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 1917

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
April 1917 1-Month	36.9°F (2.7°C)	41.7°F (5.4°C)	-4.8°F (-2.7°C)	5th Coolest	Coolest since: 1917	1920
April 1917 1-Month	36.9°F (2.7°C)	41.7°F (5.4°C)	-4.8°F (-2.7°C)	124th Warmest	Warmest since: 1916	1992
Mar–Apr 1917 2-Month	30.5°F (-0.8°C)	37.2°F (2.9°C)	-6.7°F (-3.7°C)	1st Coolest	Coolest since: 1917	1917
Mar–Apr 1917 2-Month	30.5°F (-0.8°C)	37.2°F (2.9°C)	-6.7°F (-3.7°C)	128th Warmest	Warmest since: 1916	1934, 1992
Feb–Apr 1917 3-Month	27.8°F (-2.3°C)	33.4°F (0.8°C)	-5.6°F (-3.1°C)	2nd Coolest	Coolest since: 1903	1903
Feb–Apr 1917 3-Month	27.8°F (-2.3°C)	33.4°F (0.8°C)	-5.6°F (-3.1°C)	127th Warmest	Warmest since: 1916	1934
Jan–Apr 1917 4-Month	24.3°F (-4.3°C)	30.3°F (-0.9°C)	-6.0°F (-3.4°C)	1st Coolest	Coolest since: 1917	1917
Jan–Apr 1917 4-Month	24.3°F (-4.3°C)	30.3°F (-0.9°C)	-6.0°F (-3.4°C)	128th Warmest	Warmest since: 1916	1934
Dec 1916–Apr 1917 5-Month	23.2°F (-4.9°C)	28.8°F (-1.8°C)	-5.6°F (-3.1°C)	1st Coolest	Coolest since: 1917	1917
Dec 1916–Apr 1917 5-Month	23.2°F (-4.9°C)	28.8°F (-1.8°C)	-5.6°F (-3.1°C)	127th Warmest	Warmest since: 1916	1934
Nov 1916–Apr 1917 6-Month	24.1°F (-4.4°C)	29.4°F (-1.4°C)	-5.3°F (-3.0°C)	1st Coolest	Coolest since: 1917	1917
Nov 1916–Apr 1917 6-Month	24.1°F (-4.4°C)	29.4°F (-1.4°C)	-5.3°F (-3.0°C)	127th Warmest	Warmest since: 1916	1934
Oct 1916–Apr 1917 7-Month	26.8°F (-2.9°C)	31.6°F (-0.2°C)	-4.8°F (-2.7°C)	1st Coolest	Coolest since: 1917	1917
Oct 1916–Apr 1917 7-Month	26.8°F (-2.9°C)	31.6°F (-0.2°C)	-4.8°F (-2.7°C)	127th Warmest	Warmest since: 1916	1934
Sep 1916–Apr 1917 8-Month	30.2°F (-1.0°C)	34.7°F (1.5°C)	-4.5°F (-2.5°C)	1st Coolest	Coolest since: 1917	1917
Sep 1916–Apr 1917 8-Month	30.2°F (-1.0°C)	34.7°F (1.5°C)	-4.5°F (-2.5°C)	127th Warmest	Warmest since: 1916	1934
Aug 1916–Apr 1917 9-Month	33.8°F (1.0°C)	38.1°F (3.4°C)	-4.3°F (-2.4°C)	1st Coolest	Coolest since: 1917	1917
Aug 1916–Apr 1917 9-Month	33.8°F (1.0°C)	38.1°F (3.4°C)	-4.3°F (-2.4°C)	127th Warmest	Warmest since: 1916	1934
Jul 1916–Apr 1917 10-Month	37.0°F (2.8°C)	41.0°F (5.0°C)	-4.0°F (-2.2°C)	1st Coolest	Coolest since: 1917	1917
Jul 1916–Apr 1917 10-Month	37.0°F (2.8°C)	41.0°F (5.0°C)	-4.0°F (-2.2°C)	127th Warmest	Warmest since: 1916	1934
Jun 1916–Apr 1917 11-Month	38.9°F (3.8°C)	42.7°F (5.9°C)	-3.8°F (-2.1°C)	1st Coolest	Coolest since: 1917	1917
Jun 1916–Apr 1917 11-Month	38.9°F (3.8°C)	42.7°F (5.9°C)	-3.8°F (-2.1°C)	127th Warmest	Warmest since: 1916	1934
May 1916–Apr 1917 12-Month	39.6°F (4.2°C)	43.4°F (6.3°C)	-3.8°F (-2.1°C)	1st Coolest	Coolest since: 1917	1917
May 1916–Apr 1917 12-Month	39.6°F (4.2°C)	43.4°F (6.3°C)	-3.8°F (-2.1°C)	127th Warmest	Warmest since: 1916	1934, 2015, 2018
Nov 1915–Apr 1917 18-Month	36.2°F (2.3°C)	38.7°F (3.7°C)	-2.5°F (-1.4°C)	3rd Coolest	Coolest since: 1913	1913
Nov 1915–Apr 1917 18-Month	36.2°F (2.3°C)	38.7°F (3.7°C)	-2.5°F (-1.4°C)	124th Warmest	Warmest since: 1916	2018
May 1915–Apr 1917 24-Month	41.1°F (5.1°C)	43.5°F (6.4°C)	-2.4°F (-1.3°C)	2nd Coolest	Coolest since: 1913	1913
May 1915–Apr 1917 24-Month	41.1°F (5.1°C)	43.5°F (6.4°C)	-2.4°F (-1.3°C)	125th Warmest	Warmest since: 1916	2018
May 1914–Apr 1917 36-Month	41.7°F (5.4°C)	43.4°F (6.3°C)	-1.7°F (-0.9°C)	2nd Coolest	Coolest since: 1914	1914
May 1914–Apr 1917 36-Month	41.7°F (5.4°C)	43.4°F (6.3°C)	-1.7°F (-0.9°C)	124th Warmest	Warmest since: 1916	2017, 2018, 2019
May 1913–Apr 1917 48-Month	41.9°F (5.5°C)	43.3°F (6.3°C)	-1.4°F (-0.8°C)	3rd Coolest	Coolest since: 1915	1899, 1915
	41.9°F (5.5°C)	43.3°F (6.3°C)	-1.4°F (-0.8°C)	122nd Warmest	Warmest since: 1916	2018
	Ties: 1920
May 1912–Apr 1917 60-Month	41.6°F (5.3°C)	43.4°F (6.3°C)	-1.8°F (-1.0°C)	1st Coolest	Coolest since: 1917	1917
May 1912–Apr 1917 60-Month	41.6°F (5.3°C)	43.4°F (6.3°C)	-1.8°F (-1.0°C)	123rd Warmest	Warmest since: 1916	2018, 2019

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 2, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings