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


Illinois, Climate Division 8. Southwest

Average Temperature Rankings, May 1988

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
May 1988
1-Month
66.1°F
(18.9°C)
65.1°F
(18.4°C)
1.0°F
(0.5°C)
78th Coolest Coolest since: 1984 1917, 1924
49th Warmest Warmest since: 1987 2018
Ties: 1921, 1932
Apr–May 1988
2-Month
60.9°F
(16.1°C)
60.2°F
(15.7°C)
0.7°F
(0.4°C)
76th Coolest Coolest since: 1984 1907
51st Warmest Warmest since: 1987 1896
Ties: 1899, 1903, 1914, 1933, 2005, 2016
Mar–May 1988
3-Month
55.6°F
(13.1°C)
55.0°F
(12.8°C)
0.6°F
(0.3°C)
75th Coolest Coolest since: 1984 1960
52nd Warmest Warmest since: 1987 2012
Ties: 1941, 1973, 1992
Feb–May 1988
4-Month
49.7°F
(9.8°C)
50.0°F
(10.0°C)
-0.3°F
(-0.2°C)
54th Coolest Coolest since: 1984 1978
73rd Warmest Warmest since: 1987 2012
Ties: 1965, 1970
Jan–May 1988
5-Month
45.6°F
(7.6°C)
46.2°F
(7.9°C)
-0.6°F
(-0.3°C)
49th Coolest Coolest since: 1985 1978
78th Warmest Warmest since: 1987 2012
Dec 1987–May 1988
6-Month
44.3°F
(6.8°C)
44.3°F
(6.8°C)
0.0°F
(0.0°C)
59th Coolest Coolest since: 1984 1978
67th Warmest Warmest since: 1987 2012
Ties: 1931, 1965
Nov 1987–May 1988
7-Month
45.0°F
(7.2°C)
44.4°F
(6.9°C)
0.6°F
(0.3°C)
80th Coolest Coolest since: 1985 1978
46th Warmest Warmest since: 1987 2012
Ties: 1941, 1983, 1990, 2018, 2019
Oct 1987–May 1988
8-Month
45.8°F
(7.7°C)
45.9°F
(7.7°C)
-0.1°F
(0.0°C)
48th Coolest Coolest since: 1984 1978
78th Warmest Warmest since: 1987 2012
Ties: 1900, 1910, 1931
Sep 1987–May 1988
9-Month
48.5°F
(9.2°C)
48.6°F
(9.2°C)
-0.1°F
(0.0°C)
51st Coolest Coolest since: 1984 1978
75th Warmest Warmest since: 1987 2012
Ties: 1907, 1937, 1943, 1956, 1962, 1965, 1966
Aug 1987–May 1988
10-Month
51.4°F
(10.8°C)
51.3°F
(10.7°C)
0.1°F
(0.1°C)
58th Coolest Coolest since: 1984 1978
68th Warmest Warmest since: 1987 2012
Ties: 1907, 1989, 2009, 2010
Jul 1987–May 1988
11-Month
53.9°F
(12.2°C)
53.8°F
(12.1°C)
0.1°F
(0.1°C)
66th Coolest Coolest since: 1985 1918
60th Warmest Warmest since: 1987 2012
Ties: 1903, 1911, 1989, 1990, 2003
Jun 1987–May 1988
12-Month
55.8°F
(13.2°C)
55.4°F
(13.0°C)
0.4°F
(0.2°C)
77th Coolest Coolest since: 1986 1904, 1918
49th Warmest Warmest since: 1987 2012
Ties: 1896, 1909, 1949, 1950, 1986
Dec 1986–May 1988
18-Month
52.7°F
(11.5°C)
51.7°F
(10.9°C)
1.0°F
(0.6°C)
98th Coolest Coolest since: 1986 1979
27th Warmest Warmest since: 1987 2017
Ties: 2019
Jun 1986–May 1988
24-Month
56.3°F
(13.5°C)
55.4°F
(13.0°C)
0.9°F
(0.5°C)
97th Coolest Coolest since: 1987 1905, 1978
28th Warmest Warmest since: 1987 2017
Ties: 1987, 1991, 2003
Jun 1985–May 1988
36-Month
56.1°F
(13.4°C)
55.3°F
(12.9°C)
0.8°F
(0.5°C)
92nd Coolest Coolest since: 1987 1979
32nd Warmest Warmest since: 1987 2018
Ties: 1987, 1989, 1991
Jun 1984–May 1988
48-Month
56.0°F
(13.3°C)
55.3°F
(12.9°C)
0.7°F
(0.4°C)
91st Coolest Coolest since: 1987 1980
32nd Warmest Warmest since: 1957 2019
Ties: 1938, 1939, 1944, 1989, 1991, 2004, 2010, 2011
Jun 1983–May 1988
60-Month
55.7°F
(13.2°C)
55.3°F
(12.9°C)
0.4°F
(0.3°C)
71st Coolest Coolest since: 1987 1979, 1980, 1981
51st Warmest Warmest since: 1976 2020
Ties: 1944, 1954

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published April 2021, retrieved on April 20, 2021 from https://www.ncdc.noaa.gov/cag/