Climate at a Glance

Statewide 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

Average Temperature Rankings, September 1974

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
September 1974
1-Month
61.0°F
(16.1°C)
66.2°F
(19.0°C)
-5.2°F
(-2.9°C)
4th Coolest Coolest since: 1949 1918
124th Warmest Warmest since: 1973 1925, 1933
Aug–Sep 1974
2-Month
66.3°F
(19.1°C)
69.8°F
(21.0°C)
-3.5°F
(-1.9°C)
3rd Coolest Coolest since: 1967 1967
125th Warmest Warmest since: 1973 1936
Jul–Sep 1974
3-Month
69.8°F
(21.0°C)
71.7°F
(22.1°C)
-1.9°F
(-1.1°C)
12th Coolest Coolest since: 1967 1967
116th Warmest Warmest since: 1973 1936
Jun–Sep 1974
4-Month
69.2°F
(20.7°C)
71.6°F
(22.0°C)
-2.4°F
(-1.3°C)
7th Coolest Coolest since: 1967 1915, 1924
121st Warmest Warmest since: 1973 1936
May–Sep 1974
5-Month
67.6°F
(19.8°C)
69.8°F
(21.0°C)
-2.2°F
(-1.2°C)
8th Coolest Coolest since: 1967 1924
120th Warmest Warmest since: 1973 1936
Apr–Sep 1974
6-Month
65.3°F
(18.5°C)
66.7°F
(19.3°C)
-1.4°F
(-0.8°C)
17th Coolest Coolest since: 1967 1907
111th Warmest Warmest since: 1973 2010
Ties: 1902, 1910, 1935, 1996
Mar–Sep 1974
7-Month
62.2°F
(16.8°C)
62.9°F
(17.2°C)
-0.7°F
(-0.4°C)
36th Coolest Coolest since: 1969 1924
92nd Warmest Warmest since: 1973 2012
Ties: 1906, 1943
Feb–Sep 1974
8-Month
58.3°F
(14.6°C)
58.6°F
(14.8°C)
-0.3°F
(-0.2°C)
52nd Coolest Coolest since: 1972 1904
76th Warmest Warmest since: 1973 2012
Ties: 1962, 1963, 1968
Jan–Sep 1974
9-Month
54.7°F
(12.6°C)
54.9°F
(12.7°C)
-0.2°F
(-0.1°C)
55th Coolest Coolest since: 1972 1904, 1912
73rd Warmest Warmest since: 1973 2012
Ties: 1910, 1945, 1948, 1980
Dec 1973–Sep 1974
10-Month
52.0°F
(11.1°C)
52.4°F
(11.3°C)
-0.4°F
(-0.2°C)
46th Coolest Coolest since: 1971 1904
81st Warmest Warmest since: 1973 2012
Ties: 1947, 1971, 2003
Nov 1973–Sep 1974
11-Month
51.3°F
(10.7°C)
51.4°F
(10.8°C)
-0.1°F
(-0.1°C)
60th Coolest Coolest since: 1971 1904
67th Warmest Warmest since: 1973 2012
Ties: 1906
Oct 1973–Sep 1974
12-Month
51.9°F
(11.1°C)
51.6°F
(10.9°C)
0.3°F
(0.2°C)
67th Coolest Coolest since: 1973 1904
60th Warmest Warmest since: 1972 2012
Ties: 1948
Apr 1973–Sep 1974
18-Month
56.8°F
(13.8°C)
56.7°F
(13.7°C)
0.1°F
(0.1°C)
67th Coolest Coolest since: 1973 1904, 1918
60th Warmest Warmest since: 1972 2012
Ties: 1911
Oct 1972–Sep 1974
24-Month
51.9°F
(11.1°C)
51.7°F
(10.9°C)
0.2°F
(0.2°C)
79th Coolest Coolest since: 1972 1979
47th Warmest Warmest since: 1973 2017
Ties: 1940, 1947, 1957, 1984, 1995
Oct 1971–Sep 1974
36-Month
52.0°F
(11.1°C)
51.6°F
(10.9°C)
0.4°F
(0.2°C)
80th Coolest Coolest since: 1973 1979
45th Warmest Warmest since: 1957 2018
Ties: 1931, 1949, 1976, 1990, 2010
Oct 1970–Sep 1974
48-Month
51.8°F
(11.0°C)
51.6°F
(10.9°C)
0.2°F
(0.1°C)
66th Coolest Coolest since: 1973 1905
58th Warmest Warmest since: 1958 2019
Ties: 1916, 1925, 1931, 1945, 1950, 1958
Oct 1969–Sep 1974
60-Month
51.5°F
(10.8°C)
51.5°F
(10.8°C)
0.0°F
(0.0°C)
51st Coolest Coolest since: 1973 1906
72nd Warmest Warmest since: 1959 2020
Ties: 1911, 1914, 1952

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Average Temperature, published September 2022, retrieved on October 7, 2022 from https://www.ncdc.noaa.gov/cag/