Regional Rankings

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Please note, Palmer Indices are not available for NWS Regions. 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 Colorado River Basin

Average Temperature Rankings, December 1900

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 1900 1-Month	24.4°F (-4.2°C)	23.0°F (-5.0°C)	1.4°F (0.8°C)	83rd Coolest	Coolest since: 1899	1909
December 1900 1-Month	24.4°F (-4.2°C)	23.0°F (-5.0°C)	1.4°F (0.8°C)	46th Warmest	Warmest since: 1896	1980
Nov–Dec 1900 2-Month	29.1°F (-1.6°C)	27.5°F (-2.5°C)	1.6°F (0.9°C)	88th Coolest	Coolest since: 1899	1895
	29.1°F (-1.6°C)	27.5°F (-2.5°C)	1.6°F (0.9°C)	41st Warmest	Warmest to Date	2017
	Ties: 2001
Oct–Dec 1900 3-Month	34.3°F (1.3°C)	33.5°F (0.8°C)	0.8°F (0.5°C)	80th Coolest	Coolest since: 1899	1898
	34.3°F (1.3°C)	33.5°F (0.8°C)	0.8°F (0.5°C)	49th Warmest	Warmest to Date	1950, 2017
	Ties: 1906, 2006
Sep–Dec 1900 4-Month	39.0°F (3.9°C)	39.2°F (4.0°C)	-0.2°F (-0.1°C)	51st Coolest	Coolest since: 1899	1898, 1912
	39.0°F (3.9°C)	39.2°F (4.0°C)	-0.2°F (-0.1°C)	78th Warmest	Warmest to Date	2021
	Ties: 1964, 2013
Aug–Dec 1900 5-Month	43.7°F (6.5°C)	44.3°F (6.8°C)	-0.6°F (-0.3°C)	35th Coolest	Coolest since: 1899	1912
	43.7°F (6.5°C)	44.3°F (6.8°C)	-0.6°F (-0.3°C)	94th Warmest	Warmest to Date	2021
	Ties: 1914, 1948, 1957, 1970, 1975, 1984
Jul–Dec 1900 6-Month	47.5°F (8.6°C)	48.1°F (8.9°C)	-0.6°F (-0.3°C)	36th Coolest	Coolest since: 1899	1912
	47.5°F (8.6°C)	48.1°F (8.9°C)	-0.6°F (-0.3°C)	93rd Warmest	Warmest to Date	2021
	Ties: 1925, 1948, 1957
Jun–Dec 1900 7-Month	49.7°F (9.8°C)	49.9°F (9.9°C)	-0.2°F (-0.1°C)	53rd Coolest	Coolest since: 1899	1912
	49.7°F (9.8°C)	49.9°F (9.9°C)	-0.2°F (-0.1°C)	76th Warmest	Warmest to Date	2021
	Ties: 1938, 1965
May–Dec 1900 8-Month	50.1°F (10.1°C)	50.0°F (10.0°C)	0.1°F (0.1°C)	56th Coolest	Coolest since: 1899	1912
	50.1°F (10.1°C)	50.0°F (10.0°C)	0.1°F (0.1°C)	73rd Warmest	Warmest to Date	2021
	Ties: 1917, 1944, 1956, 1979, 1986
Apr–Dec 1900 9-Month	49.0°F (9.4°C)	49.1°F (9.5°C)	-0.1°F (-0.1°C)	54th Coolest	Coolest since: 1899	1912
	49.0°F (9.4°C)	49.1°F (9.5°C)	-0.1°F (-0.1°C)	75th Warmest	Warmest to Date	2021
	Ties: 1935, 1947
Mar–Dec 1900 10-Month	47.9°F (8.8°C)	47.5°F (8.6°C)	0.4°F (0.2°C)	71st Coolest	Coolest since: 1899	1912
	47.9°F (8.8°C)	47.5°F (8.6°C)	0.4°F (0.2°C)	58th Warmest	Warmest to Date	2012
	Ties: 1926, 1950, 1985, 2009
Feb–Dec 1900 11-Month	45.9°F (7.7°C)	45.5°F (7.5°C)	0.4°F (0.2°C)	77th Coolest	Coolest since: 1899	1912
	45.9°F (7.7°C)	45.5°F (7.5°C)	0.4°F (0.2°C)	52nd Warmest	Warmest to Date	2017
	Ties: 1937, 1947, 1950, 1960, 1972, 1991, 1997
Jan–Dec 1900 12-Month	44.2°F (6.8°C)	43.4°F (6.3°C)	0.8°F (0.5°C)	84th Coolest	Coolest since: 1899	1895, 1912
	44.2°F (6.8°C)	43.4°F (6.3°C)	0.8°F (0.5°C)	45th Warmest	Warmest to Date	2012
	Ties: 1946
Jul 1899–Dec 1900 18-Month	45.0°F (7.2°C)	45.0°F (7.2°C)	0.0°F (0.0°C)	54th Coolest	Coolest since: 1899	1912
	45.0°F (7.2°C)	45.0°F (7.2°C)	0.0°F (0.0°C)	74th Warmest	Warmest to Date	1934
	Ties: 1945, 1970, 1976
Jan 1899–Dec 1900 24-Month	43.0°F (6.1°C)	43.4°F (6.3°C)	-0.4°F (-0.2°C)	39th Coolest	Coolest since: 1899	1913
	43.0°F (6.1°C)	43.4°F (6.3°C)	-0.4°F (-0.2°C)	89th Warmest	Warmest to Date	2018
	Ties: 1956, 1984
Jan 1898–Dec 1900 36-Month	42.4°F (5.8°C)	43.4°F (6.3°C)	-1.0°F (-0.5°C)	15th Coolest	Coolest since: 1899	1899, 1913
	42.4°F (5.8°C)	43.4°F (6.3°C)	-1.0°F (-0.5°C)	112th Warmest	Warmest to Date	2017
	Ties: 1904, 1909, 1915, 1925, 1931, 1932
Jan 1897–Dec 1900 48-Month	42.3°F (5.7°C)	43.4°F (6.3°C)	-1.1°F (-0.6°C)	11th Coolest	Coolest since: 1899	1898
	42.3°F (5.7°C)	43.4°F (6.3°C)	-1.1°F (-0.6°C)	115th Warmest	Warmest to Date	2018
	Ties: 1906
Jan 1896–Dec 1900 60-Month	42.4°F (5.8°C)	43.4°F (6.3°C)	-1.0°F (-0.5°C)	10th Coolest	Coolest since: 1899	1899
	42.4°F (5.8°C)	43.4°F (6.3°C)	-1.0°F (-0.5°C)	115th Warmest	Warmest to Date	2018
	Ties: 1932, 1933

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published March 2023, retrieved on March 26, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings