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 8. Southwest

Average Temperature Rankings, June 2009

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
June 2009
1-Month
76.4°F
(24.7°C)
73.9°F
(23.3°C)
2.5°F
(1.4°C)
108th Coolest
Coolest since:
1903
21st Warmest
Warmest since:
1952
Ties: 1922, 1943, 1986
May–Jun 2009
2-Month
70.9°F
(21.6°C)
69.5°F
(20.8°C)
1.4°F
(0.8°C)
94th Coolest
Coolest since:
1907
35th Warmest
Warmest since:
2018
Ties: 1949, 1975, 1996, 2011
Apr–Jun 2009
3-Month
65.7°F
(18.7°C)
64.8°F
(18.2°C)
0.9°F
(0.5°C)
82nd Coolest
Coolest since:
1907
47th Warmest
Warmest since:
2010
Ties: 1895, 1970, 1988
Mar–Jun 2009
4-Month
61.4°F
(16.3°C)
59.7°F
(15.4°C)
1.7°F
(0.9°C)
103rd Coolest
Coolest since:
1960
26th Warmest
Warmest since:
2012
Ties: 1985
Feb–Jun 2009
5-Month
56.8°F
(13.8°C)
54.8°F
(12.7°C)
2.0°F
(1.1°C)
110th Coolest
Coolest since:
1912, 1960, 1978
19th Warmest
Warmest since:
2012
Ties: 2011
Jan–Jun 2009
6-Month
52.0°F
(11.1°C)
50.8°F
(10.4°C)
1.2°F
(0.7°C)
94th Coolest
Coolest since:
1912, 1978
35th Warmest
Warmest since:
2012
Ties: 1922, 1934, 1955, 2011, 2018
Dec 2008–Jun 2009
7-Month
49.4°F
(9.7°C)
48.5°F
(9.2°C)
0.9°F
(0.5°C)
79th Coolest
Coolest since:
1978
49th Warmest
Warmest since:
2012
Ties: 1950
Nov 2008–Jun 2009
8-Month
48.7°F
(9.3°C)
48.0°F
(8.9°C)
0.7°F
(0.4°C)
77th Coolest
Coolest since:
1912
51st Warmest
Warmest since:
2012
Ties: 1988, 1990
Oct 2008–Jun 2009
9-Month
49.6°F
(9.8°C)
49.1°F
(9.5°C)
0.5°F
(0.3°C)
76th Coolest
Coolest since:
1912, 1978
52nd Warmest
Warmest since:
2012
Ties: 1909, 2008, 2013, 2019
Sep 2008–Jun 2009
10-Month
51.6°F
(10.9°C)
51.1°F
(10.6°C)
0.5°F
(0.3°C)
78th Coolest
Coolest since:
1978
50th Warmest
Warmest since:
2012
Ties: 1896, 1923, 1933
Aug 2008–Jun 2009
11-Month
53.7°F
(12.1°C)
53.3°F
(11.8°C)
0.4°F
(0.3°C)
69th Coolest
Coolest since:
1904, 1978
59th Warmest
Warmest since:
2012
Ties: 2013
Jul 2008–Jun 2009
12-Month
55.6°F
(13.1°C)
55.3°F
(12.9°C)
0.3°F
(0.2°C)
67th Coolest
Coolest since:
1904, 1912, 1918, 1978
61st Warmest
Warmest since:
2012
Ties: 1896, 1927, 1967, 1988, 1990
Jan 2008–Jun 2009
18-Month
53.9°F
(12.2°C)
53.9°F
(12.2°C)
0.0°F
(0.0°C)
60th Coolest
Coolest since:
1979
68th Warmest
Warmest since:
2017
Ties: 1901, 1915, 1981
Jul 2007–Jun 2009
24-Month
56.1°F
(13.4°C)
55.4°F
(13.0°C)
0.7°F
(0.4°C)
91st Coolest
Coolest since:
1978, 1979
36th Warmest
Warmest since:
2017
Ties: 1957
Jul 2006–Jun 2009
36-Month
56.3°F
(13.5°C)
55.4°F
(13.0°C)
0.9°F
(0.5°C)
98th Coolest
Coolest since:
1979
28th Warmest
Warmest since:
2018
Jul 2005–Jun 2009
48-Month
56.7°F
(13.7°C)
55.4°F
(13.0°C)
1.3°F
(0.7°C)
113th Coolest
Coolest since:
1980
12th Warmest
Warmest since:
2019
Ties: 1955, 1956
Jul 2004–Jun 2009
60-Month
56.7°F
(13.7°C)
55.4°F
(13.0°C)
1.3°F
(0.7°C)
117th Coolest
Coolest since:
1980
7th Warmest
Warmest since:
2020
Ties: 1934, 1957, 2006, 2012, 2013

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