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 2021. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, September 1931

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 1931
1-Month
72.0°F
(22.2°C)
66.2°F
(19.0°C)
5.8°F
(3.2°C)
124th Coolest Coolest since: 1930 1918
3rd Warmest Warmest since: 1925 1925, 1933
Aug–Sep 1931
2-Month
72.7°F
(22.6°C)
69.8°F
(21.0°C)
2.9°F
(1.6°C)
116th Coolest Coolest since: 1930 1967
11th Warmest Warmest since: 1925 1936
Jul–Sep 1931
3-Month
74.7°F
(23.7°C)
71.8°F
(22.1°C)
2.9°F
(1.6°C)
123rd Coolest Coolest since: 1930 1967
4th Warmest Warmest to Date 1936
Jun–Sep 1931
4-Month
74.7°F
(23.7°C)
71.7°F
(22.1°C)
3.0°F
(1.6°C)
124th Coolest Coolest since: 1930 1915, 1924
3rd Warmest Warmest to Date 1936
May–Sep 1931
5-Month
71.4°F
(21.9°C)
69.7°F
(20.9°C)
1.7°F
(1.0°C)
104th Coolest Coolest since: 1930 1924
23rd Warmest Warmest since: 1921 1936
Ties: 1913, 1955
Apr–Sep 1931
6-Month
68.2°F
(20.1°C)
66.7°F
(19.3°C)
1.5°F
(0.8°C)
103rd Coolest Coolest since: 1929 1907
24th Warmest Warmest since: 1930 2010
Ties: 1911, 1986, 2002
Mar–Sep 1931
7-Month
63.6°F
(17.6°C)
62.9°F
(17.2°C)
0.7°F
(0.4°C)
87th Coolest Coolest since: 1929 1924
40th Warmest Warmest since: 1930 2012
Ties: 2019
Feb–Sep 1931
8-Month
60.2°F
(15.7°C)
58.7°F
(14.8°C)
1.5°F
(0.9°C)
109th Coolest Coolest since: 1929 1904
18th Warmest Warmest since: 1930 2012
Ties: 1953, 1986, 1999, 2002, 2007, 2018
Jan–Sep 1931
9-Month
57.0°F
(13.9°C)
55.0°F
(12.8°C)
2.0°F
(1.1°C)
113th Coolest Coolest since: 1930 1904, 1912
14th Warmest Warmest since: 1921 2012
Ties: 1990
Dec 1930–Sep 1931
10-Month
54.3°F
(12.4°C)
52.4°F
(11.3°C)
1.9°F
(1.1°C)
106th Coolest Coolest since: 1930 1904
20th Warmest Warmest since: 1921 2012
Ties: 1934, 2006
Nov 1930–Sep 1931
11-Month
53.1°F
(11.7°C)
51.3°F
(10.7°C)
1.8°F
(1.0°C)
106th Coolest Coolest since: 1930 1904
20th Warmest Warmest since: 1921 2012
Ties: 1955
Oct 1930–Sep 1931
12-Month
53.0°F
(11.7°C)
51.6°F
(10.9°C)
1.4°F
(0.8°C)
104th Coolest Coolest since: 1930 1904
22nd Warmest Warmest since: 1925 2012
Ties: 1925, 1941, 1953
Apr 1930–Sep 1931
18-Month
58.2°F
(14.6°C)
56.7°F
(13.7°C)
1.5°F
(0.9°C)
109th Coolest Coolest since: 1930 1904, 1918
17th Warmest Warmest since: 1922 2012
Ties: 1942
Oct 1929–Sep 1931
24-Month
52.6°F
(11.4°C)
51.7°F
(10.9°C)
0.9°F
(0.5°C)
99th Coolest Coolest since: 1930 1979
26th Warmest Warmest since: 1922 2017
Ties: 1914, 1935, 1953, 2001, 2011
Oct 1928–Sep 1931
36-Month
52.0°F
(11.1°C)
51.6°F
(10.9°C)
0.4°F
(0.2°C)
80th Coolest Coolest since: 1930 1979
44th Warmest Warmest since: 1923 2018
Ties: 1949, 1974, 1976, 1990, 2010
Oct 1927–Sep 1931
48-Month
51.8°F
(11.0°C)
51.6°F
(10.9°C)
0.2°F
(0.1°C)
66th Coolest Coolest since: 1930 1905
57th Warmest Warmest since: 1925 2019
Ties: 1916, 1925, 1945, 1950, 1958, 1974
Oct 1926–Sep 1931
60-Month
51.7°F
(10.9°C)
51.6°F
(10.9°C)
0.1°F
(0.0°C)
57th Coolest Coolest since: 1930 1906
65th Warmest Warmest since: 1925 2020
Ties: 1947, 1953, 1975, 1998

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published July 2021, retrieved on July 30, 2021 from https://www.ncdc.noaa.gov/cag/