Regional Rankings

Regional Data Info
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, January 1900

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Warmest/Coolest
Since		Record
January 1900
1-Month		25.7°F
(-3.5°C)		21.1°F
(-6.1°C)		4.6°F
(2.6°C)		110th Coolest
Coolest since:
1937
20th Warmest
Warmest to Date
2003
Ties: 2006, 2009, 2014
Dec 1899–Jan 1900
2-Month		21.9°F
(-5.6°C)		22.1°F
(-5.5°C)		-0.2°F
(-0.1°C)		51st Coolest
Coolest since:
1979
78th Warmest
Warmest since:
1981
Ties: 1908, 1948, 2002
Nov 1899–Jan 1900
3-Month		26.0°F
(-3.3°C)		25.4°F
(-3.7°C)		0.6°F
(0.4°C)		68th Coolest
Coolest since:
1932
61st Warmest
Warmest to Date
2018
Ties: 2004
Oct 1899–Jan 1900
4-Month		30.0°F
(-1.1°C)		30.4°F
(-0.9°C)		-0.4°F
(-0.2°C)		43rd Coolest
Coolest since:
1917
86th Warmest
Warmest to Date
2018
Ties: 1916, 1992, 1993
Sep 1899–Jan 1900
5-Month		35.4°F
(1.9°C)		35.6°F
(2.0°C)		-0.2°F
(-0.1°C)		46th Coolest
Coolest since:
1913
83rd Warmest
Warmest to Date
2018
Ties: 1939, 1969, 1987
Aug 1899–Jan 1900
6-Month		39.7°F
(4.3°C)		40.5°F
(4.7°C)		-0.8°F
(-0.4°C)		35th Coolest
Coolest since:
1913
94th Warmest
Warmest to Date
2018
Ties: 1916, 1985
Jul 1899–Jan 1900
7-Month		43.6°F
(6.4°C)		44.2°F
(6.8°C)		-0.6°F
(-0.4°C)		36th Coolest
Coolest since:
1913
93rd Warmest
Warmest to Date
2018
Ties: 1946, 1994
Jun 1899–Jan 1900
8-Month		45.5°F
(7.5°C)		46.3°F
(7.9°C)		-0.8°F
(-0.4°C)		35th Coolest
Coolest since:
1913
94th Warmest
Warmest since:
2022
Ties: 1994
May 1899–Jan 1900
9-Month		45.8°F
(7.7°C)		46.8°F
(8.2°C)		-1.0°F
(-0.5°C)		27th Coolest
Coolest since:
1913
102nd Warmest
Warmest since:
2022
Ties: 1903, 1915, 1921
Apr 1899–Jan 1900
10-Month		45.5°F
(7.5°C)		46.3°F
(7.9°C)		-0.8°F
(-0.4°C)		35th Coolest
Coolest since:
1913
94th Warmest
Warmest since:
2022
Ties: 1897, 1903, 1914
Mar 1899–Jan 1900
11-Month		44.2°F
(6.8°C)		45.0°F
(7.2°C)		-0.8°F
(-0.4°C)		29th Coolest
Coolest since:
1913
100th Warmest
Warmest since:
2018
Ties: 1919, 1962, 1969, 1972
Feb 1899–Jan 1900
12-Month		42.2°F
(5.7°C)		43.4°F
(6.3°C)		-1.2°F
(-0.6°C)		19th Coolest
Coolest since:
1913
110th Warmest
Warmest since:
2018
Ties: 1906, 1914
Aug 1898–Jan 1900
18-Month		40.8°F
(4.9°C)		42.4°F
(5.8°C)		-1.6°F
(-0.9°C)		11th Coolest
Coolest since:
1913
117th Warmest
Warmest since:
2018
Ties: 1898, 1933
Feb 1898–Jan 1900
24-Month		42.0°F
(5.6°C)		43.4°F
(6.3°C)		-1.4°F
(-0.7°C)		11th Coolest
Coolest since:
1913, 1914
117th Warmest
Warmest since:
2018, 2019
Ties: 1898, 1931
Feb 1897–Jan 1900
36-Month		41.9°F
(5.5°C)		43.4°F
(6.3°C)		-1.5°F
(-0.8°C)		4th Coolest
Coolest since:
1914
123rd Warmest
Warmest since:
2018
Ties: 1919
Feb 1896–Jan 1900
48-Month		42.0°F
(5.6°C)		43.4°F
(6.3°C)		-1.4°F
(-0.7°C)		4th Coolest
Coolest since:
1899
122nd Warmest
Warmest to Date
2018
Feb 1895–Jan 1900
60-Month		41.8°F
(5.4°C)		43.4°F
(6.3°C)		-1.6°F
(-0.9°C)		1st Coolest
Coolest to Date
1900, 1917
124th Warmest
Warmest to Date
2019
Ties: 1917

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