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 May 2021. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, September 1964

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 1964
1-Month
66.3°F
(19.1°C)
66.2°F
(19.0°C)
0.1°F
(0.1°C)
66th Coolest Coolest since: 1963 1918
61st Warmest Warmest since: 1961 1925, 1933
Ties: 1997, 2000
Aug–Sep 1964
2-Month
69.3°F
(20.7°C)
69.8°F
(21.0°C)
-0.5°F
(-0.3°C)
51st Coolest Coolest since: 1963 1967
76th Warmest Warmest since: 1961 1936
Ties: 1932
Jul–Sep 1964
3-Month
71.4°F
(21.9°C)
71.7°F
(22.1°C)
-0.3°F
(-0.2°C)
51st Coolest Coolest since: 1963 1967
76th Warmest Warmest since: 1961 1936
Ties: 1972, 2000, 2003
Jun–Sep 1964
4-Month
71.8°F
(22.1°C)
71.6°F
(22.0°C)
0.2°F
(0.1°C)
68th Coolest Coolest since: 1963 1915, 1924
59th Warmest Warmest since: 1960 1936
Ties: 1899, 1908, 1916, 1923, 1960
May–Sep 1964
5-Month
70.8°F
(21.6°C)
69.7°F
(20.9°C)
1.1°F
(0.7°C)
92nd Coolest Coolest since: 1963 1924
35th Warmest Warmest since: 1959 1936
Ties: 1952
Apr–Sep 1964
6-Month
68.0°F
(20.0°C)
66.7°F
(19.3°C)
1.3°F
(0.7°C)
97th Coolest Coolest since: 1963 1907
30th Warmest Warmest since: 1959 2010
Ties: 1900
Mar–Sep 1964
7-Month
63.7°F
(17.6°C)
62.8°F
(17.1°C)
0.9°F
(0.5°C)
90th Coolest Coolest since: 1963 1924
37th Warmest Warmest since: 1959 2012
Ties: 1919, 2015
Feb–Sep 1964
8-Month
59.4°F
(15.2°C)
58.6°F
(14.8°C)
0.8°F
(0.4°C)
84th Coolest Coolest since: 1963 1904
43rd Warmest Warmest since: 1959 2012
Ties: 1944, 1957, 2001
Jan–Sep 1964
9-Month
56.2°F
(13.4°C)
55.0°F
(12.8°C)
1.2°F
(0.6°C)
92nd Coolest Coolest since: 1963 1904, 1912
35th Warmest Warmest since: 1955 2012
Ties: 1941, 1973, 2018
Dec 1963–Sep 1964
10-Month
52.4°F
(11.3°C)
52.5°F
(11.4°C)
-0.1°F
(-0.1°C)
58th Coolest Coolest since: 1963 1904
68th Warmest Warmest since: 1959 2012
Ties: 1901, 1906, 1935, 1956, 1959, 1972
Nov 1963–Sep 1964
11-Month
51.6°F
(10.9°C)
51.3°F
(10.7°C)
0.3°F
(0.2°C)
70th Coolest Coolest since: 1963 1904
56th Warmest Warmest since: 1959 2012
Ties: 1898, 1959
Oct 1963–Sep 1964
12-Month
52.6°F
(11.4°C)
51.6°F
(10.9°C)
1.0°F
(0.5°C)
90th Coolest Coolest since: 1963 1904
36th Warmest Warmest since: 1955 2012
Ties: 1988
Apr 1963–Sep 1964
18-Month
57.3°F
(14.1°C)
56.6°F
(13.7°C)
0.7°F
(0.4°C)
86th Coolest Coolest since: 1963 1904, 1918
40th Warmest Warmest since: 1957 2012
Ties: 1901, 1949, 1957, 2010
Oct 1962–Sep 1964
24-Month
51.6°F
(10.9°C)
51.6°F
(10.9°C)
0.0°F
(0.0°C)
51st Coolest Coolest since: 1963 1979
74th Warmest Warmest since: 1957 2017
Ties: 1945, 1946, 1975, 1977, 1983, 1990, 1996
Oct 1961–Sep 1964
36-Month
51.3°F
(10.7°C)
51.6°F
(10.9°C)
-0.3°F
(-0.2°C)
39th Coolest Coolest since: 1963 1979
85th Warmest Warmest since: 1959 2018
Ties: 1908, 1909, 1914, 1972, 1996, 1997
Oct 1960–Sep 1964
48-Month
51.3°F
(10.7°C)
51.6°F
(10.9°C)
-0.3°F
(-0.2°C)
34th Coolest Coolest since: 1963 1905
89th Warmest Warmest since: 1960 2019
Ties: 1900, 1903, 1909, 1928, 1930, 1951, 1960, 1965, 1984
Oct 1959–Sep 1964
60-Month
51.1°F
(10.6°C)
51.6°F
(10.9°C)
-0.5°F
(-0.3°C)
23rd Coolest Coolest since: 1963 1906
99th Warmest Warmest since: 1961 2020
Ties: 1909, 1912, 1978, 1983, 1997

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published June 2021, retrieved on June 12, 2021 from https://www.ncdc.noaa.gov/cag/