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, June 1900

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
June 1900
1-Month
72.3°F
(22.4°C)
73.9°F
(23.3°C)
-1.6°F
(-0.9°C)
30th Coolest
Coolest to Date
1903
99th Warmest
Warmest since:
1952
Ties: 1938
May–Jun 1900
2-Month
69.2°F
(20.7°C)
69.5°F
(20.8°C)
-0.3°F
(-0.1°C)
51st Coolest
Coolest since:
1907
78th Warmest
Warmest since:
2018
Ties: 1926, 1954
Apr–Jun 1900
3-Month
64.5°F
(18.1°C)
64.7°F
(18.2°C)
-0.2°F
(-0.1°C)
46th Coolest
Coolest since:
1907
83rd Warmest
Warmest since:
2010
Ties: 1971
Mar–Jun 1900
4-Month
58.7°F
(14.8°C)
59.7°F
(15.4°C)
-1.0°F
(-0.6°C)
32nd Coolest
Coolest since:
1960
97th Warmest
Warmest since:
2012
Ties: 1909, 1935, 1979
Feb–Jun 1900
5-Month
52.7°F
(11.5°C)
54.7°F
(12.6°C)
-2.0°F
(-1.1°C)
14th Coolest
Coolest since:
1912, 1960, 1978
115th Warmest
Warmest since:
2012
Ties: 1895, 1907
Jan–Jun 1900
6-Month
49.7°F
(9.8°C)
50.8°F
(10.4°C)
-1.1°F
(-0.6°C)
31st Coolest
Coolest since:
1912
98th Warmest
Warmest since:
2012
Ties: 1906, 1971, 1985
Dec 1899–Jun 1900
7-Month
47.0°F
(8.3°C)
48.5°F
(9.2°C)
-1.5°F
(-0.9°C)
24th Coolest
Coolest since:
1978
104th Warmest
Warmest since:
2012
Nov 1899–Jun 1900
8-Month
47.2°F
(8.4°C)
48.0°F
(8.9°C)
-0.8°F
(-0.5°C)
36th Coolest
Coolest since:
1912
92nd Warmest
Warmest since:
2012
Ties: 1906
Oct 1899–Jun 1900
9-Month
48.7°F
(9.3°C)
49.1°F
(9.5°C)
-0.4°F
(-0.2°C)
47th Coolest
Coolest since:
1912, 1978
81st Warmest
Warmest since:
2012
Ties: 1956
Sep 1899–Jun 1900
10-Month
50.7°F
(10.4°C)
51.1°F
(10.6°C)
-0.4°F
(-0.2°C)
41st Coolest
Coolest since:
1978
87th Warmest
Warmest since:
2012
Ties: 1907, 1945, 1973, 1989
Aug 1899–Jun 1900
11-Month
53.2°F
(11.8°C)
53.3°F
(11.8°C)
-0.1°F
(0.0°C)
51st Coolest
Coolest since:
1904, 1978
77th Warmest
Warmest since:
2012
Ties: 1971, 1983
Jul 1899–Jun 1900
12-Month
55.1°F
(12.8°C)
55.4°F
(13.0°C)
-0.3°F
(-0.2°C)
46th Coolest
Coolest since:
1904, 1918, 1978
82nd Warmest
Warmest since:
2012
Ties: 1903, 1930, 1962, 1971
Jan 1899–Jun 1900
18-Month
52.7°F
(11.5°C)
53.9°F
(12.2°C)
-1.2°F
(-0.7°C)
12th Coolest
Coolest since:
1979
116th Warmest
Warmest since:
2017
Ties: 1899, 1969, 2015
Jul 1898–Jun 1900
24-Month
54.1°F
(12.3°C)
55.4°F
(13.0°C)
-1.3°F
(-0.7°C)
8th Coolest
Coolest to Date
1978, 1979
119th Warmest
Warmest since:
2017
Ties: 1906, 1913, 1970
Jul 1897–Jun 1900
36-Month
54.9°F
(12.7°C)
55.4°F
(13.0°C)
-0.5°F
(-0.3°C)
28th Coolest
Coolest since:
1979
98th Warmest
Warmest since:
2018
Ties: 1908, 1917, 1928, 1951, 1952, 1997, 2015
Jul 1896–Jun 1900
48-Month
54.8°F
(12.7°C)
55.3°F
(12.9°C)
-0.5°F
(-0.2°C)
20th Coolest
Coolest to Date
1980
105th Warmest
Warmest since:
2019
Ties: 1913, 1929, 1962, 1968, 1985
Jul 1895–Jun 1900
60-Month
55.0°F
(12.8°C)
55.3°F
(12.9°C)
-0.3°F
(-0.1°C)
29th Coolest
Coolest to Date
1980, 1981
95th Warmest
Warmest to Date
2020
Ties: 1902, 1912, 1913, 1916, 1928

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