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 1951

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
July 1951 1-Month	74.0°F (23.3°C)	75.6°F (24.2°C)	-1.6°F (-0.9°C)	33rd Coolest	Coolest since: 1950	2009, 2014
	74.0°F (23.3°C)	75.6°F (24.2°C)	-1.6°F (-0.9°C)	96th Warmest	Warmest since: 1949	1936
	Ties: 1975
Jun–Jul 1951 2-Month	71.4°F (21.9°C)	73.5°F (23.1°C)	-2.1°F (-1.2°C)	14th Coolest	Coolest since: 1950	1915, 1958
	71.4°F (21.9°C)	73.5°F (23.1°C)	-2.1°F (-1.2°C)	115th Warmest	Warmest since: 1949	1934
	Ties: 1960, 1972, 2003, 2004
May–Jul 1951 3-Month	68.8°F (20.4°C)	69.7°F (20.9°C)	-0.9°F (-0.5°C)	35th Coolest	Coolest since: 1950	1924
	68.8°F (20.4°C)	69.7°F (20.9°C)	-0.9°F (-0.5°C)	94th Warmest	Warmest since: 1949	1934
	Ties: 1948
Apr–Jul 1951 4-Month	63.7°F (17.6°C)	65.2°F (18.4°C)	-1.5°F (-0.8°C)	19th Coolest	Coolest since: 1950	1907
	63.7°F (17.6°C)	65.2°F (18.4°C)	-1.5°F (-0.8°C)	110th Warmest	Warmest since: 1949	1934
	Ties: 1958
Mar–Jul 1951 5-Month	58.2°F (14.6°C)	60.1°F (15.6°C)	-1.9°F (-1.0°C)	14th Coolest	Coolest since: 1950	1960
	58.2°F (14.6°C)	60.1°F (15.6°C)	-1.9°F (-1.0°C)	115th Warmest	Warmest since: 1949	2012
	Ties: 1909, 1961
Feb–Jul 1951 6-Month	53.4°F (11.9°C)	55.0°F (12.8°C)	-1.6°F (-0.9°C)	21st Coolest	Coolest since: 1950	1947
	53.4°F (11.9°C)	55.0°F (12.8°C)	-1.6°F (-0.9°C)	108th Warmest	Warmest since: 1949	2012
	Ties: 1902, 1905, 1920
Jan–Jul 1951 7-Month	49.5°F (9.7°C)	50.7°F (10.4°C)	-1.2°F (-0.7°C)	23rd Coolest	Coolest since: 1947	1912
	49.5°F (9.7°C)	50.7°F (10.4°C)	-1.2°F (-0.7°C)	106th Warmest	Warmest since: 1950	2012
	Ties: 1971
Dec 1950–Jul 1951 8-Month	46.0°F (7.8°C)	48.1°F (8.9°C)	-2.1°F (-1.1°C)	13th Coolest	Coolest since: 1920	1904
Dec 1950–Jul 1951 8-Month	46.0°F (7.8°C)	48.1°F (8.9°C)	-2.1°F (-1.1°C)	115th Warmest	Warmest since: 1950	2012
Nov 1950–Jul 1951 9-Month	44.7°F (7.1°C)	47.2°F (8.4°C)	-2.5°F (-1.3°C)	8th Coolest	Coolest since: 1920	1904
Nov 1950–Jul 1951 9-Month	44.7°F (7.1°C)	47.2°F (8.4°C)	-2.5°F (-1.3°C)	120th Warmest	Warmest since: 1950	2012
Oct 1950–Jul 1951 10-Month	46.2°F (7.9°C)	48.0°F (8.9°C)	-1.8°F (-1.0°C)	13th Coolest	Coolest since: 1926	1904
	46.2°F (7.9°C)	48.0°F (8.9°C)	-1.8°F (-1.0°C)	115th Warmest	Warmest since: 1950	2012
	Ties: 1902, 1905
Sep 1950–Jul 1951 11-Month	47.9°F (8.8°C)	49.7°F (9.8°C)	-1.8°F (-1.0°C)	11th Coolest	Coolest since: 1920	1904
	47.9°F (8.8°C)	49.7°F (9.8°C)	-1.8°F (-1.0°C)	117th Warmest	Warmest since: 1950	2012
	Ties: 1920, 1960
Aug 1950–Jul 1951 12-Month	49.6°F (9.8°C)	51.6°F (10.9°C)	-2.0°F (-1.1°C)	8th Coolest	Coolest since: 1918	1904
Aug 1950–Jul 1951 12-Month	49.6°F (9.8°C)	51.6°F (10.9°C)	-2.0°F (-1.1°C)	120th Warmest	Warmest since: 1950	2012
Feb 1950–Jul 1951 18-Month	50.7°F (10.4°C)	52.7°F (11.5°C)	-2.0°F (-1.1°C)	5th Coolest	Coolest since: 1918	1918
Feb 1950–Jul 1951 18-Month	50.7°F (10.4°C)	52.7°F (11.5°C)	-2.0°F (-1.1°C)	123rd Warmest	Warmest since: 1950	2012
Aug 1949–Jul 1951 24-Month	50.5°F (10.3°C)	51.6°F (10.9°C)	-1.1°F (-0.6°C)	9th Coolest	Coolest since: 1918	1905
	50.5°F (10.3°C)	51.6°F (10.9°C)	-1.1°F (-0.6°C)	118th Warmest	Warmest since: 1950	2017
	Ties: 1900, 1906, 1997
Aug 1948–Jul 1951 36-Month	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	36th Coolest	Coolest since: 1930	1979
	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	90th Warmest	Warmest since: 1950	2018
	Ties: 1903, 1914, 1930, 1967, 1972, 1977, 1996
Aug 1947–Jul 1951 48-Month	51.6°F (10.9°C)	51.6°F (10.9°C)	0.0°F (0.0°C)	53rd Coolest	Coolest since: 1947	1905, 1980
	51.6°F (10.9°C)	51.6°F (10.9°C)	0.0°F (0.0°C)	72nd Warmest	Warmest since: 1950	2019
	Ties: 1911, 1967, 1977
Aug 1946–Jul 1951 60-Month	51.4°F (10.8°C)	51.6°F (10.9°C)	-0.2°F (-0.1°C)	41st Coolest	Coolest since: 1930	1906
	51.4°F (10.8°C)	51.6°F (10.9°C)	-0.2°F (-0.1°C)	83rd Warmest	Warmest since: 1950	2020
	Ties: 1915, 1917, 1921, 1926, 1966, 1967, 1984

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