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 1930

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
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)
95th Coolest Coolest since: 1929 1918
33rd 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)
102nd Coolest Coolest since: 1929 1967
26th 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)
117th 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)
105th Coolest Coolest since: 1929 1915, 1924
23rd 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)
102nd 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)
110th 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)
103rd Coolest Coolest since: 1929 1924
25th 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)
116th 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)
97th Coolest Coolest since: 1929 1904, 1912
31st 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
32nd 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
41st 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
48th 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
74th 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
77th 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
79th 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
90th 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
105th Warmest Warmest since: 1929 2020
Ties: 1902, 1927, 1928, 1969

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Average Temperature, published September 2022, retrieved on September 30, 2022 from https://www.ncdc.noaa.gov/cag/