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 August 2022. For more information, please see Climatological Rankings.


Illinois, Climate Division 3. West

Average Temperature Rankings, December 2015

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
December 2015
1-Month
39.4°F
(4.1°C)
28.3°F
(-2.1°C)
11.1°F
(6.2°C)
127th Coolest Coolest since: 2014 1983
1st Warmest Warmest to Date 2015
Nov–Dec 2015
2-Month
42.6°F
(5.9°C)
34.2°F
(1.2°C)
8.4°F
(4.7°C)
126th Coolest Coolest since: 2014 2000
2nd Warmest Warmest since: 2001 1931
Ties: 2001
Oct–Dec 2015
3-Month
46.9°F
(8.3°C)
41.0°F
(5.0°C)
5.9°F
(3.3°C)
126th Coolest Coolest since: 2014 1976
2nd Warmest Warmest since: 1931 1931
Sep–Dec 2015
4-Month
52.9°F
(11.6°C)
47.2°F
(8.4°C)
5.7°F
(3.2°C)
126th Coolest Coolest since: 2014 1976
2nd Warmest Warmest since: 1931 1931
Aug–Dec 2015
5-Month
56.6°F
(13.7°C)
52.5°F
(11.4°C)
4.1°F
(2.3°C)
126th Coolest Coolest since: 2014 1976
2nd Warmest Warmest since: 1931 1931
Ties: 2021
Jul–Dec 2015
6-Month
59.5°F
(15.3°C)
56.5°F
(13.6°C)
3.0°F
(1.7°C)
123rd Coolest Coolest since: 2014 1976
5th Warmest Warmest since: 1936 1931
Jun–Dec 2015
7-Month
61.2°F
(16.2°C)
58.6°F
(14.8°C)
2.6°F
(1.4°C)
119th Coolest Coolest since: 2014 1976
9th Warmest Warmest since: 1953 1931
May–Dec 2015
8-Month
61.6°F
(16.4°C)
59.1°F
(15.1°C)
2.5°F
(1.3°C)
121st Coolest Coolest since: 2014 1917
7th Warmest Warmest since: 1998 1931
Ties: 2016
Apr–Dec 2015
9-Month
60.8°F
(16.0°C)
58.2°F
(14.6°C)
2.6°F
(1.4°C)
123rd Coolest Coolest since: 2014 1917
5th Warmest Warmest since: 1941 1931
Mar–Dec 2015
10-Month
58.6°F
(14.8°C)
56.3°F
(13.5°C)
2.3°F
(1.3°C)
118th Coolest Coolest since: 2014 1917
10th Warmest Warmest since: 2012 2012
Ties: 1934, 2007
Feb–Dec 2015
11-Month
54.9°F
(12.7°C)
53.7°F
(12.1°C)
1.2°F
(0.6°C)
99th Coolest Coolest since: 2014 1917
29th Warmest Warmest since: 2012 2012
Ties: 1918, 1933, 1977
Jan–Dec 2015
12-Month
52.4°F
(11.3°C)
51.3°F
(10.7°C)
1.1°F
(0.6°C)
100th Coolest Coolest since: 2014 1917
28th Warmest Warmest since: 2012 2012
Ties: 1911, 1956, 2020
Jul 2014–Dec 2015
18-Month
53.1°F
(11.7°C)
53.0°F
(11.7°C)
0.1°F
(0.0°C)
69th Coolest Coolest since: 2014 1904
58th Warmest Warmest since: 2012 2012
Ties: 1928, 1974
Jan 2014–Dec 2015
24-Month
50.5°F
(10.3°C)
51.3°F
(10.7°C)
-0.8°F
(-0.4°C)
22nd Coolest Coolest since: 2014 1979
105th Warmest Warmest since: 2013 2017
Ties: 1899, 1906, 1929, 1959, 1960, 1962
Jan 2013–Dec 2015
36-Month
50.4°F
(10.2°C)
51.2°F
(10.7°C)
-0.8°F
(-0.5°C)
19th Coolest Coolest since: 1997 1905
107th Warmest Warmest since: 2014 2017
Ties: 1970
Jan 2012–Dec 2015
48-Month
51.5°F
(10.8°C)
51.2°F
(10.7°C)
0.3°F
(0.1°C)
75th Coolest Coolest since: 2014 1905
50th Warmest Warmest since: 2014 1934
Ties: 1916, 1948, 2014
Jan 2011–Dec 2015
60-Month
51.7°F
(10.9°C)
51.2°F
(10.7°C)
0.5°F
(0.2°C)
80th Coolest Coolest since: 2014 1905
44th Warmest Warmest since: 2013 1934
Ties: 1924, 1943, 1949, 1994

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, Average Temperature, published September 2022, retrieved on October 6, 2022 from https://www.ncdc.noaa.gov/cag/