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 August 2022. 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
(1895-2021)
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)
109th Coolest Coolest since: 1895 1918
19th Warmest Warmest to Date 1925, 1933
Ties: 1954, 2021
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 since: 1895 1967
27th 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 since: 1895 1967
53rd 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 since: 1895 1915, 1924
39th 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 since: 1895 1924
41st 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 since: 1895 1907
37th 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 since: 1895 1924
43rd Warmest Warmest to Date 2012
Ties: 1896, 1908, 1913, 1963, 1995, 1999, 2001, 2004
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 since: 1895 1904
96th 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 since: 1895 1904, 1912
115th 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, Average Temperature, published September 2022, retrieved on October 6, 2022 from https://www.ncdc.noaa.gov/cag/