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 1899

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
July 1899
1-Month
74.5°F
(23.6°C)
75.6°F
(24.2°C)
-1.1°F
(-0.6°C)
42nd Coolest Coolest since: 1895 2009, 2014
84th Warmest Warmest since: 1898 1936
Ties: 1959, 2008
Jun–Jul 1899
2-Month
73.6°F
(23.1°C)
73.5°F
(23.1°C)
0.1°F
(0.0°C)
67th Coolest Coolest since: 1896 1915
59th Warmest Warmest since: 1898 1934
Ties: 1956, 1978, 1993, 1998
May–Jul 1899
3-Month
70.1°F
(21.2°C)
69.7°F
(20.9°C)
0.4°F
(0.3°C)
73rd Coolest Coolest since: 1898 1924
53rd Warmest Warmest since: 1896 1934
Ties: 1957, 1993
Apr–Jul 1899
4-Month
65.7°F
(18.7°C)
65.1°F
(18.4°C)
0.6°F
(0.3°C)
73rd Coolest Coolest since: 1898 1907
53rd Warmest Warmest since: 1896 1934
Ties: 1957
Mar–Jul 1899
5-Month
59.2°F
(15.1°C)
60.1°F
(15.6°C)
-0.9°F
(-0.5°C)
34th Coolest Coolest since: 1897 1960
92nd Warmest Warmest since: 1898 2012
Ties: 1927, 1982
Feb–Jul 1899
6-Month
52.3°F
(11.3°C)
54.9°F
(12.7°C)
-2.6°F
(-1.4°C)
11th Coolest Coolest to Date 1947
115th Warmest Warmest since: 1898 2012
Jan–Jul 1899
7-Month
48.5°F
(9.2°C)
50.7°F
(10.4°C)
-2.2°F
(-1.2°C)
15th Coolest Coolest since: 1895 1912
111th Warmest Warmest since: 1898 2012
Dec 1898–Jul 1899
8-Month
45.6°F
(7.6°C)
48.1°F
(8.9°C)
-2.5°F
(-1.3°C)
9th Coolest Coolest to Date 1904
116th Warmest Warmest since: 1898 2012
Ties: 1982
Nov 1898–Jul 1899
9-Month
44.6°F
(7.0°C)
47.3°F
(8.5°C)
-2.7°F
(-1.5°C)
6th Coolest Coolest to Date 1904
119th Warmest Warmest since: 1898 2012
Ties: 1920
Oct 1898–Jul 1899
10-Month
45.2°F
(7.3°C)
48.0°F
(8.9°C)
-2.8°F
(-1.6°C)
6th Coolest Coolest to Date 1904
119th Warmest Warmest since: 1898 2012
Ties: 2014
Sep 1898–Jul 1899
11-Month
47.4°F
(8.6°C)
49.7°F
(9.8°C)
-2.3°F
(-1.2°C)
7th Coolest Coolest to Date 1904
118th Warmest Warmest since: 1898 2012
Aug 1898–Jul 1899
12-Month
49.5°F
(9.7°C)
51.6°F
(10.9°C)
-2.1°F
(-1.2°C)
6th Coolest Coolest to Date 1904
119th Warmest Warmest since: 1898 2012
Ties: 1979
Feb 1898–Jul 1899
18-Month
51.4°F
(10.8°C)
52.7°F
(11.5°C)
-1.3°F
(-0.7°C)
11th Coolest Coolest to Date 1918
114th Warmest Warmest since: 1898 2012
Ties: 1997
Aug 1897–Jul 1899
24-Month
50.9°F
(10.5°C)
51.6°F
(10.9°C)
-0.7°F
(-0.4°C)
27th Coolest Coolest to Date 1905
97th Warmest Warmest since: 1898 2017
Ties: 1960
Aug 1896–Jul 1899
36-Month
50.9°F
(10.5°C)
51.6°F
(10.9°C)
-0.7°F
(-0.4°C)
19th Coolest Coolest to Date 1979
104th Warmest Warmest since: 1898 2018
Ties: 1928, 1952
Aug 1895–Jul 1899
48-Month
51.2°F
(10.7°C)
51.6°F
(10.9°C)
-0.4°F
(-0.2°C)
30th Coolest Coolest to Date 1905, 1980
92nd Warmest Warmest to Date 2019
Ties: 1915, 1928, 1960, 1972

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 20, 2019 from https://www.ncdc.noaa.gov/cag/