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


Illinois, Climate Division 3. West

Average Temperature Rankings, September 1940

View Period (Months):All1234567891011121824364860
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 1940
1-Month
66.2°F
(19.0°C)
66.1°F
(18.9°C)
0.1°F
(0.1°C)
64th Coolest Coolest since: 1937 1918
62nd Warmest Warmest since: 1939 1931, 1933
Ties: 1956
Aug–Sep 1940
2-Month
69.7°F
(20.9°C)
69.9°F
(21.1°C)
-0.2°F
(-0.2°C)
62nd Coolest Coolest since: 1934 1967
64th Warmest Warmest since: 1939 1936
Ties: 1899
Jul–Sep 1940
3-Month
72.2°F
(22.3°C)
71.9°F
(22.2°C)
0.3°F
(0.1°C)
77th Coolest Coolest since: 1932 1967
49th Warmest Warmest since: 1939 1936
Ties: 2006
Jun–Sep 1940
4-Month
72.4°F
(22.4°C)
71.8°F
(22.1°C)
0.6°F
(0.3°C)
83rd Coolest Coolest since: 1935 1992
43rd Warmest Warmest since: 1939 1936
Ties: 1956, 1978
May–Sep 1940
5-Month
69.9°F
(21.1°C)
69.9°F
(21.1°C)
0.0°F
(0.0°C)
57th Coolest Coolest since: 1935 1924, 1967
69th Warmest Warmest since: 1939 1936
Ties: 1905, 1908, 1923, 1963, 2000, 2017
Apr–Sep 1940
6-Month
66.5°F
(19.2°C)
66.8°F
(19.3°C)
-0.3°F
(-0.1°C)
50th Coolest Coolest since: 1935 1907
76th Warmest Warmest since: 1939 1936
Ties: 1981
Mar–Sep 1940
7-Month
62.1°F
(16.7°C)
62.9°F
(17.2°C)
-0.8°F
(-0.5°C)
38th Coolest Coolest since: 1928 1924
88th Warmest Warmest since: 1939 1936
Ties: 1927, 1978, 1979
Feb–Sep 1940
8-Month
57.8°F
(14.3°C)
58.5°F
(14.7°C)
-0.7°F
(-0.4°C)
37th Coolest Coolest since: 1929 1904
89th Warmest Warmest since: 1939 2012
Ties: 1906, 1916, 1972
Jan–Sep 1940
9-Month
52.6°F
(11.4°C)
54.7°F
(12.6°C)
-2.1°F
(-1.2°C)
9th Coolest Coolest since: 1924 1904
117th Warmest Warmest since: 1939 2012
Ties: 1899, 1958
Dec 1939–Sep 1940
10-Month
50.7°F
(10.4°C)
52.0°F
(11.1°C)
-1.3°F
(-0.7°C)
19th Coolest Coolest since: 1924 1904
106th Warmest Warmest since: 1939 2012
Ties: 1965
Nov 1939–Sep 1940
11-Month
49.8°F
(9.9°C)
51.0°F
(10.6°C)
-1.2°F
(-0.7°C)
23rd Coolest Coolest since: 1924 1904
102nd Warmest Warmest since: 1939 2012
Ties: 1969, 1970
Oct 1939–Sep 1940
12-Month
50.3°F
(10.2°C)
51.2°F
(10.7°C)
-0.9°F
(-0.5°C)
28th Coolest Coolest since: 1926 1904
97th Warmest Warmest since: 1939 2012
Ties: 1907, 1965, 2001, 2003, 2009
Apr 1939–Sep 1940
18-Month
56.2°F
(13.4°C)
56.5°F
(13.6°C)
-0.3°F
(-0.2°C)
46th Coolest Coolest since: 1936 1904
79th Warmest Warmest since: 1939 2012
Ties: 1943, 1950, 1963, 1965, 1971, 1973, 1974, 1985
Oct 1938–Sep 1940
24-Month
51.8°F
(11.0°C)
51.2°F
(10.7°C)
0.6°F
(0.3°C)
90th Coolest Coolest since: 1938 1979
34th Warmest Warmest since: 1939 2017
Ties: 2008
Oct 1937–Sep 1940
36-Month
52.0°F
(11.1°C)
51.2°F
(10.7°C)
0.8°F
(0.4°C)
93rd Coolest Coolest since: 1938 1979
30th Warmest Warmest since: 1939 2018
Ties: 1936, 1957, 2004, 2005
Oct 1936–Sep 1940
48-Month
51.8°F
(11.0°C)
51.2°F
(10.7°C)
0.6°F
(0.3°C)
89th Coolest Coolest since: 1938 1905
33rd Warmest Warmest since: 1939 1934
Ties: 1937, 1954, 1992, 2009
Oct 1935–Sep 1940
60-Month
51.6°F
(10.9°C)
51.2°F
(10.7°C)
0.4°F
(0.2°C)
77th Coolest Coolest since: 1931 1906, 1982
44th Warmest Warmest since: 1939 1934
Ties: 1944, 1954, 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published August 2020, retrieved on August 14, 2020 from https://www.ncdc.noaa.gov/cag/