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 May 2021. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, September 1908

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Coolest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 1908
1-Month
69.4°F
(20.8°C)
66.2°F
(19.0°C)
3.2°F
(1.8°C)
106th Coolest Coolest since: 1907 1918
21st Warmest Warmest since: 1906 1925, 1933
Aug–Sep 1908
2-Month
71.2°F
(21.8°C)
69.8°F
(21.0°C)
1.4°F
(0.8°C)
94th Coolest Coolest since: 1907 1967
33rd Warmest Warmest since: 1906 1936
Ties: 1937, 2015
Jul–Sep 1908
3-Month
72.4°F
(22.4°C)
71.7°F
(22.1°C)
0.7°F
(0.3°C)
83rd Coolest Coolest since: 1907 1967
44th Warmest Warmest since: 1906 1936
Ties: 1911, 1922, 1926, 1937
Jun–Sep 1908
4-Month
71.8°F
(22.1°C)
71.7°F
(22.1°C)
0.1°F
(0.0°C)
68th Coolest Coolest since: 1907 1915, 1924
59th Warmest Warmest since: 1906 1936
Ties: 1899, 1916, 1923, 1960, 1964
May–Sep 1908
5-Month
69.9°F
(21.1°C)
69.7°F
(20.9°C)
0.2°F
(0.2°C)
66th Coolest Coolest since: 1907 1924
61st Warmest Warmest since: 1906 1936
Ties: 1916, 1965, 2000, 2001
Apr–Sep 1908
6-Month
66.8°F
(19.3°C)
66.7°F
(19.3°C)
0.1°F
(0.0°C)
67th Coolest Coolest since: 1907 1907
60th Warmest Warmest since: 1906 2010
Ties: 1898, 1937, 1949, 1957, 1995, 2000
Mar–Sep 1908
7-Month
63.5°F
(17.5°C)
62.9°F
(17.2°C)
0.6°F
(0.3°C)
85th Coolest Coolest since: 1907 1924
42nd Warmest Warmest since: 1896 2012
Ties: 1895, 1896, 1913, 1963, 1995, 1999, 2001, 2004
Feb–Sep 1908
8-Month
59.0°F
(15.0°C)
58.6°F
(14.8°C)
0.4°F
(0.2°C)
74th Coolest Coolest since: 1907 1904
53rd Warmest Warmest since: 1898 2012
Ties: 1948, 1981
Jan–Sep 1908
9-Month
55.6°F
(13.1°C)
55.0°F
(12.8°C)
0.6°F
(0.3°C)
83rd Coolest Coolest since: 1907 1904, 1912
44th Warmest Warmest since: 1898 2012
Ties: 1914, 1959, 2001
Dec 1907–Sep 1908
10-Month
53.2°F
(11.8°C)
52.4°F
(11.3°C)
0.8°F
(0.5°C)
83rd Coolest Coolest since: 1907 1904
43rd Warmest Warmest since: 1896 2012
Ties: 1913, 1949, 1976
Nov 1907–Sep 1908
11-Month
51.9°F
(11.1°C)
51.4°F
(10.8°C)
0.5°F
(0.3°C)
81st Coolest Coolest since: 1907 1904
45th Warmest Warmest since: 1896 2012
Ties: 1944, 1973, 1990
Oct 1907–Sep 1908
12-Month
51.8°F
(11.0°C)
51.6°F
(10.9°C)
0.2°F
(0.1°C)
65th Coolest Coolest since: 1907 1904
61st Warmest Warmest since: 1901 2012
Ties: 1947, 1973, 2008
Apr 1907–Sep 1908
18-Month
55.6°F
(13.1°C)
56.7°F
(13.7°C)
-1.1°F
(-0.6°C)
19th Coolest Coolest since: 1905 1904, 1918
107th Warmest Warmest since: 1907 2012
Ties: 1967, 1996
Oct 1906–Sep 1908
24-Month
51.2°F
(10.7°C)
51.6°F
(10.9°C)
-0.4°F
(-0.2°C)
38th Coolest Coolest since: 1907 1979
87th Warmest Warmest since: 1901 2017
Ties: 1966, 1985
Oct 1905–Sep 1908
36-Month
51.3°F
(10.7°C)
51.6°F
(10.9°C)
-0.3°F
(-0.2°C)
39th Coolest Coolest since: 1907 1979
85th Warmest Warmest since: 1898 2018
Ties: 1909, 1914, 1964, 1972, 1996, 1997
Oct 1904–Sep 1908
48-Month
51.0°F
(10.6°C)
51.6°F
(10.9°C)
-0.6°F
(-0.3°C)
21st Coolest Coolest since: 1907 1905
102nd Warmest Warmest since: 1903 2019
Ties: 1962, 1969
Oct 1903–Sep 1908
60-Month
50.4°F
(10.2°C)
51.6°F
(10.9°C)
-1.2°F
(-0.7°C)
4th Coolest Coolest since: 1907 1906
118th Warmest Warmest since: 1907 2020
Ties: 1907, 1981

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published June 2021, retrieved on June 12, 2021 from https://www.ncdc.noaa.gov/cag/