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 1998

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
July 1998 1-Month	75.4°F (24.1°C)	75.6°F (24.2°C)	-0.2°F (-0.1°C)	67th Coolest	Coolest since: 1997	2009, 2014
	75.4°F (24.1°C)	75.6°F (24.2°C)	-0.2°F (-0.1°C)	62nd Warmest	Warmest since: 1995	1936
	Ties: 1929
Jun–Jul 1998 2-Month	73.6°F (23.1°C)	73.5°F (23.1°C)	0.1°F (0.0°C)	67th Coolest	Coolest since: 1997	1915
	73.6°F (23.1°C)	73.5°F (23.1°C)	0.1°F (0.0°C)	62nd Warmest	Warmest since: 1995	1934
	Ties: 1899, 1956, 1978, 1993
May–Jul 1998 3-Month	71.5°F (21.9°C)	69.7°F (20.9°C)	1.8°F (1.0°C)	104th Coolest	Coolest since: 1997	1924
	71.5°F (21.9°C)	69.7°F (20.9°C)	1.8°F (1.0°C)	25th Warmest	Warmest since: 1991	1934
	Ties: 2022
Apr–Jul 1998 4-Month	66.8°F (19.3°C)	65.1°F (18.4°C)	1.7°F (0.9°C)	104th Coolest	Coolest since: 1997	1907
	66.8°F (19.3°C)	65.1°F (18.4°C)	1.7°F (0.9°C)	25th Warmest	Warmest since: 1991	1934
	Ties: 1930, 2017
Mar–Jul 1998 5-Month	61.6°F (16.4°C)	60.1°F (15.6°C)	1.5°F (0.8°C)	106th Coolest	Coolest since: 1997	1960
	61.6°F (16.4°C)	60.1°F (15.6°C)	1.5°F (0.8°C)	23rd Warmest	Warmest since: 1991	2012
	Ties: 1896, 2004
Feb–Jul 1998 6-Month	58.0°F (14.4°C)	55.0°F (12.8°C)	3.0°F (1.6°C)	122nd Coolest	Coolest since: 1997	1947
Feb–Jul 1998 6-Month	58.0°F (14.4°C)	55.0°F (12.8°C)	3.0°F (1.6°C)	7th Warmest	Warmest since: 1991	2012
Jan–Jul 1998 7-Month	54.2°F (12.3°C)	50.7°F (10.4°C)	3.5°F (1.9°C)	124th Coolest	Coolest since: 1997	1912
Jan–Jul 1998 7-Month	54.2°F (12.3°C)	50.7°F (10.4°C)	3.5°F (1.9°C)	5th Warmest	Warmest since: 1987	2012
Dec 1997–Jul 1998 8-Month	51.4°F (10.8°C)	48.0°F (8.9°C)	3.4°F (1.9°C)	122nd Coolest	Coolest since: 1997	1904
Dec 1997–Jul 1998 8-Month	51.4°F (10.8°C)	48.0°F (8.9°C)	3.4°F (1.9°C)	6th Warmest	Warmest since: 1987	2012
Nov 1997–Jul 1998 9-Month	50.0°F (10.0°C)	47.2°F (8.4°C)	2.8°F (1.6°C)	118th Coolest	Coolest since: 1997	1904
Nov 1997–Jul 1998 9-Month	50.0°F (10.0°C)	47.2°F (8.4°C)	2.8°F (1.6°C)	10th Warmest	Warmest since: 1991	2012
Oct 1997–Jul 1998 10-Month	50.5°F (10.3°C)	48.0°F (8.9°C)	2.5°F (1.4°C)	118th Coolest	Coolest since: 1997	1904
	50.5°F (10.3°C)	48.0°F (8.9°C)	2.5°F (1.4°C)	10th Warmest	Warmest since: 1991	2012
	Ties: 1954, 1987, 2006
Sep 1997–Jul 1998 11-Month	51.9°F (11.1°C)	49.6°F (9.8°C)	2.3°F (1.3°C)	114th Coolest	Coolest since: 1997	1904
Sep 1997–Jul 1998 11-Month	51.9°F (11.1°C)	49.6°F (9.8°C)	2.3°F (1.3°C)	14th Warmest	Warmest since: 1991	2012
Aug 1997–Jul 1998 12-Month	53.5°F (11.9°C)	51.6°F (10.9°C)	1.9°F (1.0°C)	114th Coolest	Coolest since: 1997	1904
	53.5°F (11.9°C)	51.6°F (10.9°C)	1.9°F (1.0°C)	14th Warmest	Warmest since: 1991	2012
	Ties: 1934, 1939
Feb 1997–Jul 1998 18-Month	53.9°F (12.2°C)	52.7°F (11.5°C)	1.2°F (0.7°C)	100th Coolest	Coolest since: 1997	1918
	53.9°F (12.2°C)	52.7°F (11.5°C)	1.2°F (0.7°C)	28th Warmest	Warmest since: 1992	2012
	Ties: 1919
Aug 1996–Jul 1998 24-Month	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F (0.2°C)	78th Coolest	Coolest since: 1997	1905
	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F (0.2°C)	49th Warmest	Warmest since: 1992	2017
	Ties: 1901, 1973, 1976, 1989
Aug 1995–Jul 1998 36-Month	51.5°F (10.8°C)	51.6°F (10.9°C)	-0.1°F (-0.1°C)	55th Coolest	Coolest since: 1997	1979
	51.5°F (10.8°C)	51.6°F (10.9°C)	-0.1°F (-0.1°C)	71st Warmest	Warmest since: 1993	2018
	Ties: 1909, 1937, 1958
Aug 1994–Jul 1998 48-Month	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F (0.1°C)	66th Coolest	Coolest since: 1997	1905, 1980
	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F (0.1°C)	59th Warmest	Warmest since: 1994	2019
	Ties: 1916, 1925
Aug 1993–Jul 1998 60-Month	51.6°F (10.9°C)	51.6°F (10.9°C)	0.0°F (0.0°C)	54th Coolest	Coolest since: 1997	1906
	51.6°F (10.9°C)	51.6°F (10.9°C)	0.0°F (0.0°C)	70th Warmest	Warmest since: 1995	2020
	Ties: 1931, 1952, 1974, 1985

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on February 4, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings