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


Illinois

Average Temperature Rankings, September 2016

View Period (Months):All1234567891011121824364860
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 2016
1-Month
70.8°F
(21.6°C)
66.2°F
(19.0°C)
4.6°F
(2.6°C)
118th Coolest Coolest since: 2015 1918
8th Warmest Warmest since: 1998 1925, 1933
Aug–Sep 2016
2-Month
73.2°F
(22.9°C)
69.8°F
(21.0°C)
3.4°F
(1.9°C)
121st Coolest Coolest since: 2015 1967
5th Warmest Warmest since: 2007 1936
Jul–Sep 2016
3-Month
74.0°F
(23.3°C)
71.7°F
(22.1°C)
2.3°F
(1.2°C)
114th Coolest Coolest since: 2015 1967
12th Warmest Warmest since: 2005 1936
Ties: 1933
Jun–Sep 2016
4-Month
74.2°F
(23.4°C)
71.6°F
(22.0°C)
2.6°F
(1.4°C)
117th Coolest Coolest since: 2015 1915, 1924
9th Warmest Warmest since: 2005 1936
Ties: 1988
May–Sep 2016
5-Month
71.8°F
(22.1°C)
69.8°F
(21.0°C)
2.0°F
(1.1°C)
112th Coolest Coolest since: 2015 1924
14th Warmest Warmest since: 2012 1936
Ties: 1941, 1959
Apr–Sep 2016
6-Month
68.6°F
(20.3°C)
66.7°F
(19.3°C)
1.9°F
(1.0°C)
110th Coolest Coolest since: 2015 1907
16th Warmest Warmest since: 2012 2010
Ties: 2007
Mar–Sep 2016
7-Month
65.6°F
(18.7°C)
62.9°F
(17.2°C)
2.7°F
(1.5°C)
118th Coolest Coolest since: 2015 1924
8th Warmest Warmest since: 2012 2012
Feb–Sep 2016
8-Month
61.6°F
(16.4°C)
58.6°F
(14.8°C)
3.0°F
(1.6°C)
120th Coolest Coolest since: 2015 1904
6th Warmest Warmest since: 2012 2012
Jan–Sep 2016
9-Month
57.8°F
(14.3°C)
55.0°F
(12.8°C)
2.8°F
(1.5°C)
120th Coolest Coolest since: 2015 1904, 1912
6th Warmest Warmest since: 2012 2012
Dec 2015–Sep 2016
10-Month
56.1°F
(13.4°C)
52.4°F
(11.3°C)
3.7°F
(2.1°C)
122nd Coolest Coolest since: 2015 1904
3rd Warmest Warmest since: 2012 2012
Nov 2015–Sep 2016
11-Month
55.2°F
(12.9°C)
51.3°F
(10.7°C)
3.9°F
(2.2°C)
123rd Coolest Coolest since: 2015 1904
2nd Warmest Warmest since: 2012 2012
Oct 2015–Sep 2016
12-Month
55.3°F
(12.9°C)
51.6°F
(10.9°C)
3.7°F
(2.0°C)
123rd Coolest Coolest since: 2015 1904
2nd Warmest Warmest since: 2012 2012
Apr 2015–Sep 2016
18-Month
59.5°F
(15.3°C)
56.7°F
(13.7°C)
2.8°F
(1.6°C)
123rd Coolest Coolest since: 2015 1904, 1918
2nd Warmest Warmest since: 2012 2012
Ties: 2017
Oct 2014–Sep 2016
24-Month
53.2°F
(11.8°C)
51.6°F
(10.9°C)
1.6°F
(0.9°C)
109th Coolest Coolest since: 2015 1979
15th Warmest Warmest since: 2013 2017
Ties: 1988, 1991
Oct 2013–Sep 2016
36-Month
51.9°F
(11.1°C)
51.6°F
(10.9°C)
0.3°F
(0.2°C)
74th Coolest Coolest since: 2015 1979
49th Warmest Warmest since: 2014 2018
Ties: 1915, 1948, 1985
Oct 2012–Sep 2016
48-Month
51.9°F
(11.1°C)
51.6°F
(10.9°C)
0.3°F
(0.2°C)
73rd Coolest Coolest since: 1997 1905
49th Warmest Warmest since: 2015 2019
Ties: 1921, 1937, 1938, 1943, 1975, 1994
Oct 2011–Sep 2016
60-Month
52.8°F
(11.6°C)
51.6°F
(10.9°C)
1.2°F
(0.7°C)
110th Coolest Coolest since: 2015 1906
11th Warmest Warmest since: 2013 2002
Ties: 1957, 1991, 2009

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published February 2020, retrieved on February 22, 2020 from https://www.ncdc.noaa.gov/cag/