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 1940

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Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 1940
1-Month
56.6°F
(13.7°C)
59.7°F
(15.4°C)
-3.1°F
(-1.7°C)
23rd Coolest Coolest since: 1935 1907
103rd Warmest Warmest since: 1939 1977
Ties: 1927
Apr–May 1940
2-Month
51.6°F
(10.9°C)
54.0°F
(12.2°C)
-2.4°F
(-1.3°C)
15th Coolest Coolest since: 1935 1907
111th Warmest Warmest since: 1939 1977
Ties: 1945, 1995
Mar–May 1940
3-Month
44.6°F
(7.0°C)
47.8°F
(8.8°C)
-3.2°F
(-1.8°C)
6th Coolest Coolest since: 1926 1960
120th Warmest Warmest since: 1939 2012
Feb–May 1940
4-Month
39.7°F
(4.3°C)
41.9°F
(5.5°C)
-2.2°F
(-1.2°C)
19th Coolest Coolest since: 1936 1947
107th Warmest Warmest since: 1939 2012
Ties: 1907, 1916
Jan–May 1940
5-Month
33.9°F
(1.1°C)
37.6°F
(3.1°C)
-3.7°F
(-2.0°C)
8th Coolest Coolest since: 1936 1912
118th Warmest Warmest since: 1939 2012
Dec 1939–May 1940
6-Month
33.6°F
(0.9°C)
35.5°F
(1.9°C)
-1.9°F
(-1.0°C)
18th Coolest Coolest since: 1936 1979
107th Warmest Warmest since: 1939 2012
Ties: 1959, 1962
Nov 1939–May 1940
7-Month
34.1°F
(1.2°C)
35.6°F
(2.0°C)
-1.5°F
(-0.8°C)
20th Coolest Coolest since: 1936 1904
105th Warmest Warmest since: 1939 2012
Ties: 1926, 1982
Oct 1939–May 1940
8-Month
36.5°F
(2.5°C)
37.7°F
(3.2°C)
-1.2°F
(-0.7°C)
23rd Coolest Coolest since: 1936 1912
102nd Warmest Warmest since: 1939 2012
Sep 1939–May 1940
9-Month
40.0°F
(4.4°C)
40.6°F
(4.8°C)
-0.6°F
(-0.4°C)
36th Coolest Coolest since: 1936 1904
89th Warmest Warmest since: 1939 2012
Ties: 1907, 1956, 1975
Aug 1939–May 1940
10-Month
43.0°F
(6.1°C)
43.6°F
(6.4°C)
-0.6°F
(-0.3°C)
37th Coolest Coolest since: 1936 1904
88th Warmest Warmest since: 1939 2012
Ties: 1947, 1959, 1967
Jul 1939–May 1940
11-Month
45.9°F
(7.7°C)
46.3°F
(7.9°C)
-0.4°F
(-0.2°C)
41st Coolest Coolest since: 1936 1904
84th Warmest Warmest since: 1939 2012
Ties: 1907, 1966, 1969
Jun 1939–May 1940
12-Month
48.0°F
(8.9°C)
48.2°F
(9.0°C)
-0.2°F
(-0.1°C)
49th Coolest Coolest since: 1936 1904
76th Warmest Warmest since: 1939 2012
Ties: 1969, 1980, 2009
Dec 1938–May 1940
18-Month
44.4°F
(6.9°C)
44.0°F
(6.7°C)
0.4°F
(0.2°C)
79th Coolest Coolest since: 1937 1918
45th Warmest Warmest since: 1939 2017
Ties: 1898, 1950, 1990
Jun 1938–May 1940
24-Month
49.0°F
(9.4°C)
48.2°F
(9.0°C)
0.8°F
(0.4°C)
91st Coolest Coolest since: 1937 1905
33rd Warmest Warmest since: 1939 2017
Ties: 1915, 1956
Jun 1937–May 1940
36-Month
49.1°F
(9.5°C)
48.2°F
(9.0°C)
0.9°F
(0.5°C)
93rd Coolest Coolest since: 1938 1905, 1918, 1979
30th Warmest Warmest since: 1939 2000
Ties: 1921, 1941, 1987, 1988
Jun 1936–May 1940
48-Month
49.1°F
(9.5°C)
48.2°F
(9.0°C)
0.9°F
(0.5°C)
93rd Coolest Coolest since: 1939 1980
29th Warmest Warmest since: 1935 2001, 2002, 2007
Ties: 1923, 1988, 1989
Jun 1935–May 1940
60-Month
48.5°F
(9.2°C)
48.2°F
(9.0°C)
0.3°F
(0.2°C)
69th Coolest Coolest since: 1931 1907, 1908
52nd Warmest Warmest since: 1939 2002
Ties: 1949, 1985, 1994

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published September 2019, retrieved on September 17, 2019 from https://www.ncdc.noaa.gov/cag/