Climate at a Glance

Divisional 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, Climate Division 7. East Southeast

Average Temperature Rankings, September 1940

View Period (Months):All1234567891011121824364860
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 1940
1-Month
66.0°F
(18.9°C)
67.4°F
(19.7°C)
-1.4°F
(-0.8°C)
39th Coolest Coolest since: 1937 1918
88th Warmest Warmest since: 1939 1925
Ties: 1899
Aug–Sep 1940
2-Month
70.8°F
(21.6°C)
70.8°F
(21.6°C)
0.0°F
(0.0°C)
68th Coolest Coolest since: 1934 1967
59th Warmest Warmest since: 1939 1936
Ties: 1909, 1968, 1990
Jul–Sep 1940
3-Month
72.7°F
(22.6°C)
72.7°F
(22.6°C)
0.0°F
(0.0°C)
68th Coolest Coolest since: 1937 1967
59th Warmest Warmest since: 1939 1936
Ties: 1895, 1899, 2017
Jun–Sep 1940
4-Month
72.8°F
(22.7°C)
72.6°F
(22.6°C)
0.2°F
(0.1°C)
73rd Coolest Coolest since: 1937 1967
54th Warmest Warmest since: 1939 1936
Ties: 1906, 1948, 1964, 1970, 1971, 2017
May–Sep 1940
5-Month
70.2°F
(21.2°C)
70.7°F
(21.5°C)
-0.5°F
(-0.3°C)
46th Coolest Coolest since: 1935 1924
81st Warmest Warmest since: 1939 1936
Ties: 1996, 2004
Apr–Sep 1940
6-Month
67.0°F
(19.4°C)
67.7°F
(19.8°C)
-0.7°F
(-0.4°C)
36th Coolest Coolest since: 1935 1907
91st Warmest Warmest since: 1939 2010
Ties: 1994
Mar–Sep 1940
7-Month
63.0°F
(17.2°C)
64.0°F
(17.8°C)
-1.0°F
(-0.6°C)
28th Coolest Coolest since: 1928 1924
99th Warmest Warmest since: 1939 2012
Ties: 1897, 1966, 2013
Feb–Sep 1940
8-Month
59.0°F
(15.0°C)
59.9°F
(15.5°C)
-0.9°F
(-0.5°C)
27th Coolest Coolest since: 1929 1904, 1924
100th Warmest Warmest since: 1939 2012
Ties: 1915, 1929, 1993
Jan–Sep 1940
9-Month
54.1°F
(12.3°C)
56.4°F
(13.6°C)
-2.3°F
(-1.3°C)
8th Coolest Coolest since: 1924 1979
119th Warmest Warmest since: 1939 2012
Dec 1939–Sep 1940
10-Month
52.2°F
(11.2°C)
53.9°F
(12.2°C)
-1.7°F
(-1.0°C)
16th Coolest Coolest since: 1924 1904
110th Warmest Warmest since: 1939 2012
Ties: 1915
Nov 1939–Sep 1940
11-Month
51.1°F
(10.6°C)
52.8°F
(11.6°C)
-1.7°F
(-1.0°C)
13th Coolest Coolest since: 1920 1904
113th Warmest Warmest since: 1939 2012
Ties: 1984
Oct 1939–Sep 1940
12-Month
51.7°F
(10.9°C)
53.1°F
(11.7°C)
-1.4°F
(-0.8°C)
19th Coolest Coolest since: 1926 1904
107th Warmest Warmest since: 1939 2012
Apr 1939–Sep 1940
18-Month
57.2°F
(14.0°C)
57.9°F
(14.4°C)
-0.7°F
(-0.4°C)
30th Coolest Coolest since: 1929 1918
96th Warmest Warmest since: 1939 2012
Ties: 1963, 1969, 2015
Oct 1938–Sep 1940
24-Month
53.1°F
(11.7°C)
53.0°F
(11.7°C)
0.1°F
(0.0°C)
55th Coolest Coolest since: 1937 1979
70th Warmest Warmest since: 1939 2017
Ties: 1915, 1926, 1941, 1945, 1984, 1990
Oct 1937–Sep 1940
36-Month
53.4°F
(11.9°C)
53.0°F
(11.7°C)
0.4°F
(0.2°C)
77th Coolest Coolest since: 1938 1979
47th Warmest Warmest since: 1939 2018
Ties: 1915, 1931, 1976, 1990
Oct 1936–Sep 1940
48-Month
53.2°F
(11.8°C)
53.0°F
(11.7°C)
0.2°F
(0.1°C)
58th Coolest Coolest since: 1931 1980
65th Warmest Warmest since: 1939 2019
Ties: 1946, 1947, 1953, 1958
Oct 1935–Sep 1940
60-Month
53.2°F
(11.8°C)
53.0°F
(11.7°C)
0.2°F
(0.1°C)
58th Coolest Coolest since: 1931 1982
64th Warmest Warmest since: 1939 2020
Ties: 1947, 1948, 1959, 1975, 1998

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published June 2021, retrieved on June 19, 2021 from https://www.ncdc.noaa.gov/cag/