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 1997

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
December 1997
1-Month
32.0°F
(0.0°C)
29.4°F
(-1.4°C)
2.6°F
(1.4°C)
80th Coolest Coolest since: 1996 1983
46th Warmest Warmest since: 1994 2015
Nov–Dec 1997
2-Month
35.3°F
(1.8°C)
35.1°F
(1.7°C)
0.2°F
(0.1°C)
59th Coolest Coolest since: 1996 1950
67th Warmest Warmest since: 1994 2015
Oct–Dec 1997
3-Month
41.8°F
(5.4°C)
41.6°F
(5.3°C)
0.2°F
(0.1°C)
68th Coolest Coolest since: 1996 1976
58th Warmest Warmest since: 1994 1931
Ties: 2019
Sep–Dec 1997
4-Month
48.0°F
(8.9°C)
47.8°F
(8.8°C)
0.2°F
(0.1°C)
61st Coolest Coolest since: 1996 1976
65th Warmest Warmest since: 1994 1931
Ties: 1928, 1930, 1963
Aug–Dec 1997
5-Month
52.6°F
(11.4°C)
52.9°F
(11.6°C)
-0.3°F
(-0.2°C)
48th Coolest Coolest since: 1996 1976
78th Warmest Warmest since: 1994 1931
Ties: 1916, 1958, 1964, 1968, 1983, 2009
Jul–Dec 1997
6-Month
56.3°F
(13.5°C)
56.7°F
(13.7°C)
-0.4°F
(-0.2°C)
47th Coolest Coolest since: 1996 1976
79th Warmest Warmest since: 1995 1931
Ties: 1901, 1963, 1966, 1995
Jun–Dec 1997
7-Month
58.4°F
(14.7°C)
58.8°F
(14.9°C)
-0.4°F
(-0.2°C)
44th Coolest Coolest since: 1996 1917
82nd Warmest Warmest since: 1995 1931
Ties: 1905, 1961, 1966, 2008
May–Dec 1997
8-Month
58.3°F
(14.6°C)
59.2°F
(15.1°C)
-0.9°F
(-0.5°C)
28th Coolest Coolest since: 1996 1917
98th Warmest Warmest since: 1995 1931
Ties: 1937, 1961, 1966, 1981
Apr–Dec 1997
9-Month
57.1°F
(13.9°C)
58.4°F
(14.7°C)
-1.3°F
(-0.8°C)
21st Coolest Coolest since: 1996 1917
105th Warmest Warmest since: 1995 1931
Ties: 1898
Mar–Dec 1997
10-Month
55.7°F
(13.2°C)
56.5°F
(13.6°C)
-0.8°F
(-0.4°C)
30th Coolest Coolest since: 1996 1917
96th Warmest Warmest since: 1995 2012
Ties: 1929
Feb–Dec 1997
11-Month
53.7°F
(12.1°C)
54.1°F
(12.3°C)
-0.4°F
(-0.2°C)
49th Coolest Coolest since: 1996 1917
77th Warmest Warmest since: 1995 2012
Ties: 1914, 1932, 1962
Jan–Dec 1997
12-Month
51.0°F
(10.6°C)
51.7°F
(10.9°C)
-0.7°F
(-0.3°C)
41st Coolest Coolest since: 1996 1917
85th Warmest Warmest since: 1995 2012
Ties: 1943
Jul 1996–Dec 1997
18-Month
52.3°F
(11.3°C)
53.3°F
(11.8°C)
-1.0°F
(-0.5°C)
17th Coolest Coolest since: 1996 1904
108th Warmest Warmest since: 1995 2012
Ties: 1929, 1958, 1969, 1993
Jan 1996–Dec 1997
24-Month
50.5°F
(10.3°C)
51.6°F
(10.9°C)
-1.1°F
(-0.6°C)
10th Coolest Coolest since: 1980 1904, 1979
115th Warmest Warmest since: 1996 2017
Ties: 1924, 1925, 1978
Jan 1995–Dec 1997
36-Month
50.9°F
(10.5°C)
51.6°F
(10.9°C)
-0.7°F
(-0.4°C)
20th Coolest Coolest since: 1981 1905
104th Warmest Warmest since: 1996 2017
Ties: 1925, 1963, 1970
Jan 1994–Dec 1997
48-Month
51.2°F
(10.7°C)
51.6°F
(10.9°C)
-0.4°F
(-0.2°C)
32nd Coolest Coolest since: 1996 1905
91st Warmest Warmest since: 1995 2001, 2018
Ties: 1898, 1901, 1915, 1971
Jan 1993–Dec 1997
60-Month
51.1°F
(10.6°C)
51.6°F
(10.9°C)
-0.5°F
(-0.3°C)
24th Coolest Coolest since: 1983 1905
98th Warmest Warmest since: 1996 2002
Ties: 1899, 1902, 1909, 1929, 1951, 1964, 1971, 1972

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2020, retrieved on January 19, 2020 from https://www.ncdc.noaa.gov/cag/