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 2015

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Warmest/Coolest
Since		Record
January 2015
1-Month		28.5°F
(-1.9°C)		21.1°F
(-6.1°C)		7.4°F
(4.2°C)		124th Coolest
Coolest since:
1937
6th Warmest
Warmest since:
2003
Dec 2014–Jan 2015
2-Month		28.1°F
(-2.2°C)		22.1°F
(-5.5°C)		6.0°F
(3.3°C)		125th Coolest
Coolest since:
1979
4th Warmest
Warmest since:
1981
Nov 2014–Jan 2015
3-Month		29.8°F
(-1.2°C)		25.4°F
(-3.7°C)		4.4°F
(2.5°C)		123rd Coolest
Coolest since:
1932
6th Warmest
Warmest since:
2018
Ties: 1911
Oct 2014–Jan 2015
4-Month		34.6°F
(1.4°C)		30.4°F
(-0.9°C)		4.2°F
(2.3°C)		124th Coolest
Coolest since:
1917
5th Warmest
Warmest since:
2018
Sep 2014–Jan 2015
5-Month		39.7°F
(4.3°C)		35.6°F
(2.0°C)		4.1°F
(2.3°C)		126th Coolest
Coolest since:
1913
3rd Warmest
Warmest since:
2018
Ties: 1934
Aug 2014–Jan 2015
6-Month		43.7°F
(6.5°C)		40.5°F
(4.7°C)		3.2°F
(1.8°C)		124th Coolest
Coolest since:
1913
5th Warmest
Warmest since:
2018
Jul 2014–Jan 2015
7-Month		47.4°F
(8.6°C)		44.2°F
(6.8°C)		3.2°F
(1.8°C)		125th Coolest
Coolest since:
1913
4th Warmest
Warmest since:
2018
Ties: 1981
Jun 2014–Jan 2015
8-Month		49.2°F
(9.6°C)		46.3°F
(7.9°C)		2.9°F
(1.7°C)		125th Coolest
Coolest since:
1913
4th Warmest
Warmest since:
2022
May 2014–Jan 2015
9-Month		49.5°F
(9.7°C)		46.8°F
(8.2°C)		2.7°F
(1.5°C)		125th Coolest
Coolest since:
1913
4th Warmest
Warmest to Date
2022
Apr 2014–Jan 2015
10-Month		48.8°F
(9.3°C)		46.3°F
(7.9°C)		2.5°F
(1.4°C)		121st Coolest
Coolest since:
1913
8th Warmest
Warmest since:
2022
Ties: 2002
Mar 2014–Jan 2015
11-Month		47.7°F
(8.7°C)		45.0°F
(7.2°C)		2.7°F
(1.5°C)		123rd Coolest
Coolest since:
1913
6th Warmest
Warmest since:
2018
Ties: 1911, 2002, 2019
Feb 2014–Jan 2015
12-Month		46.2°F
(7.9°C)		43.4°F
(6.3°C)		2.8°F
(1.6°C)		124th Coolest
Coolest since:
1913
5th Warmest
Warmest since:
2018
Ties: 2016, 2017
Aug 2013–Jan 2015
18-Month		44.6°F
(7.0°C)		42.4°F
(5.8°C)		2.2°F
(1.2°C)		115th Coolest
Coolest since:
1913
13th Warmest
Warmest since:
2018
Ties: 1997, 2003, 2004
Feb 2013–Jan 2015
24-Month		45.5°F
(7.5°C)		43.4°F
(6.3°C)		2.1°F
(1.2°C)		115th Coolest
Coolest since:
1913, 1914
13th Warmest
Warmest since:
2018, 2019
Feb 2012–Jan 2015
36-Month		45.8°F
(7.7°C)		43.4°F
(6.3°C)		2.4°F
(1.4°C)		121st Coolest
Coolest since:
1914
6th Warmest
Warmest since:
2018
Ties: 2003
Feb 2011–Jan 2015
48-Month		45.4°F
(7.4°C)		43.4°F
(6.3°C)		2.0°F
(1.1°C)		112th Coolest
Coolest since:
1899
14th Warmest
Warmest since:
2018
Feb 2010–Jan 2015
60-Month		45.3°F
(7.4°C)		43.4°F
(6.3°C)		1.9°F
(1.1°C)		110th Coolest
Coolest since:
1900, 1917
15th Warmest
Warmest since:
2019
Ties: 2002

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