Climate at a Glance | Statewide Rankings | National Centers for Environmental Information (NCEI)

Statewide Rankings

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Illinois

March 1949 Average Temperature Rankings

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Coolest/Warmest Since	Record
March 1949 1-Month	39.7°F (4.3°C)	39.8°F (4.3°C)	-0.1°F	63rd Coolest	Coolest since: 1948	1960
March 1949 1-Month	39.7°F (4.3°C)	39.8°F (4.3°C)	-0.1°F	68th Warmest	Warmest since: 1946	2012
Feb–Mar 1949 2-Month	35.1°F (1.7°C)	34.5°F (1.4°C)	0.6°F	72nd Coolest	Coolest since: 1948	1978
Feb–Mar 1949 2-Month	35.1°F (1.7°C)	34.5°F (1.4°C)	0.6°F	59th Warmest	Warmest since: 1946	2012
Jan–Mar 1949 3-Month	32.9°F (0.5°C)	31.4°F (-0.3°C)	1.5°F	83rd Coolest	Coolest since: 1948	1912
	32.9°F (0.5°C)	31.4°F (-0.3°C)	1.5°F	48th Warmest	Warmest since: 1946	2012
	Ties: 1909
Dec 1948–Mar 1949 4-Month	32.8°F (0.4°C)	31.0°F (-0.6°C)	1.8°F	91st Coolest	Coolest since: 1948	1978
	32.8°F (0.4°C)	31.0°F (-0.6°C)	1.8°F	39th Warmest	Warmest since: 1946	2012
	Ties: 1908
Nov 1948–Mar 1949 5-Month	34.9°F (1.6°C)	32.9°F (0.5°C)	2.0°F	96th Coolest	Coolest since: 1948	1912
Nov 1948–Mar 1949 5-Month	34.9°F (1.6°C)	32.9°F (0.5°C)	2.0°F	34th Warmest	Warmest since: 1946	2012
Oct 1948–Mar 1949 6-Month	37.7°F (3.2°C)	36.6°F (2.6°C)	1.1°F	88th Coolest	Coolest since: 1948	1912, 1978
Oct 1948–Mar 1949 6-Month	37.7°F (3.2°C)	36.6°F (2.6°C)	1.1°F	42nd Warmest	Warmest since: 1946	2012
Sep 1948–Mar 1949 7-Month	42.0°F (5.6°C)	40.8°F (4.9°C)	1.2°F	91st Coolest	Coolest since: 1948	1977, 1978
Sep 1948–Mar 1949 7-Month	42.0°F (5.6°C)	40.8°F (4.9°C)	1.2°F	39th Warmest	Warmest since: 1946	2017
Aug 1948–Mar 1949 8-Month	46.0°F (7.8°C)	44.9°F (7.2°C)	1.1°F	92nd Coolest	Coolest since: 1948	1977
Aug 1948–Mar 1949 8-Month	46.0°F (7.8°C)	44.9°F (7.2°C)	1.1°F	38th Warmest	Warmest since: 1946	2017
Jul 1948–Mar 1949 9-Month	49.2°F (9.6°C)	48.3°F (9.1°C)	0.9°F	87th Coolest	Coolest since: 1948	1977
Jul 1948–Mar 1949 9-Month	49.2°F (9.6°C)	48.3°F (9.1°C)	0.9°F	43rd Warmest	Warmest since: 1942	2012
Jun 1948–Mar 1949 10-Month	51.4°F (10.8°C)	50.6°F (10.3°C)	0.8°F	80th Coolest	Coolest since: 1948	1904
Jun 1948–Mar 1949 10-Month	51.4°F (10.8°C)	50.6°F (10.3°C)	0.8°F	50th Warmest	Warmest since: 1945	2012
May 1948–Mar 1949 11-Month	52.2°F (11.2°C)	51.7°F (10.9°C)	0.5°F	74th Coolest	Coolest since: 1948	1918
	52.2°F (11.2°C)	51.7°F (10.9°C)	0.5°F	56th Warmest	Warmest since: 1945	2012
	Ties: 1901
Apr 1948–Mar 1949 12-Month	52.5°F (11.4°C)	51.6°F (10.9°C)	0.9°F	87th Coolest	Coolest since: 1948	1918
Apr 1948–Mar 1949 12-Month	52.5°F (11.4°C)	51.6°F (10.9°C)	0.9°F	43rd Warmest	Warmest since: 1945	2012
Oct 1947–Mar 1949 18-Month	47.2°F (8.4°C)	46.6°F (8.1°C)	0.6°F	85th Coolest	Coolest since: 1948	1905
Oct 1947–Mar 1949 18-Month	47.2°F (8.4°C)	46.6°F (8.1°C)	0.6°F	44th Warmest	Warmest since: 1943	2017
Apr 1947–Mar 1949 24-Month	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F	76th Coolest	Coolest since: 1948	1905
Apr 1947–Mar 1949 24-Month	52.0°F (11.1°C)	51.6°F (10.9°C)	0.4°F	53rd Warmest	Warmest since: 1946	2017
Apr 1946–Mar 1949 36-Month	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F	68th Coolest	Coolest since: 1948	1979
Apr 1946–Mar 1949 36-Month	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F	60th Warmest	Warmest since: 1947	2018
Apr 1945–Mar 1949 48-Month	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F	65th Coolest	Coolest since: 1948	1980
	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F	62nd Warmest	Warmest since: 1948	2019
	Ties: 1916, 1946, 1947, 1948
Apr 1944–Mar 1949 60-Month	51.9°F (11.1°C)	51.6°F (10.9°C)	0.3°F	71st Coolest	Coolest since: 1948	1906
Apr 1944–Mar 1949 60-Month	51.9°F (11.1°C)	51.6°F (10.9°C)	0.3°F	55th Warmest	Warmest since: 1946	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2025, retrieved on March 26, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings

Climate at a Glance Statewide Rankings

Statewide Rankings

Illinois

March 1949 Average Temperature Rankings

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