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 6. West Southwest

Average Temperature Rankings, May 1991

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Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 1991
1-Month
69.6°F
(20.9°C)
63.5°F
(17.5°C)
6.1°F
(3.4°C)
121st Coolest Coolest since: 1990 1924
5th Warmest Warmest since: 1987 2018
Ties: 1977
Apr–May 1991
2-Month
63.6°F
(17.6°C)
58.3°F
(14.6°C)
5.3°F
(3.0°C)
123rd Coolest Coolest since: 1990 1907
3rd Warmest Warmest since: 1977 1896
Mar–May 1991
3-Month
57.8°F
(14.3°C)
52.7°F
(11.5°C)
5.1°F
(2.8°C)
123rd Coolest Coolest since: 1990 1960
3rd Warmest Warmest since: 1977 2012
Feb–May 1991
4-Month
52.5°F
(11.4°C)
47.4°F
(8.6°C)
5.1°F
(2.8°C)
124th Coolest Coolest since: 1990 1978
2nd Warmest Warmest to Date 2012
Jan–May 1991
5-Month
46.9°F
(8.3°C)
43.3°F
(6.3°C)
3.6°F
(2.0°C)
118th Coolest Coolest since: 1990 1978
8th Warmest Warmest since: 1946 2012
Ties: 1938
Dec 1990–May 1991
6-Month
44.4°F
(6.9°C)
41.3°F
(5.2°C)
3.1°F
(1.7°C)
116th Coolest Coolest since: 1990 1978
9th Warmest Warmest since: 1987 2012
Ties: 1987, 2006
Nov 1990–May 1991
7-Month
45.0°F
(7.2°C)
41.4°F
(5.2°C)
3.6°F
(2.0°C)
119th Coolest Coolest since: 1990 1904
6th Warmest Warmest since: 1932 2012
Oct 1990–May 1991
8-Month
46.1°F
(7.8°C)
43.2°F
(6.2°C)
2.9°F
(1.6°C)
118th Coolest Coolest since: 1990 1978
7th Warmest Warmest since: 1932 2012
Ties: 2002, 2006
Sep 1990–May 1991
9-Month
48.7°F
(9.3°C)
46.0°F
(7.8°C)
2.7°F
(1.5°C)
117th Coolest Coolest since: 1990 1904
8th Warmest Warmest since: 1932 2012
Ties: 1999
Aug 1990–May 1991
10-Month
51.2°F
(10.7°C)
48.9°F
(9.4°C)
2.3°F
(1.3°C)
116th Coolest Coolest since: 1990 1904
9th Warmest Warmest since: 1932 2012
Jul 1990–May 1991
11-Month
53.4°F
(11.9°C)
51.4°F
(10.8°C)
2.0°F
(1.1°C)
114th Coolest Coolest since: 1990 1904
11th Warmest Warmest since: 1955 2012
Ties: 1954, 2002
Jun 1990–May 1991
12-Month
55.1°F
(12.8°C)
53.2°F
(11.8°C)
1.9°F
(1.0°C)
115th Coolest Coolest since: 1990 1904
10th Warmest Warmest since: 1955 2012
Ties: 1921
Dec 1989–May 1991
18-Month
50.8°F
(10.4°C)
49.2°F
(9.6°C)
1.6°F
(0.8°C)
107th Coolest Coolest since: 1990 1979
17th Warmest Warmest since: 1955 2017
Jun 1989–May 1991
24-Month
54.2°F
(12.3°C)
53.1°F
(11.7°C)
1.1°F
(0.6°C)
105th Coolest Coolest since: 1990 1905
19th Warmest Warmest since: 1988 2017
Ties: 1938, 1988
Jun 1988–May 1991
36-Month
53.9°F
(12.2°C)
53.1°F
(11.7°C)
0.8°F
(0.5°C)
97th Coolest Coolest since: 1990 1979
26th Warmest Warmest since: 1989 2018
Ties: 1922, 1943, 1974, 1987, 1993, 1999
Jun 1987–May 1991
48-Month
53.9°F
(12.2°C)
53.1°F
(11.7°C)
0.8°F
(0.5°C)
97th Coolest Coolest since: 1990 1980
25th Warmest Warmest since: 1988 2019
Ties: 1922, 1924, 1940, 1988
Jun 1986–May 1991
60-Month
54.1°F
(12.3°C)
53.1°F
(11.7°C)
1.0°F
(0.6°C)
107th Coolest Coolest since: 1990 1906, 1907, 1908
14th Warmest Warmest since: 1958 1957
Ties: 1934, 1936, 1992, 2004, 2016, 2018

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published September 2019, retrieved on September 23, 2019 from https://www.ncdc.noaa.gov/cag/