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 August 2019. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, May 1987

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  • Record Warmest
Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 1987
1-Month
68.2°F
(20.1°C)
62.1°F
(16.7°C)
6.1°F
(3.4°C)
120th Coolest Coolest since: 1986 1917
6th Warmest Warmest since: 1977 2018
Apr–May 1987
2-Month
60.7°F
(15.9°C)
56.8°F
(13.8°C)
3.9°F
(2.1°C)
117th Coolest Coolest since: 1986 1907
9th Warmest Warmest since: 1977 1896
Mar–May 1987
3-Month
55.3°F
(12.9°C)
51.2°F
(10.7°C)
4.1°F
(2.2°C)
120th Coolest Coolest since: 1986 1960
6th Warmest Warmest since: 1977 2012
Ties: 2007
Feb–May 1987
4-Month
50.4°F
(10.2°C)
45.7°F
(7.6°C)
4.7°F
(2.6°C)
122nd Coolest Coolest since: 1986 1978
4th Warmest Warmest since: 1921 2012
Ties: 1921
Jan–May 1987
5-Month
45.6°F
(7.6°C)
41.6°F
(5.3°C)
4.0°F
(2.3°C)
120th Coolest Coolest since: 1986 1978, 1979
6th Warmest Warmest since: 1921 2012
Dec 1986–May 1987
6-Month
43.3°F
(6.3°C)
39.6°F
(4.2°C)
3.7°F
(2.1°C)
118th Coolest Coolest since: 1986 1978
7th Warmest Warmest since: 1921 2012
Nov 1986–May 1987
7-Month
42.5°F
(5.8°C)
39.7°F
(4.3°C)
2.8°F
(1.5°C)
112th Coolest Coolest since: 1986 1904
13th Warmest Warmest since: 1932 2012
Ties: 2005, 2007
Oct 1986–May 1987
8-Month
44.1°F
(6.7°C)
41.6°F
(5.3°C)
2.5°F
(1.4°C)
112th Coolest Coolest since: 1986 1904, 1978
13th Warmest Warmest since: 1976 2012
Ties: 2004, 2005
Sep 1986–May 1987
9-Month
46.9°F
(8.3°C)
44.4°F
(6.9°C)
2.5°F
(1.4°C)
114th Coolest Coolest since: 1986 1904
11th Warmest Warmest since: 1932 2012
Ties: 2002
Aug 1986–May 1987
10-Month
49.2°F
(9.6°C)
47.3°F
(8.5°C)
1.9°F
(1.1°C)
110th Coolest Coolest since: 1986 1904
15th Warmest Warmest since: 1954 2012
Ties: 2004
Jul 1986–May 1987
11-Month
51.8°F
(11.0°C)
49.9°F
(9.9°C)
1.9°F
(1.1°C)
114th Coolest Coolest since: 1986 1904
11th Warmest Warmest since: 1954 2012
Ties: 1939, 1942, 1954, 1998
Jun 1986–May 1987
12-Month
53.5°F
(11.9°C)
51.6°F
(10.9°C)
1.9°F
(1.0°C)
113th Coolest Coolest since: 1986 1904
12th Warmest Warmest since: 1955 2012
Ties: 1942, 1991, 1992
Dec 1985–May 1987
18-Month
49.0°F
(9.4°C)
47.6°F
(8.7°C)
1.4°F
(0.7°C)
103rd Coolest Coolest since: 1986 1979
21st Warmest Warmest since: 1955 2017
Ties: 1933, 1935, 2008
Jun 1985–May 1987
24-Month
52.6°F
(11.4°C)
51.7°F
(10.9°C)
0.9°F
(0.5°C)
99th Coolest Coolest since: 1986 1905
25th Warmest Warmest since: 1956 2017
Ties: 1923, 1938, 2016
Jun 1984–May 1987
36-Month
52.5°F
(11.4°C)
51.6°F
(10.9°C)
0.9°F
(0.5°C)
94th Coolest Coolest since: 1986 1979
29th Warmest Warmest since: 1957 2018
Ties: 1954, 1988
Jun 1983–May 1987
48-Month
52.2°F
(11.2°C)
51.6°F
(10.9°C)
0.6°F
(0.3°C)
86th Coolest Coolest since: 1986 1980
36th Warmest Warmest since: 1958 2019
Ties: 1937, 1944, 1958, 1999, 2010, 2015
Jun 1982–May 1987
60-Month
52.1°F
(11.2°C)
51.5°F
(10.8°C)
0.6°F
(0.4°C)
74th Coolest Coolest since: 1986 1906, 1907, 1908, 1981
47th Warmest Warmest since: 1976 2002
Ties: 1937, 1995

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2019, retrieved on September 19, 2019 from https://www.ncdc.noaa.gov/cag/