Climate at a Glance

Divisional 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 May 2022. For more information, please see Climatological Rankings.


Illinois, Climate Division 3. West

Average Temperature Rankings, December 2020

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
December 2020
1-Month
31.6°F
(-0.2°C)
28.3°F
(-2.1°C)
3.3°F
(1.9°C)
88th Coolest Coolest since: 2017 1983
40th Warmest Warmest since: 2019 2015
Ties: 1947, 1975
Nov–Dec 2020
2-Month
39.1°F
(3.9°C)
34.2°F
(1.2°C)
4.9°F
(2.7°C)
116th Coolest Coolest since: 2019 2000
12th Warmest Warmest since: 2015 1931
Oct–Dec 2020
3-Month
42.9°F
(6.1°C)
41.0°F
(5.0°C)
1.9°F
(1.1°C)
97th Coolest Coolest since: 2019 1976
31st Warmest Warmest since: 2016 1931
Ties: 1912, 1923
Sep–Dec 2020
4-Month
48.3°F
(9.1°C)
47.2°F
(8.4°C)
1.1°F
(0.7°C)
81st Coolest Coolest since: 2018 1976
47th Warmest Warmest since: 2019 1931
Ties: 1930, 1979
Aug–Dec 2020
5-Month
53.2°F
(11.8°C)
52.5°F
(11.4°C)
0.7°F
(0.4°C)
78th Coolest Coolest since: 2019 1976
50th Warmest Warmest since: 2019 1931
Ties: 1897, 1980, 2010, 2019
Jul–Dec 2020
6-Month
57.2°F
(14.0°C)
56.5°F
(13.6°C)
0.7°F
(0.4°C)
83rd Coolest Coolest since: 2018 1976
45th Warmest Warmest since: 2019 1931
Ties: 1908, 1973, 1982, 1984, 2003, 2010
Jun–Dec 2020
7-Month
59.5°F
(15.3°C)
58.6°F
(14.8°C)
0.9°F
(0.5°C)
88th Coolest Coolest since: 2019 1976
40th Warmest Warmest since: 2016 1931
Ties: 1975, 1980, 2006
May–Dec 2020
8-Month
59.6°F
(15.3°C)
59.1°F
(15.1°C)
0.5°F
(0.2°C)
79th Coolest Coolest since: 2019 1917
49th Warmest Warmest since: 2019 1931
Ties: 1948, 1962, 1982, 1984, 2019
Apr–Dec 2020
9-Month
58.4°F
(14.7°C)
58.2°F
(14.6°C)
0.2°F
(0.1°C)
60th Coolest Coolest since: 2014 1917
68th Warmest Warmest since: 2019 1931
Ties: 1944, 2003, 2004
Mar–Dec 2020
10-Month
56.9°F
(13.8°C)
56.3°F
(13.5°C)
0.6°F
(0.3°C)
81st Coolest Coolest since: 2019 1917
47th Warmest Warmest since: 2018 2012
Ties: 1959, 2018
Feb–Dec 2020
11-Month
54.5°F
(12.5°C)
53.7°F
(12.1°C)
0.8°F
(0.4°C)
89th Coolest Coolest since: 2019 1917
39th Warmest Warmest since: 2017 2012
Ties: 1957, 1986, 1994
Jan–Dec 2020
12-Month
52.4°F
(11.3°C)
51.2°F
(10.7°C)
1.2°F
(0.6°C)
100th Coolest Coolest since: 2019 1917
28th Warmest Warmest since: 2017 2012
Ties: 1911, 1956, 2015
Jul 2019–Dec 2020
18-Month
54.0°F
(12.2°C)
52.9°F
(11.6°C)
1.1°F
(0.6°C)
101st Coolest Coolest since: 2019 1904
26th Warmest Warmest since: 2017 2012
Ties: 1949, 1955
Jan 2019–Dec 2020
24-Month
51.8°F
(11.0°C)
51.2°F
(10.7°C)
0.6°F
(0.3°C)
88th Coolest Coolest since: 2019 1979
39th Warmest Warmest since: 2018 2017
Ties: 1941, 1946
Jan 2018–Dec 2020
36-Month
51.8°F
(11.0°C)
51.3°F
(10.7°C)
0.5°F
(0.3°C)
87th Coolest Coolest since: 2016 1905
39th Warmest Warmest since: 2019 2017
Ties: 1915, 1946, 2004
Jan 2017–Dec 2020
48-Month
52.3°F
(11.3°C)
51.3°F
(10.7°C)
1.0°F
(0.6°C)
106th Coolest Coolest since: 2017 1905
19th Warmest Warmest since: 2019 1934
Ties: 1935, 1939, 1957
Jan 2016–Dec 2020
60-Month
52.6°F
(11.4°C)
51.2°F
(10.7°C)
1.4°F
(0.7°C)
120th Coolest Coolest since: 2019 1905
4th Warmest Warmest since: 2019 1934
Ties: 1956, 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published June 2022, retrieved on June 28, 2022 from https://www.ncdc.noaa.gov/cag/