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 1941

View Period (Months):All1234567891011121824364860
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 1941
1-Month
69.1°F
(20.6°C)
66.2°F
(19.0°C)
2.9°F
(1.6°C)
102nd Coolest Coolest since: 1940 1918
25th Warmest Warmest since: 1939 1925, 1933
Ties: 1922
Aug–Sep 1941
2-Month
72.2°F
(22.3°C)
69.8°F
(21.0°C)
2.4°F
(1.3°C)
109th Coolest Coolest since: 1940 1967
18th Warmest Warmest since: 1938 1936
Ties: 1938, 1960, 2002, 2019
Jul–Sep 1941
3-Month
73.5°F
(23.1°C)
71.7°F
(22.1°C)
1.8°F
(1.0°C)
102nd Coolest Coolest since: 1940 1967
25th Warmest Warmest since: 1938 1936
Jun–Sep 1941
4-Month
73.3°F
(22.9°C)
71.7°F
(22.1°C)
1.6°F
(0.8°C)
105th Coolest Coolest since: 1940 1915, 1924
22nd Warmest Warmest since: 1936 1936
Ties: 1930
May–Sep 1941
5-Month
71.8°F
(22.1°C)
69.7°F
(20.9°C)
2.1°F
(1.2°C)
113th Coolest Coolest since: 1940 1924
14th Warmest Warmest since: 1936 1936
Ties: 1959, 2016
Apr–Sep 1941
6-Month
69.2°F
(20.7°C)
66.7°F
(19.3°C)
2.5°F
(1.4°C)
120th Coolest Coolest since: 1940 1907
7th Warmest Warmest since: 1936 2010
Mar–Sep 1941
7-Month
64.3°F
(17.9°C)
62.8°F
(17.1°C)
1.5°F
(0.8°C)
107th Coolest Coolest since: 1940 1924
20th Warmest Warmest since: 1938 2012
Ties: 1911, 1922, 1954
Feb–Sep 1941
8-Month
59.6°F
(15.3°C)
58.7°F
(14.8°C)
0.9°F
(0.5°C)
90th Coolest Coolest since: 1940 1904
37th Warmest Warmest since: 1938 2012
Ties: 1919, 1976
Jan–Sep 1941
9-Month
56.2°F
(13.4°C)
55.0°F
(12.8°C)
1.2°F
(0.6°C)
92nd Coolest Coolest since: 1940 1904, 1912
35th Warmest Warmest since: 1939 2012
Ties: 1964, 1973, 2018
Dec 1940–Sep 1941
10-Month
54.0°F
(12.2°C)
52.4°F
(11.3°C)
1.6°F
(0.9°C)
101st Coolest Coolest since: 1940 1904
25th Warmest Warmest since: 1938 2012
Ties: 2010
Nov 1940–Sep 1941
11-Month
52.5°F
(11.4°C)
51.3°F
(10.7°C)
1.2°F
(0.7°C)
95th Coolest Coolest since: 1940 1904
31st Warmest Warmest since: 1939 2012
Ties: 1925, 1976, 2004, 2018
Oct 1940–Sep 1941
12-Month
53.0°F
(11.7°C)
51.6°F
(10.9°C)
1.4°F
(0.8°C)
104th Coolest Coolest since: 1940 1904
22nd Warmest Warmest since: 1939 2012
Ties: 1925, 1931, 1953
Apr 1940–Sep 1941
18-Month
57.4°F
(14.1°C)
56.7°F
(13.7°C)
0.7°F
(0.4°C)
89th Coolest Coolest since: 1940 1904, 1918
37th Warmest Warmest since: 1939 2012
Ties: 1938, 2008
Oct 1939–Sep 1941
24-Month
51.8°F
(11.0°C)
51.7°F
(10.9°C)
0.1°F
(0.1°C)
73rd Coolest Coolest since: 1937 1979
52nd Warmest Warmest since: 1940 2017
Ties: 1898, 1948, 1950, 1965, 1972, 1989, 2004
Oct 1938–Sep 1941
36-Month
52.3°F
(11.3°C)
51.6°F
(10.9°C)
0.7°F
(0.4°C)
88th Coolest Coolest since: 1940 1979
36th Warmest Warmest since: 1939 2018
Ties: 2003
Oct 1937–Sep 1941
48-Month
52.4°F
(11.3°C)
51.6°F
(10.9°C)
0.8°F
(0.4°C)
97th Coolest Coolest since: 1940 1905
26th Warmest Warmest since: 1935 2019
Ties: 1942, 1989, 1990, 2004, 2010, 2014
Oct 1936–Sep 1941
60-Month
52.2°F
(11.2°C)
51.6°F
(10.9°C)
0.6°F
(0.3°C)
83rd Coolest Coolest since: 1940 1906
39th Warmest Warmest since: 1939 2020
Ties: 1939, 1943, 1988, 1995

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published July 2021, retrieved on July 23, 2021 from https://www.ncdc.noaa.gov/cag/