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


Illinois

Average Temperature Rankings, April 1940

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
April 1940
1-Month
49.6°F
(9.8°C)
51.5°F
(10.8°C)
-1.9°F
(-1.0°C)
30th Coolest Coolest since: 1939 1907
97th Warmest Warmest since: 1938 2010
Ties: 1956, 2020
Mar–Apr 1940
2-Month
43.0°F
(6.1°C)
45.6°F
(7.6°C)
-2.6°F
(-1.5°C)
21st Coolest Coolest since: 1932 1926
106th Warmest Warmest since: 1939 2012
Ties: 1962, 1993
Feb–Apr 1940
3-Month
38.4°F
(3.6°C)
40.2°F
(4.6°C)
-1.8°F
(-1.0°C)
37th Coolest Coolest since: 1937 1978
90th Warmest Warmest since: 1939 2012
Jan–Apr 1940
4-Month
32.1°F
(0.1°C)
36.5°F
(2.5°C)
-4.4°F
(-2.4°C)
9th Coolest Coolest since: 1936 1912
118th Warmest Warmest since: 1939 2012
Dec 1939–Apr 1940
5-Month
32.5°F
(0.3°C)
35.1°F
(1.7°C)
-2.6°F
(-1.4°C)
15th Coolest Coolest since: 1936 1978
111th Warmest Warmest since: 1939 2012
Ties: 1962, 1970
Nov 1939–Apr 1940
6-Month
33.7°F
(0.9°C)
36.0°F
(2.2°C)
-2.3°F
(-1.3°C)
17th Coolest Coolest since: 1936 1904
109th Warmest Warmest since: 1939 2012
Oct 1939–Apr 1940
7-Month
37.0°F
(2.8°C)
38.7°F
(3.7°C)
-1.7°F
(-0.9°C)
20th Coolest Coolest since: 1936 1904
106th Warmest Warmest since: 1939 2012
Ties: 1962
Sep 1939–Apr 1940
8-Month
41.2°F
(5.1°C)
42.1°F
(5.6°C)
-0.9°F
(-0.5°C)
29th Coolest Coolest since: 1936 1904
97th Warmest Warmest since: 1939 2017
Ties: 1965, 1969, 1975, 1993, 1997
Aug 1939–Apr 1940
9-Month
44.7°F
(7.1°C)
45.6°F
(7.6°C)
-0.9°F
(-0.5°C)
29th Coolest Coolest since: 1936 1904
97th Warmest Warmest since: 1939 2017
Ties: 1917
Jul 1939–Apr 1940
10-Month
47.8°F
(8.8°C)
48.6°F
(9.2°C)
-0.8°F
(-0.4°C)
31st Coolest Coolest since: 1936 1904
95th Warmest Warmest since: 1939 2012
Ties: 1897, 1969, 1975
Jun 1939–Apr 1940
11-Month
50.1°F
(10.1°C)
50.7°F
(10.4°C)
-0.6°F
(-0.3°C)
39th Coolest Coolest since: 1936 1904
87th Warmest Warmest since: 1939 2017
Ties: 1943
May 1939–Apr 1940
12-Month
51.3°F
(10.7°C)
51.6°F
(10.9°C)
-0.3°F
(-0.2°C)
44th Coolest Coolest since: 1936 1918
82nd Warmest Warmest since: 1939 2012, 2017
Ties: 1910, 1960, 2001, 2009
Nov 1938–Apr 1940
18-Month
46.7°F
(8.2°C)
46.4°F
(8.0°C)
0.3°F
(0.2°C)
71st Coolest Coolest since: 1937 1905
54th Warmest Warmest since: 1939 2017
Ties: 1898, 1921, 1972, 1973, 1986
May 1938–Apr 1940
24-Month
52.2°F
(11.2°C)
51.7°F
(10.9°C)
0.5°F
(0.3°C)
85th Coolest Coolest since: 1937 1905
40th Warmest Warmest since: 1939 2017
Ties: 1950, 2009, 2019
May 1937–Apr 1940
36-Month
52.3°F
(11.3°C)
51.6°F
(10.9°C)
0.7°F
(0.4°C)
88th Coolest Coolest since: 1938 1979
36th Warmest Warmest since: 1939 2018
Ties: 1924, 1943, 1974, 1976, 1987, 1993, 2009
May 1936–Apr 1940
48-Month
52.5°F
(11.4°C)
51.6°F
(10.9°C)
0.9°F
(0.5°C)
96th Coolest Coolest since: 1939 1980
27th Warmest Warmest since: 1935 2019
Ties: 1923, 1942, 1989, 1991, 2004
May 1935–Apr 1940
60-Month
51.8°F
(11.0°C)
51.6°F
(10.9°C)
0.2°F
(0.1°C)
66th Coolest Coolest since: 1931 1906
56th Warmest Warmest since: 1939 2020
Ties: 1948, 1950, 1959, 1975

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2020, retrieved on November 26, 2020 from https://www.ncdc.noaa.gov/cag/