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 1970

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Warmest/Coolest
Since
Record
December 1970
1-Month
31.2°F
(-0.4°C)
28.3°F
(-2.1°C)
2.9°F
(1.7°C)
80th Coolest
Coolest since:
1983
49th Warmest
Warmest since:
2015
Nov–Dec 1970
2-Month
35.2°F
(1.8°C)
34.3°F
(1.3°C)
0.9°F
(0.5°C)
72nd Coolest
Coolest since:
2000
57th Warmest
Warmest since:
1931
Ties: 1921, 1936
Oct–Dec 1970
3-Month
41.6°F
(5.3°C)
41.0°F
(5.0°C)
0.6°F
(0.3°C)
76th Coolest
Coolest since:
1976
53rd Warmest
Warmest since:
1931
Sep–Dec 1970
4-Month
47.8°F
(8.8°C)
47.3°F
(8.5°C)
0.5°F
(0.3°C)
72nd Coolest
Coolest since:
1976
57th Warmest
Warmest since:
1931
Ties: 1978, 1986
Aug–Dec 1970
5-Month
52.9°F
(11.6°C)
52.5°F
(11.4°C)
0.4°F
(0.2°C)
69th Coolest
Coolest since:
1976
60th Warmest
Warmest since:
1931
Ties: 1905, 1959, 2018
Jul–Dec 1970
6-Month
56.6°F
(13.7°C)
56.5°F
(13.6°C)
0.1°F
(0.1°C)
63rd Coolest
Coolest since:
1976
66th Warmest
Warmest since:
1931
Ties: 1963, 2018
Jun–Dec 1970
7-Month
58.6°F
(14.8°C)
58.6°F
(14.8°C)
0.0°F
(0.0°C)
58th Coolest
Coolest since:
1976
71st Warmest
Warmest since:
1931
May–Dec 1970
8-Month
59.4°F
(15.2°C)
59.1°F
(15.1°C)
0.3°F
(0.1°C)
70th Coolest
Coolest since:
1917
59th Warmest
Warmest since:
1931
Ties: 1908, 1920, 1957, 1963, 1979, 1986
Apr–Dec 1970
9-Month
58.6°F
(14.8°C)
58.2°F
(14.6°C)
0.4°F
(0.2°C)
71st Coolest
Coolest since:
1917
58th Warmest
Warmest since:
1931
Ties: 1908, 1962
Mar–Dec 1970
10-Month
56.4°F
(13.6°C)
56.3°F
(13.5°C)
0.1°F
(0.1°C)
69th Coolest
Coolest since:
1917
60th Warmest
Warmest since:
2012
Ties: 1899, 1940, 1952, 1965
Feb–Dec 1970
11-Month
53.8°F
(12.1°C)
53.7°F
(12.1°C)
0.1°F
(0.0°C)
70th Coolest
Coolest since:
1917
59th Warmest
Warmest since:
2012
Ties: 1897, 1900, 1914, 1940, 1942, 1983
Jan–Dec 1970
12-Month
50.7°F
(10.4°C)
51.2°F
(10.7°C)
-0.5°F
(-0.3°C)
43rd Coolest
Coolest since:
1917
86th Warmest
Warmest since:
2012
Ties: 1901, 1915, 1968
Jul 1969–Dec 1970
18-Month
52.2°F
(11.2°C)
53.0°F
(11.7°C)
-0.8°F
(-0.5°C)
27th Coolest
Coolest since:
1904
101st Warmest
Warmest since:
2012
Ties: 1902, 1943, 1958, 1985
Jan 1969–Dec 1970
24-Month
50.3°F
(10.2°C)
51.2°F
(10.7°C)
-0.9°F
(-0.5°C)
17th Coolest
Coolest since:
1979
111th Warmest
Warmest since:
2017
Ties: 1968, 1969, 2009
Jan 1968–Dec 1970
36-Month
50.4°F
(10.2°C)
51.2°F
(10.7°C)
-0.8°F
(-0.5°C)
19th Coolest
Coolest since:
1905
108th Warmest
Warmest since:
2017
Ties: 2015
Jan 1967–Dec 1970
48-Month
50.3°F
(10.2°C)
51.2°F
(10.7°C)
-0.9°F
(-0.5°C)
10th Coolest
Coolest since:
1905
116th Warmest
Warmest since:
1934
Ties: 1917, 1961, 1996
Jan 1966–Dec 1970
60-Month
50.3°F
(10.2°C)
51.2°F
(10.7°C)
-0.9°F
(-0.5°C)
8th Coolest
Coolest since:
1905
117th Warmest
Warmest since:
1934
Ties: 1981, 1997

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