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 2021. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, September 1929

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 1929
1-Month
65.0°F
(18.3°C)
66.2°F
(19.0°C)
-1.2°F
(-0.7°C)
40th Coolest Coolest since: 1928 1918
87th Warmest Warmest since: 1927 1925, 1933
Aug–Sep 1929
2-Month
68.2°F
(20.1°C)
69.8°F
(21.0°C)
-1.6°F
(-0.9°C)
20th Coolest Coolest since: 1928 1967
107th Warmest Warmest since: 1927 1936
Ties: 1896, 1903, 1962, 1975, 1981, 1993
Jul–Sep 1929
3-Month
70.6°F
(21.4°C)
71.7°F
(22.1°C)
-1.1°F
(-0.7°C)
28th Coolest Coolest since: 1928 1967
99th Warmest Warmest since: 1928 1936
Ties: 1903, 1907, 1928, 1949, 1963
Jun–Sep 1929
4-Month
70.1°F
(21.2°C)
71.6°F
(22.0°C)
-1.5°F
(-0.8°C)
20th Coolest Coolest since: 1928 1915, 1924
107th Warmest Warmest since: 1926 1936
Ties: 1976, 1985
May–Sep 1929
5-Month
67.9°F
(19.9°C)
69.7°F
(20.9°C)
-1.8°F
(-1.0°C)
12th Coolest Coolest since: 1927 1924
115th Warmest Warmest since: 1928 1936
Ties: 1950
Apr–Sep 1929
6-Month
65.6°F
(18.7°C)
66.7°F
(19.3°C)
-1.1°F
(-0.6°C)
26th Coolest Coolest since: 1928 1907
101st Warmest Warmest since: 1926 2010
Ties: 1903, 1926
Mar–Sep 1929
7-Month
62.7°F
(17.1°C)
62.8°F
(17.1°C)
-0.1°F
(0.0°C)
54th Coolest Coolest since: 1928 1924
73rd Warmest Warmest since: 1925 2012
Ties: 1976
Feb–Sep 1929
8-Month
57.6°F
(14.2°C)
58.7°F
(14.8°C)
-1.1°F
(-0.6°C)
25th Coolest Coolest since: 1928 1904
102nd Warmest Warmest since: 1927 2012
Ties: 1915, 1926
Jan–Sep 1929
9-Month
53.4°F
(11.9°C)
54.9°F
(12.7°C)
-1.5°F
(-0.8°C)
13th Coolest Coolest since: 1924 1904, 1912
114th Warmest Warmest since: 1928 2012
Ties: 1895, 1905, 1918, 1920, 1960
Dec 1928–Sep 1929
10-Month
51.3°F
(10.7°C)
52.4°F
(11.3°C)
-1.1°F
(-0.6°C)
21st Coolest Coolest since: 1924 1904
105th Warmest Warmest since: 1928 2012
Ties: 1958, 1962
Nov 1928–Sep 1929
11-Month
50.4°F
(10.2°C)
51.4°F
(10.8°C)
-1.0°F
(-0.6°C)
26th Coolest Coolest since: 1926 1904
100th Warmest Warmest since: 1928 2012
Ties: 1962
Oct 1928–Sep 1929
12-Month
50.9°F
(10.5°C)
51.6°F
(10.9°C)
-0.7°F
(-0.4°C)
31st Coolest Coolest since: 1926 1904
95th Warmest Warmest since: 1928 2012
Ties: 1910
Apr 1928–Sep 1929
18-Month
55.5°F
(13.1°C)
56.7°F
(13.7°C)
-1.2°F
(-0.6°C)
13th Coolest Coolest since: 1924 1904, 1918
113th Warmest Warmest since: 1928 2012
Ties: 1902, 1962, 1968, 1993, 1997
Oct 1927–Sep 1929
24-Month
51.1°F
(10.6°C)
51.6°F
(10.9°C)
-0.5°F
(-0.3°C)
33rd Coolest Coolest since: 1928 1979
92nd Warmest Warmest since: 1928 2017
Ties: 1928, 1959, 1960, 1967
Oct 1926–Sep 1929
36-Month
51.0°F
(10.6°C)
51.6°F
(10.9°C)
-0.6°F
(-0.3°C)
23rd Coolest Coolest since: 1928 1979
101st Warmest Warmest since: 1927 2018
Ties: 1899, 1903
Oct 1925–Sep 1929
48-Month
50.7°F
(10.4°C)
51.6°F
(10.9°C)
-0.9°F
(-0.5°C)
11th Coolest Coolest since: 1920 1905
112th Warmest Warmest since: 1928 2019
Ties: 1902, 1963
Oct 1924–Sep 1929
60-Month
51.2°F
(10.7°C)
51.6°F
(10.9°C)
-0.4°F
(-0.2°C)
29th Coolest Coolest since: 1928 1906
93rd Warmest Warmest since: 1926 2020
Ties: 1913, 1916, 1961, 1965, 1972

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2021, retrieved on September 21, 2021 from https://www.ncdc.noaa.gov/cag/