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 1961

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
April 1961 1-Month	40.8°F (4.9°C)	41.7°F (5.4°C)	-0.9°F (-0.5°C)	42nd Coolest	Coolest since: 1958	1920
	40.8°F (4.9°C)	41.7°F (5.4°C)	-0.9°F (-0.5°C)	87th Warmest	Warmest since: 1960	1992
	Ties: 1901, 1963, 1980
Mar–Apr 1961 2-Month	37.2°F (2.9°C)	37.2°F (2.9°C)	0.0°F (0.0°C)	56th Coolest	Coolest since: 1958	1917
	37.2°F (2.9°C)	37.2°F (2.9°C)	0.0°F (0.0°C)	73rd Warmest	Warmest since: 1960	1934, 1992
	Ties: 1956
Feb–Apr 1961 3-Month	34.6°F (1.4°C)	33.3°F (0.7°C)	1.3°F (0.7°C)	85th Coolest	Coolest since: 1960	1903
	34.6°F (1.4°C)	33.3°F (0.7°C)	1.3°F (0.7°C)	44th Warmest	Warmest since: 1954	1934
	Ties: 1915
Jan–Apr 1961 4-Month	31.6°F (-0.2°C)	30.3°F (-0.9°C)	1.3°F (0.7°C)	88th Coolest	Coolest since: 1960	1917
	31.6°F (-0.2°C)	30.3°F (-0.9°C)	1.3°F (0.7°C)	41st Warmest	Warmest since: 1954	1934
	Ties: 1926, 1967, 1983, 1989
Dec 1960–Apr 1961 5-Month	29.8°F (-1.2°C)	28.8°F (-1.8°C)	1.0°F (0.6°C)	81st Coolest	Coolest since: 1960	1917
	29.8°F (-1.2°C)	28.8°F (-1.8°C)	1.0°F (0.6°C)	47th Warmest	Warmest since: 1959	1934
	Ties: 1980, 1989, 2011
Nov 1960–Apr 1961 6-Month	30.4°F (-0.9°C)	29.4°F (-1.4°C)	1.0°F (0.5°C)	84th Coolest	Coolest since: 1960	1917
	30.4°F (-0.9°C)	29.4°F (-1.4°C)	1.0°F (0.5°C)	44th Warmest	Warmest since: 1959	1934
	Ties: 1926, 1972, 1997, 2002
Oct 1960–Apr 1961 7-Month	32.5°F (0.3°C)	31.7°F (-0.2°C)	0.8°F (0.5°C)	83rd Coolest	Coolest since: 1960	1917
	32.5°F (0.3°C)	31.7°F (-0.2°C)	0.8°F (0.5°C)	45th Warmest	Warmest since: 1959	1934
	Ties: 1956, 1998, 2020
Sep 1960–Apr 1961 8-Month	35.9°F (2.2°C)	34.8°F (1.6°C)	1.1°F (0.6°C)	89th Coolest	Coolest since: 1960	1917
Sep 1960–Apr 1961 8-Month	35.9°F (2.2°C)	34.8°F (1.6°C)	1.1°F (0.6°C)	39th Warmest	Warmest since: 1959	1934
Aug 1960–Apr 1961 9-Month	39.1°F (3.9°C)	38.0°F (3.3°C)	1.1°F (0.6°C)	87th Coolest	Coolest since: 1960	1917
	39.1°F (3.9°C)	38.0°F (3.3°C)	1.1°F (0.6°C)	41st Warmest	Warmest since: 1959	1934
	Ties: 1956, 1967, 1982, 2019
Jul 1960–Apr 1961 10-Month	42.1°F (5.6°C)	41.0°F (5.0°C)	1.1°F (0.6°C)	88th Coolest	Coolest since: 1960	1917
Jul 1960–Apr 1961 10-Month	42.1°F (5.6°C)	41.0°F (5.0°C)	1.1°F (0.6°C)	40th Warmest	Warmest since: 1959	1934
Jun 1960–Apr 1961 11-Month	43.9°F (6.6°C)	42.7°F (5.9°C)	1.2°F (0.7°C)	89th Coolest	Coolest since: 1960	1917
	43.9°F (6.6°C)	42.7°F (5.9°C)	1.2°F (0.7°C)	39th Warmest	Warmest since: 1959	1934
	Ties: 1907, 1982
May 1960–Apr 1961 12-Month	44.5°F (6.9°C)	43.4°F (6.3°C)	1.1°F (0.6°C)	89th Coolest	Coolest since: 1960	1917
	44.5°F (6.9°C)	43.4°F (6.3°C)	1.1°F (0.6°C)	39th Warmest	Warmest since: 1959	1934, 2015, 2018
	Ties: 1967, 1982
Nov 1959–Apr 1961 18-Month	39.4°F (4.1°C)	38.7°F (3.7°C)	0.7°F (0.4°C)	81st Coolest	Coolest since: 1958	1913
	39.4°F (4.1°C)	38.7°F (3.7°C)	0.7°F (0.4°C)	46th Warmest	Warmest since: 1960	2018
	Ties: 1902, 1927, 1936, 1944, 1955, 1992, 2011
May 1959–Apr 1961 24-Month	44.0°F (6.7°C)	43.4°F (6.3°C)	0.6°F (0.4°C)	83rd Coolest	Coolest since: 1958	1913
	44.0°F (6.7°C)	43.4°F (6.3°C)	0.6°F (0.4°C)	44th Warmest	Warmest since: 1960	2018
	Ties: 1934, 1940, 1955, 1983, 2011
May 1958–Apr 1961 36-Month	44.5°F (6.9°C)	43.4°F (6.3°C)	1.1°F (0.6°C)	95th Coolest	Coolest since: 1960	1914
	44.5°F (6.9°C)	43.4°F (6.3°C)	1.1°F (0.6°C)	31st Warmest	Warmest since: 1936	2017, 2018, 2019
	Ties: 2010, 2011, 2012
May 1957–Apr 1961 48-Month	44.1°F (6.7°C)	43.4°F (6.3°C)	0.7°F (0.4°C)	85th Coolest	Coolest since: 1960	1899, 1915
	44.1°F (6.7°C)	43.4°F (6.3°C)	0.7°F (0.4°C)	40th Warmest	Warmest since: 1943	2018
	Ties: 1938, 1982, 1984
May 1956–Apr 1961 60-Month	44.0°F (6.7°C)	43.4°F (6.3°C)	0.6°F (0.4°C)	86th Coolest	Coolest since: 1960	1917
	44.0°F (6.7°C)	43.4°F (6.3°C)	0.6°F (0.4°C)	38th Warmest	Warmest since: 1944	2018, 2019
	Ties: 1941, 1942, 1944, 1963, 1984

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on January 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings