Regional Rankings

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Month:

Region:

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, April 1938

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2023)	Warmest/Coolest Since	Record
April 1938 1-Month	42.4°F (5.8°C)	41.7°F (5.4°C)	0.7°F (0.4°C)	71st Coolest	Coolest since: 1937	1920
	42.4°F (5.8°C)	41.7°F (5.4°C)	0.7°F (0.4°C)	59th Warmest	Warmest since: 1936	1992
	Ties: 1899, 1902, 1913, 1916, 1948, 2014
Mar–Apr 1938 2-Month	37.6°F (3.1°C)	37.3°F (2.9°C)	0.3°F (0.2°C)	63rd Coolest	Coolest since: 1937	1917
Mar–Apr 1938 2-Month	37.6°F (3.1°C)	37.3°F (2.9°C)	0.3°F (0.2°C)	67th Warmest	Warmest since: 1936	1934, 1992
Feb–Apr 1938 3-Month	34.1°F (1.2°C)	33.4°F (0.8°C)	0.7°F (0.4°C)	78th Coolest	Coolest since: 1937	1903
	34.1°F (1.2°C)	33.4°F (0.8°C)	0.7°F (0.4°C)	52nd Warmest	Warmest since: 1936	1934
	Ties: 1936, 1991, 2022
Jan–Apr 1938 4-Month	31.8°F (-0.1°C)	30.3°F (-0.9°C)	1.5°F (0.8°C)	92nd Coolest	Coolest since: 1937	1917
	31.8°F (-0.1°C)	30.3°F (-0.9°C)	1.5°F (0.8°C)	38th Warmest	Warmest since: 1934	1934
	Ties: 1921, 2022
Dec 1937–Apr 1938 5-Month	30.7°F (-0.7°C)	28.8°F (-1.8°C)	1.9°F (1.1°C)	97th Coolest	Coolest since: 1937	1917
	30.7°F (-0.7°C)	28.8°F (-1.8°C)	1.9°F (1.1°C)	32nd Warmest	Warmest since: 1934	1934
	Ties: 1972
Nov 1937–Apr 1938 6-Month	31.4°F (-0.3°C)	29.4°F (-1.4°C)	2.0°F (1.1°C)	102nd Coolest	Coolest since: 1937	1917
	31.4°F (-0.3°C)	29.4°F (-1.4°C)	2.0°F (1.1°C)	27th Warmest	Warmest since: 1934	1934
	Ties: 1959
Oct 1937–Apr 1938 7-Month	33.6°F (0.9°C)	31.7°F (-0.2°C)	1.9°F (1.1°C)	100th Coolest	Coolest since: 1937	1917
	33.6°F (0.9°C)	31.7°F (-0.2°C)	1.9°F (1.1°C)	29th Warmest	Warmest since: 1934	1934
	Ties: 1959
Sep 1937–Apr 1938 8-Month	36.7°F (2.6°C)	34.8°F (1.6°C)	1.9°F (1.0°C)	105th Coolest	Coolest since: 1937	1917
	36.7°F (2.6°C)	34.8°F (1.6°C)	1.9°F (1.0°C)	24th Warmest	Warmest since: 1934	1934
	Ties: 1959, 1992, 1995, 2003
Aug 1937–Apr 1938 9-Month	40.0°F (4.4°C)	38.1°F (3.4°C)	1.9°F (1.0°C)	105th Coolest	Coolest since: 1937	1917
	40.0°F (4.4°C)	38.1°F (3.4°C)	1.9°F (1.0°C)	24th Warmest	Warmest since: 1934	1934
	Ties: 1992, 2003, 2006
Jul 1937–Apr 1938 10-Month	42.7°F (5.9°C)	41.0°F (5.0°C)	1.7°F (0.9°C)	103rd Coolest	Coolest since: 1937	1917
	42.7°F (5.9°C)	41.0°F (5.0°C)	1.7°F (0.9°C)	26th Warmest	Warmest since: 1934	1934
	Ties: 1986, 1992
Jun 1937–Apr 1938 11-Month	44.2°F (6.8°C)	42.7°F (5.9°C)	1.5°F (0.9°C)	94th Coolest	Coolest since: 1937	1917
Jun 1937–Apr 1938 11-Month	44.2°F (6.8°C)	42.7°F (5.9°C)	1.5°F (0.9°C)	35th Warmest	Warmest since: 1934	1934
May 1937–Apr 1938 12-Month	45.0°F (7.2°C)	43.4°F (6.3°C)	1.6°F (0.9°C)	97th Coolest	Coolest since: 1937	1917
	45.0°F (7.2°C)	43.4°F (6.3°C)	1.6°F (0.9°C)	32nd Warmest	Warmest since: 1935	1934, 2015, 2018
	Ties: 1911
Nov 1936–Apr 1938 18-Month	38.7°F (3.7°C)	38.7°F (3.7°C)	0.0°F (0.0°C)	51st Coolest	Coolest since: 1937	1913
	38.7°F (3.7°C)	38.7°F (3.7°C)	0.0°F (0.0°C)	77th Warmest	Warmest since: 1936	2018
	Ties: 1948, 1963, 1979
May 1936–Apr 1938 24-Month	43.8°F (6.6°C)	43.4°F (6.3°C)	0.4°F (0.3°C)	74th Coolest	Coolest since: 1937	1913
	43.8°F (6.6°C)	43.4°F (6.3°C)	0.4°F (0.3°C)	54th Warmest	Warmest since: 1936	2018
	Ties: 1902, 1927, 1939, 1944, 1957, 1979
May 1935–Apr 1938 36-Month	43.8°F (6.6°C)	43.4°F (6.3°C)	0.4°F (0.3°C)	74th Coolest	Coolest since: 1937	1914
	43.8°F (6.6°C)	43.4°F (6.3°C)	0.4°F (0.3°C)	53rd Warmest	Warmest since: 1937	2017, 2018, 2019
	Ties: 1937, 1945, 1963, 1979, 1980
May 1934–Apr 1938 48-Month	44.1°F (6.7°C)	43.4°F (6.3°C)	0.7°F (0.4°C)	85th Coolest	Coolest since: 1935	1899, 1915
	44.1°F (6.7°C)	43.4°F (6.3°C)	0.7°F (0.4°C)	41st Warmest	Warmest since: 1937	2018
	Ties: 1961, 1982, 1984
May 1933–Apr 1938 60-Month	44.7°F (7.1°C)	43.4°F (6.3°C)	1.3°F (0.8°C)	101st Coolest	Coolest since: 1937	1917
	44.7°F (7.1°C)	43.4°F (6.3°C)	1.3°F (0.8°C)	24th Warmest	Warmest to Date	2018, 2019
	Ties: 1990, 1998, 2012

Citing This Page

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