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, December 2012

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
December 2012
1-Month		23.7°F
(-4.6°C)		23.0°F
(-5.0°C)		0.7°F
(0.4°C)		69th Coolest
Coolest since:
1909
60th Warmest
Warmest since:
1980
Ties: 1970, 2011
Nov–Dec 2012
2-Month		30.9°F
(-0.6°C)		27.5°F
(-2.5°C)		3.4°F
(1.9°C)		111th Coolest
Coolest since:
1895
18th Warmest
Warmest since:
2017
Oct–Dec 2012
3-Month		36.2°F
(2.3°C)		33.5°F
(0.8°C)		2.7°F
(1.5°C)		111th Coolest
Coolest since:
1898
18th Warmest
Warmest since:
1950, 2017
Ties: 2010
Sep–Dec 2012
4-Month		42.0°F
(5.6°C)		39.2°F
(4.0°C)		2.8°F
(1.6°C)		116th Coolest
Coolest since:
1898, 1912
13th Warmest
Warmest since:
2021
Ties: 1921, 1962
Aug–Dec 2012
5-Month		47.3°F
(8.5°C)		44.3°F
(6.8°C)		3.0°F
(1.7°C)		126th Coolest
Coolest since:
1912
3rd Warmest
Warmest since:
2021
Ties: 1933, 1995, 2020
Jul–Dec 2012
6-Month		51.0°F
(10.6°C)		48.1°F
(8.9°C)		2.9°F
(1.7°C)		125th Coolest
Coolest since:
1912
4th Warmest
Warmest since:
2021
Ties: 1933
Jun–Dec 2012
7-Month		53.2°F
(11.8°C)		49.9°F
(9.9°C)		3.3°F
(1.9°C)		126th Coolest
Coolest since:
1912
3rd Warmest
Warmest to Date
2021
May–Dec 2012
8-Month		53.4°F
(11.9°C)		50.0°F
(10.0°C)		3.4°F
(1.9°C)		127th Coolest
Coolest since:
1912
2nd Warmest
Warmest to Date
2021
Apr–Dec 2012
9-Month		52.6°F
(11.4°C)		49.1°F
(9.5°C)		3.5°F
(1.9°C)		127th Coolest
Coolest since:
1912
2nd Warmest
Warmest to Date
2021
Mar–Dec 2012
10-Month		51.3°F
(10.7°C)		47.5°F
(8.6°C)		3.8°F
(2.1°C)		128th Coolest
Coolest since:
1912
1st Warmest
Warmest to Date
2012
Feb–Dec 2012
11-Month		49.1°F
(9.5°C)		45.5°F
(7.5°C)		3.6°F
(2.0°C)		127th Coolest
Coolest since:
1912
2nd Warmest
Warmest to Date
2017
Jan–Dec 2012
12-Month		47.3°F
(8.5°C)		43.4°F
(6.3°C)		3.9°F
(2.2°C)		128th Coolest
Coolest since:
1895, 1912
1st Warmest
Warmest to Date
2012
Jul 2011–Dec 2012
18-Month		48.0°F
(8.9°C)		45.0°F
(7.2°C)		3.0°F
(1.7°C)		123rd Coolest
Coolest since:
1912
5th Warmest
Warmest since:
1934
Ties: 2015
Jan 2011–Dec 2012
24-Month		45.5°F
(7.5°C)		43.4°F
(6.3°C)		2.1°F
(1.2°C)		114th Coolest
Coolest since:
1913
14th Warmest
Warmest since:
2018
Ties: 2002
Jan 2010–Dec 2012
36-Month		45.2°F
(7.3°C)		43.4°F
(6.3°C)		1.8°F
(1.0°C)		109th Coolest
Coolest since:
1899, 1913
18th Warmest
Warmest since:
2017
Ties: 2006
Jan 2009–Dec 2012
48-Month		45.1°F
(7.3°C)		43.4°F
(6.3°C)		1.7°F
(1.0°C)		109th Coolest
Coolest since:
1898
17th Warmest
Warmest since:
2018
Ties: 2000, 2008
Jan 2008–Dec 2012
60-Month		44.8°F
(7.1°C)		43.4°F
(6.3°C)		1.4°F
(0.8°C)		102nd Coolest
Coolest since:
1899
23rd Warmest
Warmest since:
2018
Ties: 1996, 2010

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