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 April 2020. 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
(1895-2019)
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
97th 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)
55th Coolest Coolest since: 1999 1967
71st 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
67th 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
80th 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)
66th Coolest Coolest since: 2000 1924
60th 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)
90th Coolest Coolest since: 2000 1907
36th 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)
84th Coolest Coolest since: 1999 1924
42nd 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)
84th Coolest Coolest since: 1997 1904
42nd 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
43rd Warmest Warmest since: 2000 2012
Ties: 1908, 1914, 1959, 2019
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
87th 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
94th 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
81st 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
77th 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)
98th Coolest Coolest since: 1998 1979
26th 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)
107th 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)
116th 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
15th Warmest Warmest since: 1991 2002
Ties: 1933, 1936, 1956, 2004, 2005, 2018

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published May 2020, retrieved on May 29, 2020 from https://www.ncdc.noaa.gov/cag/