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, August 2003

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
August 2003
1-Month
77.9°F
(25.5°C)
76.0°F
(24.4°C)
1.9°F
(1.1°C)
103rd Coolest
Coolest since:
1915
26th Warmest
Warmest since:
1936
Ties: 1934, 2011, 2016
Jul–Aug 2003
2-Month
77.7°F
(25.4°C)
77.0°F
(25.0°C)
0.7°F
(0.4°C)
89th Coolest
Coolest since:
1967
40th Warmest
Warmest since:
1936
Ties: 1909
Jun–Aug 2003
3-Month
74.9°F
(23.8°C)
75.9°F
(24.4°C)
-1.0°F
(-0.6°C)
31st Coolest
Coolest since:
1915, 1927
98th Warmest
Warmest since:
1936
Ties: 1946, 1965, 1989
May–Aug 2003
4-Month
72.3°F
(22.4°C)
73.2°F
(22.9°C)
-0.9°F
(-0.5°C)
34th Coolest
Coolest since:
1967
95th Warmest
Warmest since:
1936
Ties: 1966, 2009
Apr–Aug 2003
5-Month
69.3°F
(20.7°C)
69.7°F
(20.9°C)
-0.4°F
(-0.2°C)
46th Coolest
Coolest since:
1907
83rd Warmest
Warmest since:
2010
Ties: 1909, 1960, 1983, 2020
Mar–Aug 2003
6-Month
65.5°F
(18.6°C)
65.5°F
(18.6°C)
0.0°F
(0.0°C)
60th Coolest
Coolest since:
1904
69th Warmest
Warmest since:
2012
Ties: 1949, 2009
Feb–Aug 2003
7-Month
60.7°F
(15.9°C)
61.1°F
(16.2°C)
-0.4°F
(-0.3°C)
51st Coolest
Coolest since:
1904
78th Warmest
Warmest since:
2012
Ties: 1937
Jan–Aug 2003
8-Month
56.5°F
(13.6°C)
57.3°F
(14.1°C)
-0.8°F
(-0.5°C)
34th Coolest
Coolest since:
1912
95th Warmest
Warmest since:
2012
Ties: 1897, 1910, 1950, 1994
Dec 2002–Aug 2003
9-Month
54.2°F
(12.3°C)
54.8°F
(12.7°C)
-0.6°F
(-0.4°C)
33rd Coolest
Coolest since:
1904
95th Warmest
Warmest since:
2012
Ties: 1903, 1926, 1997
Nov 2002–Aug 2003
10-Month
53.1°F
(11.7°C)
53.8°F
(12.1°C)
-0.7°F
(-0.4°C)
33rd Coolest
Coolest since:
1904
95th Warmest
Warmest since:
2012
Ties: 1910, 1926, 1945, 1948, 1994, 2001
Oct 2002–Aug 2003
11-Month
53.3°F
(11.8°C)
54.1°F
(12.3°C)
-0.8°F
(-0.5°C)
32nd Coolest
Coolest since:
1904
96th Warmest
Warmest since:
2012
Ties: 1910, 1994
Sep 2002–Aug 2003
12-Month
54.9°F
(12.7°C)
55.4°F
(13.0°C)
-0.5°F
(-0.3°C)
41st Coolest
Coolest since:
1904
87th Warmest
Warmest since:
2012
Ties: 1950, 1989
Mar 2002–Aug 2003
18-Month
58.7°F
(14.8°C)
58.7°F
(14.8°C)
0.0°F
(0.0°C)
58th Coolest
Coolest since:
1904
70th Warmest
Warmest since:
2012
Ties: 1903, 1952
Sep 2001–Aug 2003
24-Month
56.1°F
(13.4°C)
55.3°F
(12.9°C)
0.8°F
(0.5°C)
91st Coolest
Coolest since:
1979
36th Warmest
Warmest since:
2017
Ties: 1956
Sep 2000–Aug 2003
36-Month
55.8°F
(13.2°C)
55.4°F
(13.0°C)
0.4°F
(0.2°C)
80th Coolest
Coolest since:
1979
46th Warmest
Warmest since:
2018
Ties: 1940, 1942
Sep 1999–Aug 2003
48-Month
56.2°F
(13.4°C)
55.3°F
(12.9°C)
0.9°F
(0.5°C)
100th Coolest
Coolest since:
1980
25th Warmest
Warmest since:
2019
Ties: 1922, 1936, 2010
Sep 1998–Aug 2003
60-Month
56.5°F
(13.6°C)
55.3°F
(12.9°C)
1.2°F
(0.7°C)
106th Coolest
Coolest since:
1906
18th Warmest
Warmest since:
2020
Ties: 2010, 2016

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