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, April 1983

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
April 1983 1-Month	36.8°F (2.7°C)	41.7°F (5.4°C)	-4.9°F (-2.7°C)	4th Coolest	Coolest since: 1975	1920
April 1983 1-Month	36.8°F (2.7°C)	41.7°F (5.4°C)	-4.9°F (-2.7°C)	125th Warmest	Warmest since: 1982	1992
Mar–Apr 1983 2-Month	35.7°F (2.1°C)	37.2°F (2.9°C)	-1.5°F (-0.8°C)	28th Coolest	Coolest since: 1975	1917
Mar–Apr 1983 2-Month	35.7°F (2.1°C)	37.2°F (2.9°C)	-1.5°F (-0.8°C)	101st Warmest	Warmest since: 1982	1934, 1992
Feb–Apr 1983 3-Month	33.4°F (0.8°C)	33.4°F (0.8°C)	0.0°F (0.0°C)	55th Coolest	Coolest since: 1982	1903
	33.4°F (0.8°C)	33.4°F (0.8°C)	0.0°F (0.0°C)	74th Warmest	Warmest since: 1981	1934
	Ties: 1902, 1905, 1980, 2013
Jan–Apr 1983 4-Month	31.6°F (-0.2°C)	30.3°F (-0.9°C)	1.3°F (0.7°C)	88th Coolest	Coolest since: 1982	1917
	31.6°F (-0.2°C)	30.3°F (-0.9°C)	1.3°F (0.7°C)	41st Warmest	Warmest since: 1981	1934
	Ties: 1926, 1961, 1967, 1989
Dec 1982–Apr 1983 5-Month	30.0°F (-1.1°C)	28.8°F (-1.8°C)	1.2°F (0.7°C)	84th Coolest	Coolest since: 1982	1917
	30.0°F (-1.1°C)	28.8°F (-1.8°C)	1.2°F (0.7°C)	44th Warmest	Warmest since: 1981	1934
	Ties: 1918
Nov 1982–Apr 1983 6-Month	30.0°F (-1.1°C)	29.4°F (-1.4°C)	0.6°F (0.3°C)	70th Coolest	Coolest since: 1980	1917
	30.0°F (-1.1°C)	29.4°F (-1.4°C)	0.6°F (0.3°C)	58th Warmest	Warmest since: 1982	1934
	Ties: 1904, 1905, 1928, 1945, 1970, 2013
Oct 1982–Apr 1983 7-Month	31.7°F (-0.2°C)	31.6°F (-0.2°C)	0.1°F (0.0°C)	52nd Coolest	Coolest since: 1979	1917
	31.7°F (-0.2°C)	31.6°F (-0.2°C)	0.1°F (0.0°C)	76th Warmest	Warmest since: 1982	1934
	Ties: 1921, 1971, 1976
Sep 1982–Apr 1983 8-Month	34.8°F (1.6°C)	34.7°F (1.5°C)	0.1°F (0.1°C)	56th Coolest	Coolest since: 1979	1917
	34.8°F (1.6°C)	34.7°F (1.5°C)	0.1°F (0.1°C)	72nd Warmest	Warmest since: 1982	1934
	Ties: 1904, 1970, 1972, 1993, 2010
Aug 1982–Apr 1983 9-Month	38.4°F (3.6°C)	38.1°F (3.4°C)	0.3°F (0.2°C)	66th Coolest	Coolest since: 1979	1917
	38.4°F (3.6°C)	38.1°F (3.4°C)	0.3°F (0.2°C)	62nd Warmest	Warmest since: 1982	1934
	Ties: 1970, 1972
Jul 1982–Apr 1983 10-Month	41.2°F (5.1°C)	41.0°F (5.0°C)	0.2°F (0.1°C)	64th Coolest	Coolest since: 1979	1917
	41.2°F (5.1°C)	41.0°F (5.0°C)	0.2°F (0.1°C)	64th Warmest	Warmest since: 1982	1934
	Ties: 1927, 1950, 1994, 2010
Jun 1982–Apr 1983 11-Month	42.8°F (6.0°C)	42.7°F (5.9°C)	0.1°F (0.1°C)	61st Coolest	Coolest since: 1979	1917
	42.8°F (6.0°C)	42.7°F (5.9°C)	0.1°F (0.1°C)	67th Warmest	Warmest since: 1982	1934
	Ties: 1950, 1970, 1994
May 1982–Apr 1983 12-Month	43.4°F (6.3°C)	43.4°F (6.3°C)	0.0°F (0.0°C)	53rd Coolest	Coolest since: 1979	1917
	43.4°F (6.3°C)	43.4°F (6.3°C)	0.0°F (0.0°C)	75th Warmest	Warmest since: 1982	1934, 2015, 2018
	Ties: 1901, 1918, 1971
Nov 1981–Apr 1983 18-Month	39.1°F (3.9°C)	38.7°F (3.7°C)	0.4°F (0.2°C)	63rd Coolest	Coolest since: 1980	1913
	39.1°F (3.9°C)	38.7°F (3.7°C)	0.4°F (0.2°C)	64th Warmest	Warmest since: 1982	2018
	Ties: 1907
May 1981–Apr 1983 24-Month	44.0°F (6.7°C)	43.5°F (6.4°C)	0.5°F (0.3°C)	83rd Coolest	Coolest since: 1980	1913
	44.0°F (6.7°C)	43.5°F (6.4°C)	0.5°F (0.3°C)	44th Warmest	Warmest since: 1982	2018
	Ties: 1934, 1940, 1955, 1961, 2011
May 1980–Apr 1983 36-Month	44.7°F (7.1°C)	43.4°F (6.3°C)	1.3°F (0.8°C)	100th Coolest	Coolest since: 1981	1914
	44.7°F (7.1°C)	43.4°F (6.3°C)	1.3°F (0.8°C)	26th Warmest	Warmest since: 1982	2017, 2018, 2019
	Ties: 1990, 1991, 1992
May 1979–Apr 1983 48-Month	44.5°F (6.9°C)	43.4°F (6.3°C)	1.1°F (0.6°C)	97th Coolest	Coolest since: 1982	1899, 1915
	44.5°F (6.9°C)	43.4°F (6.3°C)	1.1°F (0.6°C)	28th Warmest	Warmest since: 1937	2018
	Ties: 1989, 1990, 1991, 1995, 1996, 2011
May 1978–Apr 1983 60-Month	43.9°F (6.6°C)	43.3°F (6.3°C)	0.6°F (0.3°C)	80th Coolest	Coolest since: 1980	1917
	43.9°F (6.6°C)	43.3°F (6.3°C)	0.6°F (0.3°C)	44th Warmest	Warmest since: 1982	2018, 2019
	Ties: 1937, 1943, 1957, 1960, 1985

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings