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


Illinois

Average Temperature Rankings, September 1959

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 1959
1-Month
67.9°F
(19.9°C)
66.2°F
(19.0°C)
1.7°F
(0.9°C)
89th Coolest Coolest since: 1958 1918
38th Warmest Warmest since: 1955 1925, 1933
Ties: 1938, 1948, 1990
Aug–Sep 1959
2-Month
72.4°F
(22.4°C)
69.8°F
(21.0°C)
2.6°F
(1.4°C)
112th Coolest Coolest since: 1958 1967
15th Warmest Warmest since: 1955 1936
Ties: 1933, 1955
Jul–Sep 1959
3-Month
73.1°F
(22.8°C)
71.7°F
(22.1°C)
1.4°F
(0.7°C)
98th Coolest Coolest since: 1958 1967
29th Warmest Warmest since: 1955 1936
Ties: 1919, 1934, 1939
Jun–Sep 1959
4-Month
73.1°F
(22.8°C)
71.7°F
(22.1°C)
1.4°F
(0.7°C)
99th Coolest Coolest since: 1958 1915, 1924
28th Warmest Warmest since: 1955 1936
Ties: 1911, 1952, 1955, 1991
May–Sep 1959
5-Month
71.8°F
(22.1°C)
69.8°F
(21.0°C)
2.0°F
(1.1°C)
113th Coolest Coolest since: 1958 1924
14th Warmest Warmest since: 1941 1936
Ties: 1941, 2016
Apr–Sep 1959
6-Month
68.4°F
(20.2°C)
66.7°F
(19.3°C)
1.7°F
(0.9°C)
107th Coolest Coolest since: 1958 1907
20th Warmest Warmest since: 1955 2010
Ties: 1914, 2018
Mar–Sep 1959
7-Month
64.4°F
(18.0°C)
62.9°F
(17.2°C)
1.5°F
(0.8°C)
108th Coolest Coolest since: 1958 1924
19th Warmest Warmest since: 1955 2012
Feb–Sep 1959
8-Month
59.9°F
(15.5°C)
58.6°F
(14.8°C)
1.3°F
(0.7°C)
98th Coolest Coolest since: 1958 1904
29th Warmest Warmest since: 1955 2012
Ties: 1936, 2006
Jan–Sep 1959
9-Month
55.6°F
(13.1°C)
55.0°F
(12.8°C)
0.6°F
(0.3°C)
83rd Coolest Coolest since: 1958 1904, 1912
44th Warmest Warmest since: 1955 2012
Ties: 1908, 1914, 2001
Dec 1958–Sep 1959
10-Month
52.4°F
(11.3°C)
52.4°F
(11.3°C)
0.0°F
(0.0°C)
58th Coolest Coolest since: 1958 1904
68th Warmest Warmest since: 1957 2012
Ties: 1901, 1906, 1935, 1956, 1964, 1972
Nov 1958–Sep 1959
11-Month
51.6°F
(10.9°C)
51.3°F
(10.7°C)
0.3°F
(0.2°C)
70th Coolest Coolest since: 1958 1904
56th Warmest Warmest since: 1957 2012
Ties: 1898, 1964
Oct 1958–Sep 1959
12-Month
52.0°F
(11.1°C)
51.7°F
(10.9°C)
0.3°F
(0.2°C)
75th Coolest Coolest since: 1958 1904
51st Warmest Warmest since: 1957 2012
Ties: 1901, 1944, 1946, 1985, 1992, 2013, 2019
Apr 1958–Sep 1959
18-Month
56.5°F
(13.6°C)
56.6°F
(13.7°C)
-0.1°F
(-0.1°C)
48th Coolest Coolest since: 1958 1904, 1918
78th Warmest Warmest since: 1957 2012
Ties: 1906, 1947, 1950, 2001
Oct 1957–Sep 1959
24-Month
51.1°F
(10.6°C)
51.6°F
(10.9°C)
-0.5°F
(-0.3°C)
33rd Coolest Coolest since: 1952 1979
92nd Warmest Warmest since: 1958 2017
Ties: 1928, 1929, 1960, 1967
Oct 1956–Sep 1959
36-Month
51.6°F
(10.9°C)
51.6°F
(10.9°C)
0.0°F
(0.0°C)
55th Coolest Coolest since: 1958 1979
69th Warmest Warmest since: 1957 2018
Ties: 1916, 1937, 1947, 1953, 1983, 1995, 1998
Oct 1955–Sep 1959
48-Month
51.5°F
(10.8°C)
51.6°F
(10.9°C)
-0.1°F
(-0.1°C)
48th Coolest Coolest since: 1953 1905
75th Warmest Warmest since: 1958 2019
Ties: 1953, 1967, 1973
Oct 1954–Sep 1959
60-Month
51.9°F
(11.1°C)
51.6°F
(10.9°C)
0.3°F
(0.2°C)
69th Coolest Coolest since: 1953 1906
53rd Warmest Warmest since: 1958 2020
Ties: 1944, 1946, 1950

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2020, retrieved on October 23, 2020 from https://www.ncdc.noaa.gov/cag/