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 1978

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
August 1978
1-Month
75.8°F
(24.3°C)
76.0°F
(24.4°C)
-0.2°F
(-0.1°C)
57th Coolest Coolest since: 1977 1915
72nd Warmest Warmest since: 1975 1936
Ties: 1952, 1964
Jul–Aug 1978
2-Month
77.0°F
(25.0°C)
76.9°F
(24.9°C)
0.1°F
(0.1°C)
69th Coolest Coolest since: 1976 1967
60th Warmest Warmest since: 1977 1936
Ties: 1966
Jun–Aug 1978
3-Month
76.0°F
(24.4°C)
75.9°F
(24.4°C)
0.1°F
(0.0°C)
64th Coolest Coolest since: 1976 1915, 1927
65th Warmest Warmest since: 1977 1936
Ties: 1926
May–Aug 1978
4-Month
72.9°F
(22.7°C)
73.2°F
(22.9°C)
-0.3°F
(-0.2°C)
52nd Coolest Coolest since: 1976 1967
77th Warmest Warmest since: 1977 1936
Ties: 1969
Apr–Aug 1978
5-Month
69.8°F
(21.0°C)
69.6°F
(20.9°C)
0.2°F
(0.1°C)
67th Coolest Coolest since: 1976 1907
62nd Warmest Warmest since: 1977 2010
Ties: 1902, 1956, 1993, 2014
Mar–Aug 1978
6-Month
64.6°F
(18.1°C)
65.4°F
(18.6°C)
-0.8°F
(-0.5°C)
27th Coolest Coolest since: 1971 1904
102nd Warmest Warmest since: 1977 2012
Ties: 1897, 1923, 1989
Feb–Aug 1978
7-Month
58.5°F
(14.7°C)
61.1°F
(16.2°C)
-2.6°F
(-1.5°C)
5th Coolest Coolest since: 1960 1904
124th Warmest Warmest since: 1977 2012
Jan–Aug 1978
8-Month
53.8°F
(12.1°C)
57.3°F
(14.1°C)
-3.5°F
(-2.0°C)
3rd Coolest Coolest since: 1912 1912
126th Warmest Warmest since: 1977 2012
Dec 1977–Aug 1978
9-Month
51.4°F
(10.8°C)
54.8°F
(12.7°C)
-3.4°F
(-1.9°C)
2nd Coolest Coolest since: 1904 1904
126th Warmest Warmest since: 1977 2012
Nov 1977–Aug 1978
10-Month
50.8°F
(10.4°C)
53.8°F
(12.1°C)
-3.0°F
(-1.7°C)
3rd Coolest Coolest since: 1912 1904
125th Warmest Warmest since: 1977 2012
Oct 1977–Aug 1978
11-Month
51.2°F
(10.7°C)
54.1°F
(12.3°C)
-2.9°F
(-1.6°C)
3rd Coolest Coolest since: 1912 1904
125th Warmest Warmest since: 1977 2012
Sep 1977–Aug 1978
12-Month
52.8°F
(11.6°C)
55.4°F
(13.0°C)
-2.6°F
(-1.4°C)
2nd Coolest Coolest since: 1904 1904
126th Warmest Warmest since: 1977 2012
Mar 1977–Aug 1978
18-Month
58.0°F
(14.4°C)
58.7°F
(14.8°C)
-0.7°F
(-0.4°C)
25th Coolest Coolest since: 1977 1904
103rd Warmest Warmest since: 1976 2012
Ties: 1907, 1910, 1962, 1969
Sep 1976–Aug 1978
24-Month
53.3°F
(11.8°C)
55.4°F
(13.0°C)
-2.1°F
(-1.2°C)
3rd Coolest Coolest since: 1905 1979
124th Warmest Warmest since: 1977 2017
Sep 1975–Aug 1978
36-Month
54.1°F
(12.3°C)
55.3°F
(12.9°C)
-1.2°F
(-0.6°C)
6th Coolest Coolest since: 1970 1979
120th Warmest Warmest since: 1977 2018
Ties: 1970
Sep 1974–Aug 1978
48-Month
54.3°F
(12.4°C)
55.4°F
(13.0°C)
-1.1°F
(-0.6°C)
9th Coolest Coolest since: 1971 1980
116th Warmest Warmest since: 1977 2019
Ties: 1918
Sep 1973–Aug 1978
60-Month
54.7°F
(12.6°C)
55.3°F
(12.9°C)
-0.6°F
(-0.3°C)
13th Coolest Coolest since: 1972 1906
111th Warmest Warmest since: 1977 2020
Ties: 1919, 1920, 1963, 1969, 1972

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, Average Temperature, published September 2022, retrieved on October 3, 2022 from https://www.ncdc.noaa.gov/cag/