Divisional Rankings

Divisional Data Info
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Illinois, Climate Division 2. Northeast

Average Temperature Rankings, September 1987

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
September 1987
1-Month		64.0°F
(17.8°C)		63.7°F
(17.6°C)		0.3°F
(0.2°C)		66th Coolest
Coolest since:
1918
63rd Warmest
Warmest since:
1897
Ties: 1997
Aug–Sep 1987
2-Month		67.7°F
(19.8°C)		67.4°F
(19.7°C)		0.3°F
(0.1°C)		63rd Coolest
Coolest since:
1902
66th Warmest
Warmest since:
1947
Ties: 1914, 1958
Jul–Sep 1987
3-Month		70.5°F
(21.4°C)		69.3°F
(20.7°C)		1.2°F
(0.7°C)		92nd Coolest
Coolest since:
1924
37th Warmest
Warmest since:
1936
Ties: 1973, 2011
Jun–Sep 1987
4-Month		71.0°F
(21.7°C)		69.2°F
(20.7°C)		1.8°F
(1.0°C)		109th Coolest
Coolest since:
1915
20th Warmest
Warmest since:
2005
Ties: 1955, 2020
May–Sep 1987
5-Month		69.6°F
(20.9°C)		67.1°F
(19.5°C)		2.5°F
(1.4°C)		117th Coolest
Coolest since:
1924
12th Warmest
Warmest since:
1921, 1988
Ties: 2010, 2016
Apr–Sep 1987
6-Month		66.5°F
(19.2°C)		63.9°F
(17.7°C)		2.6°F
(1.5°C)		121st Coolest
Coolest since:
1907
8th Warmest
Warmest since:
1921
Ties: 1934
Mar–Sep 1987
7-Month		62.8°F
(17.1°C)		59.9°F
(15.5°C)		2.9°F
(1.6°C)		123rd Coolest
Coolest since:
1924
6th Warmest
Warmest since:
2012
Ties: 1977, 2016
Feb–Sep 1987
8-Month		59.0°F
(15.0°C)		55.5°F
(13.1°C)		3.5°F
(1.9°C)		124th Coolest
Coolest since:
1904, 1917
5th Warmest
Warmest since:
2012
Jan–Sep 1987
9-Month		55.2°F
(12.9°C)		51.7°F
(10.9°C)		3.5°F
(2.0°C)		125th Coolest
Coolest since:
1904, 1912
4th Warmest
Warmest since:
2012
Dec 1986–Sep 1987
10-Month		52.7°F
(11.5°C)		49.1°F
(9.5°C)		3.6°F
(2.0°C)		123rd Coolest
Coolest since:
1904
5th Warmest
Warmest since:
2012
Nov 1986–Sep 1987
11-Month		51.1°F
(10.6°C)		48.1°F
(8.9°C)		3.0°F
(1.7°C)		119th Coolest
Coolest since:
1904
9th Warmest
Warmest since:
2012
Oct 1986–Sep 1987
12-Month		51.2°F
(10.7°C)		48.5°F
(9.2°C)		2.7°F
(1.5°C)		120th Coolest
Coolest since:
1904
8th Warmest
Warmest since:
2012
Ties: 1991
Apr 1986–Sep 1987
18-Month		55.9°F
(13.3°C)		53.6°F
(12.0°C)		2.3°F
(1.3°C)		121st Coolest
Coolest since:
1904
7th Warmest
Warmest since:
2012
Ties: 1921
Oct 1985–Sep 1987
24-Month		50.0°F
(10.0°C)		48.5°F
(9.2°C)		1.5°F
(0.8°C)		106th Coolest
Coolest since:
1918
21st Warmest
Warmest since:
2017
Oct 1984–Sep 1987
36-Month		49.7°F
(9.8°C)		48.4°F
(9.1°C)		1.3°F
(0.7°C)		102nd Coolest
Coolest since:
1979
24th Warmest
Warmest since:
2000
Ties: 1992, 2005
Oct 1983–Sep 1987
48-Month		49.2°F
(9.6°C)		48.4°F
(9.1°C)		0.8°F
(0.5°C)		88th Coolest
Coolest since:
1905, 1918
37th Warmest
Warmest since:
2001, 2002, 2019
Ties: 1923, 1924, 1986
Oct 1982–Sep 1987
60-Month		49.6°F
(9.8°C)		48.4°F
(9.1°C)		1.2°F
(0.7°C)		104th Coolest
Coolest since:
1905, 1906
20th Warmest
Warmest since:
2002
Ties: 2000, 2010, 2014

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