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 December 2019. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, December 1900

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
December 1900
1-Month
30.8°F
(-0.7°C)
29.4°F
(-1.4°C)
1.4°F
(0.7°C)
67th Coolest Coolest since: 1899 1983
59th Warmest Warmest since: 1896 2015
Nov–Dec 1900
2-Month
35.0°F
(1.7°C)
35.1°F
(1.7°C)
-0.1°F
(0.0°C)
52nd Coolest Coolest since: 1898 1950
74th Warmest Warmest since: 1899 2015
Ties: 1906, 1920, 2018
Oct–Dec 1900
3-Month
43.6°F
(6.4°C)
41.7°F
(5.4°C)
1.9°F
(1.0°C)
98th Coolest Coolest since: 1899 1976
28th Warmest Warmest to Date 1931
Sep–Dec 1900
4-Month
49.8°F
(9.9°C)
47.8°F
(8.8°C)
2.0°F
(1.1°C)
104th Coolest Coolest since: 1899 1976
22nd Warmest Warmest to Date 1931
Aug–Dec 1900
5-Month
55.6°F
(13.1°C)
52.9°F
(11.6°C)
2.7°F
(1.5°C)
116th Coolest Coolest since: 1899 1976
10th Warmest Warmest to Date 1931
Jul–Dec 1900
6-Month
58.7°F
(14.8°C)
56.6°F
(13.7°C)
2.1°F
(1.1°C)
114th Coolest Coolest since: 1899 1976
12th Warmest Warmest to Date 1931
Ties: 1971
Jun–Dec 1900
7-Month
60.4°F
(15.8°C)
58.8°F
(14.9°C)
1.6°F
(0.9°C)
106th Coolest Coolest since: 1899 1917
20th Warmest Warmest to Date 1931
Ties: 1938, 1939
May–Dec 1900
8-Month
60.8°F
(16.0°C)
59.2°F
(15.1°C)
1.6°F
(0.9°C)
104th Coolest Coolest since: 1899 1917
22nd Warmest Warmest to Date 1931
Ties: 1922
Apr–Dec 1900
9-Month
59.9°F
(15.5°C)
58.4°F
(14.7°C)
1.5°F
(0.8°C)
106th Coolest Coolest since: 1899 1917
20th Warmest Warmest to Date 1931
Ties: 1922, 1933, 1971
Mar–Dec 1900
10-Month
57.3°F
(14.1°C)
56.5°F
(13.6°C)
0.8°F
(0.5°C)
87th Coolest Coolest since: 1899 1917
39th Warmest Warmest to Date 2012
Ties: 1930, 1955, 1959
Feb–Dec 1900
11-Month
54.1°F
(12.3°C)
54.0°F
(12.2°C)
0.1°F
(0.1°C)
63rd Coolest Coolest since: 1899 1917
63rd Warmest Warmest since: 1896 2012
Ties: 1919, 1983
Jan–Dec 1900
12-Month
52.1°F
(11.2°C)
51.6°F
(10.9°C)
0.5°F
(0.3°C)
81st Coolest Coolest since: 1899 1917
45th Warmest Warmest since: 1896 2012
Ties: 1919, 1988, 2019
Jul 1899–Dec 1900
18-Month
53.9°F
(12.2°C)
53.3°F
(11.8°C)
0.6°F
(0.4°C)
90th Coolest Coolest since: 1899 1904
35th Warmest Warmest to Date 2012
Ties: 1919, 1948, 1957, 1971, 1983
Jan 1899–Dec 1900
24-Month
51.5°F
(10.8°C)
51.7°F
(10.9°C)
-0.2°F
(-0.1°C)
58th Coolest Coolest since: 1899 1904, 1979
67th Warmest Warmest since: 1897 2017
Ties: 1920, 1945, 1948, 1981
Jan 1898–Dec 1900
36-Month
51.4°F
(10.8°C)
51.6°F
(10.9°C)
-0.2°F
(-0.1°C)
48th Coolest Coolest since: 1899 1905
76th Warmest Warmest since: 1898 2017
Ties: 1908, 1914, 1920, 1927, 1950, 1964
Jan 1897–Dec 1900
48-Month
51.4°F
(10.8°C)
51.6°F
(10.9°C)
-0.2°F
(-0.1°C)
41st Coolest Coolest since: 1899 1905
82nd Warmest Warmest since: 1899 2001, 2018
Ties: 1899, 1913, 1925, 1928, 1945, 1950, 1966, 1967, 1977, 1983
Jan 1896–Dec 1900
60-Month
51.6°F
(10.9°C)
51.6°F
(10.9°C)
0.0°F
(0.0°C)
55th Coolest Coolest since: 1899 1905
67th Warmest Warmest to Date 2002
Ties: 1986

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2020, retrieved on January 26, 2020 from https://www.ncdc.noaa.gov/cag/