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 December 2020. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, September 1975

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 1975
1-Month
61.8°F
(16.6°C)
66.2°F
(19.0°C)
-4.4°F
(-2.4°C)
7th Coolest Coolest since: 1974 1918
120th Warmest Warmest since: 1973 1925, 1933
Aug–Sep 1975
2-Month
68.2°F
(20.1°C)
69.8°F
(21.0°C)
-1.6°F
(-0.9°C)
20th Coolest Coolest since: 1974 1967
107th Warmest Warmest since: 1973 1936
Ties: 1896, 1903, 1929, 1962, 1981, 1993
Jul–Sep 1975
3-Month
70.1°F
(21.2°C)
71.7°F
(22.1°C)
-1.6°F
(-0.9°C)
18th Coolest Coolest since: 1974 1967
109th Warmest Warmest since: 1973 1936
Ties: 1996
Jun–Sep 1975
4-Month
70.7°F
(21.5°C)
71.7°F
(22.1°C)
-1.0°F
(-0.6°C)
33rd Coolest Coolest since: 1974 1915, 1924
94th Warmest Warmest since: 1973 1936
Ties: 1910
May–Sep 1975
5-Month
69.6°F
(20.9°C)
69.8°F
(21.0°C)
-0.2°F
(-0.1°C)
53rd Coolest Coolest since: 1974 1924
74th Warmest Warmest since: 1973 1936
Ties: 1947, 1948
Apr–Sep 1975
6-Month
66.0°F
(18.9°C)
66.7°F
(19.3°C)
-0.7°F
(-0.4°C)
33rd Coolest Coolest since: 1974 1907
94th Warmest Warmest since: 1973 2010
Ties: 1946, 1984, 1990, 1993
Mar–Sep 1975
7-Month
61.7°F
(16.5°C)
62.9°F
(17.2°C)
-1.2°F
(-0.7°C)
19th Coolest Coolest since: 1967 1924
108th Warmest Warmest since: 1974 2012
Ties: 1920, 1947, 1961, 1982
Feb–Sep 1975
8-Month
57.5°F
(14.2°C)
58.6°F
(14.8°C)
-1.1°F
(-0.6°C)
22nd Coolest Coolest since: 1967 1904
105th Warmest Warmest since: 1974 2012
Ties: 1920, 1993
Jan–Sep 1975
9-Month
54.4°F
(12.4°C)
55.0°F
(12.8°C)
-0.6°F
(-0.4°C)
45th Coolest Coolest since: 1972 1904, 1912
82nd Warmest Warmest since: 1974 2012
Ties: 1961, 1968
Dec 1974–Sep 1975
10-Month
52.1°F
(11.2°C)
52.4°F
(11.3°C)
-0.3°F
(-0.1°C)
50th Coolest Coolest since: 1974 1904
76th Warmest Warmest since: 1973 2012
Ties: 1968, 1989
Nov 1974–Sep 1975
11-Month
51.1°F
(10.6°C)
51.3°F
(10.7°C)
-0.2°F
(-0.1°C)
50th Coolest Coolest since: 1971 1904
76th Warmest Warmest since: 1974 2012
Ties: 1923, 1937, 1943
Oct 1974–Sep 1975
12-Month
51.3°F
(10.7°C)
51.6°F
(10.9°C)
-0.3°F
(-0.2°C)
44th Coolest Coolest since: 1971 1904
82nd Warmest Warmest since: 1974 2012
Ties: 1897, 1928, 1936, 1937, 1956, 2001
Apr 1974–Sep 1975
18-Month
56.0°F
(13.3°C)
56.6°F
(13.7°C)
-0.6°F
(-0.4°C)
31st Coolest Coolest since: 1970 1904, 1918
95th Warmest Warmest since: 1974 2012
Ties: 1926, 1936, 1963, 1969
Oct 1973–Sep 1975
24-Month
51.6°F
(10.9°C)
51.6°F
(10.9°C)
0.0°F
(0.0°C)
51st Coolest Coolest since: 1971 1979
74th Warmest Warmest since: 1974 2017
Ties: 1945, 1946, 1964, 1977, 1983, 1990, 1996
Oct 1972–Sep 1975
36-Month
51.7°F
(10.9°C)
51.6°F
(10.9°C)
0.1°F
(0.0°C)
67th Coolest Coolest since: 1972 1979
57th Warmest Warmest since: 1974 2018
Ties: 1898, 1911, 1946, 1966
Oct 1971–Sep 1975
48-Month
51.9°F
(11.1°C)
51.6°F
(10.9°C)
0.3°F
(0.2°C)
73rd Coolest Coolest since: 1974 1905
50th Warmest Warmest since: 1957 2019
Ties: 1921, 1937, 1938, 1943, 1994, 2016
Oct 1970–Sep 1975
60-Month
51.7°F
(10.9°C)
51.6°F
(10.9°C)
0.1°F
(0.0°C)
57th Coolest Coolest since: 1974 1906
65th Warmest Warmest since: 1959 2020
Ties: 1931, 1947, 1953, 1998

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2021, retrieved on January 25, 2021 from https://www.ncdc.noaa.gov/cag/