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, May 2017

View Period (Months):All1234567891011121824364860
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
May 2017
1-Month
61.9°F
(16.6°C)
62.1°F
(16.7°C)
-0.2°F
(-0.1°C)
54th Coolest Coolest since: 2008 1917
73rd Warmest Warmest since: 2016 2018
Ties: 1938, 1942, 1957
Apr–May 2017
2-Month
59.2°F
(15.1°C)
56.8°F
(13.8°C)
2.4°F
(1.3°C)
106th Coolest Coolest since: 2016 1907
21st Warmest Warmest since: 2015 1896
Ties: 1921, 1959, 1999
Mar–May 2017
3-Month
53.9°F
(12.2°C)
51.2°F
(10.7°C)
2.7°F
(1.5°C)
110th Coolest Coolest since: 2015 1960
17th Warmest Warmest since: 2016 2012
Feb–May 2017
4-Month
50.7°F
(10.4°C)
45.7°F
(7.6°C)
5.0°F
(2.8°C)
125th Coolest Coolest since: 2016 1978
2nd Warmest Warmest since: 2012 2012
Ties: 1991
Jan–May 2017
5-Month
47.0°F
(8.3°C)
41.6°F
(5.3°C)
5.4°F
(3.0°C)
125th Coolest Coolest since: 2016 1978, 1979
2nd Warmest Warmest since: 2012 2012
Dec 2016–May 2017
6-Month
44.0°F
(6.7°C)
39.6°F
(4.2°C)
4.4°F
(2.5°C)
122nd Coolest Coolest since: 2016 1978
4th Warmest Warmest since: 2016 2012
Ties: 2016
Nov 2016–May 2017
7-Month
44.5°F
(6.9°C)
39.7°F
(4.3°C)
4.8°F
(2.6°C)
124th Coolest Coolest since: 2016 1904
2nd Warmest Warmest since: 2012 2012
Oct 2016–May 2017
8-Month
46.5°F
(8.1°C)
41.7°F
(5.4°C)
4.8°F
(2.7°C)
124th Coolest Coolest since: 2016 1904, 1978
2nd Warmest Warmest since: 2012 2012
Sep 2016–May 2017
9-Month
49.2°F
(9.6°C)
44.4°F
(6.9°C)
4.8°F
(2.7°C)
124th Coolest Coolest since: 2016 1904
2nd Warmest Warmest since: 2012 2012
Aug 2016–May 2017
10-Month
51.8°F
(11.0°C)
47.2°F
(8.4°C)
4.6°F
(2.6°C)
124th Coolest Coolest since: 2016 1904
2nd Warmest Warmest since: 2012 2012
Jul 2016–May 2017
11-Month
54.0°F
(12.2°C)
49.9°F
(9.9°C)
4.1°F
(2.3°C)
124th Coolest Coolest since: 2016 1904
2nd Warmest Warmest since: 2012 2012
Jun 2016–May 2017
12-Month
55.7°F
(13.2°C)
51.6°F
(10.9°C)
4.1°F
(2.3°C)
124th Coolest Coolest since: 2016 1904
2nd Warmest Warmest since: 2012 2012
Dec 2015–May 2017
18-Month
51.8°F
(11.0°C)
47.6°F
(8.7°C)
4.2°F
(2.3°C)
124th Coolest Coolest since: 2016 1979
1st Warmest Warmest to Date 2017
Jun 2015–May 2017
24-Month
55.1°F
(12.8°C)
51.6°F
(10.9°C)
3.5°F
(1.9°C)
124th Coolest Coolest since: 2016 1905
1st Warmest Warmest to Date 2017
Jun 2014–May 2017
36-Month
53.6°F
(12.0°C)
51.6°F
(10.9°C)
2.0°F
(1.1°C)
120th Coolest Coolest since: 2016 1979
4th Warmest Warmest since: 2013 2018
Jun 2013–May 2017
48-Month
52.6°F
(11.4°C)
51.6°F
(10.9°C)
1.0°F
(0.5°C)
100th Coolest Coolest since: 2016 1980
23rd Warmest Warmest since: 2014 2019
Ties: 1922, 1924
Jun 2012–May 2017
60-Month
52.6°F
(11.4°C)
51.6°F
(10.9°C)
1.0°F
(0.5°C)
103rd Coolest Coolest since: 2015 1906, 1907, 1908, 1981
19th Warmest Warmest since: 2016 2020
Ties: 1936, 1956, 2000, 2010, 2018

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/