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

Regional Rankings

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Please note, Degree Days are not available for Great Plains, Souther Plains and Gulf Coast, Rockies and Westward, River Basins, or Agricultural Belts. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Upper Midwest

December 1940 Average Temperature Rankings

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Coolest/Warmest Since	Record
December 1940 1-Month	21.6°F (-5.8°C)	18.6°F (-7.4°C)	3.0°F	86th Coolest	Coolest since: 1938	1983
	21.6°F (-5.8°C)	18.6°F (-7.4°C)	3.0°F	45th Warmest	Warmest since: 1939	2023
	Ties: 1936
Nov–Dec 1940 2-Month	25.0°F (-3.9°C)	25.3°F (-3.7°C)	-0.3°F	50th Coolest	Coolest since: 1937	1985
Nov–Dec 1940 2-Month	25.0°F (-3.9°C)	25.3°F (-3.7°C)	-0.3°F	81st Warmest	Warmest since: 1939	2001
Oct–Dec 1940 3-Month	33.5°F (0.8°C)	32.7°F (0.4°C)	0.8°F	71st Coolest	Coolest since: 1937	1976
Oct–Dec 1940 3-Month	33.5°F (0.8°C)	32.7°F (0.4°C)	0.8°F	60th Warmest	Warmest since: 1939	2015
Sep–Dec 1940 4-Month	40.4°F (4.7°C)	39.2°F (4.0°C)	1.2°F	84th Coolest	Coolest since: 1937	1976
Sep–Dec 1940 4-Month	40.4°F (4.7°C)	39.2°F (4.0°C)	1.2°F	47th Warmest	Warmest since: 1939	2015
Aug–Dec 1940 5-Month	45.6°F (7.6°C)	44.8°F (7.1°C)	0.8°F	76th Coolest	Coolest since: 1937	1917
Aug–Dec 1940 5-Month	45.6°F (7.6°C)	44.8°F (7.1°C)	0.8°F	55th Warmest	Warmest since: 1939	2015
Jul–Dec 1940 6-Month	49.8°F (9.9°C)	49.0°F (9.4°C)	0.8°F	83rd Coolest	Coolest since: 1937	1917
Jul–Dec 1940 6-Month	49.8°F (9.9°C)	49.0°F (9.4°C)	0.8°F	48th Warmest	Warmest since: 1939	1931
Jun–Dec 1940 7-Month	52.0°F (11.1°C)	51.3°F (10.7°C)	0.7°F	80th Coolest	Coolest since: 1937	1917
Jun–Dec 1940 7-Month	52.0°F (11.1°C)	51.3°F (10.7°C)	0.7°F	51st Warmest	Warmest since: 1939	1931
May–Dec 1940 8-Month	52.1°F (11.2°C)	51.8°F (11.0°C)	0.3°F	67th Coolest	Coolest since: 1937	1917
May–Dec 1940 8-Month	52.1°F (11.2°C)	51.8°F (11.0°C)	0.3°F	64th Warmest	Warmest since: 1939	1931, 2023
Apr–Dec 1940 9-Month	50.8°F (10.4°C)	50.8°F (10.4°C)	0.0°F	52nd Coolest	Coolest since: 1937	1917
Apr–Dec 1940 9-Month	50.8°F (10.4°C)	50.8°F (10.4°C)	0.0°F	79th Warmest	Warmest since: 1939	1931
Mar–Dec 1940 10-Month	48.1°F (8.9°C)	48.6°F (9.2°C)	-0.5°F	38th Coolest	Coolest since: 1937	1917
	48.1°F (8.9°C)	48.6°F (9.2°C)	-0.5°F	93rd Warmest	Warmest since: 1939	2012, 2021
	Ties: 1937
Feb–Dec 1940 11-Month	45.4°F (7.4°C)	45.8°F (7.7°C)	-0.4°F	48th Coolest	Coolest since: 1937	1917
Feb–Dec 1940 11-Month	45.4°F (7.4°C)	45.8°F (7.7°C)	-0.4°F	83rd Warmest	Warmest since: 1939	2024
Jan–Dec 1940 12-Month	42.2°F (5.7°C)	43.0°F (6.1°C)	-0.8°F	33rd Coolest	Coolest since: 1937	1917
Jan–Dec 1940 12-Month	42.2°F (5.7°C)	43.0°F (6.1°C)	-0.8°F	98th Warmest	Warmest since: 1939	2024
Jul 1939–Dec 1940 18-Month	45.3°F (7.4°C)	45.0°F (7.2°C)	0.3°F	72nd Coolest	Coolest since: 1937	1917
Jul 1939–Dec 1940 18-Month	45.3°F (7.4°C)	45.0°F (7.2°C)	0.3°F	58th Warmest	Warmest since: 1939	2024
Jan 1939–Dec 1940 24-Month	43.4°F (6.3°C)	43.0°F (6.1°C)	0.4°F	83rd Coolest	Coolest since: 1938	1917
Jan 1939–Dec 1940 24-Month	43.4°F (6.3°C)	43.0°F (6.1°C)	0.4°F	47th Warmest	Warmest since: 1939	2024
Jan 1938–Dec 1940 36-Month	43.8°F (6.6°C)	43.0°F (6.1°C)	0.8°F	91st Coolest	Coolest since: 1939	1917
Jan 1938–Dec 1940 36-Month	43.8°F (6.6°C)	43.0°F (6.1°C)	0.8°F	38th Warmest	Warmest since: 1933	2012, 2024
Jan 1937–Dec 1940 48-Month	43.4°F (6.3°C)	43.0°F (6.1°C)	0.4°F	77th Coolest	Coolest since: 1939	1917, 1918, 1919
Jan 1937–Dec 1940 48-Month	43.4°F (6.3°C)	43.0°F (6.1°C)	0.4°F	51st Warmest	Warmest since: 1935	2024
Jan 1936–Dec 1940 60-Month	43.0°F (6.1°C)	43.0°F (6.1°C)	0.0°F	55th Coolest	Coolest since: 1938	1907
Jan 1936–Dec 1940 60-Month	43.0°F (6.1°C)	43.0°F (6.1°C)	0.0°F	72nd Warmest	Warmest since: 1939	2024

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published March 2025, retrieved on March 31, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings

Climate at a Glance Regional Rankings

Regional Rankings

Upper Midwest

December 1940 Average Temperature Rankings

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