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 September 2020. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, September 1985

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 1985
1-Month
66.7°F
(19.3°C)
66.2°F
(19.0°C)
0.5°F
(0.3°C)
71st Coolest Coolest since: 1984 1918
56th Warmest Warmest since: 1983 1925, 1933
Ties: 1944
Aug–Sep 1985
2-Month
68.6°F
(20.3°C)
69.8°F
(21.0°C)
-1.2°F
(-0.7°C)
32nd Coolest Coolest since: 1982 1967
95th Warmest Warmest since: 1984 1936
Ties: 1963, 1997
Jul–Sep 1985
3-Month
70.5°F
(21.4°C)
71.7°F
(22.1°C)
-1.2°F
(-0.7°C)
24th Coolest Coolest since: 1982 1967
103rd Warmest Warmest since: 1984 1936
Ties: 1896, 1927, 1989
Jun–Sep 1985
4-Month
70.1°F
(21.2°C)
71.6°F
(22.0°C)
-1.5°F
(-0.8°C)
20th Coolest Coolest since: 1982 1915, 1924
107th Warmest Warmest since: 1984 1936
Ties: 1929, 1976
May–Sep 1985
5-Month
69.0°F
(20.6°C)
69.7°F
(20.9°C)
-0.7°F
(-0.3°C)
32nd Coolest Coolest since: 1981 1924
95th Warmest Warmest since: 1984 1936
Ties: 1968, 2004
Apr–Sep 1985
6-Month
67.0°F
(19.4°C)
66.7°F
(19.3°C)
0.3°F
(0.1°C)
71st Coolest Coolest since: 1984 1907
56th Warmest Warmest since: 1983 2010
Mar–Sep 1985
7-Month
63.8°F
(17.7°C)
62.9°F
(17.2°C)
0.9°F
(0.5°C)
93rd Coolest Coolest since: 1984 1924
34th Warmest Warmest since: 1977 2012
Ties: 1973, 2002
Feb–Sep 1985
8-Month
58.8°F
(14.9°C)
58.6°F
(14.8°C)
0.2°F
(0.1°C)
69th Coolest Coolest since: 1984 1904
58th Warmest Warmest since: 1983 2012
Ties: 1927, 1945, 1949, 2009
Jan–Sep 1985
9-Month
54.3°F
(12.4°C)
54.9°F
(12.7°C)
-0.6°F
(-0.3°C)
39th Coolest Coolest since: 1984 1904, 1912
88th Warmest Warmest since: 1983 2012
Ties: 1903, 1923, 1965, 1972, 2008
Dec 1984–Sep 1985
10-Month
52.5°F
(11.4°C)
52.4°F
(11.3°C)
0.1°F
(0.1°C)
69th Coolest Coolest since: 1984 1904
57th Warmest Warmest since: 1983 2012
Ties: 1937, 1948, 2011, 2015
Nov 1984–Sep 1985
11-Month
51.4°F
(10.8°C)
51.3°F
(10.7°C)
0.1°F
(0.1°C)
63rd Coolest Coolest since: 1984 1904
63rd Warmest Warmest since: 1983 2012
Ties: 1897, 1909
Oct 1984–Sep 1985
12-Month
52.0°F
(11.1°C)
51.7°F
(10.9°C)
0.3°F
(0.2°C)
75th Coolest Coolest since: 1984 1904
51st Warmest Warmest since: 1983 2012
Ties: 1901, 1944, 1946, 1959, 1992, 2013, 2019
Apr 1984–Sep 1985
18-Month
56.6°F
(13.7°C)
56.6°F
(13.7°C)
0.0°F
(0.0°C)
53rd Coolest Coolest since: 1984 1904, 1918
73rd Warmest Warmest since: 1983 2012
Ties: 1925, 1930, 1943, 1966, 1971, 1973
Oct 1983–Sep 1985
24-Month
51.2°F
(10.7°C)
51.7°F
(10.9°C)
-0.5°F
(-0.2°C)
38th Coolest Coolest since: 1982 1979
87th Warmest Warmest since: 1984 2017
Ties: 1908, 1966
Oct 1982–Sep 1985
36-Month
51.9°F
(11.1°C)
51.6°F
(10.9°C)
0.3°F
(0.2°C)
74th Coolest Coolest since: 1984 1979
50th Warmest Warmest since: 1976 2018
Ties: 1915, 1948, 2016
Oct 1981–Sep 1985
48-Month
51.4°F
(10.8°C)
51.6°F
(10.9°C)
-0.2°F
(-0.1°C)
44th Coolest Coolest since: 1984 1905
79th Warmest Warmest since: 1983 2019
Ties: 1901, 1952, 1966
Oct 1980–Sep 1985
60-Month
51.4°F
(10.8°C)
51.5°F
(10.8°C)
-0.1°F
(0.0°C)
41st Coolest Coolest since: 1984 1906
81st Warmest Warmest since: 1984 2020
Ties: 1901, 1915, 1917, 1921, 1926, 1951, 1968, 1984, 1996

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2020, retrieved on October 22, 2020 from https://www.ncdc.noaa.gov/cag/