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


Illinois

Average Temperature Rankings, October 2017

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
October 2017
1-Month
58.1°F
(14.5°C)
54.6°F
(12.6°C)
3.5°F
(1.9°C)
109th Coolest Coolest since: 2015 1925
18th Warmest Warmest since: 2016 1963
Sep–Oct 2017
2-Month
63.4°F
(17.4°C)
60.4°F
(15.8°C)
3.0°F
(1.6°C)
114th Coolest Coolest since: 2015 1917
13th Warmest Warmest since: 2016 1897, 2016
Ties: 1938, 1941, 1973
Aug–Oct 2017
3-Month
65.8°F
(18.8°C)
64.8°F
(18.2°C)
1.0°F
(0.6°C)
91st Coolest Coolest since: 2014 1917
36th Warmest Warmest since: 2016 1947
Ties: 1933, 1995
Jul–Oct 2017
4-Month
68.4°F
(20.2°C)
67.5°F
(19.7°C)
0.9°F
(0.5°C)
91st Coolest Coolest since: 2015 1917
36th Warmest Warmest since: 2016 1936
Ties: 1913, 1935, 1956, 2011
Jun–Oct 2017
5-Month
69.2°F
(20.7°C)
68.2°F
(20.1°C)
1.0°F
(0.6°C)
91st Coolest Coolest since: 2015 1917
36th Warmest Warmest since: 2016 1936
Ties: 1944, 1995
May–Oct 2017
6-Month
68.0°F
(20.0°C)
67.2°F
(19.6°C)
0.8°F
(0.4°C)
82nd Coolest Coolest since: 2014 1917
45th Warmest Warmest since: 2016 1936
Ties: 1962, 1973
Apr–Oct 2017
7-Month
66.4°F
(19.1°C)
65.0°F
(18.3°C)
1.4°F
(0.8°C)
107th Coolest Coolest since: 2015 1917
20th Warmest Warmest since: 2016 2010
Ties: 1938, 1986, 2018
Mar–Oct 2017
8-Month
63.5°F
(17.5°C)
61.9°F
(16.6°C)
1.6°F
(0.9°C)
113th Coolest Coolest since: 2015 1917
14th Warmest Warmest since: 2016 2012
Ties: 1941, 1963, 1986
Feb–Oct 2017
9-Month
61.0°F
(16.1°C)
58.2°F
(14.6°C)
2.8°F
(1.5°C)
121st Coolest Coolest since: 2015 1917
6th Warmest Warmest since: 2016 2012
Ties: 1938
Jan–Oct 2017
10-Month
58.1°F
(14.5°C)
54.9°F
(12.7°C)
3.2°F
(1.8°C)
123rd Coolest Coolest since: 2016 1904
4th Warmest Warmest since: 2012 2012
Dec 2016–Oct 2017
11-Month
55.4°F
(13.0°C)
52.6°F
(11.4°C)
2.8°F
(1.6°C)
121st Coolest Coolest since: 2015 1904
5th Warmest Warmest since: 2016 2012
Nov 2016–Oct 2017
12-Month
54.8°F
(12.7°C)
51.6°F
(10.9°C)
3.2°F
(1.8°C)
123rd Coolest Coolest since: 2015 1904
3rd Warmest Warmest since: 2016 2012
May 2016–Oct 2017
18-Month
59.8°F
(15.4°C)
56.8°F
(13.8°C)
3.0°F
(1.6°C)
124th Coolest Coolest since: 2016 1904
2nd Warmest Warmest since: 2016 2012
Ties: 2016
Nov 2015–Oct 2017
24-Month
55.2°F
(12.9°C)
51.6°F
(10.9°C)
3.6°F
(2.0°C)
124th Coolest Coolest since: 2016 1905
1st Warmest Warmest to Date 2017
Nov 2014–Oct 2017
36-Month
53.9°F
(12.2°C)
51.6°F
(10.9°C)
2.3°F
(1.3°C)
121st Coolest Coolest since: 2016 1904, 1979
3rd Warmest Warmest since: 2012 2018
Ties: 2007, 2012
Nov 2013–Oct 2017
48-Month
52.7°F
(11.5°C)
51.6°F
(10.9°C)
1.1°F
(0.6°C)
104th Coolest Coolest since: 2016 1905
19th Warmest Warmest since: 2013 2019
Ties: 2003
Nov 2012–Oct 2017
60-Month
52.6°F
(11.4°C)
51.6°F
(10.9°C)
1.0°F
(0.5°C)
100th Coolest Coolest since: 2015 1905, 1906
22nd Warmest Warmest since: 2016 2002, 2020
Ties: 1933, 2010, 2014

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2021, retrieved on January 17, 2021 from https://www.ncdc.noaa.gov/cag/