Divisional Rankings

Divisional Data Info
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Illinois, Climate Division 3. West

Average Temperature Rankings, May 1991

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
May 1991
1-Month		67.8°F
(19.9°C)		62.3°F
(16.8°C)		5.5°F
(3.1°C)		121st Coolest
Coolest since:
1924
8th Warmest
Warmest since:
2018
Apr–May 1991
2-Month		61.8°F
(16.6°C)		56.8°F
(13.8°C)		5.0°F
(2.8°C)		126th Coolest
Coolest since:
1907
3rd Warmest
Warmest since:
1896
Mar–May 1991
3-Month		55.9°F
(13.3°C)		50.9°F
(10.5°C)		5.0°F
(2.8°C)		126th Coolest
Coolest since:
1960
3rd Warmest
Warmest since:
2012
Feb–May 1991
4-Month		50.3°F
(10.2°C)		45.2°F
(7.3°C)		5.1°F
(2.9°C)		126th Coolest
Coolest since:
1978
3rd Warmest
Warmest since:
2012
Jan–May 1991
5-Month		44.4°F
(6.9°C)		40.9°F
(4.9°C)		3.5°F
(2.0°C)		119th Coolest
Coolest since:
1978
10th Warmest
Warmest since:
2012
Ties: 1990
Dec 1990–May 1991
6-Month		41.7°F
(5.4°C)		38.8°F
(3.8°C)		2.9°F
(1.6°C)		117th Coolest
Coolest since:
1978
11th Warmest
Warmest since:
2012
Nov 1990–May 1991
7-Month		42.3°F
(5.7°C)		39.0°F
(3.9°C)		3.3°F
(1.8°C)		120th Coolest
Coolest since:
1978
8th Warmest
Warmest since:
2012
Ties: 1987, 1998
Oct 1990–May 1991
8-Month		43.6°F
(6.4°C)		41.0°F
(5.0°C)		2.6°F
(1.4°C)		115th Coolest
Coolest since:
1978
13th Warmest
Warmest since:
2012
Sep 1990–May 1991
9-Month		46.3°F
(7.9°C)		43.8°F
(6.6°C)		2.5°F
(1.3°C)		117th Coolest
Coolest since:
1978
11th Warmest
Warmest since:
2012
Ties: 2002
Aug 1990–May 1991
10-Month		49.0°F
(9.4°C)		46.8°F
(8.2°C)		2.2°F
(1.2°C)		116th Coolest
Coolest since:
1978
12th Warmest
Warmest since:
2012
Ties: 1954
Jul 1990–May 1991
11-Month		51.3°F
(10.7°C)		49.4°F
(9.7°C)		1.9°F
(1.0°C)		114th Coolest
Coolest since:
1904
14th Warmest
Warmest since:
2012
Ties: 1914, 1998
Jun 1990–May 1991
12-Month		53.0°F
(11.7°C)		51.3°F
(10.7°C)		1.7°F
(1.0°C)		111th Coolest
Coolest since:
1904
17th Warmest
Warmest since:
2012
Ties: 1922, 1935
Dec 1989–May 1991
18-Month		48.6°F
(9.2°C)		47.1°F
(8.4°C)		1.5°F
(0.8°C)		107th Coolest
Coolest since:
1979
20th Warmest
Warmest since:
2017
Jun 1989–May 1991
24-Month		52.3°F
(11.3°C)		51.2°F
(10.7°C)		1.1°F
(0.6°C)		106th Coolest
Coolest since:
1905
21st Warmest
Warmest since:
2017
Ties: 1923, 1934, 1956
Jun 1988–May 1991
36-Month		52.1°F
(11.2°C)		51.2°F
(10.7°C)		0.9°F
(0.5°C)		98th Coolest
Coolest since:
1979
28th Warmest
Warmest since:
2018
Ties: 1915, 1940, 1941, 1943
Jun 1987–May 1991
48-Month		52.1°F
(11.2°C)		51.2°F
(10.7°C)		0.9°F
(0.5°C)		96th Coolest
Coolest since:
1980
29th Warmest
Warmest since:
1935
Ties: 2012
Jun 1986–May 1991
60-Month		52.3°F
(11.3°C)		51.2°F
(10.7°C)		1.1°F
(0.6°C)		110th Coolest
Coolest since:
1906, 1907, 1979
14th Warmest
Warmest since:
1935
Ties: 1941, 1992

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