Divisional Rankings

Divisional Data Info
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Illinois, Climate Division 7. East Southeast

Average Temperature Rankings, October 1999

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
October 1999
1-Month 		56.0°F
(13.3°C)		 55.7°F
(13.2°C)		 0.3°F
(0.1°C)		 70th Coolest
Coolest since:
 1925
59th Warmest
Warmest since:
 1963
Ties: 1935, 2011
Sep–Oct 1999
2-Month 		61.5°F
(16.4°C)		 61.6°F
(16.4°C)		 -0.1°F
(0.0°C)		 67th Coolest
Coolest since:
 1917
62nd Warmest
Warmest since:
 1971, 2016
Ties: 1944, 1962
Aug–Oct 1999
3-Month 		65.3°F
(18.5°C)		 65.8°F
(18.8°C)		 -0.5°F
(-0.3°C)		 50th Coolest
Coolest since:
 1976
79th Warmest
Warmest since:
 1947, 2007
Ties: 1924, 1928, 1989
Jul–Oct 1999
4-Month 		68.8°F
(20.4°C)		 68.4°F
(20.2°C)		 0.4°F
(0.2°C)		 75th Coolest
Coolest since:
 1967
54th Warmest
Warmest since:
 1936
Ties: 1944, 2015
Jun–Oct 1999
5-Month 		69.6°F
(20.9°C)		 69.2°F
(20.7°C)		 0.4°F
(0.2°C)		 78th Coolest
Coolest since:
 1917
51st Warmest
Warmest since:
 1936
Ties: 1932, 1949, 2015
May–Oct 1999
6-Month 		68.8°F
(20.4°C)		 68.2°F
(20.1°C)		 0.6°F
(0.3°C)		 80th Coolest
Coolest since:
 1917
49th Warmest
Warmest since:
 1936
Ties: 1926, 1970, 1971, 1995
Apr–Oct 1999
7-Month 		66.9°F
(19.4°C)		 66.0°F
(18.9°C)		 0.9°F
(0.5°C)		 92nd Coolest
Coolest since:
 1907
37th Warmest
Warmest since:
 2010
Ties: 1987, 2001
Mar–Oct 1999
8-Month 		63.5°F
(17.5°C)		 63.0°F
(17.2°C)		 0.5°F
(0.3°C)		 79th Coolest
Coolest since:
 1917
50th Warmest
Warmest since:
 2012
Ties: 1956
Feb–Oct 1999
9-Month 		60.7°F
(15.9°C)		 59.5°F
(15.3°C)		 1.2°F
(0.6°C)		 100th Coolest
Coolest since:
 1917
29th Warmest
Warmest since:
 2012
Ties: 1919, 1925, 1959
Jan–Oct 1999
10-Month 		57.5°F
(14.2°C)		 56.3°F
(13.5°C)		 1.2°F
(0.7°C)		 96th Coolest
Coolest since:
 1979
33rd Warmest
Warmest since:
 2012
Ties: 2018
Dec 1998–Oct 1999
11-Month 		55.6°F
(13.1°C)		 54.0°F
(12.2°C)		 1.6°F
(0.9°C)		 108th Coolest
Coolest since:
 1904
20th Warmest
Warmest since:
 2012
Ties: 1922, 1931, 2010
Nov 1998–Oct 1999
12-Month 		54.8°F
(12.7°C)		 53.1°F
(11.7°C)		 1.7°F
(1.0°C)		 111th Coolest
Coolest since:
 1904
17th Warmest
Warmest since:
 2012
Ties: 1995
May 1998–Oct 1999
18-Month 		60.0°F
(15.6°C)		 58.1°F
(14.5°C)		 1.9°F
(1.1°C)		 121st Coolest
Coolest since:
 1904
7th Warmest
Warmest since:
 2012
Nov 1997–Oct 1999
24-Month 		55.2°F
(12.9°C)		 53.1°F
(11.7°C)		 2.1°F
(1.2°C)		 121st Coolest
Coolest since:
 1979
6th Warmest
Warmest since:
 2017
Ties: 2018
Nov 1996–Oct 1999
36-Month 		54.2°F
(12.3°C)		 53.0°F
(11.7°C)		 1.2°F
(0.6°C)		 106th Coolest
Coolest since:
 1979
20th Warmest
Warmest since:
 2018
Ties: 1921, 1935, 1991, 2004
Nov 1995–Oct 1999
48-Month 		53.5°F
(11.9°C)		 53.0°F
(11.7°C)		 0.5°F
(0.2°C)		 80th Coolest
Coolest since:
 1905, 1980
45th Warmest
Warmest since:
 2019
Ties: 1950, 1986, 1998, 2011, 2015
Nov 1994–Oct 1999
60-Month 		53.8°F
(12.1°C)		 53.0°F
(11.7°C)		 0.8°F
(0.4°C)		 90th Coolest
Coolest since:
 1982
34th Warmest
Warmest since:
 2020
Ties: 1995

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