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 2019. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, July 2018

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
July 2018
1-Month
75.0°F
(23.9°C)
75.6°F
(24.2°C)
-0.6°F
(-0.3°C)
51st Coolest Coolest since: 2015 2009, 2014
75th Warmest Warmest since: 2017 1936
Ties: 1898, 1937, 1970
Jun–Jul 2018
2-Month
74.9°F
(23.8°C)
73.4°F
(23.0°C)
1.5°F
(0.8°C)
96th Coolest Coolest since: 2017 1915
30th Warmest Warmest since: 2016 1934
May–Jul 2018
3-Month
73.5°F
(23.1°C)
69.7°F
(20.9°C)
3.8°F
(2.2°C)
122nd Coolest Coolest since: 2017 1924
4th Warmest Warmest since: 2012 1934
Apr–Jul 2018
4-Month
66.4°F
(19.1°C)
65.2°F
(18.4°C)
1.2°F
(0.7°C)
96th Coolest Coolest since: 2016 1907
30th Warmest Warmest since: 2017 1934
Ties: 1901, 1922, 1932, 1959, 2016
Mar–Jul 2018
5-Month
60.9°F
(16.1°C)
60.1°F
(15.6°C)
0.8°F
(0.5°C)
83rd Coolest Coolest since: 2015 1960
43rd Warmest Warmest since: 2017 2012
Ties: 1910, 1919, 1976
Feb–Jul 2018
6-Month
56.1°F
(13.4°C)
55.0°F
(12.8°C)
1.1°F
(0.6°C)
95th Coolest Coolest since: 2015 1947
31st Warmest Warmest since: 2017 2012
Ties: 1949, 1957, 1964
Jan–Jul 2018
7-Month
51.5°F
(10.8°C)
50.7°F
(10.4°C)
0.8°F
(0.4°C)
81st Coolest Coolest since: 2015 1912
45th Warmest Warmest since: 2017 2012
Ties: 1898, 1942, 1981
Dec 2017–Jul 2018
8-Month
48.8°F
(9.3°C)
48.1°F
(8.9°C)
0.7°F
(0.4°C)
79th Coolest Coolest since: 2015 1904
46th Warmest Warmest since: 2017 2012
Ties: 1925, 1990
Nov 2017–Jul 2018
9-Month
48.0°F
(8.9°C)
47.2°F
(8.4°C)
0.8°F
(0.5°C)
85th Coolest Coolest since: 2015 1904
40th Warmest Warmest since: 2017 2012
Ties: 1911, 1925, 1957
Oct 2017–Jul 2018
10-Month
49.0°F
(9.4°C)
48.0°F
(8.9°C)
1.0°F
(0.5°C)
90th Coolest Coolest since: 2015 1904
35th Warmest Warmest since: 2017 2012
Ties: 1933, 1974
Sep 2017–Jul 2018
11-Month
50.8°F
(10.4°C)
49.6°F
(9.8°C)
1.2°F
(0.6°C)
96th Coolest Coolest since: 2015 1904
29th Warmest Warmest since: 2017 2012
Ties: 1964, 2007, 2010
Aug 2017–Jul 2018
12-Month
52.5°F
(11.4°C)
51.7°F
(10.9°C)
0.8°F
(0.5°C)
89th Coolest Coolest since: 2015 1904
36th Warmest Warmest since: 2017 2012
Ties: 1938, 1964, 2008, 2010
Feb 2017–Jul 2018
18-Month
54.5°F
(12.5°C)
52.7°F
(11.5°C)
1.8°F
(1.0°C)
108th Coolest Coolest since: 2015 1918
17th Warmest Warmest since: 2017 2012
Aug 2016–Jul 2018
24-Month
54.0°F
(12.2°C)
51.6°F
(10.9°C)
2.4°F
(1.3°C)
121st Coolest Coolest since: 2016 1905
3rd Warmest Warmest since: 2017 2017
Ties: 1932, 1999, 2000, 2013
Aug 2015–Jul 2018
36-Month
54.3°F
(12.4°C)
51.6°F
(10.9°C)
2.7°F
(1.5°C)
122nd Coolest Coolest since: 2017 1979
1st Warmest Warmest to Date 2018
Aug 2014–Jul 2018
48-Month
53.5°F
(11.9°C)
51.6°F
(10.9°C)
1.9°F
(1.0°C)
120th Coolest Coolest since: 2017 1905, 1980
2nd Warmest Warmest to Date 2019
Aug 2013–Jul 2018
60-Month
52.7°F
(11.5°C)
51.6°F
(10.9°C)
1.1°F
(0.6°C)
108th Coolest Coolest since: 2017 1906
13th Warmest Warmest since: 2016 2002
Ties: 1936, 1956, 1991, 2001, 2004, 2010, 2016

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 18, 2019 from https://www.ncdc.noaa.gov/cag/