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 1930

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
July 1930
1-Month 		82.0°F
(27.8°C)		 77.9°F
(25.5°C)		 4.1°F
(2.3°C)		 121st Coolest
Coolest since:
 2014
8th Warmest
Warmest since:
 2012
Jun–Jul 1930
2-Month 		77.8°F
(25.4°C)		 75.9°F
(24.4°C)		 1.9°F
(1.0°C)		 107th Coolest
Coolest since:
 1904, 1927
22nd Warmest
Warmest since:
 1934
Ties: 1913
May–Jul 1930
3-Month 		73.7°F
(23.2°C)		 72.3°F
(22.4°C)		 1.4°F
(0.8°C)		 101st Coolest
Coolest since:
 1924
28th Warmest
Warmest since:
 1934
Ties: 1964, 2016
Apr–Jul 1930
4-Month 		70.0°F
(21.1°C)		 68.1°F
(20.1°C)		 1.9°F
(1.0°C)		 113th Coolest
Coolest since:
 1907
16th Warmest
Warmest since:
 2012
Ties: 1936, 1964
Mar–Jul 1930
5-Month 		64.6°F
(18.1°C)		 63.4°F
(17.4°C)		 1.2°F
(0.7°C)		 99th Coolest
Coolest since:
 1960
30th Warmest
Warmest since:
 2012
Ties: 1985, 2015, 2018, 2021
Feb–Jul 1930
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, 1953, 1998, 2011
Jan–Jul 1930
7-Month 		55.9°F
(13.3°C)		 54.7°F
(12.6°C)		 1.2°F
(0.7°C)		 94th Coolest
Coolest since:
 1912
35th Warmest
Warmest since:
 2012
Dec 1929–Jul 1930
8-Month 		53.4°F
(11.9°C)		 52.2°F
(11.2°C)		 1.2°F
(0.7°C)		 95th Coolest
Coolest since:
 1978
33rd Warmest
Warmest since:
 2012
Ties: 1939, 1941, 1949, 2019
Nov 1929–Jul 1930
9-Month 		51.9°F
(11.1°C)		 51.3°F
(10.7°C)		 0.6°F
(0.4°C)		 76th Coolest
Coolest since:
 1904, 1912
52nd Warmest
Warmest since:
 2012
Ties: 1981, 1990, 2019
Oct 1929–Jul 1930
10-Month 		52.3°F
(11.3°C)		 52.0°F
(11.1°C)		 0.3°F
(0.2°C)		 71st Coolest
Coolest since:
 1904, 1912
57th Warmest
Warmest since:
 2012
Ties: 1909
Sep 1929–Jul 1930
11-Month 		53.7°F
(12.1°C)		 53.5°F
(11.9°C)		 0.2°F
(0.2°C)		 67th Coolest
Coolest since:
 1904
61st Warmest
Warmest since:
 2012
Ties: 1913, 1966
Aug 1929–Jul 1930
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
72nd Warmest
Warmest since:
 2012
Ties: 1908, 1959, 1966, 1985, 2009, 2013
Feb 1929–Jul 1930
18-Month 		56.2°F
(13.4°C)		 56.5°F
(13.6°C)		 -0.3°F
(-0.2°C)		 51st Coolest
Coolest since:
 1918, 1979
77th Warmest
Warmest since:
 2012
Ties: 1925, 1983, 1985, 2009
Aug 1928–Jul 1930
24-Month 		55.0°F
(12.8°C)		 55.4°F
(13.0°C)		 -0.4°F
(-0.2°C)		 37th Coolest
Coolest since:
 1979
90th Warmest
Warmest since:
 2017
Ties: 1924, 1982, 1984
Aug 1927–Jul 1930
36-Month 		55.0°F
(12.8°C)		 55.4°F
(13.0°C)		 -0.4°F
(-0.2°C)		 33rd Coolest
Coolest since:
 1979
93rd Warmest
Warmest since:
 2018
Ties: 1901, 1908, 1926, 1995, 1997
Aug 1926–Jul 1930
48-Month 		55.0°F
(12.8°C)		 55.3°F
(12.9°C)		 -0.3°F
(-0.1°C)		 30th Coolest
Coolest since:
 1980
95th Warmest
Warmest since:
 2019
Ties: 1899, 1912, 1915, 1964, 1973, 1983, 1984
Aug 1925–Jul 1930
60-Month 		55.0°F
(12.8°C)		 55.3°F
(12.9°C)		 -0.3°F
(-0.1°C)		 28th Coolest
Coolest since:
 1906
96th Warmest
Warmest since:
 2020
Ties: 1900, 1902, 1912, 1916, 1928, 1960

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