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


Illinois

Average Temperature Rankings, September 1895

View Period (Months):All123456789
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 1895
1-Month
69.6°F
(20.9°C)
66.2°F
(19.0°C)
3.4°F
(1.9°C)
108th Coolest Coolest to Date 1918
19th Warmest Warmest to Date 1925, 1933
Ties: 1954
Aug–Sep 1895
2-Month
71.8°F
(22.1°C)
69.8°F
(21.0°C)
2.0°F
(1.1°C)
101st Coolest Coolest to Date 1967
26th Warmest Warmest to Date 1936
Ties: 1913, 1939
Jul–Sep 1895
3-Month
72.2°F
(22.3°C)
71.7°F
(22.1°C)
0.5°F
(0.2°C)
75th Coolest Coolest to Date 1967
52nd Warmest Warmest to Date 1936
Ties: 1970, 1986, 2015
Jun–Sep 1895
4-Month
72.6°F
(22.6°C)
71.7°F
(22.1°C)
0.9°F
(0.5°C)
89th Coolest Coolest to Date 1915, 1924
38th Warmest Warmest to Date 1936
Ties: 1897, 1922, 1938, 1978
May–Sep 1895
5-Month
70.6°F
(21.4°C)
69.7°F
(20.9°C)
0.9°F
(0.5°C)
87th Coolest Coolest to Date 1924
40th Warmest Warmest to Date 1936
Ties: 2015
Apr–Sep 1895
6-Month
67.8°F
(19.9°C)
66.7°F
(19.3°C)
1.1°F
(0.6°C)
91st Coolest Coolest to Date 1907
36th Warmest Warmest to Date 2010
Ties: 2001, 2017
Mar–Sep 1895
7-Month
63.5°F
(17.5°C)
62.9°F
(17.2°C)
0.6°F
(0.3°C)
85th Coolest Coolest to Date 1924
42nd Warmest Warmest to Date 2012
Ties: 1896, 1908, 1913, 1963, 1995, 1999, 2001, 2004, 2020
Feb–Sep 1895
8-Month
57.8°F
(14.3°C)
58.7°F
(14.8°C)
-0.9°F
(-0.5°C)
32nd Coolest Coolest to Date 1904
95th Warmest Warmest to Date 2012
Ties: 1916, 1940
Jan–Sep 1895
9-Month
53.4°F
(11.9°C)
54.9°F
(12.7°C)
-1.5°F
(-0.8°C)
13th Coolest Coolest to Date 1904, 1912
114th Warmest Warmest to Date 2012
Ties: 1905, 1918, 1920, 1929, 1960

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published July 2021, retrieved on August 6, 2021 from https://www.ncdc.noaa.gov/cag/