Divisional Rankings

Divisional Data Info
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Illinois, Climate Division 2. Northeast

Average Temperature Rankings, September 1940

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  • Record Warmest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
September 1940
1-Month 		62.6°F
(17.0°C)		 63.7°F
(17.6°C)		 -1.1°F
(-0.6°C)		 38th Coolest
Coolest since:
 1918
91st Warmest
Warmest since:
 1897
Ties: 1984
Aug–Sep 1940
2-Month 		67.1°F
(19.5°C)		 67.4°F
(19.7°C)		 -0.3°F
(-0.2°C)		 51st Coolest
Coolest since:
 1902
78th Warmest
Warmest since:
 1947
Ties: 1956
Jul–Sep 1940
3-Month 		69.4°F
(20.8°C)		 69.3°F
(20.7°C)		 0.1°F
(0.1°C)		 57th Coolest
Coolest since:
 1924
72nd Warmest
Warmest since:
 1936
Ties: 1932, 1977
Jun–Sep 1940
4-Month 		69.4°F
(20.8°C)		 69.2°F
(20.7°C)		 0.2°F
(0.1°C)		 60th Coolest
Coolest since:
 1915
69th Warmest
Warmest since:
 2005
Ties: 1908, 1916, 1938, 1961, 2006
May–Sep 1940
5-Month 		66.5°F
(19.2°C)		 67.1°F
(19.5°C)		 -0.6°F
(-0.3°C)		 33rd Coolest
Coolest since:
 1924
96th Warmest
Warmest since:
 1921, 1988
Ties: 1972, 2004
Apr–Sep 1940
6-Month 		63.0°F
(17.2°C)		 63.9°F
(17.7°C)		 -0.9°F
(-0.5°C)		 29th Coolest
Coolest since:
 1907
100th Warmest
Warmest since:
 1921
Ties: 1958, 1989
Mar–Sep 1940
7-Month 		58.4°F
(14.7°C)		 59.9°F
(15.5°C)		 -1.5°F
(-0.8°C)		 16th Coolest
Coolest since:
 1924
113th Warmest
Warmest since:
 2012
Feb–Sep 1940
8-Month 		54.4°F
(12.4°C)		 55.5°F
(13.1°C)		 -1.1°F
(-0.7°C)		 26th Coolest
Coolest since:
 1904, 1917
103rd Warmest
Warmest since:
 2012
Ties: 1928
Jan–Sep 1940
9-Month 		49.7°F
(9.8°C)		 51.7°F
(10.9°C)		 -2.0°F
(-1.1°C)		 8th Coolest
Coolest since:
 1904, 1912
121st Warmest
Warmest since:
 2012
Dec 1939–Sep 1940
10-Month 		48.0°F
(8.9°C)		 49.1°F
(9.5°C)		 -1.1°F
(-0.6°C)		 23rd Coolest
Coolest since:
 1904
105th Warmest
Warmest since:
 2012
Ties: 1899, 1936, 1943, 1950, 1965, 2009
Nov 1939–Sep 1940
11-Month 		47.1°F
(8.4°C)		 48.2°F
(9.0°C)		 -1.1°F
(-0.6°C)		 24th Coolest
Coolest since:
 1904
104th Warmest
Warmest since:
 2012
Ties: 1943, 1950, 1960, 2009
Oct 1939–Sep 1940
12-Month 		47.6°F
(8.7°C)		 48.5°F
(9.2°C)		 -0.9°F
(-0.5°C)		 30th Coolest
Coolest since:
 1904
98th Warmest
Warmest since:
 2012
Ties: 1927, 1965, 1970
Apr 1939–Sep 1940
18-Month 		53.4°F
(11.9°C)		 53.6°F
(12.0°C)		 -0.2°F
(-0.1°C)		 47th Coolest
Coolest since:
 1904
81st Warmest
Warmest since:
 2012
Ties: 1948, 1959, 1965, 1969
Oct 1938–Sep 1940
24-Month 		48.9°F
(9.4°C)		 48.5°F
(9.2°C)		 0.4°F
(0.2°C)		 80th Coolest
Coolest since:
 1918
47th Warmest
Warmest since:
 2017
Ties: 1898, 1923, 1973, 2004
Oct 1937–Sep 1940
36-Month 		48.9°F
(9.4°C)		 48.4°F
(9.1°C)		 0.5°F
(0.3°C)		 82nd Coolest
Coolest since:
 1979
44th Warmest
Warmest since:
 2000
Ties: 1942, 1943, 2009
Oct 1936–Sep 1940
48-Month 		48.7°F
(9.3°C)		 48.4°F
(9.1°C)		 0.3°F
(0.2°C)		 74th Coolest
Coolest since:
 1905, 1918
51st Warmest
Warmest since:
 2001, 2002, 2019
Ties: 1936, 1939, 1949, 1954, 1958, 1974, 1975, 1983
Oct 1935–Sep 1940
60-Month 		48.5°F
(9.2°C)		 48.5°F
(9.2°C)		 0.0°F
(0.0°C)		 53rd Coolest
Coolest since:
 1905, 1906
71st Warmest
Warmest since:
 2002
Ties: 1900, 1901, 1938, 1948, 1949, 1950, 1974, 1984

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