Divisional Rankings

Divisional Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Illinois, Climate Division 3. West

Average Temperature Rankings, December 2019

View Period (Months):
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  • Record Coolest
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
December 2019
1-Month
35.0°F
(1.7°C)
28.3°F
(-2.1°C)
6.7°F
(3.8°C)
118th Coolest
Coolest since:
1983
10th Warmest
Warmest since:
2015
Ties: 1959, 2001
Nov–Dec 2019
2-Month
35.4°F
(1.9°C)
34.2°F
(1.2°C)
1.2°F
(0.7°C)
77th Coolest
Coolest since:
2000
51st Warmest
Warmest since:
1931
Ties: 1980
Oct–Dec 2019
3-Month
40.8°F
(4.9°C)
41.0°F
(5.0°C)
-0.2°F
(-0.1°C)
56th Coolest
Coolest since:
1976
72nd Warmest
Warmest since:
1931
Ties: 1904, 1907, 1986
Sep–Dec 2019
4-Month
48.4°F
(9.1°C)
47.2°F
(8.4°C)
1.2°F
(0.7°C)
84th Coolest
Coolest since:
1976
44th Warmest
Warmest since:
1931
Ties: 1949, 1973
Aug–Dec 2019
5-Month
53.2°F
(11.8°C)
52.5°F
(11.4°C)
0.7°F
(0.4°C)
78th Coolest
Coolest since:
1976
50th Warmest
Warmest since:
1931
Ties: 1897, 1980, 2010, 2020
Jul–Dec 2019
6-Month
57.4°F
(14.1°C)
56.5°F
(13.6°C)
0.9°F
(0.5°C)
88th Coolest
Coolest since:
1976
40th Warmest
Warmest since:
1931
Ties: 1948, 1975
Jun–Dec 2019
7-Month
59.3°F
(15.2°C)
58.6°F
(14.8°C)
0.7°F
(0.4°C)
81st Coolest
Coolest since:
1976
47th Warmest
Warmest since:
1931
Ties: 1897, 1948, 2018
May–Dec 2019
8-Month
59.6°F
(15.3°C)
59.1°F
(15.1°C)
0.5°F
(0.2°C)
79th Coolest
Coolest since:
1917
49th Warmest
Warmest since:
1931
Ties: 1948, 1962, 1982, 1984, 2020
Apr–Dec 2019
9-Month
58.7°F
(14.8°C)
58.2°F
(14.6°C)
0.5°F
(0.2°C)
74th Coolest
Coolest since:
1917
54th Warmest
Warmest since:
1931
Ties: 1923, 1940, 1952
Mar–Dec 2019
10-Month
56.5°F
(13.6°C)
56.3°F
(13.5°C)
0.2°F
(0.1°C)
72nd Coolest
Coolest since:
1917
56th Warmest
Warmest since:
2012
Ties: 1942, 1957
Feb–Dec 2019
11-Month
53.7°F
(12.1°C)
53.7°F
(12.1°C)
0.0°F
(0.0°C)
57th Coolest
Coolest since:
1917
71st Warmest
Warmest since:
2012
Ties: 1919, 1925, 1928, 1944, 1965, 2003
Jan–Dec 2019
12-Month
51.2°F
(10.7°C)
51.2°F
(10.7°C)
0.0°F
(0.0°C)
58th Coolest
Coolest since:
1917
70th Warmest
Warmest since:
2012
Ties: 1897, 1918, 1925, 1959
Jul 2018–Dec 2019
18-Month
53.0°F
(11.7°C)
53.0°F
(11.7°C)
0.0°F
(0.0°C)
66th Coolest
Coolest since:
1904
61st Warmest
Warmest since:
2012
Ties: 1965, 1973, 1995, 2003
Jan 2018–Dec 2019
24-Month
51.5°F
(10.8°C)
51.3°F
(10.7°C)
0.2°F
(0.1°C)
79th Coolest
Coolest since:
1979
48th Warmest
Warmest since:
2017
Ties: 1928, 1964, 1984, 1990
Jan 2017–Dec 2019
36-Month
52.2°F
(11.2°C)
51.2°F
(10.7°C)
1.0°F
(0.5°C)
99th Coolest
Coolest since:
1905
27th Warmest
Warmest since:
2017
Ties: 2008, 2021
Jan 2016–Dec 2019
48-Month
52.7°F
(11.5°C)
51.2°F
(10.7°C)
1.5°F
(0.8°C)
119th Coolest
Coolest since:
1905
6th Warmest
Warmest since:
1934
Ties: 1941, 1955, 1956
Jan 2015–Dec 2019
60-Month
52.6°F
(11.4°C)
51.2°F
(10.7°C)
1.4°F
(0.7°C)
120th Coolest
Coolest since:
1905
4th Warmest
Warmest since:
1934
Ties: 1956, 2020

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