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


Illinois

Average Temperature Rankings, September 2000

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 2000
1-Month
66.3°F
(19.1°C)
66.2°F
(19.0°C)
0.1°F
(0.1°C)
65th Coolest Coolest since: 1999 1918
61st Warmest Warmest since: 1998 1925, 1933
Ties: 1964, 1997
Aug–Sep 2000
2-Month
70.4°F
(21.3°C)
69.8°F
(21.0°C)
0.6°F
(0.3°C)
77th Coolest Coolest since: 1999 1967
49th Warmest Warmest since: 1998 1936
Ties: 1914, 1935, 1961, 1971, 1987
Jul–Sep 2000
3-Month
71.4°F
(21.9°C)
71.8°F
(22.1°C)
-0.4°F
(-0.2°C)
51st Coolest Coolest since: 1997 1967
75th Warmest Warmest since: 1999 1936
Ties: 1964, 1972, 2003
Jun–Sep 2000
4-Month
71.1°F
(21.7°C)
71.6°F
(22.0°C)
-0.5°F
(-0.3°C)
44th Coolest Coolest since: 1997 1915, 1924
82nd Warmest Warmest since: 1999 1936
Ties: 1909
May–Sep 2000
5-Month
69.9°F
(21.1°C)
69.7°F
(20.9°C)
0.2°F
(0.2°C)
66th Coolest Coolest since: 1997 1924
60th Warmest Warmest since: 1999 1936
Ties: 1908, 1916, 1965, 2001
Apr–Sep 2000
6-Month
66.8°F
(19.3°C)
66.7°F
(19.3°C)
0.1°F
(0.0°C)
63rd Coolest Coolest since: 1997 1907
63rd Warmest Warmest since: 1999 2010
Ties: 1898, 1908, 1937, 1949, 1957, 1995
Mar–Sep 2000
7-Month
63.9°F
(17.7°C)
62.9°F
(17.2°C)
1.0°F
(0.5°C)
97th Coolest Coolest since: 1999 1924
29th Warmest Warmest since: 1998 2012
Ties: 1914, 1939, 1946, 1953
Feb–Sep 2000
8-Month
60.6°F
(15.9°C)
58.7°F
(14.8°C)
1.9°F
(1.1°C)
111th Coolest Coolest since: 1999 1904
15th Warmest Warmest since: 1998 2012
Jan–Sep 2000
9-Month
56.9°F
(13.8°C)
55.0°F
(12.8°C)
1.9°F
(1.0°C)
110th Coolest Coolest since: 1999 1904, 1912
16th Warmest Warmest since: 1998 2012
Ties: 1925, 1953, 2007
Dec 1999–Sep 2000
10-Month
54.5°F
(12.5°C)
52.5°F
(11.4°C)
2.0°F
(1.1°C)
111th Coolest Coolest since: 1999 1904
14th Warmest Warmest since: 1998 2012
Ties: 1953, 1983
Nov 1999–Sep 2000
11-Month
53.9°F
(12.2°C)
51.4°F
(10.8°C)
2.5°F
(1.4°C)
115th Coolest Coolest since: 1999 1904
10th Warmest Warmest since: 1998 2012
Oct 1999–Sep 2000
12-Month
54.0°F
(12.2°C)
51.7°F
(10.9°C)
2.3°F
(1.3°C)
115th Coolest Coolest since: 1999 1904
10th Warmest Warmest since: 1998 2012
Ties: 1991
Apr 1999–Sep 2000
18-Month
58.5°F
(14.7°C)
56.6°F
(13.7°C)
1.9°F
(1.0°C)
115th Coolest Coolest since: 1998 1904, 1918
10th Warmest Warmest since: 1999 2012
Ties: 1921
Oct 1998–Sep 2000
24-Month
53.8°F
(12.1°C)
51.6°F
(10.9°C)
2.2°F
(1.2°C)
116th Coolest Coolest since: 1998 1979
8th Warmest Warmest since: 1999 2017
Oct 1997–Sep 2000
36-Month
54.0°F
(12.2°C)
51.6°F
(10.9°C)
2.4°F
(1.3°C)
121st Coolest Coolest since: 1999 1979
2nd Warmest Warmest to Date 2018
Oct 1996–Sep 2000
48-Month
53.1°F
(11.7°C)
51.6°F
(10.9°C)
1.5°F
(0.8°C)
113th Coolest Coolest since: 1999 1905
9th Warmest Warmest since: 1955 2019
Ties: 1933, 1935, 1955, 2005, 2012
Oct 1995–Sep 2000
60-Month
52.5°F
(11.4°C)
51.6°F
(10.9°C)
0.9°F
(0.5°C)
97th Coolest Coolest since: 1999 1906
24th Warmest Warmest since: 1991 2002
Ties: 1925, 1942, 2014, 2017

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published July 2020, retrieved on August 3, 2020 from https://www.ncdc.noaa.gov/cag/