Regional Rankings

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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 1909

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Record Coolest
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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2023)	Warmest/Coolest Since	Record
April 1909 1-Month	37.8°F (3.2°C)	41.7°F (5.4°C)	-3.9°F (-2.2°C)	12th Coolest	Coolest to Date	1920
	37.8°F (3.2°C)	41.7°F (5.4°C)	-3.9°F (-2.2°C)	118th Warmest	Warmest since: 1908	1992
	Ties: 1929
Mar–Apr 1909 2-Month	34.0°F (1.1°C)	37.3°F (2.9°C)	-3.3°F (-1.8°C)	12th Coolest	Coolest since: 1897	1917
	34.0°F (1.1°C)	37.3°F (2.9°C)	-3.3°F (-1.8°C)	118th Warmest	Warmest since: 1908	1934, 1992
	Ties: 1897, 1952
Feb–Apr 1909 3-Month	30.3°F (-0.9°C)	33.4°F (0.8°C)	-3.1°F (-1.7°C)	14th Coolest	Coolest since: 1903	1903
	30.3°F (-0.9°C)	33.4°F (0.8°C)	-3.1°F (-1.7°C)	116th Warmest	Warmest since: 1908	1934
	Ties: 1984
Jan–Apr 1909 4-Month	29.1°F (-1.6°C)	30.3°F (-0.9°C)	-1.2°F (-0.7°C)	34th Coolest	Coolest since: 1903	1917
Jan–Apr 1909 4-Month	29.1°F (-1.6°C)	30.3°F (-0.9°C)	-1.2°F (-0.7°C)	96th Warmest	Warmest since: 1908	1934
Dec 1908–Apr 1909 5-Month	27.1°F (-2.7°C)	28.8°F (-1.8°C)	-1.7°F (-0.9°C)	29th Coolest	Coolest since: 1903	1917
Dec 1908–Apr 1909 5-Month	27.1°F (-2.7°C)	28.8°F (-1.8°C)	-1.7°F (-0.9°C)	100th Warmest	Warmest since: 1908	1934
Nov 1908–Apr 1909 6-Month	27.5°F (-2.5°C)	29.4°F (-1.4°C)	-1.9°F (-1.1°C)	24th Coolest	Coolest since: 1903	1917
	27.5°F (-2.5°C)	29.4°F (-1.4°C)	-1.9°F (-1.1°C)	105th Warmest	Warmest since: 1908	1934
	Ties: 1939
Oct 1908–Apr 1909 7-Month	29.3°F (-1.5°C)	31.7°F (-0.2°C)	-2.4°F (-1.3°C)	17th Coolest	Coolest since: 1903	1917
Oct 1908–Apr 1909 7-Month	29.3°F (-1.5°C)	31.7°F (-0.2°C)	-2.4°F (-1.3°C)	112th Warmest	Warmest since: 1908	1934
Sep 1908–Apr 1909 8-Month	32.5°F (0.3°C)	34.8°F (1.6°C)	-2.3°F (-1.3°C)	13th Coolest	Coolest since: 1903	1917
	32.5°F (0.3°C)	34.8°F (1.6°C)	-2.3°F (-1.3°C)	116th Warmest	Warmest since: 1908	1934
	Ties: 1896, 1932
Aug 1908–Apr 1909 9-Month	35.8°F (2.1°C)	38.1°F (3.4°C)	-2.3°F (-1.3°C)	8th Coolest	Coolest since: 1903	1917
	35.8°F (2.1°C)	38.1°F (3.4°C)	-2.3°F (-1.3°C)	121st Warmest	Warmest since: 1908	1934
	Ties: 1899, 1912
Jul 1908–Apr 1909 10-Month	38.9°F (3.8°C)	41.0°F (5.0°C)	-2.1°F (-1.2°C)	9th Coolest	Coolest since: 1903	1917
	38.9°F (3.8°C)	41.0°F (5.0°C)	-2.1°F (-1.2°C)	120th Warmest	Warmest since: 1908	1934
	Ties: 1896, 1899
Jun 1908–Apr 1909 11-Month	40.4°F (4.7°C)	42.7°F (5.9°C)	-2.3°F (-1.2°C)	6th Coolest	Coolest since: 1903	1917
	40.4°F (4.7°C)	42.7°F (5.9°C)	-2.3°F (-1.2°C)	123rd Warmest	Warmest since: 1908	1934
	Ties: 1952, 1973
May 1908–Apr 1909 12-Month	40.9°F (4.9°C)	43.4°F (6.3°C)	-2.5°F (-1.4°C)	3rd Coolest	Coolest to Date	1917
May 1908–Apr 1909 12-Month	40.9°F (4.9°C)	43.4°F (6.3°C)	-2.5°F (-1.4°C)	126th Warmest	Warmest since: 1908	1934, 2015, 2018
Nov 1907–Apr 1909 18-Month	37.0°F (2.8°C)	38.7°F (3.7°C)	-1.7°F (-0.9°C)	8th Coolest	Coolest since: 1899	1913
Nov 1907–Apr 1909 18-Month	37.0°F (2.8°C)	38.7°F (3.7°C)	-1.7°F (-0.9°C)	120th Warmest	Warmest since: 1908	2018
May 1907–Apr 1909 24-Month	41.6°F (5.3°C)	43.4°F (6.3°C)	-1.8°F (-1.0°C)	5th Coolest	Coolest to Date	1913
May 1907–Apr 1909 24-Month	41.6°F (5.3°C)	43.4°F (6.3°C)	-1.8°F (-1.0°C)	123rd Warmest	Warmest since: 1908	2018
May 1906–Apr 1909 36-Month	42.5°F (5.8°C)	43.4°F (6.3°C)	-0.9°F (-0.5°C)	15th Coolest	Coolest since: 1905	1914
	42.5°F (5.8°C)	43.4°F (6.3°C)	-0.9°F (-0.5°C)	112th Warmest	Warmest since: 1908	2017, 2018, 2019
	Ties: 1921, 1930
May 1905–Apr 1909 48-Month	42.4°F (5.8°C)	43.4°F (6.3°C)	-1.0°F (-0.5°C)	13th Coolest	Coolest since: 1906	1899, 1915
	42.4°F (5.8°C)	43.4°F (6.3°C)	-1.0°F (-0.5°C)	113th Warmest	Warmest since: 1908	2018
	Ties: 1913
May 1904–Apr 1909 60-Month	42.6°F (5.9°C)	43.4°F (6.3°C)	-0.8°F (-0.4°C)	16th Coolest	Coolest since: 1901	1917
	42.6°F (5.9°C)	43.4°F (6.3°C)	-0.8°F (-0.4°C)	109th Warmest	Warmest since: 1908	2018, 2019
	Ties: 1924

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published May 2023, retrieved on June 3, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings