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


Illinois

Average Temperature Rankings, September 1937

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 1937
1-Month
65.3°F
(18.5°C)
66.2°F
(19.0°C)
-0.9°F
(-0.5°C)
43rd Coolest Coolest since: 1934 1918
84th Warmest Warmest since: 1936 1925, 1933
Ties: 1994
Aug–Sep 1937
2-Month
71.2°F
(21.8°C)
69.9°F
(21.1°C)
1.3°F
(0.7°C)
94th Coolest Coolest since: 1935 1967
33rd Warmest Warmest since: 1936 1936
Ties: 1908, 2015
Jul–Sep 1937
3-Month
72.4°F
(22.4°C)
71.7°F
(22.1°C)
0.7°F
(0.3°C)
83rd Coolest Coolest since: 1932 1967
44th Warmest Warmest since: 1936 1936
Ties: 1908, 1911, 1922, 1926
Jun–Sep 1937
4-Month
72.0°F
(22.2°C)
71.6°F
(22.0°C)
0.4°F
(0.2°C)
76th Coolest Coolest since: 1935 1915, 1924
51st Warmest Warmest since: 1936 1936
Ties: 1906, 1940, 1948, 2015, 2017
May–Sep 1937
5-Month
70.1°F
(21.2°C)
69.7°F
(20.9°C)
0.4°F
(0.3°C)
73rd Coolest Coolest since: 1935 1924
54th Warmest Warmest since: 1936 1936
Ties: 1899
Apr–Sep 1937
6-Month
66.8°F
(19.3°C)
66.7°F
(19.3°C)
0.1°F
(0.0°C)
67th Coolest Coolest since: 1935 1907
60th Warmest Warmest since: 1936 2010
Ties: 1898, 1908, 1949, 1957, 1995, 2000
Mar–Sep 1937
7-Month
62.5°F
(16.9°C)
62.9°F
(17.2°C)
-0.4°F
(-0.3°C)
46th Coolest Coolest since: 1935 1924
81st Warmest Warmest since: 1936 2012
Ties: 1897, 1903, 1935, 1978, 2009
Feb–Sep 1937
8-Month
58.1°F
(14.5°C)
58.6°F
(14.8°C)
-0.5°F
(-0.3°C)
43rd Coolest Coolest since: 1929 1904
84th Warmest Warmest since: 1936 2012
Ties: 1984, 1997, 2003, 2015
Jan–Sep 1937
9-Month
54.6°F
(12.6°C)
55.0°F
(12.8°C)
-0.4°F
(-0.2°C)
52nd Coolest Coolest since: 1929 1904, 1912
75th Warmest Warmest since: 1936 2012
Ties: 1897, 1909
Dec 1936–Sep 1937
10-Month
52.5°F
(11.4°C)
52.5°F
(11.4°C)
0.0°F
(0.0°C)
69th Coolest Coolest since: 1936 1904
57th Warmest Warmest since: 1934 2012
Ties: 1948, 1985, 2011, 2015
Nov 1936–Sep 1937
11-Month
51.1°F
(10.6°C)
51.4°F
(10.8°C)
-0.3°F
(-0.2°C)
50th Coolest Coolest since: 1936 1904
76th Warmest Warmest since: 1935 2012
Ties: 1923, 1943, 1975
Oct 1936–Sep 1937
12-Month
51.3°F
(10.7°C)
51.6°F
(10.9°C)
-0.3°F
(-0.2°C)
44th Coolest Coolest since: 1936 1904
82nd Warmest Warmest since: 1936 2012
Ties: 1897, 1928, 1936, 1956, 1975, 2001
Apr 1936–Sep 1937
18-Month
57.5°F
(14.2°C)
56.7°F
(13.7°C)
0.8°F
(0.5°C)
93rd Coolest Coolest since: 1936 1904, 1918
33rd Warmest Warmest since: 1935 2012
Ties: 1983, 1995, 2019
Oct 1935–Sep 1937
24-Month
51.3°F
(10.7°C)
51.6°F
(10.9°C)
-0.3°F
(-0.2°C)
41st Coolest Coolest since: 1929 1979
84th Warmest Warmest since: 1936 2017
Ties: 1910, 1919
Oct 1934–Sep 1937
36-Month
51.6°F
(10.9°C)
51.6°F
(10.9°C)
0.0°F
(0.0°C)
55th Coolest Coolest since: 1930 1979
69th Warmest Warmest since: 1936 2018
Ties: 1916, 1947, 1953, 1959, 1983, 1995, 1998
Oct 1933–Sep 1937
48-Month
51.9°F
(11.1°C)
51.6°F
(10.9°C)
0.3°F
(0.2°C)
73rd Coolest Coolest since: 1931 1905
50th Warmest Warmest since: 1936 2019
Ties: 1921, 1938, 1943, 1975, 1994, 2016
Oct 1932–Sep 1937
60-Month
52.1°F
(11.2°C)
51.6°F
(10.9°C)
0.5°F
(0.3°C)
78th Coolest Coolest since: 1931 1906
44th Warmest Warmest since: 1936 2020
Ties: 1938, 1945, 1954, 1993, 2015

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published April 2021, retrieved on April 14, 2021 from https://www.ncdc.noaa.gov/cag/