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 2022. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, September 2001

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
September 2001
1-Month
64.4°F
(18.0°C)
66.2°F
(19.0°C)
-1.8°F
(-1.0°C)
29th Coolest Coolest since: 1996 1918
99th Warmest Warmest since: 2000 1925, 1933
Ties: 1942
Aug–Sep 2001
2-Month
69.5°F
(20.8°C)
69.8°F
(21.0°C)
-0.3°F
(-0.2°C)
56th Coolest Coolest since: 1999 1967
72nd Warmest Warmest since: 2000 1936
Ties: 1984
Jul–Sep 2001
3-Month
71.6°F
(22.0°C)
71.7°F
(22.1°C)
-0.1°F
(-0.1°C)
59th Coolest Coolest since: 2000 1967
69th Warmest Warmest since: 1999 1936
Ties: 1923, 1957
Jun–Sep 2001
4-Month
71.2°F
(21.8°C)
71.7°F
(22.1°C)
-0.5°F
(-0.3°C)
46th Coolest Coolest since: 2000 1915, 1924
82nd Warmest Warmest since: 1999 1936
Ties: 1926, 1963
May–Sep 2001
5-Month
69.9°F
(21.1°C)
69.7°F
(20.9°C)
0.2°F
(0.2°C)
64th Coolest Coolest since: 2000 1924
64th Warmest Warmest since: 2000 1936
Ties: 1908, 1916, 1965, 2000
Apr–Sep 2001
6-Month
67.8°F
(19.9°C)
66.7°F
(19.3°C)
1.1°F
(0.6°C)
91st Coolest Coolest since: 2000 1907
37th Warmest Warmest since: 1998 2010
Ties: 1895, 2017
Mar–Sep 2001
7-Month
63.5°F
(17.5°C)
62.9°F
(17.2°C)
0.6°F
(0.3°C)
85th Coolest Coolest since: 1999 1924
43rd Warmest Warmest since: 2000 2012
Ties: 1895, 1896, 1908, 1913, 1963, 1995, 1999, 2004
Feb–Sep 2001
8-Month
59.4°F
(15.2°C)
58.7°F
(14.8°C)
0.7°F
(0.4°C)
85th Coolest Coolest since: 1997 1904
43rd Warmest Warmest since: 2000 2012
Ties: 1944, 1957, 1964
Jan–Sep 2001
9-Month
55.6°F
(13.1°C)
54.9°F
(12.7°C)
0.7°F
(0.4°C)
83rd Coolest Coolest since: 1997 1904, 1912
45th Warmest Warmest since: 2000 2012
Ties: 1908, 1914, 1959
Dec 2000–Sep 2001
10-Month
51.8°F
(11.0°C)
52.4°F
(11.3°C)
-0.6°F
(-0.3°C)
38th Coolest Coolest since: 1997 1904
89th Warmest Warmest since: 2000 2012
Ties: 1993, 2009
Nov 2000–Sep 2001
11-Month
50.7°F
(10.4°C)
51.4°F
(10.8°C)
-0.7°F
(-0.4°C)
31st Coolest Coolest since: 1997 1904
96th Warmest Warmest since: 2000 2012
Ties: 1927, 1928, 1961, 1967
Oct 2000–Sep 2001
12-Month
51.3°F
(10.7°C)
51.7°F
(10.9°C)
-0.4°F
(-0.2°C)
44th Coolest Coolest since: 1997 1904
83rd Warmest Warmest since: 2000 2012
Ties: 1897, 1928, 1936, 1937, 1956, 1975
Apr 2000–Sep 2001
18-Month
56.5°F
(13.6°C)
56.7°F
(13.7°C)
-0.2°F
(-0.1°C)
48th Coolest Coolest since: 1997 1904, 1918
79th Warmest Warmest since: 2000 2012
Ties: 1906, 1947, 1950, 1959
Oct 1999–Sep 2001
24-Month
52.6°F
(11.4°C)
51.6°F
(10.9°C)
1.0°F
(0.5°C)
99th Coolest Coolest since: 1998 1979
27th Warmest Warmest since: 2000 2017
Ties: 1914, 1931, 1935, 1953, 2011
Oct 1998–Sep 2001
36-Month
53.0°F
(11.7°C)
51.6°F
(10.9°C)
1.4°F
(0.8°C)
109th Coolest Coolest since: 1999 1979
16th Warmest Warmest since: 2000 2018
Ties: 2008
Oct 1997–Sep 2001
48-Month
53.3°F
(11.8°C)
51.6°F
(10.9°C)
1.7°F
(0.9°C)
118th Coolest Coolest since: 2000 1905
6th Warmest Warmest since: 1934 2019
Ties: 1934, 2008
Oct 1996–Sep 2001
60-Month
52.7°F
(11.5°C)
51.6°F
(10.9°C)
1.1°F
(0.6°C)
106th Coolest Coolest since: 2000 1906
17th Warmest Warmest since: 1991 2020
Ties: 1933, 1936, 1956, 2004, 2005, 2018

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Average Temperature, published September 2022, retrieved on September 25, 2022 from https://www.ncdc.noaa.gov/cag/