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 2019

View Period (Months):
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
August 2019
1-Month
76.4°F
(24.7°C)
76.0°F
(24.4°C)
0.4°F
(0.3°C)
77th Coolest
Coolest since:
1915
52nd Warmest
Warmest since:
1936
Ties: 1940, 1968, 1984
Jul–Aug 2019
2-Month
77.6°F
(25.3°C)
77.0°F
(25.0°C)
0.6°F
(0.3°C)
87th Coolest
Coolest since:
1967
42nd Warmest
Warmest since:
1936
Ties: 1977, 1991, 1999
Jun–Aug 2019
3-Month
76.1°F
(24.5°C)
75.9°F
(24.4°C)
0.2°F
(0.1°C)
69th Coolest
Coolest since:
1915, 1927
60th Warmest
Warmest since:
1936
Ties: 1956, 2001, 2015
May–Aug 2019
4-Month
73.9°F
(23.3°C)
73.2°F
(22.9°C)
0.7°F
(0.4°C)
82nd Coolest
Coolest since:
1967
47th Warmest
Warmest since:
1936
Ties: 1916, 1949, 1955, 2015
Apr–Aug 2019
5-Month
70.5°F
(21.4°C)
69.6°F
(20.9°C)
0.9°F
(0.5°C)
83rd Coolest
Coolest since:
1907
46th Warmest
Warmest since:
2010
Ties: 1918
Mar–Aug 2019
6-Month
65.8°F
(18.8°C)
65.5°F
(18.6°C)
0.3°F
(0.2°C)
73rd Coolest
Coolest since:
1904
56th Warmest
Warmest since:
2012
Ties: 1919, 1932, 1957, 1981
Feb–Aug 2019
7-Month
61.7°F
(16.5°C)
61.1°F
(16.2°C)
0.6°F
(0.3°C)
83rd Coolest
Coolest since:
1904
46th Warmest
Warmest since:
2012
Ties: 1956, 1981, 1988
Jan–Aug 2019
8-Month
58.1°F
(14.5°C)
57.4°F
(14.1°C)
0.7°F
(0.4°C)
86th Coolest
Coolest since:
1912
43rd Warmest
Warmest since:
2012
Ties: 1931, 1992
Dec 2018–Aug 2019
9-Month
56.0°F
(13.3°C)
54.8°F
(12.7°C)
1.2°F
(0.6°C)
96th Coolest
Coolest since:
1904
32nd Warmest
Warmest since:
2012
Ties: 1983
Nov 2018–Aug 2019
10-Month
54.4°F
(12.4°C)
53.8°F
(12.1°C)
0.6°F
(0.3°C)
78th Coolest
Coolest since:
1904
50th Warmest
Warmest since:
2012
Ties: 1911, 1913, 1931, 1942
Oct 2018–Aug 2019
11-Month
54.7°F
(12.6°C)
54.1°F
(12.3°C)
0.6°F
(0.3°C)
77th Coolest
Coolest since:
1904
51st Warmest
Warmest since:
2012
Ties: 1898, 1909, 1913, 1930
Sep 2018–Aug 2019
12-Month
56.3°F
(13.5°C)
55.4°F
(13.0°C)
0.9°F
(0.5°C)
92nd Coolest
Coolest since:
1904
36th Warmest
Warmest since:
2012
Ties: 1898, 1901
Mar 2018–Aug 2019
18-Month
59.7°F
(15.4°C)
58.7°F
(14.8°C)
1.0°F
(0.6°C)
95th Coolest
Coolest since:
1904
33rd Warmest
Warmest since:
2012
Sep 2017–Aug 2019
24-Month
56.4°F
(13.6°C)
55.3°F
(12.9°C)
1.1°F
(0.7°C)
100th Coolest
Coolest since:
1979
27th Warmest
Warmest since:
2017
Ties: 1953, 1988, 2008
Sep 2016–Aug 2019
36-Month
57.2°F
(14.0°C)
55.3°F
(12.9°C)
1.9°F
(1.1°C)
119th Coolest
Coolest since:
1979
7th Warmest
Warmest since:
2018
Ties: 2013
Sep 2015–Aug 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
Sep 2014–Aug 2019
60-Month
57.1°F
(13.9°C)
55.4°F
(13.0°C)
1.7°F
(0.9°C)
122nd Coolest
Coolest since:
1906
2nd Warmest
Warmest to Date
2020

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