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 1927

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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 1927 1-Month	73.7°F (23.2°C)	75.6°F (24.2°C)	-1.9°F (-1.0°C)	27th Coolest	Coolest since: 1924	2009, 2014
	73.7°F (23.2°C)	75.6°F (24.2°C)	-1.9°F (-1.0°C)	102nd Warmest	Warmest since: 1926	1936
	Ties: 1979
Jun–Jul 1927 2-Month	70.5°F (21.4°C)	73.5°F (23.1°C)	-3.0°F (-1.7°C)	6th Coolest	Coolest since: 1924	1915, 1958
Jun–Jul 1927 2-Month	70.5°F (21.4°C)	73.5°F (23.1°C)	-3.0°F (-1.7°C)	123rd Warmest	Warmest since: 1926	1934
May–Jul 1927 3-Month	67.1°F (19.5°C)	69.7°F (20.9°C)	-2.6°F (-1.4°C)	7th Coolest	Coolest since: 1924	1924
May–Jul 1927 3-Month	67.1°F (19.5°C)	69.7°F (20.9°C)	-2.6°F (-1.4°C)	122nd Warmest	Warmest since: 1926	1934
Apr–Jul 1927 4-Month	63.3°F (17.4°C)	65.2°F (18.4°C)	-1.9°F (-1.0°C)	15th Coolest	Coolest since: 1926	1907
Apr–Jul 1927 4-Month	63.3°F (17.4°C)	65.2°F (18.4°C)	-1.9°F (-1.0°C)	114th Warmest	Warmest since: 1925	1934
Mar–Jul 1927 5-Month	59.2°F (15.1°C)	60.1°F (15.6°C)	-0.9°F (-0.5°C)	34th Coolest	Coolest since: 1926	1960
	59.2°F (15.1°C)	60.1°F (15.6°C)	-0.9°F (-0.5°C)	95th Warmest	Warmest since: 1925	2012
	Ties: 1899, 1982
Feb–Jul 1927 6-Month	55.5°F (13.1°C)	55.0°F (12.8°C)	0.5°F (0.3°C)	75th Coolest	Coolest since: 1926	1947
	55.5°F (13.1°C)	55.0°F (12.8°C)	0.5°F (0.3°C)	54th Warmest	Warmest since: 1925	2012
	Ties: 1918
Jan–Jul 1927 7-Month	51.0°F (10.6°C)	50.7°F (10.4°C)	0.3°F (0.2°C)	69th Coolest	Coolest since: 1926	1912
Jan–Jul 1927 7-Month	51.0°F (10.6°C)	50.7°F (10.4°C)	0.3°F (0.2°C)	60th Warmest	Warmest since: 1925	2012
Dec 1926–Jul 1927 8-Month	48.1°F (8.9°C)	48.1°F (8.9°C)	0.0°F (0.0°C)	63rd Coolest	Coolest since: 1926	1904
	48.1°F (8.9°C)	48.1°F (8.9°C)	0.0°F (0.0°C)	65th Warmest	Warmest since: 1925	2012
	Ties: 1956, 1964, 1966, 1975
Nov 1926–Jul 1927 9-Month	46.7°F (8.2°C)	47.2°F (8.4°C)	-0.5°F (-0.2°C)	42nd Coolest	Coolest since: 1926	1904
	46.7°F (8.2°C)	47.2°F (8.4°C)	-0.5°F (-0.2°C)	86th Warmest	Warmest since: 1925	2012
	Ties: 1994, 2003
Oct 1926–Jul 1927 10-Month	47.4°F (8.6°C)	48.0°F (8.9°C)	-0.6°F (-0.3°C)	40th Coolest	Coolest since: 1926	1904
	47.4°F (8.6°C)	48.0°F (8.9°C)	-0.6°F (-0.3°C)	88th Warmest	Warmest since: 1925	2012
	Ties: 1937, 1945
Sep 1926–Jul 1927 11-Month	49.1°F (9.5°C)	49.7°F (9.8°C)	-0.6°F (-0.3°C)	37th Coolest	Coolest since: 1926	1904
	49.1°F (9.5°C)	49.7°F (9.8°C)	-0.6°F (-0.3°C)	91st Warmest	Warmest since: 1925	2012
	Ties: 1993
Aug 1926–Jul 1927 12-Month	51.2°F (10.7°C)	51.6°F (10.9°C)	-0.4°F (-0.2°C)	41st Coolest	Coolest since: 1926	1904
	51.2°F (10.7°C)	51.6°F (10.9°C)	-0.4°F (-0.2°C)	87th Warmest	Warmest since: 1925	2012
	Ties: 1903, 1907, 1943, 1962, 1980, 2009
Feb 1926–Jul 1927 18-Month	51.9°F (11.1°C)	52.7°F (11.5°C)	-0.8°F (-0.4°C)	23rd Coolest	Coolest since: 1924	1918
	51.9°F (11.1°C)	52.7°F (11.5°C)	-0.8°F (-0.4°C)	105th Warmest	Warmest since: 1926	2012
	Ties: 1903, 1906, 1908, 1913, 1929, 1978
Aug 1925–Jul 1927 24-Month	50.7°F (10.4°C)	51.6°F (10.9°C)	-0.9°F (-0.5°C)	18th Coolest	Coolest since: 1918	1905
	50.7°F (10.4°C)	51.6°F (10.9°C)	-0.9°F (-0.5°C)	109th Warmest	Warmest since: 1926	2017
	Ties: 1903, 1952, 1968, 1971, 1994
Aug 1924–Jul 1927 36-Month	51.1°F (10.6°C)	51.6°F (10.9°C)	-0.5°F (-0.3°C)	27th Coolest	Coolest since: 1926	1979
	51.1°F (10.6°C)	51.6°F (10.9°C)	-0.5°F (-0.3°C)	99th Warmest	Warmest since: 1925	2018
	Ties: 1900, 1961, 1982, 1984
Aug 1923–Jul 1927 48-Month	50.9°F (10.5°C)	51.6°F (10.9°C)	-0.7°F (-0.4°C)	17th Coolest	Coolest since: 1920	1905, 1980
	50.9°F (10.5°C)	51.6°F (10.9°C)	-0.7°F (-0.4°C)	108th Warmest	Warmest since: 1926	2019
	Ties: 1902, 1908, 1929
Aug 1922–Jul 1927 60-Month	51.1°F (10.6°C)	51.6°F (10.9°C)	-0.5°F (-0.3°C)	23rd Coolest	Coolest since: 1920	1906
	51.1°F (10.6°C)	51.6°F (10.9°C)	-0.5°F (-0.3°C)	101st Warmest	Warmest since: 1926	2020
	Ties: 1909, 1912, 1929, 1978, 1983

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 26, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings