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 2019. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, April 1991

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
April 1991
1-Month
56.0°F
(13.3°C)
51.5°F
(10.8°C)
4.5°F
(2.5°C)
113th Coolest Coolest since: 1990 1907
13th Warmest Warmest since: 1985 2010
Mar–Apr 1991
2-Month
50.0°F
(10.0°C)
45.7°F
(7.6°C)
4.3°F
(2.4°C)
115th Coolest Coolest since: 1990 1926
11th Warmest Warmest since: 1985 2012
Ties: 1925
Feb–Apr 1991
3-Month
44.7°F
(7.1°C)
40.2°F
(4.6°C)
4.5°F
(2.5°C)
117th Coolest Coolest since: 1990 1978
9th Warmest Warmest since: 1976 2012
Ties: 2016
Jan–Apr 1991
4-Month
39.4°F
(4.1°C)
36.5°F
(2.5°C)
2.9°F
(1.6°C)
108th Coolest Coolest since: 1989 1912
18th Warmest Warmest since: 1990 2012
Ties: 1973
Dec 1990–Apr 1991
5-Month
37.6°F
(3.1°C)
35.1°F
(1.7°C)
2.5°F
(1.4°C)
105th Coolest Coolest since: 1990 1978
20th Warmest Warmest since: 1987 2012
Ties: 2004
Nov 1990–Apr 1991
6-Month
39.1°F
(3.9°C)
36.0°F
(2.2°C)
3.1°F
(1.7°C)
111th Coolest Coolest since: 1990 1904
14th Warmest Warmest since: 1976 2012
Oct 1990–Apr 1991
7-Month
41.1°F
(5.1°C)
38.7°F
(3.7°C)
2.4°F
(1.4°C)
109th Coolest Coolest since: 1990 1904
16th Warmest Warmest since: 1976 2012
Ties: 1995
Sep 1990–Apr 1991
8-Month
44.4°F
(6.9°C)
42.1°F
(5.6°C)
2.3°F
(1.3°C)
110th Coolest Coolest since: 1990 1904
15th Warmest Warmest since: 1976 2017
Aug 1990–Apr 1991
9-Month
47.5°F
(8.6°C)
45.6°F
(7.6°C)
1.9°F
(1.0°C)
110th Coolest Coolest since: 1990 1904
15th Warmest Warmest since: 1976 2017
Ties: 1939, 1998
Jul 1990–Apr 1991
10-Month
50.2°F
(10.1°C)
48.6°F
(9.2°C)
1.6°F
(0.9°C)
107th Coolest Coolest since: 1990 1904
18th Warmest Warmest since: 1981 2012
Ties: 1935, 1981, 2004
Jun 1990–Apr 1991
11-Month
52.2°F
(11.2°C)
50.7°F
(10.4°C)
1.5°F
(0.8°C)
107th Coolest Coolest since: 1990 1904
18th Warmest Warmest since: 1987 2017
Ties: 1939, 1987
May 1990–Apr 1991
12-Month
52.7°F
(11.5°C)
51.6°F
(10.9°C)
1.1°F
(0.6°C)
94th Coolest Coolest since: 1990 1918
31st Warmest Warmest since: 1989 2012, 2017
Ties: 1953, 1957, 1989, 2011
Nov 1989–Apr 1991
18-Month
47.7°F
(8.7°C)
46.4°F
(8.0°C)
1.3°F
(0.7°C)
101st Coolest Coolest since: 1990 1905
23rd Warmest Warmest since: 1988 2017
Ties: 2001, 2011
May 1989–Apr 1991
24-Month
52.3°F
(11.3°C)
51.6°F
(10.9°C)
0.7°F
(0.4°C)
91st Coolest Coolest since: 1990 1905
33rd Warmest Warmest since: 1990 2017
Ties: 1946, 1957, 1974, 1990, 2004, 2019
May 1988–Apr 1991
36-Month
52.5°F
(11.4°C)
51.7°F
(10.9°C)
0.8°F
(0.5°C)
96th Coolest Coolest since: 1990 1979
27th Warmest Warmest since: 1989 2018
Ties: 1922, 1988, 2005
May 1987–Apr 1991
48-Month
52.5°F
(11.4°C)
51.6°F
(10.9°C)
0.9°F
(0.5°C)
96th Coolest Coolest since: 1989 1980
26th Warmest Warmest since: 1990 2019
Ties: 1923, 1940, 1942, 1989, 2004
May 1986–Apr 1991
60-Month
52.6°F
(11.4°C)
51.6°F
(10.9°C)
1.0°F
(0.5°C)
104th Coolest Coolest since: 1990 1906
17th Warmest Warmest since: 1958 1935, 2002
Ties: 1923, 1956, 1958, 2001, 2005, 2010

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2020, retrieved on January 27, 2020 from https://www.ncdc.noaa.gov/cag/