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


Illinois

Average Temperature Rankings, September 1934

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 1934
1-Month
64.0°F
(17.8°C)
66.2°F
(19.0°C)
-2.2°F
(-1.2°C)
21st Coolest Coolest since: 1928 1918
105th Warmest Warmest since: 1933 1925, 1933
Aug–Sep 1934
2-Month
69.2°F
(20.7°C)
69.8°F
(21.0°C)
-0.6°F
(-0.3°C)
42nd Coolest Coolest since: 1929 1967
84th Warmest Warmest since: 1933 1936
Ties: 1923, 1943, 1969, 2006, 2011, 2012, 2014
Jul–Sep 1934
3-Month
73.1°F
(22.8°C)
71.7°F
(22.1°C)
1.4°F
(0.7°C)
97th Coolest Coolest since: 1932 1967
29th Warmest Warmest since: 1933 1936
Ties: 1919, 1939, 1959
Jun–Sep 1934
4-Month
74.4°F
(23.6°C)
71.6°F
(22.0°C)
2.8°F
(1.6°C)
120th Coolest Coolest since: 1932 1915, 1924
6th Warmest Warmest since: 1933 1936
Ties: 2005
May–Sep 1934
5-Month
73.0°F
(22.8°C)
69.8°F
(21.0°C)
3.2°F
(1.8°C)
123rd Coolest Coolest since: 1933 1924
3rd Warmest Warmest to Date 1936
Apr–Sep 1934
6-Month
69.5°F
(20.8°C)
66.7°F
(19.3°C)
2.8°F
(1.5°C)
123rd Coolest Coolest since: 1933 1907
3rd Warmest Warmest since: 1921 2010
Ties: 1921, 1991
Mar–Sep 1934
7-Month
64.7°F
(18.2°C)
62.9°F
(17.2°C)
1.8°F
(1.0°C)
112th Coolest Coolest since: 1933 1924
14th Warmest Warmest since: 1933 2012
Ties: 1933, 1938, 1986, 2005
Feb–Sep 1934
8-Month
59.7°F
(15.4°C)
58.7°F
(14.8°C)
1.0°F
(0.6°C)
91st Coolest Coolest since: 1932 1904
35th Warmest Warmest since: 1933 2012
Ties: 1973
Jan–Sep 1934
9-Month
56.6°F
(13.7°C)
54.9°F
(12.7°C)
1.7°F
(1.0°C)
103rd Coolest Coolest since: 1932 1904, 1912
23rd Warmest Warmest since: 1933 2012
Ties: 1986
Dec 1933–Sep 1934
10-Month
54.3°F
(12.4°C)
52.4°F
(11.3°C)
1.9°F
(1.1°C)
106th Coolest Coolest since: 1931 1904
19th Warmest Warmest since: 1933 2012
Ties: 1931, 2006
Nov 1933–Sep 1934
11-Month
53.0°F
(11.7°C)
51.4°F
(10.8°C)
1.6°F
(0.9°C)
103rd Coolest Coolest since: 1933 1904
22nd Warmest Warmest since: 1932 2012
Ties: 1914, 1988
Oct 1933–Sep 1934
12-Month
52.9°F
(11.6°C)
51.6°F
(10.9°C)
1.3°F
(0.7°C)
99th Coolest Coolest since: 1933 1904
26th Warmest Warmest since: 1933 2012
Ties: 1914, 1933, 2018
Apr 1933–Sep 1934
18-Month
58.3°F
(14.6°C)
56.7°F
(13.7°C)
1.6°F
(0.9°C)
112th Coolest Coolest since: 1933 1904, 1918
13th Warmest Warmest since: 1932 2012
Ties: 1922, 2005, 2007
Oct 1932–Sep 1934
24-Month
52.9°F
(11.6°C)
51.6°F
(10.9°C)
1.3°F
(0.7°C)
103rd Coolest Coolest since: 1931 1979
21st Warmest Warmest since: 1933 2017
Ties: 1942, 2002
Oct 1931–Sep 1934
36-Month
53.4°F
(11.9°C)
51.6°F
(10.9°C)
1.8°F
(1.0°C)
114th Coolest Coolest since: 1932 1979
9th Warmest Warmest since: 1933 2018
Ties: 1955
Oct 1930–Sep 1934
48-Month
53.3°F
(11.8°C)
51.6°F
(10.9°C)
1.7°F
(0.9°C)
116th Coolest Coolest since: 1933 1905
6th Warmest Warmest to Date 2019
Ties: 2001, 2008
Oct 1929–Sep 1934
60-Month
53.1°F
(11.7°C)
51.6°F
(10.9°C)
1.5°F
(0.8°C)
116th Coolest Coolest since: 1933 1906
5th Warmest Warmest to Date 2002
Ties: 1935

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published February 2020, retrieved on February 18, 2020 from https://www.ncdc.noaa.gov/cag/