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 1946

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Warmest/Coolest
Since
Record
July 1946
1-Month
78.0°F
(25.6°C)
77.9°F
(25.5°C)
0.1°F
(0.1°C)
68th Coolest
Coolest since:
2014
61st Warmest
Warmest since:
2012
Ties: 1928, 1982
Jun–Jul 1946
2-Month
76.3°F
(24.6°C)
75.9°F
(24.4°C)
0.4°F
(0.2°C)
80th Coolest
Coolest since:
1904, 1927
49th Warmest
Warmest since:
1934
Ties: 1939, 1957, 1973, 1984
May–Jul 1946
3-Month
71.5°F
(21.9°C)
72.3°F
(22.4°C)
-0.8°F
(-0.5°C)
39th Coolest
Coolest since:
1924
90th Warmest
Warmest since:
1934
Ties: 1895, 1984
Apr–Jul 1946
4-Month
68.4°F
(20.2°C)
68.1°F
(20.1°C)
0.3°F
(0.1°C)
72nd Coolest
Coolest since:
1907
57th Warmest
Warmest since:
2012
Ties: 1963, 1970
Mar–Jul 1946
5-Month
65.8°F
(18.8°C)
63.4°F
(17.4°C)
2.4°F
(1.4°C)
118th Coolest
Coolest since:
1960
11th Warmest
Warmest since:
2012
Ties: 1936
Feb–Jul 1946
6-Month
61.5°F
(16.4°C)
58.6°F
(14.8°C)
2.9°F
(1.6°C)
122nd Coolest
Coolest since:
1947
7th Warmest
Warmest since:
2012
Ties: 1987
Jan–Jul 1946
7-Month
57.5°F
(14.2°C)
54.7°F
(12.6°C)
2.8°F
(1.6°C)
123rd Coolest
Coolest since:
1912
6th Warmest
Warmest since:
2012
Dec 1945–Jul 1946
8-Month
53.8°F
(12.1°C)
52.2°F
(11.2°C)
1.6°F
(0.9°C)
103rd Coolest
Coolest since:
1978
25th Warmest
Warmest since:
2012
Nov 1945–Jul 1946
9-Month
52.9°F
(11.6°C)
51.3°F
(10.7°C)
1.6°F
(0.9°C)
107th Coolest
Coolest since:
1904, 1912
21st Warmest
Warmest since:
2012
Ties: 1919, 1986, 1987
Oct 1945–Jul 1946
10-Month
53.2°F
(11.8°C)
52.0°F
(11.1°C)
1.2°F
(0.7°C)
96th Coolest
Coolest since:
1904, 1912
32nd Warmest
Warmest since:
2012
Ties: 1941, 2018
Sep 1945–Jul 1946
11-Month
54.7°F
(12.6°C)
53.5°F
(11.9°C)
1.2°F
(0.7°C)
100th Coolest
Coolest since:
1904
28th Warmest
Warmest since:
2012
Ties: 1957, 1992, 2004
Aug 1945–Jul 1946
12-Month
56.5°F
(13.6°C)
55.4°F
(13.0°C)
1.1°F
(0.6°C)
100th Coolest
Coolest since:
1904
28th Warmest
Warmest since:
2012
Ties: 1919, 1922, 1941, 1957, 1972, 1986, 1992, 2007
Feb 1945–Jul 1946
18-Month
57.2°F
(14.0°C)
56.5°F
(13.6°C)
0.7°F
(0.4°C)
89th Coolest
Coolest since:
1918, 1979
39th Warmest
Warmest since:
2012
Ties: 1998, 2010, 2021
Aug 1944–Jul 1946
24-Month
55.7°F
(13.2°C)
55.4°F
(13.0°C)
0.3°F
(0.2°C)
76th Coolest
Coolest since:
1979
51st Warmest
Warmest since:
2017
Ties: 1940, 2010
Aug 1943–Jul 1946
36-Month
55.6°F
(13.1°C)
55.4°F
(13.0°C)
0.2°F
(0.1°C)
73rd Coolest
Coolest since:
1979
53rd Warmest
Warmest since:
2018
Ties: 1898, 1911, 1916, 1938, 1966
Aug 1942–Jul 1946
48-Month
55.6°F
(13.1°C)
55.3°F
(12.9°C)
0.3°F
(0.2°C)
66th Coolest
Coolest since:
1980
59th Warmest
Warmest since:
2019
Ties: 1911, 1916, 1976
Aug 1941–Jul 1946
60-Month
55.9°F
(13.3°C)
55.3°F
(12.9°C)
0.6°F
(0.4°C)
81st Coolest
Coolest since:
1906
43rd Warmest
Warmest since:
2020
Ties: 1945, 1989, 1990, 1999

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