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 2021

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2023)		 Warmest/Coolest
Since		 Record
January 2021
1-Month 		24.0°F
(-4.4°C)		 21.1°F
(-6.1°C)		 2.9°F
(1.7°C)		 90th Coolest
Coolest since:
 1937
40th Warmest
Warmest since:
 2003
Dec 2020–Jan 2021
2-Month 		23.7°F
(-4.6°C)		 22.1°F
(-5.5°C)		 1.6°F
(0.9°C)		 84th Coolest
Coolest since:
 1979
45th Warmest
Warmest since:
 1981
Ties: 1958, 2020
Nov 2020–Jan 2021
3-Month 		27.6°F
(-2.4°C)		 25.4°F
(-3.7°C)		 2.2°F
(1.3°C)		 101st Coolest
Coolest since:
 1932
28th Warmest
Warmest since:
 2018
Ties: 2012
Oct 2020–Jan 2021
4-Month 		32.8°F
(0.4°C)		 30.4°F
(-0.9°C)		 2.4°F
(1.3°C)		 108th Coolest
Coolest since:
 1917
21st Warmest
Warmest since:
 2018
Ties: 1918, 1943, 1954
Sep 2020–Jan 2021
5-Month 		38.0°F
(3.3°C)		 35.6°F
(2.0°C)		 2.4°F
(1.3°C)		 112th Coolest
Coolest since:
 1913
17th Warmest
Warmest since:
 2018
Ties: 1940, 1954, 2005, 2006, 2011
Aug 2020–Jan 2021
6-Month 		43.5°F
(6.4°C)		 40.5°F
(4.7°C)		 3.0°F
(1.7°C)		 123rd Coolest
Coolest since:
 1913
6th Warmest
Warmest since:
 2018
Jul 2020–Jan 2021
7-Month 		47.1°F
(8.4°C)		 44.2°F
(6.8°C)		 2.9°F
(1.6°C)		 122nd Coolest
Coolest since:
 1913
7th Warmest
Warmest since:
 2018
Jun 2020–Jan 2021
8-Month 		49.0°F
(9.4°C)		 46.3°F
(7.9°C)		 2.7°F
(1.5°C)		 123rd Coolest
Coolest since:
 1913
6th Warmest
Warmest since:
 2022
Ties: 1978, 2003, 2017
May 2020–Jan 2021
9-Month 		49.7°F
(9.8°C)		 46.8°F
(8.2°C)		 2.9°F
(1.6°C)		 126th Coolest
Coolest since:
 1913
3rd Warmest
Warmest since:
 2022
Apr 2020–Jan 2021
10-Month 		49.1°F
(9.5°C)		 46.3°F
(7.9°C)		 2.8°F
(1.6°C)		 125th Coolest
Coolest since:
 1913
4th Warmest
Warmest since:
 2022
Ties: 2003
Mar 2020–Jan 2021
11-Month 		48.0°F
(8.9°C)		 45.0°F
(7.2°C)		 3.0°F
(1.7°C)		 124th Coolest
Coolest since:
 1913
5th Warmest
Warmest since:
 2018
Feb 2020–Jan 2021
12-Month 		46.1°F
(7.8°C)		 43.4°F
(6.3°C)		 2.7°F
(1.5°C)		 121st Coolest
Coolest since:
 1913
8th Warmest
Warmest since:
 2018
Ties: 2019
Aug 2019–Jan 2021
18-Month 		44.7°F
(7.1°C)		 42.4°F
(5.8°C)		 2.3°F
(1.3°C)		 118th Coolest
Coolest since:
 1913
10th Warmest
Warmest since:
 2018
Ties: 2000, 2023
Feb 2019–Jan 2021
24-Month 		45.1°F
(7.3°C)		 43.4°F
(6.3°C)		 1.7°F
(1.0°C)		 105th Coolest
Coolest since:
 1913, 1914
23rd Warmest
Warmest since:
 2018, 2019
Ties: 2009, 2020
Feb 2018–Jan 2021
36-Month 		45.4°F
(7.4°C)		 43.4°F
(6.3°C)		 2.0°F
(1.1°C)		 113th Coolest
Coolest since:
 1914
14th Warmest
Warmest since:
 2018
Ties: 2001
Feb 2017–Jan 2021
48-Month 		46.0°F
(7.8°C)		 43.4°F
(6.3°C)		 2.6°F
(1.5°C)		 123rd Coolest
Coolest since:
 1899
3rd Warmest
Warmest since:
 2018
Ties: 2020
Feb 2016–Jan 2021
60-Month 		46.0°F
(7.8°C)		 43.4°F
(6.3°C)		 2.6°F
(1.5°C)		 121st Coolest
Coolest since:
 1900, 1917
4th Warmest
Warmest since:
 2019
Ties: 2017, 2020

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