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 1998

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
July 1998
1-Month
78.1°F
(25.6°C)
77.9°F
(25.5°C)
0.2°F
(0.1°C)
75th Coolest
Coolest since:
2014
54th Warmest
Warmest since:
2012
Ties: 1902, 1907, 1929, 1957, 1973, 2001
Jun–Jul 1998
2-Month
76.7°F
(24.8°C)
75.9°F
(24.4°C)
0.8°F
(0.4°C)
86th Coolest
Coolest since:
1904, 1927
43rd Warmest
Warmest since:
1934
Ties: 2006
May–Jul 1998
3-Month
74.5°F
(23.6°C)
72.3°F
(22.4°C)
2.2°F
(1.2°C)
110th Coolest
Coolest since:
1924
19th Warmest
Warmest since:
1934
Ties: 1941, 1962, 2022
Apr–Jul 1998
4-Month
69.7°F
(20.9°C)
68.1°F
(20.1°C)
1.6°F
(0.8°C)
102nd Coolest
Coolest since:
1907
27th Warmest
Warmest since:
2012
Ties: 1953, 1955, 1965
Mar–Jul 1998
5-Month
64.7°F
(18.2°C)
63.4°F
(17.4°C)
1.3°F
(0.8°C)
103rd Coolest
Coolest since:
1960
26th Warmest
Warmest since:
2012
Ties: 1922, 1933, 1952
Feb–Jul 1998
6-Month
61.1°F
(16.2°C)
58.6°F
(14.8°C)
2.5°F
(1.4°C)
117th Coolest
Coolest since:
1947
12th Warmest
Warmest since:
2012
Ties: 1925, 1930, 1953, 2011
Jan–Jul 1998
7-Month
57.6°F
(14.2°C)
54.7°F
(12.6°C)
2.9°F
(1.6°C)
124th Coolest
Coolest since:
1912
5th Warmest
Warmest since:
2012
Dec 1997–Jul 1998
8-Month
54.9°F
(12.7°C)
52.2°F
(11.2°C)
2.7°F
(1.5°C)
122nd Coolest
Coolest since:
1978
6th Warmest
Warmest since:
2012
Nov 1997–Jul 1998
9-Month
53.5°F
(11.9°C)
51.3°F
(10.7°C)
2.2°F
(1.2°C)
115th Coolest
Coolest since:
1904, 1912
13th Warmest
Warmest since:
2012
Ties: 2005
Oct 1997–Jul 1998
10-Month
53.9°F
(12.2°C)
52.0°F
(11.1°C)
1.9°F
(1.1°C)
114th Coolest
Coolest since:
1904, 1912
14th Warmest
Warmest since:
2012
Sep 1997–Jul 1998
11-Month
55.2°F
(12.9°C)
53.5°F
(11.9°C)
1.7°F
(1.0°C)
112th Coolest
Coolest since:
1904
16th Warmest
Warmest since:
2012
Ties: 1939
Aug 1997–Jul 1998
12-Month
56.8°F
(13.8°C)
55.4°F
(13.0°C)
1.4°F
(0.8°C)
109th Coolest
Coolest since:
1904
19th Warmest
Warmest since:
2012
Ties: 2005
Feb 1997–Jul 1998
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: 1946, 2010, 2021
Aug 1996–Jul 1998
24-Month
55.6°F
(13.1°C)
55.4°F
(13.0°C)
0.2°F
(0.1°C)
73rd Coolest
Coolest since:
1979
54th Warmest
Warmest since:
2017
Ties: 1909, 1944, 1950, 1965, 1975
Aug 1995–Jul 1998
36-Month
55.2°F
(12.9°C)
55.4°F
(13.0°C)
-0.2°F
(-0.1°C)
43rd Coolest
Coolest since:
1979
83rd Warmest
Warmest since:
2018
Ties: 1958, 1959, 1964, 1965, 1967, 1983, 1994
Aug 1994–Jul 1998
48-Month
55.4°F
(13.0°C)
55.3°F
(12.9°C)
0.1°F
(0.1°C)
55th Coolest
Coolest since:
1980
70th Warmest
Warmest since:
2019
Ties: 1910, 1953, 1967, 1995
Aug 1993–Jul 1998
60-Month
55.3°F
(12.9°C)
55.3°F
(12.9°C)
0.0°F
(0.0°C)
51st Coolest
Coolest since:
1906
73rd Warmest
Warmest since:
2020
Ties: 1914, 1917, 1931

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