Climate at a Glance

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Divisional Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of August 2022. For more information, please see Climatological Rankings.

Parameter: Average Temperature Maximum Temperature Minimum Temperature Precipitation Cooling Degree Days Heating Degree Days Palmer Drought Severity Index (PDSI) Palmer Hydrological Drought Index (PHDI) Palmer Modified Drought Index (PMDI) Palmer Z-Index

Year: 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022

Month: January February March April May June July August September October November December

State: Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming

Climate Division: All Divisions 1. Northwest 2. Northeast 3. West 4. Central 5. East 6. West Southwest 7. East Southeast 8. Southwest 9. Southeast

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« August 2018

October 2018 »

Illinois, Climate Division 2. Northeast

Average Temperature Rankings, September 2018

View Period (Months):All1234567891011121824364860

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• Record Warmest

Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2021)	Warmest/Coolest Since	Record
September 2018 1-Month	67.5°F (19.7°C)	63.7°F (17.6°C)	3.8°F (2.1°C)	113th Coolest	Coolest since: 2017	1918
				15th Warmest	Warmest since: 2016	1897
Aug–Sep 2018 2-Month	70.5°F (21.4°C)	67.4°F (19.7°C)	3.1°F (1.7°C)	116th Coolest	Coolest since: 2017	1902
				12th Warmest	Warmest since: 2016	1947
Jul–Sep 2018 3-Month	71.4°F (21.9°C)	69.3°F (20.7°C)	2.1°F (1.2°C)	109th Coolest	Coolest since: 2017	1924
				19th Warmest	Warmest since: 2016	1936
Jun–Sep 2018 4-Month	71.3°F (21.8°C)	69.2°F (20.7°C)	2.1°F (1.1°C)	111th Coolest	Coolest since: 2017	1915
				17th Warmest	Warmest since: 2016	2005
May–Sep 2018 5-Month	70.3°F (21.3°C)	67.2°F (19.6°C)	3.1°F (1.7°C)	125th Coolest	Coolest since: 2017	1924
				3rd Warmest	Warmest since: 1988	1921, 1988
Apr–Sep 2018 6-Month	65.3°F (18.5°C)	63.9°F (17.7°C)	1.4°F (0.8°C)	100th Coolest	Coolest since: 2017	1907
				28th Warmest	Warmest since: 2016	1921
Mar–Sep 2018 7-Month	61.1°F (16.2°C)	59.9°F (15.5°C)	1.2°F (0.7°C)	99th Coolest	Coolest since: 2017	1924
				29th Warmest	Warmest since: 2017	2012
	Ties: 1919, 1939, 1941, 1995, 2017
Feb–Sep 2018 8-Month	56.7°F (13.7°C)	55.5°F (13.1°C)	1.2°F (0.6°C)	96th Coolest	Coolest since: 2015	1904, 1917
				32nd Warmest	Warmest since: 2017	2012
	Ties: 1946, 1953, 1990, 1995, 2007
Jan–Sep 2018 9-Month	52.8°F (11.6°C)	51.7°F (10.9°C)	1.1°F (0.7°C)	86th Coolest	Coolest since: 2015	1904, 1912
				42nd Warmest	Warmest since: 2017	2012
	Ties: 1941, 2001
Dec 2017–Sep 2018 10-Month	50.1°F (10.1°C)	49.1°F (9.5°C)	1.0°F (0.6°C)	88th Coolest	Coolest since: 2015	1904
				39th Warmest	Warmest since: 2017	2012
Nov 2017–Sep 2018 11-Month	49.0°F (9.4°C)	48.1°F (8.9°C)	0.9°F (0.5°C)	89th Coolest	Coolest since: 2015	1904
				38th Warmest	Warmest since: 2017	2012
	Ties: 1896, 2013
Oct 2017–Sep 2018 12-Month	49.6°F (9.8°C)	48.5°F (9.2°C)	1.1°F (0.6°C)	97th Coolest	Coolest since: 2015	1904
				30th Warmest	Warmest since: 2017	2012
	Ties: 1933, 1941, 1953
Apr 2017–Sep 2018 18-Month	54.7°F (12.6°C)	53.6°F (12.0°C)	1.1°F (0.6°C)	97th Coolest	Coolest since: 2015	1904
				30th Warmest	Warmest since: 2017	2012
	Ties: 1919, 1953, 2010
Oct 2016–Sep 2018 24-Month	50.6°F (10.3°C)	48.5°F (9.2°C)	2.1°F (1.1°C)	118th Coolest	Coolest since: 2016	1918
				8th Warmest	Warmest since: 2017	2017
	Ties: 1988
Oct 2015–Sep 2018 36-Month	51.2°F (10.7°C)	48.4°F (9.1°C)	2.8°F (1.6°C)	123rd Coolest	Coolest since: 2017	1979
				2nd Warmest	Warmest since: 2000	2000
Oct 2014–Sep 2018 48-Month	50.4°F (10.2°C)	48.4°F (9.1°C)	2.0°F (1.1°C)	118th Coolest	Coolest since: 2017	1905, 1918
				6th Warmest	Warmest since: 2013	2001, 2002, 2019
Oct 2013–Sep 2018 60-Month	49.4°F (9.7°C)	48.4°F (9.1°C)	1.0°F (0.6°C)	96th Coolest	Coolest since: 2017	1905, 1906
				27th Warmest	Warmest since: 2016	2002
	Ties: 1956, 1988, 1989, 1992

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, Average Temperature, published September 2022, retrieved on October 3, 2022 from https://www.ncdc.noaa.gov/cag/