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 1930

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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 1930 1-Month	75.4°F (24.1°C)	73.4°F (23.0°C)	2.0°F (1.1°C)	106th Coolest	Coolest since: 1929	1915
	75.4°F (24.1°C)	73.4°F (23.0°C)	2.0°F (1.1°C)	23rd Warmest	Warmest since: 1918	1947
	Ties: 1906
Jul–Aug 1930 2-Month	76.9°F (24.9°C)	74.5°F (23.6°C)	2.4°F (1.3°C)	115th Coolest	Coolest since: 1929	1915
Jul–Aug 1930 2-Month	76.9°F (24.9°C)	74.5°F (23.6°C)	2.4°F (1.3°C)	14th Warmest	Warmest since: 1916	1936
Jun–Aug 1930 3-Month	74.9°F (23.8°C)	73.5°F (23.1°C)	1.4°F (0.7°C)	103rd Coolest	Coolest since: 1929	1915
	74.9°F (23.8°C)	73.5°F (23.1°C)	1.4°F (0.7°C)	26th Warmest	Warmest since: 1921	1936
	Ties: 1919, 1944, 2018
May–Aug 1930 4-Month	72.0°F (22.2°C)	70.6°F (21.4°C)	1.4°F (0.8°C)	98th Coolest	Coolest since: 1929	1915
	72.0°F (22.2°C)	70.6°F (21.4°C)	1.4°F (0.8°C)	31st Warmest	Warmest since: 1921	1936
	Ties: 2005, 2016
Apr–Aug 1930 5-Month	68.5°F (20.3°C)	66.8°F (19.3°C)	1.7°F (1.0°C)	112th Coolest	Coolest since: 1929	1907
	68.5°F (20.3°C)	66.8°F (19.3°C)	1.7°F (1.0°C)	17th Warmest	Warmest since: 1921	1934
	Ties: 1913, 1959, 2001, 2006
Mar–Aug 1930 6-Month	63.5°F (17.5°C)	62.3°F (16.8°C)	1.2°F (0.7°C)	103rd Coolest	Coolest since: 1929	1950, 1960
	63.5°F (17.5°C)	62.3°F (16.8°C)	1.2°F (0.7°C)	26th Warmest	Warmest since: 1925	2012
	Ties: 1911, 1922, 1933, 1941, 1995, 2000, 2017, 2022
Feb–Aug 1930 7-Month	60.0°F (15.6°C)	57.6°F (14.2°C)	2.4°F (1.4°C)	118th Coolest	Coolest since: 1929	1904
Feb–Aug 1930 7-Month	60.0°F (15.6°C)	57.6°F (14.2°C)	2.4°F (1.4°C)	11th Warmest	Warmest since: 1921	2012
Jan–Aug 1930 8-Month	54.8°F (12.7°C)	53.6°F (12.0°C)	1.2°F (0.7°C)	94th Coolest	Coolest since: 1929	1912
	54.8°F (12.7°C)	53.6°F (12.0°C)	1.2°F (0.7°C)	35th Warmest	Warmest since: 1925	2012
	Ties: 1919, 1973
Dec 1929–Aug 1930 9-Month	52.0°F (11.1°C)	50.9°F (10.5°C)	1.1°F (0.6°C)	92nd Coolest	Coolest since: 1929	1904
	52.0°F (11.1°C)	50.9°F (10.5°C)	1.1°F (0.6°C)	36th Warmest	Warmest since: 1922	2012
	Ties: 1911, 1939, 1976
Nov 1929–Aug 1930 10-Month	50.4°F (10.2°C)	49.9°F (9.9°C)	0.5°F (0.3°C)	82nd Coolest	Coolest since: 1929	1904
	50.4°F (10.2°C)	49.9°F (9.9°C)	0.5°F (0.3°C)	46th Warmest	Warmest since: 1925	2012
	Ties: 1911, 1944, 1952, 1990, 1992
Oct 1929–Aug 1930 11-Month	50.6°F (10.3°C)	50.3°F (10.2°C)	0.3°F (0.1°C)	72nd Coolest	Coolest since: 1929	1904
	50.6°F (10.3°C)	50.3°F (10.2°C)	0.3°F (0.1°C)	56th Warmest	Warmest since: 1925	2012
	Ties: 1896, 1900, 1985
Sep 1929–Aug 1930 12-Month	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F (0.1°C)	66th Coolest	Coolest since: 1929	1904
	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F (0.1°C)	62nd Warmest	Warmest since: 1928	2012
	Ties: 1900, 1916, 1948, 1959, 1973, 1985
Mar 1929–Aug 1930 18-Month	55.3°F (12.9°C)	55.2°F (12.9°C)	0.1°F (0.0°C)	64th Coolest	Coolest since: 1929	1904
Mar 1929–Aug 1930 18-Month	55.3°F (12.9°C)	55.2°F (12.9°C)	0.1°F (0.0°C)	64th Warmest	Warmest since: 1923	2012
Sep 1928–Aug 1930 24-Month	51.2°F (10.7°C)	51.6°F (10.9°C)	-0.4°F (-0.2°C)	35th Coolest	Coolest since: 1927	1905
	51.2°F (10.7°C)	51.6°F (10.9°C)	-0.4°F (-0.2°C)	92nd Warmest	Warmest since: 1929	2017
	Ties: 1908, 1925, 1926, 1962, 1967, 1985
Sep 1927–Aug 1930 36-Month	51.5°F (10.8°C)	51.6°F (10.9°C)	-0.1°F (-0.1°C)	51st Coolest	Coolest since: 1929	1979
	51.5°F (10.8°C)	51.6°F (10.9°C)	-0.1°F (-0.1°C)	75th Warmest	Warmest since: 1924	2018
	Ties: 1909, 1945, 1953, 1959, 1986
Sep 1926–Aug 1930 48-Month	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	36th Coolest	Coolest since: 1929	1905
	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	89th Warmest	Warmest since: 1925	2019
	Ties: 1903, 1910, 1964, 1965, 1985
Sep 1925–Aug 1930 60-Month	51.1°F (10.6°C)	51.6°F (10.9°C)	-0.5°F (-0.3°C)	21st Coolest	Coolest since: 1929	1906
	51.1°F (10.6°C)	51.6°F (10.9°C)	-0.5°F (-0.3°C)	103rd Warmest	Warmest since: 1929	2020
	Ties: 1912, 1929, 1964, 1972, 1978, 1997

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 20, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings