Statewide Rankings

Statewide 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

Average Temperature Rankings, October 2011

View Period (Months):
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  • Record Coolest
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  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
October 2011
1-Month
55.2°F
(12.9°C)
54.6°F
(12.6°C)
0.6°F
(0.3°C)
76th Coolest
Coolest since:
1925
53rd Warmest
Warmest since:
1963
Ties: 1986
Sep–Oct 2011
2-Month
59.4°F
(15.2°C)
60.4°F
(15.8°C)
-1.0°F
(-0.6°C)
39th Coolest
Coolest since:
1917
90th Warmest
Warmest since:
1897, 2016
Ties: 1903, 1951, 1995
Aug–Oct 2011
3-Month
64.5°F
(18.1°C)
64.7°F
(18.2°C)
-0.2°F
(-0.1°C)
55th Coolest
Coolest since:
1917
74th Warmest
Warmest since:
1947
Ties: 1918, 1946, 1948, 1985
Jul–Oct 2011
4-Month
68.4°F
(20.2°C)
67.5°F
(19.7°C)
0.9°F
(0.5°C)
92nd Coolest
Coolest since:
1917
37th Warmest
Warmest since:
1936
Ties: 1913, 1935, 1956, 2017
Jun–Oct 2011
5-Month
69.3°F
(20.7°C)
68.3°F
(20.2°C)
1.0°F
(0.5°C)
95th Coolest
Coolest since:
1917
34th Warmest
Warmest since:
1936
Ties: 1940, 2019
May–Oct 2011
6-Month
68.1°F
(20.1°C)
67.2°F
(19.6°C)
0.9°F
(0.5°C)
91st Coolest
Coolest since:
1917
38th Warmest
Warmest since:
1936
Ties: 1897, 1899, 1930, 1971, 1977, 1980, 1986, 2022
Apr–Oct 2011
7-Month
65.9°F
(18.8°C)
64.9°F
(18.3°C)
1.0°F
(0.5°C)
94th Coolest
Coolest since:
1917
35th Warmest
Warmest since:
2010
Ties: 1899, 1919, 1947, 2002, 2019
Mar–Oct 2011
8-Month
62.9°F
(17.2°C)
61.8°F
(16.6°C)
1.1°F
(0.6°C)
99th Coolest
Coolest since:
1917
30th Warmest
Warmest since:
2012
Ties: 1931, 1959
Feb–Oct 2011
9-Month
59.3°F
(15.2°C)
58.2°F
(14.6°C)
1.1°F
(0.6°C)
100th Coolest
Coolest since:
1917
29th Warmest
Warmest since:
2012
Ties: 1919, 1933, 1983, 2002
Jan–Oct 2011
10-Month
55.6°F
(13.1°C)
54.9°F
(12.7°C)
0.7°F
(0.4°C)
85th Coolest
Coolest since:
1904
44th Warmest
Warmest since:
2012
Dec 2010–Oct 2011
11-Month
52.7°F
(11.5°C)
52.6°F
(11.4°C)
0.1°F
(0.1°C)
66th Coolest
Coolest since:
1904
62nd Warmest
Warmest since:
2012
Ties: 1898, 1927, 1976
Nov 2010–Oct 2011
12-Month
52.0°F
(11.1°C)
51.6°F
(10.9°C)
0.4°F
(0.2°C)
79th Coolest
Coolest since:
1904
49th Warmest
Warmest since:
2012
Ties: 1908, 1930, 1935, 1990
May 2010–Oct 2011
18-Month
57.8°F
(14.3°C)
56.8°F
(13.8°C)
1.0°F
(0.5°C)
97th Coolest
Coolest since:
1904
31st Warmest
Warmest since:
2012
Ties: 1941, 1988, 2013, 2018, 2020
Nov 2009–Oct 2011
24-Month
52.8°F
(11.6°C)
51.6°F
(10.9°C)
1.2°F
(0.7°C)
104th Coolest
Coolest since:
1905
23rd Warmest
Warmest since:
2017
Ties: 1931, 2003, 2008
Nov 2008–Oct 2011
36-Month
52.1°F
(11.2°C)
51.6°F
(10.9°C)
0.5°F
(0.3°C)
84th Coolest
Coolest since:
1904, 1979
42nd Warmest
Warmest since:
2018
Ties: 1931, 1990, 2009
Nov 2007–Oct 2011
48-Month
51.9°F
(11.1°C)
51.6°F
(10.9°C)
0.3°F
(0.2°C)
72nd Coolest
Coolest since:
1905
53rd Warmest
Warmest since:
2019
Ties: 1937, 1938, 1947, 1976
Nov 2006–Oct 2011
60-Month
52.4°F
(11.3°C)
51.6°F
(10.9°C)
0.8°F
(0.4°C)
92nd Coolest
Coolest since:
1905, 1906
32nd Warmest
Warmest since:
2002, 2020
Ties: 1955, 1990

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