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, July 1929

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
July 1929 1-Month	78.1°F (25.6°C)	77.9°F (25.5°C)	0.2°F (0.1°C)	75th Coolest	Coolest since: 1928	2014
	78.1°F (25.6°C)	77.9°F (25.5°C)	0.2°F (0.1°C)	54th Warmest	Warmest since: 1926	2012
	Ties: 1902, 1907, 1957, 1973, 1998, 2001
Jun–Jul 1929 2-Month	74.7°F (23.7°C)	75.9°F (24.4°C)	-1.2°F (-0.7°C)	35th Coolest	Coolest since: 1928	1904, 1927
	74.7°F (23.7°C)	75.9°F (24.4°C)	-1.2°F (-0.7°C)	94th Warmest	Warmest since: 1926	1934
	Ties: 1908
May–Jul 1929 3-Month	70.4°F (21.3°C)	72.3°F (22.4°C)	-1.9°F (-1.1°C)	17th Coolest	Coolest since: 1928	1924
	70.4°F (21.3°C)	72.3°F (22.4°C)	-1.9°F (-1.1°C)	112th Warmest	Warmest since: 1926	1934
	Ties: 1989, 2003
Apr–Jul 1929 4-Month	67.3°F (19.6°C)	68.1°F (20.1°C)	-0.8°F (-0.5°C)	34th Coolest	Coolest since: 1928	1907
	67.3°F (19.6°C)	68.1°F (20.1°C)	-0.8°F (-0.5°C)	95th Warmest	Warmest since: 1925	2012
	Ties: 1898, 1923, 1960, 1966, 1968, 1996
Mar–Jul 1929 5-Month	63.7°F (17.6°C)	63.4°F (17.4°C)	0.3°F (0.2°C)	69th Coolest	Coolest since: 1928	1960
	63.7°F (17.6°C)	63.4°F (17.4°C)	0.3°F (0.2°C)	60th Warmest	Warmest since: 1925	2012
	Ties: 1948, 1967, 2019
Feb–Jul 1929 6-Month	57.6°F (14.2°C)	58.6°F (14.8°C)	-1.0°F (-0.6°C)	33rd Coolest	Coolest since: 1928	1947
	57.6°F (14.2°C)	58.6°F (14.8°C)	-1.0°F (-0.6°C)	96th Warmest	Warmest since: 1927	2012
	Ties: 1926, 1937
Jan–Jul 1929 7-Month	53.4°F (11.9°C)	54.7°F (12.6°C)	-1.3°F (-0.7°C)	21st Coolest	Coolest since: 1924	1912
	53.4°F (11.9°C)	54.7°F (12.6°C)	-1.3°F (-0.7°C)	108th Warmest	Warmest since: 1928	2012
	Ties: 1906, 1918, 1961
Dec 1928–Jul 1929 8-Month	51.3°F (10.7°C)	52.2°F (11.2°C)	-0.9°F (-0.5°C)	33rd Coolest	Coolest since: 1928	1978
	51.3°F (10.7°C)	52.2°F (11.2°C)	-0.9°F (-0.5°C)	95th Warmest	Warmest since: 1927	2012
	Ties: 1926, 2003
Nov 1928–Jul 1929 9-Month	50.5°F (10.3°C)	51.3°F (10.7°C)	-0.8°F (-0.4°C)	35th Coolest	Coolest since: 1928	1904, 1912
	50.5°F (10.3°C)	51.3°F (10.7°C)	-0.8°F (-0.4°C)	93rd Warmest	Warmest since: 1927	2012
	Ties: 1900, 1945, 1971
Oct 1928–Jul 1929 10-Month	51.5°F (10.8°C)	52.0°F (11.1°C)	-0.5°F (-0.3°C)	44th Coolest	Coolest since: 1928	1904, 1912
	51.5°F (10.8°C)	52.0°F (11.1°C)	-0.5°F (-0.3°C)	84th Warmest	Warmest since: 1927	2012
	Ties: 1927, 1973, 1989
Sep 1928–Jul 1929 11-Month	52.7°F (11.5°C)	53.5°F (11.9°C)	-0.8°F (-0.4°C)	32nd Coolest	Coolest since: 1926	1904
	52.7°F (11.5°C)	53.5°F (11.9°C)	-0.8°F (-0.4°C)	96th Warmest	Warmest since: 1928	2012
	Ties: 1980
Aug 1928–Jul 1929 12-Month	54.7°F (12.6°C)	55.4°F (13.0°C)	-0.7°F (-0.4°C)	35th Coolest	Coolest since: 1926	1904
	54.7°F (12.6°C)	55.4°F (13.0°C)	-0.7°F (-0.4°C)	93rd Warmest	Warmest since: 1928	2012
	Ties: 1961
Feb 1928–Jul 1929 18-Month	55.4°F (13.0°C)	56.5°F (13.6°C)	-1.1°F (-0.6°C)	14th Coolest	Coolest since: 1924	1918, 1979
	55.4°F (13.0°C)	56.5°F (13.6°C)	-1.1°F (-0.6°C)	114th Warmest	Warmest since: 1928	2012
	Ties: 1902, 1912, 1959, 1997
Aug 1927–Jul 1929 24-Month	54.7°F (12.6°C)	55.4°F (13.0°C)	-0.7°F (-0.4°C)	23rd Coolest	Coolest since: 1919	1979
	54.7°F (12.6°C)	55.4°F (13.0°C)	-0.7°F (-0.4°C)	104th Warmest	Warmest since: 1928	2017
	Ties: 1899, 1919, 1960, 1963, 1983
Aug 1926–Jul 1929 36-Month	54.9°F (12.7°C)	55.4°F (13.0°C)	-0.5°F (-0.3°C)	28th Coolest	Coolest since: 1928	1979
	54.9°F (12.7°C)	55.4°F (13.0°C)	-0.5°F (-0.3°C)	98th Warmest	Warmest since: 1928	2018
	Ties: 1928, 1951, 1952, 1982
Aug 1925–Jul 1929 48-Month	54.8°F (12.7°C)	55.3°F (12.9°C)	-0.5°F (-0.2°C)	20th Coolest	Coolest since: 1920	1980
	54.8°F (12.7°C)	55.3°F (12.9°C)	-0.5°F (-0.2°C)	105th Warmest	Warmest since: 1928	2019
	Ties: 1900, 1913, 1962, 1968, 1985
Aug 1924–Jul 1929 60-Month	55.1°F (12.8°C)	55.3°F (12.9°C)	-0.2°F (-0.1°C)	35th Coolest	Coolest since: 1928	1906
	55.1°F (12.8°C)	55.3°F (12.9°C)	-0.2°F (-0.1°C)	89th Warmest	Warmest since: 1927	2020
	Ties: 1913, 1921, 1951, 1965, 1968, 1985, 1986

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published May 2023, retrieved on June 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings