Divisional 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, Climate Division 8. Southwest

Average Temperature Rankings, June 1951

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
June 1951 1-Month	72.0°F (22.2°C)	73.9°F (23.3°C)	-1.9°F (-1.1°C)	25th Coolest	Coolest since: 1945	1903
	72.0°F (22.2°C)	73.9°F (23.3°C)	-1.9°F (-1.1°C)	104th Warmest	Warmest since: 1950	1952
	Ties: 1906, 1997
May–Jun 1951 2-Month	69.0°F (20.6°C)	69.5°F (20.8°C)	-0.5°F (-0.2°C)	47th Coolest	Coolest since: 1948	1907
	69.0°F (20.6°C)	69.5°F (20.8°C)	-0.5°F (-0.2°C)	82nd Warmest	Warmest since: 1950	2018
	Ties: 1969, 1972, 1993
Apr–Jun 1951 3-Month	63.2°F (17.3°C)	64.8°F (18.2°C)	-1.6°F (-0.9°C)	17th Coolest	Coolest since: 1945	1907
	63.2°F (17.3°C)	64.8°F (18.2°C)	-1.6°F (-0.9°C)	112th Warmest	Warmest since: 1950	2010
	Ties: 1903, 1973
Mar–Jun 1951 4-Month	57.8°F (14.3°C)	59.7°F (15.4°C)	-1.9°F (-1.1°C)	15th Coolest	Coolest since: 1947	1960
Mar–Jun 1951 4-Month	57.8°F (14.3°C)	59.7°F (15.4°C)	-1.9°F (-1.1°C)	114th Warmest	Warmest since: 1950	2012
Feb–Jun 1951 5-Month	53.3°F (11.8°C)	54.8°F (12.7°C)	-1.5°F (-0.9°C)	26th Coolest	Coolest since: 1947	1912, 1960, 1978
Feb–Jun 1951 5-Month	53.3°F (11.8°C)	54.8°F (12.7°C)	-1.5°F (-0.9°C)	103rd Warmest	Warmest since: 1950	2012
Jan–Jun 1951 6-Month	49.8°F (9.9°C)	50.8°F (10.4°C)	-1.0°F (-0.5°C)	35th Coolest	Coolest since: 1947	1912, 1978
	49.8°F (9.9°C)	50.8°F (10.4°C)	-1.0°F (-0.5°C)	94th Warmest	Warmest since: 1950	2012
	Ties: 1897, 1916, 1926, 1963
Dec 1950–Jun 1951 7-Month	46.8°F (8.2°C)	48.5°F (9.2°C)	-1.7°F (-1.0°C)	17th Coolest	Coolest since: 1940	1978
	46.8°F (8.2°C)	48.5°F (9.2°C)	-1.7°F (-1.0°C)	111th Warmest	Warmest since: 1950	2012
	Ties: 1917, 1958
Nov 1950–Jun 1951 8-Month	45.7°F (7.6°C)	48.0°F (8.9°C)	-2.3°F (-1.3°C)	7th Coolest	Coolest since: 1940	1912
Nov 1950–Jun 1951 8-Month	45.7°F (7.6°C)	48.0°F (8.9°C)	-2.3°F (-1.3°C)	121st Warmest	Warmest since: 1950	2012
Oct 1950–Jun 1951 9-Month	47.6°F (8.7°C)	49.1°F (9.5°C)	-1.5°F (-0.8°C)	19th Coolest	Coolest since: 1940	1912, 1978
Oct 1950–Jun 1951 9-Month	47.6°F (8.7°C)	49.1°F (9.5°C)	-1.5°F (-0.8°C)	109th Warmest	Warmest since: 1950	2012
Sep 1950–Jun 1951 10-Month	49.4°F (9.7°C)	51.1°F (10.6°C)	-1.7°F (-0.9°C)	11th Coolest	Coolest since: 1936	1978
	49.4°F (9.7°C)	51.1°F (10.6°C)	-1.7°F (-0.9°C)	117th Warmest	Warmest since: 1950	2012
	Ties: 1902, 1936, 1960
Aug 1950–Jun 1951 11-Month	51.4°F (10.8°C)	53.3°F (11.8°C)	-1.9°F (-1.0°C)	8th Coolest	Coolest since: 1918	1904, 1978
Aug 1950–Jun 1951 11-Month	51.4°F (10.8°C)	53.3°F (11.8°C)	-1.9°F (-1.0°C)	120th Warmest	Warmest since: 1950	2012
Jul 1950–Jun 1951 12-Month	53.3°F (11.8°C)	55.4°F (13.0°C)	-2.1°F (-1.2°C)	7th Coolest	Coolest since: 1918	1904, 1912, 1918, 1978
	53.3°F (11.8°C)	55.4°F (13.0°C)	-2.1°F (-1.2°C)	121st Warmest	Warmest since: 1950	2012
	Ties: 1968
Jan 1950–Jun 1951 18-Month	52.6°F (11.4°C)	53.9°F (12.2°C)	-1.3°F (-0.8°C)	10th Coolest	Coolest since: 1918	1979
	52.6°F (11.4°C)	53.9°F (12.2°C)	-1.3°F (-0.8°C)	118th Warmest	Warmest since: 1950	2017
	Ties: 1906
Jul 1949–Jun 1951 24-Month	54.5°F (12.5°C)	55.4°F (13.0°C)	-0.9°F (-0.5°C)	15th Coolest	Coolest since: 1918	1978, 1979
	54.5°F (12.5°C)	55.4°F (13.0°C)	-0.9°F (-0.5°C)	112th Warmest	Warmest since: 1950	2017
	Ties: 1952, 1968, 1971, 1983, 1997
Jul 1948–Jun 1951 36-Month	54.9°F (12.7°C)	55.3°F (12.9°C)	-0.4°F (-0.2°C)	28th Coolest	Coolest since: 1930	1979
	54.9°F (12.7°C)	55.3°F (12.9°C)	-0.4°F (-0.2°C)	98th Warmest	Warmest since: 1950	2018
	Ties: 1900, 1908, 1917, 1928, 1952, 1997, 2015
Jul 1947–Jun 1951 48-Month	55.2°F (12.9°C)	55.4°F (13.0°C)	-0.2°F (-0.1°C)	40th Coolest	Coolest since: 1931	1980
	55.2°F (12.9°C)	55.4°F (13.0°C)	-0.2°F (-0.1°C)	85th Warmest	Warmest since: 1950	2019
	Ties: 1901, 1903, 1909, 1914, 1921, 1926, 1928, 1952, 1965, 1966, 1977
Jul 1946–Jun 1951 60-Month	55.1°F (12.8°C)	55.4°F (13.0°C)	-0.3°F (-0.2°C)	35th Coolest	Coolest since: 1930	1980
	55.1°F (12.8°C)	55.4°F (13.0°C)	-0.3°F (-0.2°C)	89th Warmest	Warmest since: 1950	2020
	Ties: 1901, 1910, 1921, 1929, 1960, 1965, 1966, 1968, 1977, 1985, 1986

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings