Divisional Rankings

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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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Record Warmest
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: 1929	2014
July 1930 1-Month	82.0°F (27.8°C)	77.9°F (25.5°C)	4.1°F (2.3°C)	8th Warmest	Warmest since: 1901	2012
Jun–Jul 1930 2-Month	77.8°F (25.4°C)	75.9°F (24.4°C)	1.9°F (1.0°C)	108th Coolest	Coolest since: 1929	1904, 1927
	77.8°F (25.4°C)	75.9°F (24.4°C)	1.9°F (1.0°C)	21st Warmest	Warmest since: 1921	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: 1929	1924
	73.7°F (23.2°C)	72.3°F (22.4°C)	1.4°F (0.8°C)	28th Warmest	Warmest since: 1921	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: 1929	1907
	70.0°F (21.1°C)	68.1°F (20.1°C)	1.9°F (1.0°C)	16th Warmest	Warmest since: 1921	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: 1929	1960
	64.6°F (18.1°C)	63.4°F (17.4°C)	1.2°F (0.7°C)	30th Warmest	Warmest since: 1925	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: 1929	1947
	61.1°F (16.2°C)	58.6°F (14.8°C)	2.5°F (1.4°C)	12th Warmest	Warmest since: 1925	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: 1929	1912
Jan–Jul 1930 7-Month	55.9°F (13.3°C)	54.7°F (12.6°C)	1.2°F (0.7°C)	35th Warmest	Warmest since: 1925	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: 1929	1978
	53.4°F (11.9°C)	52.2°F (11.2°C)	1.2°F (0.7°C)	33rd Warmest	Warmest since: 1925	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: 1929	1904, 1912
	51.9°F (11.1°C)	51.3°F (10.7°C)	0.6°F (0.4°C)	52nd Warmest	Warmest since: 1925	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: 1929	1904, 1912
	52.3°F (11.3°C)	52.0°F (11.1°C)	0.3°F (0.2°C)	57th Warmest	Warmest since: 1925	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: 1929	1904
	53.7°F (12.1°C)	53.5°F (11.9°C)	0.2°F (0.2°C)	61st Warmest	Warmest since: 1925	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: 1929	1904
	55.4°F (13.0°C)	55.4°F (13.0°C)	0.0°F (0.0°C)	72nd Warmest	Warmest since: 1925	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: 1929	1918, 1979
	56.2°F (13.4°C)	56.5°F (13.6°C)	-0.3°F (-0.2°C)	77th Warmest	Warmest since: 1928	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: 1929	1979
	55.0°F (12.8°C)	55.4°F (13.0°C)	-0.4°F (-0.2°C)	90th Warmest	Warmest since: 1928	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: 1929	1979
	55.0°F (12.8°C)	55.4°F (13.0°C)	-0.4°F (-0.2°C)	93rd Warmest	Warmest since: 1927	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: 1929	1980
	55.0°F (12.8°C)	55.3°F (12.9°C)	-0.3°F (-0.1°C)	95th Warmest	Warmest since: 1928	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: 1928	1906
	55.0°F (12.8°C)	55.3°F (12.9°C)	-0.3°F (-0.1°C)	96th Warmest	Warmest since: 1929	2020
	Ties: 1900, 1902, 1912, 1916, 1928, 1960

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published May 2023, retrieved on May 29, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings