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 1985

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
May 1985
1-Month
66.2°F
(19.0°C)
65.1°F
(18.4°C)
1.1°F
(0.6°C)
80th Coolest Coolest since: 1984 1917, 1924
47th Warmest Warmest since: 1982 2018
Ties: 1950
Apr–May 1985
2-Month
62.6°F
(17.0°C)
60.1°F
(15.6°C)
2.5°F
(1.4°C)
105th Coolest Coolest since: 1984 1907
22nd Warmest Warmest since: 1977 1896
Mar–May 1985
3-Month
58.1°F
(14.5°C)
55.0°F
(12.8°C)
3.1°F
(1.7°C)
115th Coolest Coolest since: 1984 1960
12th Warmest Warmest since: 1977 2012
Feb–May 1985
4-Month
51.0°F
(10.6°C)
50.0°F
(10.0°C)
1.0°F
(0.6°C)
83rd Coolest Coolest since: 1984 1978
44th Warmest Warmest since: 1981 2012
Ties: 1981, 2019
Jan–May 1985
5-Month
45.4°F
(7.4°C)
46.2°F
(7.9°C)
-0.8°F
(-0.5°C)
39th Coolest Coolest since: 1984 1978
88th Warmest Warmest since: 1983 2012
Ties: 1937, 1983, 1994, 2015
Dec 1984–May 1985
6-Month
44.8°F
(7.1°C)
44.3°F
(6.8°C)
0.5°F
(0.3°C)
73rd Coolest Coolest since: 1984 1978
53rd Warmest Warmest since: 1983 2012
Ties: 1909, 1983, 2018
Nov 1984–May 1985
7-Month
44.6°F
(7.0°C)
44.3°F
(6.8°C)
0.3°F
(0.2°C)
68th Coolest Coolest since: 1984 1978
58th Warmest Warmest since: 1983 2012
Ties: 1927, 1959, 1966, 1975
Oct 1984–May 1985
8-Month
46.7°F
(8.2°C)
46.0°F
(7.8°C)
0.7°F
(0.4°C)
83rd Coolest Coolest since: 1984 1978
43rd Warmest Warmest since: 1976 2012
Ties: 1949, 2019
Sep 1984–May 1985
9-Month
48.9°F
(9.4°C)
48.5°F
(9.2°C)
0.4°F
(0.2°C)
74th Coolest Coolest since: 1984 1978
52nd Warmest Warmest since: 1981 2012
Ties: 1903, 1908, 1967, 1981, 1990, 2009, 2010, 2011
Aug 1984–May 1985
10-Month
51.6°F
(10.9°C)
51.2°F
(10.7°C)
0.4°F
(0.2°C)
72nd Coolest Coolest since: 1984 1978
54th Warmest Warmest since: 1981 2012
Ties: 1931, 1950, 1990, 2013
Jul 1984–May 1985
11-Month
53.8°F
(12.1°C)
53.7°F
(12.1°C)
0.1°F
(0.0°C)
59th Coolest Coolest since: 1984 1918
67th Warmest Warmest since: 1981 2012
Ties: 2009
Jun 1984–May 1985
12-Month
55.7°F
(13.2°C)
55.3°F
(12.9°C)
0.4°F
(0.3°C)
71st Coolest Coolest since: 1984 1904, 1918
55th Warmest Warmest since: 1981 2012
Ties: 1925, 1927, 1948, 1989, 2003
Dec 1983–May 1985
18-Month
50.7°F
(10.4°C)
51.7°F
(10.9°C)
-1.0°F
(-0.5°C)
16th Coolest Coolest since: 1980 1979
109th Warmest Warmest since: 1984 2017
Ties: 1929, 1951, 1961, 1977
Jun 1983–May 1985
24-Month
55.1°F
(12.8°C)
55.4°F
(13.0°C)
-0.3°F
(-0.2°C)
34th Coolest Coolest since: 1984 1905, 1978
91st Warmest Warmest since: 1982 2017
Ties: 1925, 1964, 2014
Jun 1982–May 1985
36-Month
55.1°F
(12.8°C)
55.4°F
(13.0°C)
-0.3°F
(-0.2°C)
38th Coolest Coolest since: 1984 1979
86th Warmest Warmest since: 1983 2018
Ties: 1917, 1928, 1931, 1953, 1997
Jun 1981–May 1985
48-Month
54.9°F
(12.7°C)
55.4°F
(13.0°C)
-0.5°F
(-0.3°C)
23rd Coolest Coolest since: 1982 1980
100th Warmest Warmest since: 1984 2019
Ties: 1900, 1929, 1930, 1964, 1996
Jun 1980–May 1985
60-Month
55.2°F
(12.9°C)
55.4°F
(13.0°C)
-0.2°F
(-0.1°C)
47th Coolest Coolest since: 1984 1979, 1980, 1981
75th Warmest Warmest since: 1976 2020
Ties: 1910, 1915, 1931

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published April 2021, retrieved on April 11, 2021 from https://www.ncdc.noaa.gov/cag/