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 1959

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
June 1959
1-Month
74.0°F
(23.3°C)
73.9°F
(23.3°C)
0.1°F
(0.0°C)
55th Coolest
Coolest since:
1903
74th Warmest
Warmest since:
1952
Ties: 1897, 1937, 1942, 1948, 1965, 1978, 1996
May–Jun 1959
2-Month
71.6°F
(22.0°C)
69.5°F
(20.8°C)
2.1°F
(1.2°C)
104th Coolest
Coolest since:
1907
25th Warmest
Warmest since:
2018
Ties: 1902, 1921, 1986
Apr–Jun 1959
3-Month
66.5°F
(19.2°C)
64.8°F
(18.2°C)
1.7°F
(1.0°C)
101st Coolest
Coolest since:
1907
28th Warmest
Warmest since:
2010
Mar–Jun 1959
4-Month
61.2°F
(16.2°C)
59.7°F
(15.4°C)
1.5°F
(0.8°C)
98th Coolest
Coolest since:
1960
31st Warmest
Warmest since:
2012
Ties: 1896, 1967, 2000, 2015, 2018
Feb–Jun 1959
5-Month
56.1°F
(13.4°C)
54.7°F
(12.6°C)
1.4°F
(0.8°C)
95th Coolest
Coolest since:
1912, 1960, 1978
34th Warmest
Warmest since:
2012
Ties: 1927, 1964, 1992, 2001
Jan–Jun 1959
6-Month
51.5°F
(10.8°C)
50.8°F
(10.4°C)
0.7°F
(0.4°C)
78th Coolest
Coolest since:
1912, 1978
51st Warmest
Warmest since:
2012
Ties: 1930, 1973, 2022
Dec 1958–Jun 1959
7-Month
48.4°F
(9.1°C)
48.5°F
(9.2°C)
-0.1°F
(-0.1°C)
51st Coolest
Coolest since:
1978
77th Warmest
Warmest since:
2012
Ties: 1937, 1964, 2008
Nov 1958–Jun 1959
8-Month
48.3°F
(9.1°C)
48.0°F
(8.9°C)
0.3°F
(0.2°C)
62nd Coolest
Coolest since:
1912
66th Warmest
Warmest since:
2012
Ties: 1975, 1989
Oct 1958–Jun 1959
9-Month
49.3°F
(9.6°C)
49.1°F
(9.5°C)
0.2°F
(0.1°C)
61st Coolest
Coolest since:
1912, 1978
67th Warmest
Warmest since:
2012
Ties: 1896, 1903, 1923, 1931, 1981
Sep 1958–Jun 1959
10-Month
51.2°F
(10.7°C)
51.0°F
(10.6°C)
0.2°F
(0.1°C)
59th Coolest
Coolest since:
1978
69th Warmest
Warmest since:
2012
Ties: 1913, 1916, 1983, 1988
Aug 1958–Jun 1959
11-Month
53.5°F
(11.9°C)
53.3°F
(11.8°C)
0.2°F
(0.1°C)
60th Coolest
Coolest since:
1904, 1978
68th Warmest
Warmest since:
2012
Ties: 1908, 1927, 1944, 1956
Jul 1958–Jun 1959
12-Month
55.4°F
(13.0°C)
55.4°F
(13.0°C)
0.0°F
(0.0°C)
56th Coolest
Coolest since:
1904, 1912, 1918, 1978
72nd Warmest
Warmest since:
2012
Ties: 1965, 1989
Jan 1958–Jun 1959
18-Month
52.9°F
(11.6°C)
53.9°F
(12.2°C)
-1.0°F
(-0.6°C)
17th Coolest
Coolest since:
1979
111th Warmest
Warmest since:
2017
Ties: 1929, 1968, 1977
Jul 1957–Jun 1959
24-Month
54.6°F
(12.6°C)
55.3°F
(12.9°C)
-0.7°F
(-0.3°C)
21st Coolest
Coolest since:
1978, 1979
106th Warmest
Warmest since:
2017
Ties: 1907, 1919, 1929, 1994
Jul 1956–Jun 1959
36-Month
55.2°F
(12.9°C)
55.3°F
(12.9°C)
-0.1°F
(0.0°C)
43rd Coolest
Coolest since:
1979
83rd Warmest
Warmest since:
2018
Ties: 1902, 1903, 1953, 1965, 1983, 1994, 1996, 1998
Jul 1955–Jun 1959
48-Month
55.4°F
(13.0°C)
55.4°F
(13.0°C)
0.0°F
(0.0°C)
54th Coolest
Coolest since:
1980
71st Warmest
Warmest since:
2019
Ties: 1953, 1986, 1995, 1998
Jul 1954–Jun 1959
60-Month
55.7°F
(13.2°C)
55.3°F
(12.9°C)
0.4°F
(0.3°C)
71st Coolest
Coolest since:
1980
53rd Warmest
Warmest since:
2020
Ties: 1940, 1944, 1950, 1954, 1987, 1994

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