Divisional Rankings

Divisional Data Info
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Illinois, Climate Division 8. Southwest

Average Temperature Rankings, August 1990

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
August 1990
1-Month		74.2°F
(23.4°C)		76.0°F
(24.4°C)		-1.8°F
(-1.0°C)		24th Coolest
Coolest since:
1915
105th Warmest
Warmest since:
1936
Jul–Aug 1990
2-Month		75.7°F
(24.3°C)		77.0°F
(25.0°C)		-1.3°F
(-0.7°C)		26th Coolest
Coolest since:
1967
103rd Warmest
Warmest since:
1936
Ties: 1945, 1996
Jun–Aug 1990
3-Month		75.3°F
(24.1°C)		75.9°F
(24.4°C)		-0.6°F
(-0.3°C)		40th Coolest
Coolest since:
1915, 1927
89th Warmest
Warmest since:
1936
Ties: 1902, 1960, 1963, 1971, 1979
May–Aug 1990
4-Month		72.0°F
(22.2°C)		73.2°F
(22.9°C)		-1.2°F
(-0.7°C)		21st Coolest
Coolest since:
1967
108th Warmest
Warmest since:
1936
Ties: 1903, 1960, 1974, 1981, 1994
Apr–Aug 1990
5-Month		68.3°F
(20.2°C)		69.6°F
(20.9°C)		-1.3°F
(-0.7°C)		17th Coolest
Coolest since:
1907
112th Warmest
Warmest since:
2010
Ties: 1915
Mar–Aug 1990
6-Month		65.1°F
(18.4°C)		65.5°F
(18.6°C)		-0.4°F
(-0.2°C)		45th Coolest
Coolest since:
1904
84th Warmest
Warmest since:
2012
Ties: 1994
Feb–Aug 1990
7-Month		61.6°F
(16.4°C)		61.1°F
(16.2°C)		0.5°F
(0.2°C)		79th Coolest
Coolest since:
1904
50th Warmest
Warmest since:
2012
Ties: 1908, 1974, 2009
Jan–Aug 1990
8-Month		59.1°F
(15.1°C)		57.3°F
(14.1°C)		1.8°F
(1.0°C)		106th Coolest
Coolest since:
1912
23rd Warmest
Warmest since:
2012
Ties: 1911, 2010, 2011
Dec 1989–Aug 1990
9-Month		55.1°F
(12.8°C)		54.8°F
(12.7°C)		0.3°F
(0.1°C)		69th Coolest
Coolest since:
1904
59th Warmest
Warmest since:
2012
Ties: 1901, 1935
Nov 1989–Aug 1990
10-Month		54.1°F
(12.3°C)		53.8°F
(12.1°C)		0.3°F
(0.2°C)		68th Coolest
Coolest since:
1904
60th Warmest
Warmest since:
2012
Ties: 1901
Oct 1989–Aug 1990
11-Month		54.5°F
(12.5°C)		54.1°F
(12.3°C)		0.4°F
(0.2°C)		72nd Coolest
Coolest since:
1904
56th Warmest
Warmest since:
2012
Ties: 1916, 1931, 1988
Sep 1989–Aug 1990
12-Month		55.5°F
(13.1°C)		55.4°F
(13.0°C)		0.1°F
(0.1°C)		61st Coolest
Coolest since:
1904
67th Warmest
Warmest since:
2012
Ties: 1908, 1937, 1948
Mar 1989–Aug 1990
18-Month		58.5°F
(14.7°C)		58.7°F
(14.8°C)		-0.2°F
(-0.1°C)		50th Coolest
Coolest since:
1904
78th Warmest
Warmest since:
2012
Ties: 1913, 1925, 1936, 1945, 1966
Sep 1988–Aug 1990
24-Month		55.2°F
(12.9°C)		55.4°F
(13.0°C)		-0.2°F
(-0.1°C)		47th Coolest
Coolest since:
1979
80th Warmest
Warmest since:
2017
Ties: 1925, 1964, 1966
Sep 1987–Aug 1990
36-Month		55.4°F
(13.0°C)		55.4°F
(13.0°C)		0.0°F
(0.0°C)		55th Coolest
Coolest since:
1979
71st Warmest
Warmest since:
2018
Ties: 1910, 1925, 1931, 1945, 1946
Sep 1986–Aug 1990
48-Month		55.8°F
(13.2°C)		55.3°F
(12.9°C)		0.5°F
(0.3°C)		81st Coolest
Coolest since:
1980
44th Warmest
Warmest since:
2019
Ties: 1938, 1943, 1974, 1975, 1999, 2004
Sep 1985–Aug 1990
60-Month		55.9°F
(13.3°C)		55.3°F
(12.9°C)		0.6°F
(0.4°C)		82nd Coolest
Coolest since:
1906
42nd Warmest
Warmest since:
2020
Ties: 1941, 1945, 1954, 1989, 1995, 1999

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