Climate at a Glance

Divisional 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 August 2019. For more information, please see Climatological Rankings.


Illinois, Climate Division 1. Northwest

Average Temperature Rankings, May 1939

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Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 1939
1-Month
64.0°F
(17.8°C)
59.7°F
(15.4°C)
4.3°F
(2.4°C)
106th Coolest Coolest since: 1938 1907
20th Warmest Warmest since: 1936 1977
Apr–May 1939
2-Month
54.7°F
(12.6°C)
54.0°F
(12.2°C)
0.7°F
(0.4°C)
76th Coolest Coolest since: 1938 1907
50th Warmest Warmest since: 1938 1977
Ties: 1938
Mar–May 1939
3-Month
48.7°F
(9.3°C)
47.8°F
(8.8°C)
0.9°F
(0.5°C)
78th Coolest Coolest since: 1937 1960
48th Warmest Warmest since: 1938 2012
Ties: 1905, 1990
Feb–May 1939
4-Month
42.3°F
(5.7°C)
41.9°F
(5.5°C)
0.4°F
(0.2°C)
72nd Coolest Coolest since: 1937 1947
54th Warmest Warmest since: 1938 2012
Jan–May 1939
5-Month
39.4°F
(4.1°C)
37.5°F
(3.1°C)
1.9°F
(1.0°C)
96th Coolest Coolest since: 1937 1912
30th Warmest Warmest since: 1938 2012
Dec 1938–May 1939
6-Month
37.2°F
(2.9°C)
35.5°F
(1.9°C)
1.7°F
(1.0°C)
96th Coolest Coolest since: 1937 1979
29th Warmest Warmest since: 1938 2012
Ties: 1922, 1941, 1955
Nov 1938–May 1939
7-Month
37.5°F
(3.1°C)
35.7°F
(2.1°C)
1.8°F
(1.0°C)
101st Coolest Coolest since: 1938 1904
24th Warmest Warmest since: 1932 2012
Ties: 1914, 1981
Oct 1938–May 1939
8-Month
39.9°F
(4.4°C)
37.7°F
(3.2°C)
2.2°F
(1.2°C)
106th Coolest Coolest since: 1938 1912
19th Warmest Warmest since: 1932 2012
Ties: 2007
Sep 1938–May 1939
9-Month
42.6°F
(5.9°C)
40.5°F
(4.7°C)
2.1°F
(1.2°C)
108th Coolest Coolest since: 1938 1904
17th Warmest Warmest since: 1932 2012
Ties: 1976
Aug 1938–May 1939
10-Month
45.8°F
(7.7°C)
43.6°F
(6.4°C)
2.2°F
(1.3°C)
111th Coolest Coolest since: 1938 1904
14th Warmest Warmest since: 1932 2012
Ties: 1991
Jul 1938–May 1939
11-Month
48.4°F
(9.1°C)
46.3°F
(7.9°C)
2.1°F
(1.2°C)
111th Coolest Coolest since: 1938 1904
14th Warmest Warmest since: 1932 2012
Jun 1938–May 1939
12-Month
50.0°F
(10.0°C)
48.2°F
(9.0°C)
1.8°F
(1.0°C)
110th Coolest Coolest since: 1938 1904
15th Warmest Warmest since: 1934 2012
Ties: 1922, 1934, 1991, 2004
Dec 1937–May 1939
18-Month
46.0°F
(7.8°C)
44.0°F
(6.7°C)
2.0°F
(1.1°C)
111th Coolest Coolest since: 1938 1918
13th Warmest Warmest since: 1932 2017
Ties: 2005
Jun 1937–May 1939
24-Month
49.7°F
(9.8°C)
48.2°F
(9.0°C)
1.5°F
(0.8°C)
106th Coolest Coolest since: 1938 1905
18th Warmest Warmest since: 1935 2017
Ties: 1935
Jun 1936–May 1939
36-Month
49.4°F
(9.7°C)
48.2°F
(9.0°C)
1.2°F
(0.7°C)
101st Coolest Coolest since: 1938 1905, 1918, 1979
22nd Warmest Warmest since: 1934 2000
Ties: 1922, 1956
Jun 1935–May 1939
48-Month
48.6°F
(9.2°C)
48.2°F
(9.0°C)
0.4°F
(0.2°C)
79th Coolest Coolest since: 1938 1980
43rd Warmest Warmest since: 1937 2001, 2002, 2007
Ties: 1937, 1943, 1945, 1998, 2011
Jun 1934–May 1939
60-Month
48.8°F
(9.3°C)
48.2°F
(9.0°C)
0.6°F
(0.3°C)
80th Coolest Coolest since: 1938 1907, 1908
41st Warmest Warmest since: 1938 2002
Ties: 1924, 1938, 1945, 1956, 1976

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published September 2019, retrieved on September 19, 2019 from https://www.ncdc.noaa.gov/cag/