Regional Rankings

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Please note, Palmer Indices are not available for NWS Regions. 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 1950

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
December 1950 1-Month	29.2°F (-1.6°C)	23.0°F (-5.0°C)	6.2°F (3.4°C)	124th Coolest	Coolest since: 1949	1909
	29.2°F (-1.6°C)	23.0°F (-5.0°C)	6.2°F (3.4°C)	5th Warmest	Warmest since: 1939	1980
	Ties: 2017
Nov–Dec 1950 2-Month	31.9°F (-0.1°C)	27.5°F (-2.5°C)	4.4°F (2.4°C)	121st Coolest	Coolest since: 1949	1895
Nov–Dec 1950 2-Month	31.9°F (-0.1°C)	27.5°F (-2.5°C)	4.4°F (2.4°C)	8th Warmest	Warmest since: 1939	2017
Oct–Dec 1950 3-Month	38.1°F (3.4°C)	33.5°F (0.8°C)	4.6°F (2.6°C)	128th Coolest	Coolest since: 1949	1898
	38.1°F (3.4°C)	33.5°F (0.8°C)	4.6°F (2.6°C)	1st Warmest	Warmest to Date	1950, 2017
	Ties: 2017
Sep–Dec 1950 4-Month	42.5°F (5.8°C)	39.2°F (4.0°C)	3.3°F (1.8°C)	125th Coolest	Coolest since: 1949	1898, 1912
	42.5°F (5.8°C)	39.2°F (4.0°C)	3.3°F (1.8°C)	4th Warmest	Warmest since: 1933	2021
	Ties: 2014, 2016
Aug–Dec 1950 5-Month	46.5°F (8.1°C)	44.3°F (6.8°C)	2.2°F (1.3°C)	111th Coolest	Coolest since: 1949	1912
	46.5°F (8.1°C)	44.3°F (6.8°C)	2.2°F (1.3°C)	18th Warmest	Warmest since: 1939	2021
	Ties: 1937, 1962, 1998, 1999
Jul–Dec 1950 6-Month	49.5°F (9.7°C)	48.1°F (8.9°C)	1.4°F (0.8°C)	96th Coolest	Coolest since: 1949	1912
	49.5°F (9.7°C)	48.1°F (8.9°C)	1.4°F (0.8°C)	33rd Warmest	Warmest since: 1939	2021
	Ties: 1989, 2011, 2019
Jun–Dec 1950 7-Month	50.9°F (10.5°C)	49.9°F (9.9°C)	1.0°F (0.6°C)	86th Coolest	Coolest since: 1949	1912
	50.9°F (10.5°C)	49.9°F (9.9°C)	1.0°F (0.6°C)	43rd Warmest	Warmest since: 1940	2021
	Ties: 1936, 1960, 2000
May–Dec 1950 8-Month	50.5°F (10.3°C)	50.0°F (10.0°C)	0.5°F (0.3°C)	74th Coolest	Coolest since: 1949	1912
	50.5°F (10.3°C)	50.0°F (10.0°C)	0.5°F (0.3°C)	55th Warmest	Warmest since: 1943	2021
	Ties: 1953, 1969, 2019
Apr–Dec 1950 9-Month	49.6°F (9.8°C)	49.1°F (9.5°C)	0.5°F (0.3°C)	73rd Coolest	Coolest since: 1948	1912
	49.6°F (9.8°C)	49.1°F (9.5°C)	0.5°F (0.3°C)	56th Warmest	Warmest since: 1949	2021
	Ties: 1985, 2011
Mar–Dec 1950 10-Month	47.9°F (8.8°C)	47.5°F (8.6°C)	0.4°F (0.2°C)	71st Coolest	Coolest since: 1948	1912
	47.9°F (8.8°C)	47.5°F (8.6°C)	0.4°F (0.2°C)	58th Warmest	Warmest since: 1949	2012
	Ties: 1900, 1926, 1985, 2009
Feb–Dec 1950 11-Month	45.9°F (7.7°C)	45.5°F (7.5°C)	0.4°F (0.2°C)	77th Coolest	Coolest since: 1949	1912
	45.9°F (7.7°C)	45.5°F (7.5°C)	0.4°F (0.2°C)	52nd Warmest	Warmest since: 1947	2017
	Ties: 1900, 1937, 1947, 1960, 1972, 1991, 1997
Jan–Dec 1950 12-Month	43.7°F (6.5°C)	43.4°F (6.3°C)	0.3°F (0.2°C)	68th Coolest	Coolest since: 1949	1895, 1912
	43.7°F (6.5°C)	43.4°F (6.3°C)	0.3°F (0.2°C)	61st Warmest	Warmest since: 1947	2012
	Ties: 1938, 1947, 1956, 1960, 2008
Jul 1949–Dec 1950 18-Month	45.4°F (7.4°C)	45.0°F (7.2°C)	0.4°F (0.2°C)	76th Coolest	Coolest since: 1949	1912
	45.4°F (7.4°C)	45.0°F (7.2°C)	0.4°F (0.2°C)	52nd Warmest	Warmest since: 1946	1934
	Ties: 1910, 1946, 1967
Jan 1949–Dec 1950 24-Month	43.1°F (6.2°C)	43.4°F (6.3°C)	-0.3°F (-0.1°C)	43rd Coolest	Coolest since: 1949	1913
	43.1°F (6.2°C)	43.4°F (6.3°C)	-0.3°F (-0.1°C)	85th Warmest	Warmest since: 1948	2018
	Ties: 1928, 1942, 1948, 1979
Jan 1948–Dec 1950 36-Month	43.0°F (6.1°C)	43.5°F (6.4°C)	-0.5°F (-0.3°C)	37th Coolest	Coolest since: 1949	1899, 1913
	43.0°F (6.1°C)	43.5°F (6.4°C)	-0.5°F (-0.3°C)	90th Warmest	Warmest since: 1948	2017
	Ties: 1907, 1922, 1923, 1926, 1957, 1970, 1974
Jan 1947–Dec 1950 48-Month	43.1°F (6.2°C)	43.4°F (6.3°C)	-0.3°F (-0.1°C)	42nd Coolest	Coolest since: 1933	1898
	43.1°F (6.2°C)	43.4°F (6.3°C)	-0.3°F (-0.1°C)	84th Warmest	Warmest since: 1949	2018
	Ties: 1907, 1927, 1968
Jan 1946–Dec 1950 60-Month	43.4°F (6.3°C)	43.4°F (6.3°C)	0.0°F (0.0°C)	52nd Coolest	Coolest since: 1949	1899
	43.4°F (6.3°C)	43.4°F (6.3°C)	0.0°F (0.0°C)	73rd Warmest	Warmest since: 1947	2018
	Ties: 1965, 1967, 1979

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 8, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings