Statewide 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

Average Temperature Rankings, July 2003

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Record Coolest

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
July 2003 1-Month	74.8°F (23.8°C)	75.6°F (24.2°C)	-0.8°F (-0.4°C)	49th Coolest	Coolest since: 2000	2009, 2014
	74.8°F (23.8°C)	75.6°F (24.2°C)	-0.8°F (-0.4°C)	80th Warmest	Warmest since: 2002	1936
	Ties: 1981
Jun–Jul 2003 2-Month	71.4°F (21.9°C)	73.5°F (23.1°C)	-2.1°F (-1.2°C)	14th Coolest	Coolest since: 1992	1915, 1958
	71.4°F (21.9°C)	73.5°F (23.1°C)	-2.1°F (-1.2°C)	115th Warmest	Warmest since: 2002	1934
	Ties: 1951, 1960, 1972, 2004
May–Jul 2003 3-Month	67.9°F (19.9°C)	69.7°F (20.9°C)	-1.8°F (-1.0°C)	19th Coolest	Coolest since: 1997	1924
May–Jul 2003 3-Month	67.9°F (19.9°C)	69.7°F (20.9°C)	-1.8°F (-1.0°C)	110th Warmest	Warmest since: 2002	1934
Apr–Jul 2003 4-Month	64.3°F (17.9°C)	65.2°F (18.4°C)	-0.9°F (-0.5°C)	32nd Coolest	Coolest since: 1997	1907
	64.3°F (17.9°C)	65.2°F (18.4°C)	-0.9°F (-0.5°C)	97th Warmest	Warmest since: 2002	1934
	Ties: 1915, 1929, 1972, 1984, 2009
Mar–Jul 2003 5-Month	59.8°F (15.4°C)	60.1°F (15.6°C)	-0.3°F (-0.2°C)	50th Coolest	Coolest since: 1997	1960
Mar–Jul 2003 5-Month	59.8°F (15.4°C)	60.1°F (15.6°C)	-0.3°F (-0.2°C)	79th Warmest	Warmest since: 2002	2012
Feb–Jul 2003 6-Month	54.2°F (12.3°C)	55.0°F (12.8°C)	-0.8°F (-0.5°C)	44th Coolest	Coolest since: 1996	1947
	54.2°F (12.3°C)	55.0°F (12.8°C)	-0.8°F (-0.5°C)	85th Warmest	Warmest since: 2002	2012
	Ties: 1897, 1969
Jan–Jul 2003 7-Month	49.7°F (9.8°C)	50.7°F (10.4°C)	-1.0°F (-0.6°C)	29th Coolest	Coolest since: 1996	1912
	49.7°F (9.8°C)	50.7°F (10.4°C)	-1.0°F (-0.6°C)	100th Warmest	Warmest since: 2002	2012
	Ties: 1936, 1966, 1969, 1972, 1984
Dec 2002–Jul 2003 8-Month	47.5°F (8.6°C)	48.1°F (8.9°C)	-0.6°F (-0.3°C)	43rd Coolest	Coolest since: 2001	1904
	47.5°F (8.6°C)	48.1°F (8.9°C)	-0.6°F (-0.3°C)	85th Warmest	Warmest since: 2002	2012
	Ties: 2008
Nov 2002–Jul 2003 9-Month	46.7°F (8.2°C)	47.2°F (8.4°C)	-0.5°F (-0.2°C)	42nd Coolest	Coolest since: 2001	1904
	46.7°F (8.2°C)	47.2°F (8.4°C)	-0.5°F (-0.2°C)	86th Warmest	Warmest since: 2002	2012
	Ties: 1927, 1994
Oct 2002–Jul 2003 10-Month	47.2°F (8.4°C)	48.0°F (8.9°C)	-0.8°F (-0.5°C)	30th Coolest	Coolest since: 1997	1904
	47.2°F (8.4°C)	48.0°F (8.9°C)	-0.8°F (-0.5°C)	98th Warmest	Warmest since: 2002	2012
	Ties: 1897, 1906, 1961, 1994
Sep 2002–Jul 2003 11-Month	49.2°F (9.6°C)	49.7°F (9.8°C)	-0.5°F (-0.2°C)	39th Coolest	Coolest since: 1997	1904
	49.2°F (9.6°C)	49.7°F (9.8°C)	-0.5°F (-0.2°C)	89th Warmest	Warmest since: 2002	2012
	Ties: 1945, 1961, 1962, 1965, 1967, 1971, 1975, 1980
Aug 2002–Jul 2003 12-Month	51.4°F (10.8°C)	51.6°F (10.9°C)	-0.2°F (-0.1°C)	50th Coolest	Coolest since: 2001	1904
	51.4°F (10.8°C)	51.6°F (10.9°C)	-0.2°F (-0.1°C)	78th Warmest	Warmest since: 2002	2012
	Ties: 1908, 1928, 1950, 1961, 2001
Feb 2002–Jul 2003 18-Month	53.0°F (11.7°C)	52.7°F (11.5°C)	0.3°F (0.2°C)	76th Coolest	Coolest since: 1997	1918
	53.0°F (11.7°C)	52.7°F (11.5°C)	0.3°F (0.2°C)	52nd Warmest	Warmest since: 2002	2012
	Ties: 1898, 1941, 1947, 1950
Aug 2001–Jul 2003 24-Month	52.7°F (11.5°C)	51.6°F (10.9°C)	1.1°F (0.6°C)	101st Coolest	Coolest since: 2001	1905
	52.7°F (11.5°C)	51.6°F (10.9°C)	1.1°F (0.6°C)	26th Warmest	Warmest since: 2002	2017
	Ties: 1935, 1949, 2020
Aug 2000–Jul 2003 36-Month	52.3°F (11.3°C)	51.6°F (10.9°C)	0.7°F (0.4°C)	88th Coolest	Coolest since: 1998	1979
	52.3°F (11.3°C)	51.6°F (10.9°C)	0.7°F (0.4°C)	38th Warmest	Warmest since: 2002	2018
	Ties: 1940, 1941, 1942
Aug 1999–Jul 2003 48-Month	52.6°F (11.4°C)	51.6°F (10.9°C)	1.0°F (0.5°C)	102nd Coolest	Coolest since: 1999	1905, 1980
	52.6°F (11.4°C)	51.6°F (10.9°C)	1.0°F (0.5°C)	23rd Warmest	Warmest since: 2002	2019
	Ties: 1932, 1942, 1992, 2021
Aug 1998–Jul 2003 60-Month	53.0°F (11.7°C)	51.6°F (10.9°C)	1.4°F (0.8°C)	116th Coolest	Coolest since: 2001	1906
	53.0°F (11.7°C)	51.6°F (10.9°C)	1.4°F (0.8°C)	8th Warmest	Warmest since: 2002	2020
	Ties: 1934, 2012

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 22, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings