Statewide Rankings

Statewide Data Info
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Illinois

Average Temperature Rankings, September 1939

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
September 1939
1-Month		71.2°F
(21.8°C)		66.2°F
(19.0°C)		5.0°F
(2.8°C)		123rd Coolest
Coolest since:
1918
6th Warmest
Warmest since:
1925, 1933
Aug–Sep 1939
2-Month		71.8°F
(22.1°C)		69.8°F
(21.0°C)		2.0°F
(1.1°C)		101st Coolest
Coolest since:
1967
28th Warmest
Warmest since:
1936
Ties: 1913
Jul–Sep 1939
3-Month		73.1°F
(22.8°C)		71.7°F
(22.1°C)		1.4°F
(0.7°C)		99th Coolest
Coolest since:
1967
30th Warmest
Warmest since:
1936
Ties: 1919, 1934, 1959
Jun–Sep 1939
4-Month		73.0°F
(22.8°C)		71.7°F
(22.1°C)		1.3°F
(0.7°C)		95th Coolest
Coolest since:
1915, 1924
34th Warmest
Warmest since:
1936
Ties: 1900
May–Sep 1939
5-Month		71.5°F
(21.9°C)		69.7°F
(20.9°C)		1.8°F
(1.0°C)		108th Coolest
Coolest since:
1924
21st Warmest
Warmest since:
1936
Ties: 1980
Apr–Sep 1939
6-Month		67.6°F
(19.8°C)		66.7°F
(19.3°C)		0.9°F
(0.5°C)		84th Coolest
Coolest since:
1907
45th Warmest
Warmest since:
2010
Ties: 1906, 1938, 1970
Mar–Sep 1939
7-Month		63.9°F
(17.7°C)		62.9°F
(17.2°C)		1.0°F
(0.5°C)		98th Coolest
Coolest since:
1924
31st Warmest
Warmest since:
2012
Ties: 1914, 1946, 1953, 2000
Feb–Sep 1939
8-Month		59.5°F
(15.3°C)		58.7°F
(14.8°C)		0.8°F
(0.5°C)		89th Coolest
Coolest since:
1904
40th Warmest
Warmest since:
2012
Ties: 1990, 2020, 2022
Jan–Sep 1939
9-Month		56.5°F
(13.6°C)		54.9°F
(12.7°C)		1.6°F
(0.9°C)		104th Coolest
Coolest since:
1904, 1912
25th Warmest
Warmest since:
2012
Ties: 1946
Dec 1938–Sep 1939
10-Month		53.9°F
(12.2°C)		52.4°F
(11.3°C)		1.5°F
(0.9°C)		101st Coolest
Coolest since:
1904
27th Warmest
Warmest since:
2012
Nov 1938–Sep 1939
11-Month		52.9°F
(11.6°C)		51.4°F
(10.8°C)		1.5°F
(0.8°C)		102nd Coolest
Coolest since:
1904
26th Warmest
Warmest since:
2012
Ties: 1933, 1995
Oct 1938–Sep 1939
12-Month		53.4°F
(11.9°C)		51.6°F
(10.9°C)		1.8°F
(1.0°C)		110th Coolest
Coolest since:
1904
18th Warmest
Warmest since:
2012
Apr 1938–Sep 1939
18-Month		58.1°F
(14.5°C)		56.7°F
(13.7°C)		1.4°F
(0.8°C)		108th Coolest
Coolest since:
1904, 1918
20th Warmest
Warmest since:
2012
Ties: 1988
Oct 1937–Sep 1939
24-Month		53.0°F
(11.7°C)		51.6°F
(10.9°C)		1.4°F
(0.8°C)		107th Coolest
Coolest since:
1979
20th Warmest
Warmest since:
2017
Ties: 1992
Oct 1936–Sep 1939
36-Month		52.5°F
(11.4°C)		51.6°F
(10.9°C)		0.9°F
(0.5°C)		95th Coolest
Coolest since:
1979
31st Warmest
Warmest since:
2018
Ties: 1989, 2014
Oct 1935–Sep 1939
48-Month		52.2°F
(11.2°C)		51.6°F
(10.9°C)		0.6°F
(0.3°C)		84th Coolest
Coolest since:
1905
41st Warmest
Warmest since:
2019
Ties: 1954, 2015
Oct 1934–Sep 1939
60-Month		52.2°F
(11.2°C)		51.6°F
(10.9°C)		0.6°F
(0.3°C)		83rd Coolest
Coolest since:
1906
41st Warmest
Warmest since:
2020
Ties: 1941, 1943, 1988, 1995

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