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


Illinois

Average Temperature Rankings, December 1984

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2018)
Warmest/Coolest
Since
Record
December 1984
1-Month
35.8°F
(2.1°C)
29.4°F
(-1.4°C)
6.4°F
(3.5°C)
113th Coolest Coolest since: 1983 1983
12th Warmest Warmest since: 1982 2015
Ties: 2001
Nov–Dec 1984
2-Month
38.4°F
(3.6°C)
35.1°F
(1.7°C)
3.3°F
(1.9°C)
102nd Coolest Coolest since: 1983 1950
23rd Warmest Warmest since: 1982 2015
Oct–Dec 1984
3-Month
44.9°F
(7.2°C)
41.7°F
(5.4°C)
3.2°F
(1.8°C)
111th Coolest Coolest since: 1983 1976
14th Warmest Warmest since: 1982 1931
Ties: 1918, 1956
Sep–Dec 1984
4-Month
49.7°F
(9.8°C)
47.7°F
(8.7°C)
2.0°F
(1.1°C)
102nd Coolest Coolest since: 1983 1976
23rd Warmest Warmest since: 1982 1931
Aug–Dec 1984
5-Month
54.7°F
(12.6°C)
52.9°F
(11.6°C)
1.8°F
(1.0°C)
106th Coolest Coolest since: 1983 1976
19th Warmest Warmest since: 1971 1931
Ties: 1922
Jul–Dec 1984
6-Month
57.8°F
(14.3°C)
56.7°F
(13.7°C)
1.1°F
(0.6°C)
96th Coolest Coolest since: 1983 1976
29th Warmest Warmest since: 1980 1931
Ties: 1940, 1946, 1980, 1987
Jun–Dec 1984
7-Month
60.2°F
(15.7°C)
58.8°F
(14.9°C)
1.4°F
(0.8°C)
101st Coolest Coolest since: 1983 1917
24th Warmest Warmest since: 1971 1931
Ties: 1956, 1987
May–Dec 1984
8-Month
60.1°F
(15.6°C)
59.2°F
(15.1°C)
0.9°F
(0.5°C)
89th Coolest Coolest since: 1983 1917
36th Warmest Warmest since: 1982 1931
Ties: 1899, 1911, 1959, 1980, 1982
Apr–Dec 1984
9-Month
59.0°F
(15.0°C)
58.4°F
(14.7°C)
0.6°F
(0.3°C)
77th Coolest Coolest since: 1983 1917
48th Warmest Warmest since: 1980 1931
Ties: 1975, 1980, 2004
Mar–Dec 1984
10-Month
56.4°F
(13.6°C)
56.5°F
(13.6°C)
-0.1°F
(0.0°C)
53rd Coolest Coolest since: 1983 1917
72nd Warmest Warmest since: 1982 2012
Ties: 1919, 1923, 1940, 1944, 1968, 1981, 1995, 2009
Feb–Dec 1984
11-Month
54.5°F
(12.5°C)
54.0°F
(12.2°C)
0.5°F
(0.3°C)
78th Coolest Coolest since: 1983 1917
47th Warmest Warmest since: 1977 2012
Ties: 1908, 1927, 1948, 1964, 2000
Jan–Dec 1984
12-Month
51.8°F
(11.0°C)
51.6°F
(10.9°C)
0.2°F
(0.1°C)
67th Coolest Coolest since: 1982 1917
58th Warmest Warmest since: 1983 2012
Ties: 1925, 1957, 1981
Jul 1983–Dec 1984
18-Month
53.5°F
(11.9°C)
53.3°F
(11.8°C)
0.2°F
(0.1°C)
67th Coolest Coolest since: 1982 1904
57th Warmest Warmest since: 1983 2012
Ties: 1935, 1947, 2013
Jan 1983–Dec 1984
24-Month
51.9°F
(11.1°C)
51.6°F
(10.9°C)
0.3°F
(0.2°C)
77th Coolest Coolest since: 1983 1904, 1979
47th Warmest Warmest since: 1974 2017
Ties: 1940
Jan 1982–Dec 1984
36-Month
51.5°F
(10.8°C)
51.6°F
(10.9°C)
-0.1°F
(-0.1°C)
55th Coolest Coolest since: 1983 1905
68th Warmest Warmest since: 1983 2017
Ties: 1911, 1958, 1983, 1985, 1995
Jan 1981–Dec 1984
48-Month
51.6°F
(10.9°C)
51.6°F
(10.9°C)
0.0°F
(0.0°C)
55th Coolest Coolest since: 1983 1905
67th Warmest Warmest since: 1976 2001, 2018
Ties: 1959, 1995
Jan 1980–Dec 1984
60-Month
51.5°F
(10.8°C)
51.6°F
(10.9°C)
-0.1°F
(-0.1°C)
50th Coolest Coolest since: 1983 1905
71st Warmest Warmest since: 1977 2002
Ties: 1914, 1915, 1921, 1976

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published December 2019, retrieved on December 13, 2019 from https://www.ncdc.noaa.gov/cag/