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, July 2019

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
July 2019
1-Month
78.7°F
(25.9°C)
77.9°F
(25.5°C)
0.8°F
(0.4°C)
89th Coolest
Coolest since:
2014
40th Warmest
Warmest since:
2012
Ties: 2006
Jun–Jul 2019
2-Month
76.0°F
(24.4°C)
75.9°F
(24.4°C)
0.1°F
(0.0°C)
70th Coolest
Coolest since:
1904, 1927
59th Warmest
Warmest since:
1934
Ties: 1971
May–Jul 2019
3-Month
73.1°F
(22.8°C)
72.3°F
(22.4°C)
0.8°F
(0.4°C)
84th Coolest
Coolest since:
1924
45th Warmest
Warmest since:
1934
Apr–Jul 2019
4-Month
69.1°F
(20.6°C)
68.1°F
(20.1°C)
1.0°F
(0.5°C)
92nd Coolest
Coolest since:
1907
37th Warmest
Warmest since:
2012
Ties: 1962, 2005
Mar–Jul 2019
5-Month
63.7°F
(17.6°C)
63.4°F
(17.4°C)
0.3°F
(0.2°C)
69th Coolest
Coolest since:
1960
60th Warmest
Warmest since:
2012
Ties: 1929, 1948, 1967
Feb–Jul 2019
6-Month
59.3°F
(15.2°C)
58.6°F
(14.8°C)
0.7°F
(0.4°C)
81st Coolest
Coolest since:
1947
48th Warmest
Warmest since:
2012
Ties: 1927
Jan–Jul 2019
7-Month
55.5°F
(13.1°C)
54.7°F
(12.6°C)
0.8°F
(0.5°C)
83rd Coolest
Coolest since:
1912
46th Warmest
Warmest since:
2012
Ties: 2001
Dec 2018–Jul 2019
8-Month
53.4°F
(11.9°C)
52.2°F
(11.2°C)
1.2°F
(0.7°C)
95th Coolest
Coolest since:
1978
33rd Warmest
Warmest since:
2012
Ties: 1930, 1939, 1941, 1949
Nov 2018–Jul 2019
9-Month
51.9°F
(11.1°C)
51.3°F
(10.7°C)
0.6°F
(0.4°C)
76th Coolest
Coolest since:
1904, 1912
52nd Warmest
Warmest since:
2012
Ties: 1930, 1981, 1990
Oct 2018–Jul 2019
10-Month
52.6°F
(11.4°C)
52.0°F
(11.1°C)
0.6°F
(0.3°C)
80th Coolest
Coolest since:
1904, 1912
48th Warmest
Warmest since:
2012
Ties: 1898, 1901, 1983, 1990
Sep 2018–Jul 2019
11-Month
54.4°F
(12.4°C)
53.5°F
(11.9°C)
0.9°F
(0.5°C)
90th Coolest
Coolest since:
1904
38th Warmest
Warmest since:
2012
Ties: 1901, 1911, 2010
Aug 2018–Jul 2019
12-Month
56.3°F
(13.5°C)
55.4°F
(13.0°C)
0.9°F
(0.5°C)
88th Coolest
Coolest since:
1904
40th Warmest
Warmest since:
2012
Feb 2018–Jul 2019
18-Month
57.6°F
(14.2°C)
56.5°F
(13.6°C)
1.1°F
(0.6°C)
102nd Coolest
Coolest since:
1918, 1979
26th Warmest
Warmest since:
2012
Ties: 1919, 1942, 1988, 2008
Aug 2017–Jul 2019
24-Month
56.3°F
(13.5°C)
55.4°F
(13.0°C)
0.9°F
(0.5°C)
99th Coolest
Coolest since:
1979
28th Warmest
Warmest since:
2017
Ties: 2011
Aug 2016–Jul 2019
36-Month
57.3°F
(14.1°C)
55.4°F
(13.0°C)
1.9°F
(1.1°C)
121st Coolest
Coolest since:
1979
5th Warmest
Warmest since:
2018
Ties: 2000, 2013
Aug 2015–Jul 2019
48-Month
57.6°F
(14.2°C)
55.3°F
(12.9°C)
2.3°F
(1.3°C)
124th Coolest
Coolest since:
1980
1st Warmest
Warmest to Date
2019
Aug 2014–Jul 2019
60-Month
57.1°F
(13.9°C)
55.3°F
(12.9°C)
1.8°F
(1.0°C)
122nd Coolest
Coolest since:
1906
2nd Warmest
Warmest to Date
2020

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