Statewide Rankings

Statewide Data Info
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Illinois

Average Temperature Rankings, August 1991

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  • Record Warmest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
August 1991
1-Month 		74.7°F
(23.7°C)		 73.4°F
(23.0°C)		 1.3°F
(0.7°C)		 97th Coolest
Coolest since:
 1915
32nd Warmest
Warmest since:
 1947
Ties: 1926, 1935, 1984, 2006, 2018
Jul–Aug 1991
2-Month 		75.5°F
(24.2°C)		 74.5°F
(23.6°C)		 1.0°F
(0.6°C)		 94th Coolest
Coolest since:
 1915
35th Warmest
Warmest since:
 1936
Ties: 1918, 1953
Jun–Aug 1991
3-Month 		75.4°F
(24.1°C)		 73.5°F
(23.1°C)		 1.9°F
(1.0°C)		 107th Coolest
Coolest since:
 1915
22nd Warmest
Warmest since:
 1936
Ties: 1987, 2016
May–Aug 1991
4-Month 		73.7°F
(23.2°C)		 70.7°F
(21.5°C)		 3.0°F
(1.7°C)		 124th Coolest
Coolest since:
 1915
5th Warmest
Warmest since:
 1934, 1936
Apr–Aug 1991
5-Month 		70.1°F
(21.2°C)		 66.8°F
(19.3°C)		 3.3°F
(1.9°C)		 126th Coolest
Coolest since:
 1907
3rd Warmest
Warmest since:
 1934
Ties: 2012
Mar–Aug 1991
6-Month 		65.8°F
(18.8°C)		 62.3°F
(16.8°C)		 3.5°F
(2.0°C)		 126th Coolest
Coolest since:
 1904, 1950, 1960
3rd Warmest
Warmest since:
 2012
Ties: 1921
Feb–Aug 1991
7-Month 		61.3°F
(16.3°C)		 57.6°F
(14.2°C)		 3.7°F
(2.1°C)		 126th Coolest
Coolest since:
 1904
3rd Warmest
Warmest since:
 2012
Jan–Aug 1991
8-Month 		56.5°F
(13.6°C)		 53.5°F
(11.9°C)		 3.0°F
(1.7°C)		 122nd Coolest
Coolest since:
 1904, 1912
7th Warmest
Warmest since:
 2012
Dec 1990–Aug 1991
9-Month 		53.6°F
(12.0°C)		 50.9°F
(10.5°C)		 2.7°F
(1.5°C)		 121st Coolest
Coolest since:
 1904
7th Warmest
Warmest since:
 2012
Nov 1990–Aug 1991
10-Month 		52.9°F
(11.6°C)		 49.8°F
(9.9°C)		 3.1°F
(1.7°C)		 121st Coolest
Coolest since:
 1904
7th Warmest
Warmest since:
 2012
Oct 1990–Aug 1991
11-Month 		52.9°F
(11.6°C)		 50.3°F
(10.2°C)		 2.6°F
(1.4°C)		 121st Coolest
Coolest since:
 1904
7th Warmest
Warmest since:
 2012
Sep 1990–Aug 1991
12-Month 		54.2°F
(12.3°C)		 51.7°F
(10.9°C)		 2.5°F
(1.4°C)		 122nd Coolest
Coolest since:
 1904
6th Warmest
Warmest since:
 2012
Ties: 1999, 2006
Mar 1990–Aug 1991
18-Month 		56.8°F
(13.8°C)		 55.2°F
(12.9°C)		 1.6°F
(0.9°C)		 110th Coolest
Coolest since:
 1904
18th Warmest
Warmest since:
 2012
Ties: 1939, 1988
Sep 1989–Aug 1991
24-Month 		53.0°F
(11.7°C)		 51.6°F
(10.9°C)		 1.4°F
(0.8°C)		 108th Coolest
Coolest since:
 1905
19th Warmest
Warmest since:
 2017
Ties: 2016, 2021
Sep 1988–Aug 1991
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: 1921, 1943, 1957, 1993, 2014
Sep 1987–Aug 1991
48-Month 		52.5°F
(11.4°C)		 51.6°F
(10.9°C)		 0.9°F
(0.5°C)		 98th Coolest
Coolest since:
 1905
27th Warmest
Warmest since:
 2019
Ties: 1924, 1942, 1989, 1990, 2014
Sep 1986–Aug 1991
60-Month 		52.8°F
(11.6°C)		 51.6°F
(10.9°C)		 1.2°F
(0.7°C)		 109th Coolest
Coolest since:
 1906
15th Warmest
Warmest since:
 2020
Ties: 1936, 2022

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