Warmest since: 2013 2012
Ties: 1912
Nov 2013–Sep 2014
11-Month
48.7°F
(9.3°C)
51.3°F
(10.7°C)
-2.6°F
(-1.4°C)
3rd Coolest Coolest since: 1912 1904
123rd Warmest Warmest since: 2013 2012
Oct 2013–Sep 2014
12-Month
49.2°F
(9.6°C)
51.6°F
(10.9°C)
-2.4°F
(-1.3°C)
6th Coolest Coolest since: 1979 1904
120th Warmest Warmest since: 2013 2012
Apr 2013–Sep 2014
18-Month
55.0°F
(12.8°C)
56.6°F
(13.7°C)
-1.6°F
(-0.9°C)
5th Coolest Coolest since: 1951 1904, 1918
121st Warmest Warmest since: 2013 2012
Oct 2012–Sep 2014
24-Month
50.6°F
(10.3°C)
51.6°F
(10.9°C)
-1.0°F
(-0.6°C)
13th Coolest Coolest since: 1997 1979
112th Warmest Warmest since: 2013 2017
Ties: 1912, 1917
Oct 2011–Sep 2014
36-Month
52.5°F
(11.4°C)
51.6°F
(10.9°C)
0.9°F
(0.5°C)
95th Coolest Coolest since: 2011 1979
29th Warmest Warmest since: 2013 2018
Ties: 1939, 1989
Oct 2010–Sep 2014
48-Month
52.4°F
(11.3°C)
51.6°F
(10.9°C)
0.8°F
(0.4°C)
97th Coolest Coolest since: 2011 1905
26th Warmest Warmest since: 2013 2019
Ties: 1941, 1942, 1989, 1990, 2004, 2010
Oct 2009–Sep 2014
60-Month
52.5°F
(11.4°C)
51.5°F
(10.8°C)
1.0°F
(0.6°C)
97th Coolest Coolest since: 2011 1906
25th Warmest Warmest since: 2013 2020
Ties: 1925, 1942, 2000, 2017

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2020, retrieved on October 20, 2020 from https://www.ncdc.noaa.gov/cag/