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 December 2021. For more information, please see Climatological Rankings.


Illinois, Climate Division 5. East

Average Temperature Rankings, May 1991

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
May 1991
1-Month
68.4°F
(20.2°C)
61.0°F
(16.1°C)
7.4°F
(4.1°C)
125th Coolest Coolest since: 1990 1907
3rd Warmest Warmest since: 1977 2018
Ties: 1896
Apr–May 1991
2-Month
61.8°F
(16.6°C)
55.5°F
(13.1°C)
6.3°F
(3.5°C)
125th Coolest Coolest since: 1990 1907
3rd Warmest Warmest since: 1977 1977
Mar–May 1991
3-Month
55.2°F
(12.9°C)
49.7°F
(9.8°C)
5.5°F
(3.1°C)
125th Coolest Coolest since: 1990 1960
3rd Warmest Warmest since: 1977 2012
Feb–May 1991
4-Month
49.5°F
(9.7°C)
44.1°F
(6.7°C)
5.4°F
(3.0°C)
126th Coolest Coolest since: 1990 1978
2nd Warmest Warmest to Date 2012
Jan–May 1991
5-Month
44.2°F
(6.8°C)
40.1°F
(4.5°C)
4.1°F
(2.3°C)
121st Coolest Coolest since: 1989 1978
7th Warmest Warmest since: 1990 2012
Dec 1990–May 1991
6-Month
41.8°F
(5.4°C)
38.1°F
(3.4°C)
3.7°F
(2.0°C)
120th Coolest Coolest since: 1990 1978
7th Warmest Warmest since: 1987 2012
Nov 1990–May 1991
7-Month
42.4°F
(5.8°C)
38.3°F
(3.5°C)
4.1°F
(2.3°C)
121st Coolest Coolest since: 1990 1904
6th Warmest Warmest since: 1932 2012
Ties: 2000
Oct 1990–May 1991
8-Month
43.6°F
(6.4°C)
40.2°F
(4.6°C)
3.4°F
(1.8°C)
119th Coolest Coolest since: 1990 1904
8th Warmest Warmest since: 1932 2012
Sep 1990–May 1991
9-Month
46.1°F
(7.8°C)
42.9°F
(6.1°C)
3.2°F
(1.7°C)
118th Coolest Coolest since: 1990 1904
9th Warmest Warmest since: 1932 2012
Aug 1990–May 1991
10-Month
48.6°F
(9.2°C)
45.9°F
(7.7°C)
2.7°F
(1.5°C)
119th Coolest Coolest since: 1990 1904
8th Warmest Warmest since: 1932 2012
Jul 1990–May 1991
11-Month
50.8°F
(10.4°C)
48.5°F
(9.2°C)
2.3°F
(1.2°C)
117th Coolest Coolest since: 1990 1904
10th Warmest Warmest since: 1932 2012
Ties: 1998
Jun 1990–May 1991
12-Month
52.5°F
(11.4°C)
50.3°F
(10.2°C)
2.2°F
(1.2°C)
116th Coolest Coolest since: 1990 1904
11th Warmest Warmest since: 1954 2012
Dec 1989–May 1991
18-Month
48.2°F
(9.0°C)
46.2°F
(7.9°C)
2.0°F
(1.1°C)
112th Coolest Coolest since: 1990 1905
14th Warmest Warmest since: 1955 2017
Ties: 2007
Jun 1989–May 1991
24-Month
51.7°F
(10.9°C)
50.3°F
(10.2°C)
1.4°F
(0.7°C)
110th Coolest Coolest since: 1990 1905
16th Warmest Warmest since: 1988 2017
Ties: 1935, 1942, 2021
Jun 1988–May 1991
36-Month
51.5°F
(10.8°C)
50.2°F
(10.1°C)
1.3°F
(0.7°C)
102nd Coolest Coolest since: 1990 1905, 1906
23rd Warmest Warmest since: 1989 2018
Ties: 1987, 1993, 2021
Jun 1987–May 1991
48-Month
51.5°F
(10.8°C)
50.3°F
(10.2°C)
1.2°F
(0.6°C)
103rd Coolest Coolest since: 1990 1905
21st Warmest Warmest since: 1988 2019
Ties: 1933, 1988, 2014, 2017
Jun 1986–May 1991
60-Month
51.6°F
(10.9°C)
50.2°F
(10.1°C)
1.4°F
(0.8°C)
109th Coolest Coolest since: 1990 1905, 1906, 1908
14th Warmest Warmest since: 1957 2020
Ties: 2001, 2004, 2009

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published January 2022, retrieved on January 26, 2022 from https://www.ncdc.noaa.gov/cag/