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 1977

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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 1977 1-Month	71.8°F (22.1°C)	73.4°F (23.0°C)	-1.6°F (-0.9°C)	30th Coolest	Coolest since: 1976	1915
	71.8°F (22.1°C)	73.4°F (23.0°C)	-1.6°F (-0.9°C)	99th Warmest	Warmest since: 1975	1947
	Ties: 2008
Jul–Aug 1977 2-Month	74.7°F (23.7°C)	74.5°F (23.6°C)	0.2°F (0.1°C)	72nd Coolest	Coolest since: 1976	1915
	74.7°F (23.7°C)	74.5°F (23.6°C)	0.2°F (0.1°C)	57th Warmest	Warmest since: 1973	1936
	Ties: 1923, 1966, 2022
Jun–Aug 1977 3-Month	73.4°F (23.0°C)	73.5°F (23.1°C)	-0.1°F (-0.1°C)	57th Coolest	Coolest since: 1976	1915
	73.4°F (23.0°C)	73.5°F (23.1°C)	-0.1°F (-0.1°C)	72nd Warmest	Warmest since: 1975	1936
	Ties: 1948, 1966, 1978, 1986, 2001
May–Aug 1977 4-Month	72.3°F (22.4°C)	70.6°F (21.4°C)	1.7°F (1.0°C)	105th Coolest	Coolest since: 1976	1915
	72.3°F (22.4°C)	70.6°F (21.4°C)	1.7°F (1.0°C)	24th Warmest	Warmest since: 1959	1936
	Ties: 1983
Apr–Aug 1977 5-Month	69.3°F (20.7°C)	66.8°F (19.3°C)	2.5°F (1.4°C)	121st Coolest	Coolest since: 1976	1907
	69.3°F (20.7°C)	66.8°F (19.3°C)	2.5°F (1.4°C)	8th Warmest	Warmest since: 1955	1934
	Ties: 1921, 1955
Mar–Aug 1977 6-Month	65.4°F (18.6°C)	62.3°F (16.8°C)	3.1°F (1.8°C)	124th Coolest	Coolest since: 1976	1950, 1960
Mar–Aug 1977 6-Month	65.4°F (18.6°C)	62.3°F (16.8°C)	3.1°F (1.8°C)	5th Warmest	Warmest since: 1921	2012
Feb–Aug 1977 7-Month	60.1°F (15.6°C)	57.6°F (14.2°C)	2.5°F (1.4°C)	119th Coolest	Coolest since: 1976	1904
Feb–Aug 1977 7-Month	60.1°F (15.6°C)	57.6°F (14.2°C)	2.5°F (1.4°C)	10th Warmest	Warmest since: 1938	2012
Jan–Aug 1977 8-Month	53.9°F (12.2°C)	53.6°F (12.0°C)	0.3°F (0.2°C)	72nd Coolest	Coolest since: 1975	1912
	53.9°F (12.2°C)	53.6°F (12.0°C)	0.3°F (0.2°C)	57th Warmest	Warmest since: 1976	2012
	Ties: 1935, 1943, 1957, 2004, 2022
Dec 1976–Aug 1977 9-Month	50.5°F (10.3°C)	50.9°F (10.5°C)	-0.4°F (-0.2°C)	47th Coolest	Coolest since: 1971	1904
	50.5°F (10.3°C)	50.9°F (10.5°C)	-0.4°F (-0.2°C)	81st Warmest	Warmest since: 1976	2012
	Ties: 1897, 1906, 2015
Nov 1976–Aug 1977 10-Month	48.8°F (9.3°C)	49.9°F (9.9°C)	-1.1°F (-0.6°C)	25th Coolest	Coolest since: 1970	1904
	48.8°F (9.3°C)	49.9°F (9.9°C)	-1.1°F (-0.6°C)	103rd Warmest	Warmest since: 1976	2012
	Ties: 1927
Oct 1976–Aug 1977 11-Month	48.7°F (9.3°C)	50.3°F (10.2°C)	-1.6°F (-0.9°C)	15th Coolest	Coolest since: 1960	1904
	48.7°F (9.3°C)	50.3°F (10.2°C)	-1.6°F (-0.9°C)	113th Warmest	Warmest since: 1976	2012
	Ties: 1905
Sep 1976–Aug 1977 12-Month	50.0°F (10.0°C)	51.6°F (10.9°C)	-1.6°F (-0.9°C)	13th Coolest	Coolest since: 1951	1904
	50.0°F (10.0°C)	51.6°F (10.9°C)	-1.6°F (-0.9°C)	115th Warmest	Warmest since: 1976	2012
	Ties: 1996
Mar 1976–Aug 1977 18-Month	54.2°F (12.3°C)	55.2°F (12.9°C)	-1.0°F (-0.6°C)	17th Coolest	Coolest since: 1970	1904
	54.2°F (12.3°C)	55.2°F (12.9°C)	-1.0°F (-0.6°C)	111th Warmest	Warmest since: 1976	2012
	Ties: 1902, 1920, 1968, 1994, 2015
Sep 1975–Aug 1977 24-Month	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	42nd Coolest	Coolest since: 1971	1905
	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	85th Warmest	Warmest since: 1976	2017
	Ties: 1920, 1928, 1929, 1937
Sep 1974–Aug 1977 36-Month	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	38th Coolest	Coolest since: 1972	1979
	51.3°F (10.7°C)	51.6°F (10.9°C)	-0.3°F (-0.2°C)	88th Warmest	Warmest since: 1976	2018
	Ties: 1900, 1902, 1951, 1965, 1972, 1994
Sep 1973–Aug 1977 48-Month	51.6°F (10.9°C)	51.6°F (10.9°C)	0.0°F (0.0°C)	52nd Coolest	Coolest since: 1973	1905
	51.6°F (10.9°C)	51.6°F (10.9°C)	0.0°F (0.0°C)	73rd Warmest	Warmest since: 1976	2019
	Ties: 1911, 1914, 1946, 1947, 1983
Sep 1972–Aug 1977 60-Month	51.6°F (10.9°C)	51.6°F (10.9°C)	0.0°F (0.0°C)	55th Coolest	Coolest since: 1974	1906
	51.6°F (10.9°C)	51.6°F (10.9°C)	0.0°F (0.0°C)	69th Warmest	Warmest since: 1976	2020
	Ties: 1931, 1947, 1974, 1998

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 3, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings