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 December 2020. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, August 1939

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
August 1939
1-Month
72.4°F
(22.4°C)
73.4°F
(23.0°C)
-1.0°F
(-0.6°C)
39th Coolest Coolest since: 1929 1915
88th Warmest Warmest since: 1938 1947
Ties: 1990
Jul–Aug 1939
2-Month
74.1°F
(23.4°C)
74.5°F
(23.6°C)
-0.4°F
(-0.2°C)
53rd Coolest Coolest since: 1929 1915
74th Warmest Warmest since: 1938 1936
Ties: 1897, 1922, 1942, 1968
Jun–Aug 1939
3-Month
73.6°F
(23.1°C)
73.4°F
(23.0°C)
0.2°F
(0.1°C)
68th Coolest Coolest since: 1935 1915
59th Warmest Warmest since: 1938 1936
Ties: 1895, 1968, 1975
May–Aug 1939
4-Month
71.5°F
(21.9°C)
70.6°F
(21.4°C)
0.9°F
(0.5°C)
84th Coolest Coolest since: 1938 1915
43rd Warmest Warmest since: 1936 1934, 1936
Ties: 1975
Apr–Aug 1939
5-Month
66.9°F
(19.4°C)
66.8°F
(19.3°C)
0.1°F
(0.1°C)
57th Coolest Coolest since: 1935 1907
70th Warmest Warmest since: 1938 1934
Ties: 1963, 1975, 1993, 2000
Mar–Aug 1939
6-Month
62.7°F
(17.1°C)
62.3°F
(16.8°C)
0.4°F
(0.3°C)
72nd Coolest Coolest since: 1937 1904, 1950, 1960
55th Warmest Warmest since: 1938 2012
Ties: 1981
Feb–Aug 1939
7-Month
57.8°F
(14.3°C)
57.6°F
(14.2°C)
0.2°F
(0.1°C)
70th Coolest Coolest since: 1937 1904
57th Warmest Warmest since: 1938 2012
Jan–Aug 1939
8-Month
54.7°F
(12.6°C)
53.6°F
(12.0°C)
1.1°F
(0.6°C)
89th Coolest Coolest since: 1937 1904, 1912
38th Warmest Warmest since: 1938 2012
Ties: 2011
Dec 1938–Aug 1939
9-Month
52.0°F
(11.1°C)
50.9°F
(10.5°C)
1.1°F
(0.6°C)
91st Coolest Coolest since: 1937 1904
35th Warmest Warmest since: 1938 2012
Ties: 1911, 1930, 1976
Nov 1938–Aug 1939
10-Month
51.0°F
(10.6°C)
49.8°F
(9.9°C)
1.2°F
(0.7°C)
95th Coolest Coolest since: 1937 1904
31st Warmest Warmest since: 1938 2012
Ties: 2004
Oct 1938–Aug 1939
11-Month
51.8°F
(11.0°C)
50.3°F
(10.2°C)
1.5°F
(0.8°C)
105th Coolest Coolest since: 1938 1904
21st Warmest Warmest since: 1934 2012
Ties: 1976, 2010
Sep 1938–Aug 1939
12-Month
53.1°F
(11.7°C)
51.6°F
(10.9°C)
1.5°F
(0.8°C)
105th Coolest Coolest since: 1938 1904
21st Warmest Warmest since: 1934 2012
Ties: 2007
Mar 1938–Aug 1939
18-Month
56.8°F
(13.8°C)
55.2°F
(12.9°C)
1.6°F
(0.9°C)
109th Coolest Coolest since: 1938 1904
17th Warmest Warmest since: 1934 2012
Ties: 1988, 1991
Sep 1937–Aug 1939
24-Month
52.8°F
(11.6°C)
51.6°F
(10.9°C)
1.2°F
(0.7°C)
103rd Coolest Coolest since: 1938 1905
22nd Warmest Warmest since: 1935 2017
Ties: 1935, 2002, 2003
Sep 1936–Aug 1939
36-Month
52.4°F
(11.3°C)
51.6°F
(10.9°C)
0.8°F
(0.4°C)
89th Coolest Coolest since: 1938 1979
35th Warmest Warmest since: 1935 2018
Sep 1935–Aug 1939
48-Month
52.1°F
(11.2°C)
51.6°F
(10.9°C)
0.5°F
(0.3°C)
84th Coolest Coolest since: 1938 1905
39th Warmest Warmest since: 1937 2019
Ties: 1937, 1940, 1943, 1949, 1954, 1976, 1987, 1999, 2011
Sep 1934–Aug 1939
60-Month
52.1°F
(11.2°C)
51.6°F
(10.9°C)
0.5°F
(0.3°C)
77th Coolest Coolest since: 1937 1906
45th Warmest Warmest since: 1938 2020
Ties: 1937, 1945, 1976, 2015

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2021, retrieved on January 23, 2021 from https://www.ncdc.noaa.gov/cag/