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 2010

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
December 2010
1-Month		29.0°F
(-1.7°C)		23.0°F
(-5.0°C)		6.0°F
(3.3°C)		122nd Coolest
Coolest since:
1909
7th Warmest
Warmest since:
1980
Ties: 1933, 1946
Nov–Dec 2010
2-Month		30.3°F
(-0.9°C)		27.5°F
(-2.5°C)		2.8°F
(1.6°C)		106th Coolest
Coolest since:
1895
23rd Warmest
Warmest since:
2017
Ties: 1942
Oct–Dec 2010
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: 2012
Sep–Dec 2010
4-Month		42.2°F
(5.7°C)		39.2°F
(4.0°C)		3.0°F
(1.7°C)		120th Coolest
Coolest since:
1898, 1912
9th Warmest
Warmest since:
2021
Ties: 1995
Aug–Dec 2010
5-Month		46.7°F
(8.2°C)		44.3°F
(6.8°C)		2.4°F
(1.4°C)		117th Coolest
Coolest since:
1912
12th Warmest
Warmest since:
2021
Ties: 1939, 1980, 2003, 2014
Jul–Dec 2010
6-Month		50.4°F
(10.2°C)		48.1°F
(8.9°C)		2.3°F
(1.3°C)		118th Coolest
Coolest since:
1912
11th Warmest
Warmest since:
2021
Ties: 1998, 2007
Jun–Dec 2010
7-Month		52.1°F
(11.2°C)		49.9°F
(9.9°C)		2.2°F
(1.3°C)		118th Coolest
Coolest since:
1912
11th Warmest
Warmest since:
2021
Ties: 2014, 2018
May–Dec 2010
8-Month		51.6°F
(10.9°C)		50.0°F
(10.0°C)		1.6°F
(0.9°C)		106th Coolest
Coolest since:
1912
23rd Warmest
Warmest since:
2021
Ties: 1937, 1980, 1996
Apr–Dec 2010
9-Month		50.5°F
(10.3°C)		49.1°F
(9.5°C)		1.4°F
(0.8°C)		100th Coolest
Coolest since:
1912
29th Warmest
Warmest since:
2021
Ties: 1936, 1962
Mar–Dec 2010
10-Month		48.9°F
(9.4°C)		47.5°F
(8.6°C)		1.4°F
(0.8°C)		101st Coolest
Coolest since:
1912
28th Warmest
Warmest since:
2012
Ties: 1954
Feb–Dec 2010
11-Month		46.6°F
(8.1°C)		45.5°F
(7.5°C)		1.1°F
(0.6°C)		92nd Coolest
Coolest since:
1912
37th Warmest
Warmest since:
2017
Ties: 1921, 1980, 1998
Jan–Dec 2010
12-Month		44.7°F
(7.1°C)		43.4°F
(6.3°C)		1.3°F
(0.8°C)		95th Coolest
Coolest since:
1895, 1912
34th Warmest
Warmest since:
2012
Ties: 1910, 1921, 1989, 1992
Jul 2009–Dec 2010
18-Month		45.8°F
(7.7°C)		45.0°F
(7.2°C)		0.8°F
(0.5°C)		84th Coolest
Coolest since:
1912
44th Warmest
Warmest since:
1934
Ties: 1938, 1958, 1988
Jan 2009–Dec 2010
24-Month		44.6°F
(7.0°C)		43.4°F
(6.3°C)		1.2°F
(0.7°C)		97th Coolest
Coolest since:
1913
31st Warmest
Warmest since:
2018
Ties: 1940, 1978, 1982, 1989, 1997
Jan 2008–Dec 2010
36-Month		44.3°F
(6.8°C)		43.4°F
(6.3°C)		0.9°F
(0.5°C)		90th Coolest
Coolest since:
1899, 1913
37th Warmest
Warmest since:
2017
Ties: 1940, 1960, 1983, 1987, 2011
Jan 2007–Dec 2010
48-Month		44.7°F
(7.1°C)		43.4°F
(6.3°C)		1.3°F
(0.8°C)		100th Coolest
Coolest since:
1898
26th Warmest
Warmest since:
2018
Ties: 1936, 1989
Jan 2006–Dec 2010
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, 2012

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