Climate at a Glance

Divisional Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of August 2022. For more information, please see Climatological Rankings.


Illinois, Climate Division 8. Southwest

Average Temperature Rankings, August 1971

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
August 1971
1-Month
73.9°F
(23.3°C)
76.0°F
(24.4°C)
-2.1°F
(-1.1°C)
20th Coolest Coolest since: 1967 1915
109th Warmest Warmest since: 1970 1936
Ties: 1929
Jul–Aug 1971
2-Month
74.4°F
(23.6°C)
77.0°F
(25.0°C)
-2.6°F
(-1.4°C)
8th Coolest Coolest since: 1967 1967
121st Warmest Warmest since: 1970 1936
Jun–Aug 1971
3-Month
75.3°F
(24.1°C)
76.0°F
(24.4°C)
-0.7°F
(-0.3°C)
40th Coolest Coolest since: 1970 1915, 1927
89th Warmest Warmest since: 1969 1936
Ties: 1902, 1960, 1963, 1979, 1990
May–Aug 1971
4-Month
71.8°F
(22.1°C)
73.2°F
(22.9°C)
-1.4°F
(-0.8°C)
19th Coolest Coolest since: 1967 1967
110th Warmest Warmest since: 1970 1936
Ties: 1928
Apr–Aug 1971
5-Month
68.5°F
(20.3°C)
69.7°F
(20.9°C)
-1.2°F
(-0.6°C)
21st Coolest Coolest since: 1967 1907
108th Warmest Warmest since: 1970 2010
Ties: 1897, 1966, 1979
Mar–Aug 1971
6-Month
64.0°F
(17.8°C)
65.4°F
(18.6°C)
-1.4°F
(-0.8°C)
17th Coolest Coolest since: 1961 1904
112th Warmest Warmest since: 1970 2012
Ties: 1926, 1997, 2013
Feb–Aug 1971
7-Month
59.8°F
(15.4°C)
61.1°F
(16.2°C)
-1.3°F
(-0.8°C)
20th Coolest Coolest since: 1960 1904
109th Warmest Warmest since: 1970 2012
Ties: 1902, 1928, 1951, 1982
Jan–Aug 1971
8-Month
55.8°F
(13.2°C)
57.3°F
(14.1°C)
-1.5°F
(-0.9°C)
17th Coolest Coolest since: 1960 1912
112th Warmest Warmest since: 1970 2012
Dec 1970–Aug 1971
9-Month
53.9°F
(12.2°C)
54.8°F
(12.7°C)
-0.9°F
(-0.5°C)
28th Coolest Coolest since: 1970 1904
100th Warmest Warmest since: 1968 2012
Ties: 1945, 1968, 1996
Nov 1970–Aug 1971
10-Month
52.9°F
(11.6°C)
53.8°F
(12.1°C)
-0.9°F
(-0.5°C)
30th Coolest Coolest since: 1970 1904
98th Warmest Warmest since: 1967 2012
Oct 1970–Aug 1971
11-Month
53.2°F
(11.8°C)
54.1°F
(12.3°C)
-0.9°F
(-0.5°C)
27th Coolest Coolest since: 1970 1904
101st Warmest Warmest since: 1969 2012
Ties: 1906, 1927, 1963, 1969
Sep 1970–Aug 1971
12-Month
54.8°F
(12.7°C)
55.4°F
(13.0°C)
-0.6°F
(-0.3°C)
35th Coolest Coolest since: 1970 1904
93rd Warmest Warmest since: 1967 2012
Ties: 1945, 1967, 1975, 1993, 2015
Mar 1970–Aug 1971
18-Month
58.2°F
(14.6°C)
58.7°F
(14.8°C)
-0.5°F
(-0.2°C)
35th Coolest Coolest since: 1970 1904
93rd Warmest Warmest since: 1966 2012
Ties: 1928, 1980, 2015
Sep 1969–Aug 1971
24-Month
54.3°F
(12.4°C)
55.4°F
(13.0°C)
-1.1°F
(-0.6°C)
11th Coolest Coolest since: 1970 1979
116th Warmest Warmest since: 1968 2017
Ties: 1906
Sep 1968–Aug 1971
36-Month
54.3°F
(12.4°C)
55.3°F
(12.9°C)
-1.0°F
(-0.5°C)
8th Coolest Coolest since: 1970 1979
118th Warmest Warmest since: 1969 2018
Sep 1967–Aug 1971
48-Month
54.2°F
(12.3°C)
55.3°F
(12.9°C)
-1.1°F
(-0.6°C)
6th Coolest Coolest since: 1970 1980
119th Warmest Warmest since: 1970 2019
Ties: 1970, 1981
Sep 1966–Aug 1971
60-Month
54.4°F
(12.4°C)
55.4°F
(13.0°C)
-1.0°F
(-0.6°C)
9th Coolest Coolest since: 1908 1906
115th Warmest Warmest since: 1970 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, Average Temperature, published September 2022, retrieved on October 6, 2022 from https://www.ncdc.noaa.gov/cag/