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 7. East Southeast

Average Temperature Rankings, September 1990

View Period (Months):
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1990
1-Month
68.8°F
(20.4°C)
67.4°F
(19.7°C)
1.4°F
(0.7°C)
81st Coolest
Coolest since:
1918
48th Warmest
Warmest since:
1925
Aug–Sep 1990
2-Month
70.8°F
(21.6°C)
70.9°F
(21.6°C)
-0.1°F
(0.0°C)
68th Coolest
Coolest since:
1967
61st Warmest
Warmest since:
1936
Ties: 1909, 1940, 1968
Jul–Sep 1990
3-Month
72.3°F
(22.4°C)
72.7°F
(22.6°C)
-0.4°F
(-0.2°C)
54th Coolest
Coolest since:
1967
75th Warmest
Warmest since:
1936
Ties: 1964
Jun–Sep 1990
4-Month
72.4°F
(22.4°C)
72.6°F
(22.6°C)
-0.2°F
(-0.2°C)
53rd Coolest
Coolest since:
1967
76th Warmest
Warmest since:
1936
Ties: 1905, 1935, 1949, 1957, 1993
May–Sep 1990
5-Month
70.0°F
(21.1°C)
70.7°F
(21.5°C)
-0.7°F
(-0.4°C)
37th Coolest
Coolest since:
1924
92nd Warmest
Warmest since:
1936
Ties: 1902, 1923
Apr–Sep 1990
6-Month
66.9°F
(19.4°C)
67.7°F
(19.8°C)
-0.8°F
(-0.4°C)
34th Coolest
Coolest since:
1907
95th Warmest
Warmest since:
2010
Ties: 1984
Mar–Sep 1990
7-Month
64.0°F
(17.8°C)
64.0°F
(17.8°C)
0.0°F
(0.0°C)
60th Coolest
Coolest since:
1924
69th Warmest
Warmest since:
2012
Ties: 1945
Feb–Sep 1990
8-Month
60.8°F
(16.0°C)
59.9°F
(15.5°C)
0.9°F
(0.5°C)
92nd Coolest
Coolest since:
1904, 1924
37th Warmest
Warmest since:
2012
Ties: 2001, 2019
Jan–Sep 1990
9-Month
58.3°F
(14.6°C)
56.3°F
(13.5°C)
2.0°F
(1.1°C)
112th Coolest
Coolest since:
1979
17th Warmest
Warmest since:
2012
Dec 1989–Sep 1990
10-Month
54.4°F
(12.4°C)
53.9°F
(12.2°C)
0.5°F
(0.2°C)
77th Coolest
Coolest since:
1904
51st Warmest
Warmest since:
2012
Ties: 1898, 1946, 1976
Nov 1989–Sep 1990
11-Month
53.4°F
(11.9°C)
52.9°F
(11.6°C)
0.5°F
(0.3°C)
81st Coolest
Coolest since:
1904
47th Warmest
Warmest since:
2012
Ties: 1930, 1935, 1946, 1972, 2011
Oct 1989–Sep 1990
12-Month
53.7°F
(12.1°C)
53.1°F
(11.7°C)
0.6°F
(0.4°C)
79th Coolest
Coolest since:
1904
49th Warmest
Warmest since:
2012
Ties: 1992, 2011, 2019
Apr 1989–Sep 1990
18-Month
58.0°F
(14.4°C)
58.0°F
(14.4°C)
0.0°F
(0.0°C)
57th Coolest
Coolest since:
1918
71st Warmest
Warmest since:
2012
Ties: 1896, 1948, 1950, 1966, 1973, 2003
Oct 1988–Sep 1990
24-Month
53.1°F
(11.7°C)
53.0°F
(11.7°C)
0.1°F
(0.0°C)
55th Coolest
Coolest since:
1979
72nd Warmest
Warmest since:
2017
Ties: 1915, 1926, 1940, 1941, 1945, 1984
Oct 1987–Sep 1990
36-Month
53.4°F
(11.9°C)
53.1°F
(11.7°C)
0.3°F
(0.2°C)
77th Coolest
Coolest since:
1979
49th Warmest
Warmest since:
2018
Ties: 1915, 1931, 1940, 1976
Oct 1986–Sep 1990
48-Month
53.7°F
(12.1°C)
53.0°F
(11.7°C)
0.7°F
(0.4°C)
86th Coolest
Coolest since:
1980
39th Warmest
Warmest since:
2019
Ties: 1941, 1942
Oct 1985–Sep 1990
60-Month
53.8°F
(12.1°C)
53.0°F
(11.7°C)
0.8°F
(0.4°C)
92nd Coolest
Coolest since:
1982
32nd Warmest
Warmest since:
2020
Ties: 1942, 1989, 1995, 1999, 2000, 2017

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