Climate at a Glance

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Statewide 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

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Illinois

Average Temperature Rankings, September 2019

View Period (Months):All1234567891011121824364860

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Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2021)	Warmest/Coolest Since	Record
September 2019 1-Month	71.6°F (22.0°C)	66.2°F (19.0°C)	5.4°F (3.0°C)	124th Coolest	Coolest since: 2018	1918
				4th Warmest	Warmest since: 1933	1925, 1933
Aug–Sep 2019 2-Month	72.2°F (22.3°C)	69.8°F (21.0°C)	2.4°F (1.3°C)	109th Coolest	Coolest since: 2017	1967
				19th Warmest	Warmest since: 2018	1936
	Ties: 1938, 1941, 1960, 2002
Jul–Sep 2019 3-Month	73.9°F (23.3°C)	71.7°F (22.1°C)	2.2°F (1.2°C)	114th Coolest	Coolest since: 2018	1967
				14th Warmest	Warmest since: 2016	1936
	Ties: 1900, 2010
Jun–Sep 2019 4-Month	73.2°F (22.9°C)	71.7°F (22.1°C)	1.5°F (0.8°C)	103rd Coolest	Coolest since: 2017	1915, 1924
				25th Warmest	Warmest since: 2018	1936
	Ties: 1987, 1998, 2012
May–Sep 2019 5-Month	71.0°F (21.7°C)	69.7°F (20.9°C)	1.3°F (0.8°C)	94th Coolest	Coolest since: 2017	1924
				34th Warmest	Warmest since: 2018	1936
	Ties: 2021
Apr–Sep 2019 6-Month	67.9°F (19.9°C)	66.7°F (19.3°C)	1.2°F (0.6°C)	96th Coolest	Coolest since: 2017	1907
				32nd Warmest	Warmest since: 2018	2010
	Ties: 1944, 1980, 2015, 2021
Mar–Sep 2019 7-Month	63.6°F (17.6°C)	62.9°F (17.2°C)	0.7°F (0.4°C)	87th Coolest	Coolest since: 2014	1924
				41st Warmest	Warmest since: 2018	2012
	Ties: 1931
Feb–Sep 2019 8-Month	59.3°F (15.2°C)	58.7°F (14.8°C)	0.6°F (0.4°C)	81st Coolest	Coolest since: 2015	1904
				47th Warmest	Warmest since: 2018	2012
	Ties: 1896, 1995, 2004, 2021
Jan–Sep 2019 9-Month	55.5°F (13.1°C)	54.9°F (12.7°C)	0.6°F (0.4°C)	79th Coolest	Coolest since: 2015	1904, 1912
				49th Warmest	Warmest since: 2018	2012
	Ties: 1949, 1976, 1995
Dec 2018–Sep 2019 10-Month	53.4°F (11.9°C)	52.4°F (11.3°C)	1.0°F (0.6°C)	89th Coolest	Coolest since: 2015	1904
				38th Warmest	Warmest since: 2018	2012
	Ties: 1896, 1944
Nov 2018–Sep 2019 11-Month	51.8°F (11.0°C)	51.4°F (10.8°C)	0.4°F (0.2°C)	77th Coolest	Coolest since: 2015	1904
				50th Warmest	Warmest since: 2018	2012
	Ties: 1952, 1957
Oct 2018–Sep 2019 12-Month	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F (0.2°C)	75th Coolest	Coolest since: 2015	1904
				52nd Warmest	Warmest since: 2018	2012
	Ties: 1901, 1944, 1946, 1959, 1985, 1992, 2013
Apr 2018–Sep 2019 18-Month	57.5°F (14.2°C)	56.7°F (13.7°C)	0.8°F (0.5°C)	94th Coolest	Coolest since: 2015	1904, 1918
				33rd Warmest	Warmest since: 2018	2012
	Ties: 1937, 1983, 1995, 2021
Oct 2017–Sep 2019 24-Month	52.5°F (11.4°C)	51.7°F (10.9°C)	0.8°F (0.5°C)	93rd Coolest	Coolest since: 2015	1979
				33rd Warmest	Warmest since: 2018	2017
	Ties: 1921
Oct 2016–Sep 2019 36-Month	53.3°F (11.8°C)	51.6°F (10.9°C)	1.7°F (0.9°C)	114th Coolest	Coolest since: 2016	1979
				11th Warmest	Warmest since: 2018	2018
	Ties: 2002
Oct 2015–Sep 2019 48-Month	53.8°F (12.1°C)	51.6°F (10.9°C)	2.2°F (1.2°C)	123rd Coolest	Coolest since: 2018	1905
				1st Warmest	Warmest to Date	2019
Oct 2014–Sep 2019 60-Month	53.3°F (11.8°C)	51.6°F (10.9°C)	1.7°F (0.9°C)	120th Coolest	Coolest since: 2018	1906
				3rd Warmest	Warmest since: 2002	2020

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Average Temperature, published September 2022, retrieved on October 1, 2022 from https://www.ncdc.noaa.gov/cag/