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


Illinois

Average Temperature Rankings, September 1930

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 1930
1-Month
68.5°F
(20.3°C)
66.2°F
(19.0°C)
2.3°F
(1.3°C)
94th Coolest Coolest since: 1929 1918
32nd Warmest Warmest since: 1927 1925, 1933
Ties: 1920
Aug–Sep 1930
2-Month
71.9°F
(22.2°C)
69.8°F
(21.0°C)
2.1°F
(1.2°C)
101st Coolest Coolest since: 1929 1967
25th Warmest Warmest since: 1925 1936
Jul–Sep 1930
3-Month
74.1°F
(23.4°C)
71.8°F
(22.1°C)
2.3°F
(1.3°C)
115th Coolest Coolest since: 1929 1967
11th Warmest Warmest since: 1921 1936
Jun–Sep 1930
4-Month
73.3°F
(22.9°C)
71.6°F
(22.0°C)
1.7°F
(0.9°C)
104th Coolest Coolest since: 1929 1915, 1924
22nd Warmest Warmest since: 1925 1936
Ties: 1941
May–Sep 1930
5-Month
71.3°F
(21.8°C)
69.8°F
(21.0°C)
1.5°F
(0.8°C)
100th Coolest Coolest since: 1929 1924
26th Warmest Warmest since: 1921 1936
Ties: 1977
Apr–Sep 1930
6-Month
68.5°F
(20.3°C)
66.7°F
(19.3°C)
1.8°F
(1.0°C)
108th Coolest Coolest since: 1929 1907
18th Warmest Warmest since: 1925 2010
Ties: 1925
Mar–Sep 1930
7-Month
64.2°F
(17.9°C)
62.8°F
(17.1°C)
1.4°F
(0.8°C)
102nd Coolest Coolest since: 1929 1924
24th Warmest Warmest since: 1925 2012
Ties: 2017, 2018
Feb–Sep 1930
8-Month
61.0°F
(16.1°C)
58.6°F
(14.8°C)
2.4°F
(1.3°C)
114th Coolest Coolest since: 1929 1904
12th Warmest Warmest since: 1925 2012
Ties: 1925, 1977
Jan–Sep 1930
9-Month
56.3°F
(13.5°C)
54.9°F
(12.7°C)
1.4°F
(0.8°C)
96th Coolest Coolest since: 1929 1904, 1912
30th Warmest Warmest since: 1925 2012
Ties: 1944, 1983, 1999
Dec 1929–Sep 1930
10-Month
53.6°F
(12.0°C)
52.4°F
(11.3°C)
1.2°F
(0.7°C)
95th Coolest Coolest since: 1929 1904
30th Warmest Warmest since: 1925 2012
Ties: 1914, 1925, 1952, 1995
Nov 1929–Sep 1930
11-Month
52.0°F
(11.1°C)
51.3°F
(10.7°C)
0.7°F
(0.4°C)
86th Coolest Coolest since: 1929 1904
39th Warmest Warmest since: 1925 2012
Ties: 1896, 1946, 1986, 2013
Oct 1929–Sep 1930
12-Month
52.1°F
(11.2°C)
51.6°F
(10.9°C)
0.5°F
(0.3°C)
79th Coolest Coolest since: 1929 1904
46th Warmest Warmest since: 1925 2012
Ties: 1900, 1952, 2011
Apr 1929–Sep 1930
18-Month
56.6°F
(13.7°C)
56.7°F
(13.7°C)
-0.1°F
(0.0°C)
53rd Coolest Coolest since: 1929 1904, 1918
72nd Warmest Warmest since: 1925 2012
Ties: 1925, 1943, 1966, 1971, 1973, 1985
Oct 1928–Sep 1930
24-Month
51.5°F
(10.8°C)
51.6°F
(10.9°C)
-0.1°F
(-0.1°C)
49th Coolest Coolest since: 1929 1979
75th Warmest Warmest since: 1923 2017
Ties: 1993
Oct 1927–Sep 1930
36-Month
51.4°F
(10.8°C)
51.6°F
(10.9°C)
-0.2°F
(-0.1°C)
46th Coolest Coolest since: 1929 1979
77th Warmest Warmest since: 1925 2018
Ties: 1924, 1958, 1965
Oct 1926–Sep 1930
48-Month
51.3°F
(10.7°C)
51.6°F
(10.9°C)
-0.3°F
(-0.2°C)
34th Coolest Coolest since: 1929 1905
88th Warmest Warmest since: 1928 2019
Ties: 1900, 1903, 1909, 1928, 1951, 1960, 1964, 1965, 1984
Oct 1925–Sep 1930
60-Month
51.0°F
(10.6°C)
51.6°F
(10.9°C)
-0.6°F
(-0.3°C)
18th Coolest Coolest since: 1928 1906
103rd Warmest Warmest since: 1929 2002
Ties: 1902, 1927, 1928, 1969

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published August 2020, retrieved on August 7, 2020 from https://www.ncdc.noaa.gov/cag/