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, August 1900

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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
August 1900 1-Month	78.8°F (26.0°C)	73.4°F (23.0°C)	5.4°F (3.0°C)	125th Coolest	Coolest since: 1899	1915
	78.8°F (26.0°C)	73.4°F (23.0°C)	5.4°F (3.0°C)	4th Warmest	Warmest to Date	1947
	Ties: 1995
Jul–Aug 1900 2-Month	76.7°F (24.8°C)	74.5°F (23.6°C)	2.2°F (1.2°C)	113th Coolest	Coolest since: 1899	1915
Jul–Aug 1900 2-Month	76.7°F (24.8°C)	74.5°F (23.6°C)	2.2°F (1.2°C)	16th Warmest	Warmest to Date	1936
Jun–Aug 1900 3-Month	74.6°F (23.7°C)	73.5°F (23.1°C)	1.1°F (0.6°C)	94th Coolest	Coolest since: 1899	1915
	74.6°F (23.7°C)	73.5°F (23.1°C)	1.1°F (0.6°C)	35th Warmest	Warmest to Date	1936
	Ties: 1932, 2020
May–Aug 1900 4-Month	71.9°F (22.2°C)	70.6°F (21.4°C)	1.3°F (0.8°C)	95th Coolest	Coolest since: 1899	1915
	71.9°F (22.2°C)	70.6°F (21.4°C)	1.3°F (0.8°C)	34th Warmest	Warmest since: 1896	1936
	Ties: 1943, 1962, 1964, 1995
Apr–Aug 1900 5-Month	68.0°F (20.0°C)	66.8°F (19.3°C)	1.2°F (0.7°C)	98th Coolest	Coolest since: 1899	1907
	68.0°F (20.0°C)	66.8°F (19.3°C)	1.2°F (0.7°C)	31st Warmest	Warmest since: 1896	1934
	Ties: 1911, 1980, 1986, 2018
Mar–Aug 1900 6-Month	62.3°F (16.8°C)	62.3°F (16.8°C)	0.0°F (0.0°C)	55th Coolest	Coolest since: 1899	1950, 1960
	62.3°F (16.8°C)	62.3°F (16.8°C)	0.0°F (0.0°C)	74th Warmest	Warmest since: 1898	2012
	Ties: 1929, 1962, 1970
Feb–Aug 1900 7-Month	56.6°F (13.7°C)	57.6°F (14.2°C)	-1.0°F (-0.5°C)	31st Coolest	Coolest since: 1899	1904
	56.6°F (13.7°C)	57.6°F (14.2°C)	-1.0°F (-0.5°C)	98th Warmest	Warmest since: 1898	2012
	Ties: 1940, 1965, 1971
Jan–Aug 1900 8-Month	53.3°F (11.8°C)	53.6°F (12.0°C)	-0.3°F (-0.2°C)	55th Coolest	Coolest since: 1899	1912
	53.3°F (11.8°C)	53.6°F (12.0°C)	-0.3°F (-0.2°C)	74th Warmest	Warmest since: 1898	2012
	Ties: 1910, 1916, 1945, 1993
Dec 1899–Aug 1900 9-Month	50.4°F (10.2°C)	50.9°F (10.5°C)	-0.5°F (-0.3°C)	44th Coolest	Coolest since: 1899	1904
	50.4°F (10.2°C)	50.9°F (10.5°C)	-0.5°F (-0.3°C)	84th Warmest	Warmest since: 1898	2012
	Ties: 1923, 2001
Nov 1899–Aug 1900 10-Month	49.8°F (9.9°C)	49.9°F (9.9°C)	-0.1°F (0.0°C)	56th Coolest	Coolest since: 1899	1904
	49.8°F (9.9°C)	49.9°F (9.9°C)	-0.1°F (0.0°C)	72nd Warmest	Warmest since: 1898	2012
	Ties: 1903, 2019
Oct 1899–Aug 1900 11-Month	50.6°F (10.3°C)	50.3°F (10.2°C)	0.3°F (0.1°C)	72nd Coolest	Coolest since: 1899	1904
	50.6°F (10.3°C)	50.3°F (10.2°C)	0.3°F (0.1°C)	56th Warmest	Warmest since: 1898	2012
	Ties: 1896, 1930, 1985
Sep 1899–Aug 1900 12-Month	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F (0.1°C)	66th Coolest	Coolest since: 1899	1904
	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F (0.1°C)	62nd Warmest	Warmest since: 1898	2012
	Ties: 1916, 1930, 1948, 1959, 1973, 1985
Mar 1899–Aug 1900 18-Month	55.2°F (12.9°C)	55.2°F (12.9°C)	0.0°F (0.0°C)	60th Coolest	Coolest since: 1899	1904
	55.2°F (12.9°C)	55.2°F (12.9°C)	0.0°F (0.0°C)	68th Warmest	Warmest since: 1898	2012
	Ties: 1944, 1965, 2003
Sep 1898–Aug 1900 24-Month	50.8°F (10.4°C)	51.6°F (10.9°C)	-0.8°F (-0.5°C)	20th Coolest	Coolest to Date	1905
	50.8°F (10.4°C)	51.6°F (10.9°C)	-0.8°F (-0.5°C)	107th Warmest	Warmest since: 1899	2017
	Ties: 1963, 1968, 1969, 1994
Sep 1897–Aug 1900 36-Month	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	38th Coolest	Coolest since: 1899	1979
	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	88th Warmest	Warmest since: 1898	2018
	Ties: 1902, 1951, 1965, 1972, 1977, 1994
Sep 1896–Aug 1900 48-Month	51.1°F (10.6°C)	51.6°F (10.9°C)	-0.5°F (-0.3°C)	24th Coolest	Coolest to Date	1905
	51.1°F (10.6°C)	51.6°F (10.9°C)	-0.5°F (-0.3°C)	101st Warmest	Warmest since: 1899	2019
	Ties: 1913, 1915, 1926, 1962, 1968
Sep 1895–Aug 1900 60-Month	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	33rd Coolest	Coolest to Date	1906
	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	91st Warmest	Warmest to Date	2020
	Ties: 1901, 1910, 1913, 1915, 1916, 1921, 1965, 1967, 1973

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published June 2023, retrieved on June 9, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings