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


Illinois

Average Temperature Rankings, July 1949

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
July 1949
1-Month
77.9°F
(25.5°C)
75.6°F
(24.2°C)
2.3°F
(1.3°C)
107th Coolest Coolest since: 1948 2009, 2014
20th Warmest Warmest since: 1936 1936
Jun–Jul 1949
2-Month
75.9°F
(24.4°C)
73.4°F
(23.0°C)
2.5°F
(1.4°C)
111th Coolest Coolest since: 1948 1915
16th Warmest Warmest since: 1936 1934
Ties: 1987
May–Jul 1949
3-Month
72.1°F
(22.3°C)
69.7°F
(20.9°C)
2.4°F
(1.4°C)
113th Coolest Coolest since: 1948 1924
14th Warmest Warmest since: 1944 1934
Ties: 1901
Apr–Jul 1949
4-Month
66.7°F
(19.3°C)
65.2°F
(18.4°C)
1.5°F
(0.9°C)
99th Coolest Coolest since: 1948 1907
28th Warmest Warmest since: 1941 1934
Mar–Jul 1949
5-Month
61.3°F
(16.3°C)
60.1°F
(15.6°C)
1.2°F
(0.7°C)
95th Coolest Coolest since: 1948 1960
32nd Warmest Warmest since: 1946 2012
Ties: 2000, 2005
Feb–Jul 1949
6-Month
56.1°F
(13.4°C)
54.9°F
(12.7°C)
1.2°F
(0.7°C)
95th Coolest Coolest since: 1948 1947
32nd Warmest Warmest since: 1946 2012
Ties: 1957, 1964, 2018
Jan–Jul 1949
7-Month
52.2°F
(11.2°C)
50.7°F
(10.4°C)
1.5°F
(0.8°C)
95th Coolest Coolest since: 1948 1912
32nd Warmest Warmest since: 1946 2012
Ties: 1944, 1976, 1992
Dec 1948–Jul 1949
8-Month
49.7°F
(9.8°C)
48.0°F
(8.9°C)
1.7°F
(0.9°C)
102nd Coolest Coolest since: 1948 1904
24th Warmest Warmest since: 1938 2012
Ties: 1896, 1931, 1952, 1955
Nov 1948–Jul 1949
9-Month
49.0°F
(9.4°C)
47.2°F
(8.4°C)
1.8°F
(1.0°C)
104th Coolest Coolest since: 1948 1904
22nd Warmest Warmest since: 1934 2012
Ties: 1983, 2004, 2020
Oct 1948–Jul 1949
10-Month
49.3°F
(9.6°C)
48.0°F
(8.9°C)
1.3°F
(0.7°C)
98th Coolest Coolest since: 1948 1904
28th Warmest Warmest since: 1942 2012
Ties: 1964, 2010
Sep 1948–Jul 1949
11-Month
51.0°F
(10.6°C)
49.7°F
(9.8°C)
1.3°F
(0.8°C)
105th Coolest Coolest since: 1948 1904
21st Warmest Warmest since: 1942 2012
Ties: 1976, 1983
Aug 1948–Jul 1949
12-Month
52.9°F
(11.6°C)
51.6°F
(10.9°C)
1.3°F
(0.7°C)
103rd Coolest Coolest since: 1948 1904
23rd Warmest Warmest since: 1942 2012
Ties: 1931, 2004
Feb 1948–Jul 1949
18-Month
53.6°F
(12.0°C)
52.7°F
(11.5°C)
0.9°F
(0.5°C)
95th Coolest Coolest since: 1948 1918
31st Warmest Warmest since: 1942 2012
Ties: 1914
Aug 1947–Jul 1949
24-Month
52.7°F
(11.5°C)
51.7°F
(10.9°C)
1.0°F
(0.6°C)
101st Coolest Coolest since: 1948 1905
24th Warmest Warmest since: 1942 2017
Ties: 1935, 2003, 2020
Aug 1946–Jul 1949
36-Month
52.0°F
(11.1°C)
51.6°F
(10.9°C)
0.4°F
(0.2°C)
77th Coolest Coolest since: 1948 1979
47th Warmest Warmest since: 1944 2018
Ties: 1915, 1936, 1990
Aug 1945–Jul 1949
48-Month
52.1°F
(11.2°C)
51.6°F
(10.9°C)
0.5°F
(0.3°C)
81st Coolest Coolest since: 1948 1905, 1980
42nd Warmest Warmest since: 1944 2019
Ties: 1936, 1939, 1976, 2015
Aug 1944–Jul 1949
60-Month
51.9°F
(11.1°C)
51.6°F
(10.9°C)
0.3°F
(0.2°C)
67th Coolest Coolest since: 1948 1906
55th Warmest Warmest since: 1946 2020
Ties: 1922, 1954

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published April 2021, retrieved on May 6, 2021 from https://www.ncdc.noaa.gov/cag/