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 April 2021. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, July 1901

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
July 1901
1-Month
81.5°F
(27.5°C)
75.6°F
(24.2°C)
5.9°F
(3.3°C)
124th Coolest Coolest since: 1900 2009, 2014
3rd Warmest Warmest to Date 1936
Jun–Jul 1901
2-Month
77.8°F
(25.4°C)
73.5°F
(23.1°C)
4.3°F
(2.3°C)
125th Coolest Coolest since: 1900 1915
2nd Warmest Warmest to Date 1934
May–Jul 1901
3-Month
72.1°F
(22.3°C)
69.7°F
(20.9°C)
2.4°F
(1.4°C)
113th Coolest Coolest since: 1900 1924
14th Warmest Warmest to Date 1934
Ties: 1949
Apr–Jul 1901
4-Month
66.4°F
(19.1°C)
65.2°F
(18.4°C)
1.2°F
(0.7°C)
97th Coolest Coolest since: 1900 1907
30th Warmest Warmest since: 1896 1934
Ties: 1922, 1932, 1959, 2016, 2018
Mar–Jul 1901
5-Month
60.7°F
(15.9°C)
60.1°F
(15.6°C)
0.6°F
(0.3°C)
77th Coolest Coolest since: 1900 1960
50th Warmest Warmest since: 1896 2012
Ties: 1918, 2015
Feb–Jul 1901
6-Month
54.1°F
(12.3°C)
55.0°F
(12.8°C)
-0.9°F
(-0.5°C)
41st Coolest Coolest since: 1900 1947
86th Warmest Warmest since: 1898 2012
Ties: 1961, 1971
Jan–Jul 1901
7-Month
50.4°F
(10.2°C)
50.7°F
(10.4°C)
-0.3°F
(-0.2°C)
56th Coolest Coolest since: 1900 1912
71st Warmest Warmest since: 1898 2012
Ties: 1903, 1945, 1975
Dec 1900–Jul 1901
8-Month
48.0°F
(8.9°C)
48.1°F
(8.9°C)
-0.1°F
(0.0°C)
61st Coolest Coolest since: 1900 1904
65th Warmest Warmest since: 1898 2012
Ties: 1972
Nov 1900–Jul 1901
9-Month
47.0°F
(8.3°C)
47.2°F
(8.4°C)
-0.2°F
(-0.1°C)
52nd Coolest Coolest since: 1900 1904
74th Warmest Warmest since: 1898 2012
Ties: 1910, 1916, 1943, 1959, 1965
Oct 1900–Jul 1901
10-Month
48.4°F
(9.1°C)
48.0°F
(8.9°C)
0.4°F
(0.2°C)
74th Coolest Coolest since: 1900 1904
52nd Warmest Warmest since: 1898 2012
Ties: 1913, 1944, 1981
Sep 1900–Jul 1901
11-Month
50.2°F
(10.1°C)
49.7°F
(9.8°C)
0.5°F
(0.3°C)
80th Coolest Coolest since: 1900 1904
46th Warmest Warmest since: 1898 2012
Ties: 1896, 1981, 1988, 2008
Aug 1900–Jul 1901
12-Month
52.6°F
(11.4°C)
51.7°F
(10.9°C)
0.9°F
(0.5°C)
94th Coolest Coolest since: 1900 1904
32nd Warmest Warmest to Date 2012
Ties: 1941, 1957, 1983, 2011
Feb 1900–Jul 1901
18-Month
52.7°F
(11.5°C)
52.7°F
(11.5°C)
0.0°F
(0.0°C)
59th Coolest Coolest since: 1900 1918
67th Warmest Warmest since: 1898 2012
Ties: 1945
Aug 1899–Jul 1901
24-Month
52.0°F
(11.1°C)
51.6°F
(10.9°C)
0.4°F
(0.2°C)
78th Coolest Coolest since: 1900 1905
47th Warmest Warmest to Date 2017
Ties: 1973, 1976, 1989, 1998
Aug 1898–Jul 1901
36-Month
51.2°F
(10.7°C)
51.6°F
(10.9°C)
-0.4°F
(-0.2°C)
32nd Coolest Coolest since: 1900 1979
92nd Warmest Warmest since: 1898 2018
Ties: 1908, 1929, 1997
Aug 1897–Jul 1901
48-Month
51.5°F
(10.8°C)
51.6°F
(10.9°C)
-0.1°F
(-0.1°C)
47th Coolest Coolest since: 1900 1905, 1980
76th Warmest Warmest to Date 2019
Ties: 1914, 1947, 1959, 1966, 1983
Aug 1896–Jul 1901
60-Month
51.3°F
(10.7°C)
51.5°F
(10.8°C)
-0.2°F
(-0.1°C)
34th Coolest Coolest since: 1900 1906
88th Warmest Warmest since: 1900 2020
Ties: 1900, 1910, 1960, 1965, 1968, 1973

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published May 2021, retrieved on May 15, 2021 from https://www.ncdc.noaa.gov/cag/