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 1904

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 1904
1-Month
66.1°F
(18.9°C)
66.2°F
(19.0°C)
-0.1°F
(-0.1°C)
61st Coolest Coolest since: 1903 1918
66th Warmest Warmest since: 1900 1925, 1933
Ties: 1963
Aug–Sep 1904
2-Month
67.9°F
(19.9°C)
69.8°F
(21.0°C)
-1.9°F
(-1.1°C)
15th Coolest Coolest since: 1902 1967
112th Warmest Warmest since: 1903 1936
Ties: 1994
Jul–Sep 1904
3-Month
69.4°F
(20.8°C)
71.7°F
(22.1°C)
-2.3°F
(-1.3°C)
8th Coolest Coolest since: 1902 1967
119th Warmest Warmest since: 1903 1936
Jun–Sep 1904
4-Month
69.3°F
(20.7°C)
71.6°F
(22.0°C)
-2.3°F
(-1.3°C)
8th Coolest Coolest since: 1903 1915, 1924
119th Warmest Warmest since: 1903 1936
Ties: 1903
May–Sep 1904
5-Month
67.7°F
(19.8°C)
69.7°F
(20.9°C)
-2.0°F
(-1.1°C)
9th Coolest Coolest to Date 1924
118th Warmest Warmest since: 1903 1936
Apr–Sep 1904
6-Month
64.0°F
(17.8°C)
66.7°F
(19.3°C)
-2.7°F
(-1.5°C)
4th Coolest Coolest to Date 1907
123rd Warmest Warmest since: 1903 2010
Mar–Sep 1904
7-Month
60.4°F
(15.8°C)
62.9°F
(17.2°C)
-2.5°F
(-1.4°C)
3rd Coolest Coolest to Date 1924
124th Warmest Warmest since: 1903 2012
Ties: 1917
Feb–Sep 1904
8-Month
55.6°F
(13.1°C)
58.7°F
(14.8°C)
-3.1°F
(-1.7°C)
1st Coolest Coolest to Date 1904
126th Warmest Warmest since: 1903 2012
Jan–Sep 1904
9-Month
51.5°F
(10.8°C)
55.0°F
(12.8°C)
-3.5°F
(-2.0°C)
1st Coolest Coolest to Date 1904, 1912
126th Warmest Warmest since: 1903 2012
Ties: 1912
Dec 1903–Sep 1904
10-Month
48.6°F
(9.2°C)
52.4°F
(11.3°C)
-3.8°F
(-2.1°C)
1st Coolest Coolest to Date 1904
125th Warmest Warmest since: 1903 2012
Nov 1903–Sep 1904
11-Month
47.5°F
(8.6°C)
51.4°F
(10.8°C)
-3.9°F
(-2.2°C)
1st Coolest Coolest to Date 1904
125th Warmest Warmest since: 1903 2012
Oct 1903–Sep 1904
12-Month
48.0°F
(8.9°C)
51.6°F
(10.9°C)
-3.6°F
(-2.0°C)
1st Coolest Coolest to Date 1904
125th Warmest Warmest since: 1903 2012
Apr 1903–Sep 1904
18-Month
53.9°F
(12.2°C)
56.7°F
(13.7°C)
-2.8°F
(-1.5°C)
1st Coolest Coolest to Date 1904, 1918
125th Warmest Warmest since: 1903 2012
Ties: 1918
Oct 1902–Sep 1904
24-Month
49.8°F
(9.9°C)
51.6°F
(10.9°C)
-1.8°F
(-1.0°C)
5th Coolest Coolest to Date 1979
120th Warmest Warmest since: 1903 2017
Oct 1901–Sep 1904
36-Month
49.7°F
(9.8°C)
51.6°F
(10.9°C)
-1.9°F
(-1.1°C)
2nd Coolest Coolest to Date 1979
122nd Warmest Warmest since: 1903 2018
Oct 1900–Sep 1904
48-Month
50.3°F
(10.2°C)
51.6°F
(10.9°C)
-1.3°F
(-0.7°C)
5th Coolest Coolest to Date 1905
118th Warmest Warmest since: 1903 2019
Ties: 1906, 1979
Oct 1899–Sep 1904
60-Month
50.6°F
(10.3°C)
51.6°F
(10.9°C)
-1.0°F
(-0.6°C)
8th Coolest Coolest to Date 1906
114th Warmest Warmest since: 1903 2020
Ties: 1980

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2020, retrieved on October 30, 2020 from https://www.ncdc.noaa.gov/cag/