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 1941

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
August 1941
1-Month
79.0°F
(26.1°C)
76.0°F
(24.4°C)
3.0°F
(1.7°C)
112th Coolest
Coolest since:
1915
17th Warmest
Warmest since:
1936
Ties: 1909
Jul–Aug 1941
2-Month
79.4°F
(26.3°C)
77.0°F
(25.0°C)
2.4°F
(1.3°C)
116th Coolest
Coolest since:
1967
13th Warmest
Warmest since:
1936
Ties: 1916, 1955
Jun–Aug 1941
3-Month
78.0°F
(25.6°C)
75.9°F
(24.4°C)
2.1°F
(1.2°C)
112th Coolest
Coolest since:
1915, 1927
17th Warmest
Warmest since:
1936
May–Aug 1941
4-Month
75.6°F
(24.2°C)
73.2°F
(22.9°C)
2.4°F
(1.3°C)
119th Coolest
Coolest since:
1967
10th Warmest
Warmest since:
1936
Ties: 1980, 1991, 2011
Apr–Aug 1941
5-Month
72.3°F
(22.4°C)
69.6°F
(20.9°C)
2.7°F
(1.5°C)
123rd Coolest
Coolest since:
1907
6th Warmest
Warmest since:
2010
Ties: 1991, 2011
Mar–Aug 1941
6-Month
66.8°F
(19.3°C)
65.4°F
(18.6°C)
1.4°F
(0.7°C)
105th Coolest
Coolest since:
1904
24th Warmest
Warmest since:
2012
Ties: 1946
Feb–Aug 1941
7-Month
61.8°F
(16.6°C)
61.1°F
(16.2°C)
0.7°F
(0.4°C)
86th Coolest
Coolest since:
1904
43rd Warmest
Warmest since:
2012
Ties: 1933, 1943
Jan–Aug 1941
8-Month
58.3°F
(14.6°C)
57.3°F
(14.1°C)
1.0°F
(0.5°C)
94th Coolest
Coolest since:
1912
35th Warmest
Warmest since:
2012
Ties: 1919, 1939, 2001, 2018
Dec 1940–Aug 1941
9-Month
56.2°F
(13.4°C)
54.8°F
(12.7°C)
1.4°F
(0.7°C)
103rd Coolest
Coolest since:
1904
25th Warmest
Warmest since:
2012
Ties: 1914, 2010
Nov 1940–Aug 1941
10-Month
54.9°F
(12.7°C)
53.8°F
(12.1°C)
1.1°F
(0.6°C)
99th Coolest
Coolest since:
1904
29th Warmest
Warmest since:
2012
Ties: 1986, 2004, 2011, 2021
Oct 1940–Aug 1941
11-Month
55.6°F
(13.1°C)
54.2°F
(12.3°C)
1.4°F
(0.8°C)
107th Coolest
Coolest since:
1904
21st Warmest
Warmest since:
2012
Ties: 1919
Sep 1940–Aug 1941
12-Month
56.7°F
(13.7°C)
55.4°F
(13.0°C)
1.3°F
(0.7°C)
106th Coolest
Coolest since:
1904
22nd Warmest
Warmest since:
2012
Ties: 1914, 1995
Mar 1940–Aug 1941
18-Month
59.2°F
(15.1°C)
58.7°F
(14.8°C)
0.5°F
(0.3°C)
79th Coolest
Coolest since:
1904
49th Warmest
Warmest since:
2012
Ties: 1933, 1946, 1947, 1949, 2004
Sep 1939–Aug 1941
24-Month
55.5°F
(13.1°C)
55.4°F
(13.0°C)
0.1°F
(0.1°C)
70th Coolest
Coolest since:
1979
57th Warmest
Warmest since:
2017
Ties: 1898, 1926, 1940, 1946, 1950, 1993, 1995, 2004
Sep 1938–Aug 1941
36-Month
55.9°F
(13.3°C)
55.4°F
(13.0°C)
0.5°F
(0.3°C)
85th Coolest
Coolest since:
1979
41st Warmest
Warmest since:
2018
Ties: 1944, 1989, 2010, 2016
Sep 1937–Aug 1941
48-Month
56.0°F
(13.3°C)
55.3°F
(12.9°C)
0.7°F
(0.4°C)
88th Coolest
Coolest since:
1980
37th Warmest
Warmest since:
2019
Ties: 1939, 1989, 1991, 1992, 1993, 2015
Sep 1936–Aug 1941
60-Month
55.9°F
(13.3°C)
55.3°F
(12.9°C)
0.6°F
(0.4°C)
82nd Coolest
Coolest since:
1906
42nd Warmest
Warmest since:
2020
Ties: 1945, 1954, 1989, 1990, 1995, 1999

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