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 5. East

Average Temperature Rankings, August 1951

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
August 1951 1-Month	70.0°F (21.1°C)	72.1°F (22.3°C)	-2.1°F (-1.2°C)	26th Coolest	Coolest since: 1950	1915
August 1951 1-Month	70.0°F (21.1°C)	72.1°F (22.3°C)	-2.1°F (-1.2°C)	103rd Warmest	Warmest since: 1949	1947
Jul–Aug 1951 2-Month	71.4°F (21.9°C)	73.3°F (22.9°C)	-1.9°F (-1.0°C)	18th Coolest	Coolest since: 1950	1915
	71.4°F (21.9°C)	73.3°F (22.9°C)	-1.9°F (-1.0°C)	111th Warmest	Warmest since: 1949	1936
	Ties: 1917, 1946, 1962, 1997
Jun–Aug 1951 3-Month	70.2°F (21.2°C)	72.3°F (22.4°C)	-2.1°F (-1.2°C)	17th Coolest	Coolest since: 1950	1915
	70.2°F (21.2°C)	72.3°F (22.4°C)	-2.1°F (-1.2°C)	112th Warmest	Warmest since: 1949	1936
	Ties: 1945
May–Aug 1951 4-Month	68.4°F (20.2°C)	69.5°F (20.8°C)	-1.1°F (-0.6°C)	31st Coolest	Coolest since: 1950	1915
	68.4°F (20.2°C)	69.5°F (20.8°C)	-1.1°F (-0.6°C)	98th Warmest	Warmest since: 1949	1934
	Ties: 1966, 1981, 2004
Apr–Aug 1951 5-Month	64.1°F (17.8°C)	65.5°F (18.6°C)	-1.4°F (-0.8°C)	21st Coolest	Coolest since: 1950	1907
Apr–Aug 1951 5-Month	64.1°F (17.8°C)	65.5°F (18.6°C)	-1.4°F (-0.8°C)	108th Warmest	Warmest since: 1949	1991
Mar–Aug 1951 6-Month	59.3°F (15.2°C)	61.0°F (16.1°C)	-1.7°F (-0.9°C)	12th Coolest	Coolest since: 1950	1904
	59.3°F (15.2°C)	61.0°F (16.1°C)	-1.7°F (-0.9°C)	117th Warmest	Warmest since: 1949	2012
	Ties: 1927, 1947
Feb–Aug 1951 7-Month	54.8°F (12.7°C)	56.2°F (13.4°C)	-1.4°F (-0.7°C)	23rd Coolest	Coolest since: 1950	1904
	54.8°F (12.7°C)	56.2°F (13.4°C)	-1.4°F (-0.7°C)	106th Warmest	Warmest since: 1949	2012
	Ties: 1900, 1901, 1906, 1996
Jan–Aug 1951 8-Month	51.2°F (10.7°C)	52.2°F (11.2°C)	-1.0°F (-0.5°C)	33rd Coolest	Coolest since: 1950	1904, 1912
	51.2°F (10.7°C)	52.2°F (11.2°C)	-1.0°F (-0.5°C)	96th Warmest	Warmest since: 1949	2012
	Ties: 1901, 1967, 1972
Dec 1950–Aug 1951 9-Month	47.5°F (8.6°C)	49.5°F (9.7°C)	-2.0°F (-1.1°C)	12th Coolest	Coolest since: 1920	1904
	47.5°F (8.6°C)	49.5°F (9.7°C)	-2.0°F (-1.1°C)	116th Warmest	Warmest since: 1950	2012
	Ties: 1899, 1905, 1984
Nov 1950–Aug 1951 10-Month	46.1°F (7.8°C)	48.5°F (9.2°C)	-2.4°F (-1.4°C)	8th Coolest	Coolest since: 1920	1904
Nov 1950–Aug 1951 10-Month	46.1°F (7.8°C)	48.5°F (9.2°C)	-2.4°F (-1.4°C)	120th Warmest	Warmest since: 1950	2012
Oct 1950–Aug 1951 11-Month	47.2°F (8.4°C)	49.0°F (9.4°C)	-1.8°F (-1.0°C)	14th Coolest	Coolest since: 1926	1904
	47.2°F (8.4°C)	49.0°F (9.4°C)	-1.8°F (-1.0°C)	114th Warmest	Warmest since: 1950	2012
	Ties: 1960
Sep 1950–Aug 1951 12-Month	48.6°F (9.2°C)	50.3°F (10.2°C)	-1.7°F (-1.0°C)	12th Coolest	Coolest since: 1926	1904
	48.6°F (9.2°C)	50.3°F (10.2°C)	-1.7°F (-1.0°C)	116th Warmest	Warmest since: 1950	2012
	Ties: 1905, 1926, 1963
Mar 1950–Aug 1951 18-Month	51.8°F (11.0°C)	53.9°F (12.2°C)	-2.1°F (-1.2°C)	4th Coolest	Coolest since: 1918	1904
Mar 1950–Aug 1951 18-Month	51.8°F (11.0°C)	53.9°F (12.2°C)	-2.1°F (-1.2°C)	124th Warmest	Warmest since: 1950	2012
Sep 1949–Aug 1951 24-Month	49.2°F (9.6°C)	50.3°F (10.2°C)	-1.1°F (-0.6°C)	13th Coolest	Coolest since: 1927	1905
	49.2°F (9.6°C)	50.3°F (10.2°C)	-1.1°F (-0.6°C)	114th Warmest	Warmest since: 1950	2017
	Ties: 1900, 1906, 1917, 1963
Sep 1948–Aug 1951 36-Month	50.2°F (10.1°C)	50.3°F (10.2°C)	-0.1°F (-0.1°C)	50th Coolest	Coolest since: 1945	1904
	50.2°F (10.1°C)	50.3°F (10.2°C)	-0.1°F (-0.1°C)	76th Warmest	Warmest since: 1950	2018
	Ties: 1898, 1924, 1930, 1938, 1958, 1994, 1996, 1997
Sep 1947–Aug 1951 48-Month	50.3°F (10.2°C)	50.3°F (10.2°C)	0.0°F (0.0°C)	51st Coolest	Coolest since: 1946	1905
	50.3°F (10.2°C)	50.3°F (10.2°C)	0.0°F (0.0°C)	74th Warmest	Warmest since: 1950	2019
	Ties: 1925, 1938, 1952, 1959, 1973, 1983
Sep 1946–Aug 1951 60-Month	50.3°F (10.2°C)	50.3°F (10.2°C)	0.0°F (0.0°C)	51st Coolest	Coolest since: 1947	1906
	50.3°F (10.2°C)	50.3°F (10.2°C)	0.0°F (0.0°C)	73rd Warmest	Warmest since: 1950	2020
	Ties: 1931, 1947

Citing This Page

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