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 January 2021. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, December 1956

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
December 1956
1-Month
34.0°F
(1.1°C)
29.4°F
(-1.4°C)
4.6°F
(2.5°C)
102nd Coolest Coolest since: 1955 1983
25th Warmest Warmest since: 1949 2015
Nov–Dec 1956
2-Month
37.2°F
(2.9°C)
35.1°F
(1.7°C)
2.1°F
(1.2°C)
96th Coolest Coolest since: 1955 1950
31st Warmest Warmest since: 1953 2015
Ties: 1953
Oct–Dec 1956
3-Month
44.9°F
(7.2°C)
41.7°F
(5.4°C)
3.2°F
(1.8°C)
113th Coolest Coolest since: 1955 1976
14th Warmest Warmest since: 1946 1931
Ties: 1918, 1984
Sep–Dec 1956
4-Month
50.0°F
(10.0°C)
47.7°F
(8.7°C)
2.3°F
(1.3°C)
111th Coolest Coolest since: 1955 1976
16th Warmest Warmest since: 1953 1931
Ties: 1938, 1953, 1982
Aug–Dec 1956
5-Month
54.8°F
(12.7°C)
52.9°F
(11.6°C)
1.9°F
(1.1°C)
110th Coolest Coolest since: 1955 1976
17th Warmest Warmest since: 1953 1931
Ties: 1939
Jul–Dec 1956
6-Month
58.0°F
(14.4°C)
56.7°F
(13.7°C)
1.3°F
(0.7°C)
105th Coolest Coolest since: 1955 1976
22nd Warmest Warmest since: 1954 1931
Ties: 1922, 1934, 1994, 2020
Jun–Dec 1956
7-Month
60.2°F
(15.7°C)
58.8°F
(14.9°C)
1.4°F
(0.8°C)
103rd Coolest Coolest since: 1955 1917
24th Warmest Warmest since: 1954 1931
Ties: 1984, 1987, 2020
May–Dec 1956
8-Month
60.7°F
(15.9°C)
59.2°F
(15.1°C)
1.5°F
(0.8°C)
103rd Coolest Coolest since: 1955 1917
24th Warmest Warmest since: 1953 1931
Apr–Dec 1956
9-Month
59.4°F
(15.2°C)
58.3°F
(14.6°C)
1.1°F
(0.6°C)
95th Coolest Coolest since: 1955 1917
32nd Warmest Warmest since: 1954 1931
Ties: 1930, 1949, 1986, 2018
Mar–Dec 1956
10-Month
57.5°F
(14.2°C)
56.5°F
(13.6°C)
1.0°F
(0.6°C)
91st Coolest Coolest since: 1955 1917
36th Warmest Warmest since: 1954 2012
Ties: 1918
Feb–Dec 1956
11-Month
55.1°F
(12.8°C)
54.0°F
(12.2°C)
1.1°F
(0.6°C)
100th Coolest Coolest since: 1955 1917
27th Warmest Warmest since: 1954 2012
Ties: 1933, 1934, 1939, 1986, 1990, 2004, 2018
Jan–Dec 1956
12-Month
52.7°F
(11.5°C)
51.7°F
(10.9°C)
1.0°F
(0.6°C)
94th Coolest Coolest since: 1955 1917
33rd Warmest Warmest since: 1954 2012
Ties: 1911
Jul 1955–Dec 1956
18-Month
54.2°F
(12.3°C)
53.4°F
(11.9°C)
0.8°F
(0.4°C)
96th Coolest Coolest since: 1952 1904
30th Warmest Warmest since: 1955 2012
Ties: 1913, 1933, 2018
Jan 1955–Dec 1956
24-Month
52.5°F
(11.4°C)
51.6°F
(10.9°C)
0.9°F
(0.5°C)
95th Coolest Coolest since: 1952 1904, 1979
31st Warmest Warmest since: 1955 2017
Ties: 1947, 2003
Jan 1954–Dec 1956
36-Month
52.9°F
(11.6°C)
51.6°F
(10.9°C)
1.3°F
(0.7°C)
106th Coolest Coolest since: 1953 1905
19th Warmest Warmest since: 1955 2017
Ties: 1922, 2002, 2008
Jan 1953–Dec 1956
48-Month
53.1°F
(11.7°C)
51.6°F
(10.9°C)
1.5°F
(0.8°C)
115th Coolest Coolest since: 1955 1905
9th Warmest Warmest since: 1955 2001, 2018
Ties: 1955, 2002, 2008, 2020
Jan 1952–Dec 1956
60-Month
53.0°F
(11.7°C)
51.6°F
(10.9°C)
1.4°F
(0.8°C)
116th Coolest Coolest since: 1955 1905
7th Warmest Warmest since: 1935 2002
Ties: 1935, 2006, 2008

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published February 2021, retrieved on February 26, 2021 from https://www.ncdc.noaa.gov/cag/