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 1971

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
December 1971
1-Month 		19.3°F
(-7.1°C)		 23.0°F
(-5.0°C)		 -3.7°F
(-2.1°C)		 25th Coolest
Coolest since:
 1909
104th Warmest
Warmest since:
 1980
Ties: 1908
Nov–Dec 1971
2-Month 		24.2°F
(-4.3°C)		 27.5°F
(-2.5°C)		 -3.3°F
(-1.8°C)		 13th Coolest
Coolest since:
 1895
116th Warmest
Warmest since:
 2017
Ties: 1932, 1961
Oct–Dec 1971
3-Month 		30.5°F
(-0.8°C)		 33.5°F
(0.8°C)		 -3.0°F
(-1.6°C)		 11th Coolest
Coolest since:
 1898
118th Warmest
Warmest since:
 1950, 2017
Ties: 1909, 1932
Sep–Dec 1971
4-Month 		36.1°F
(2.3°C)		 39.2°F
(4.0°C)		 -3.1°F
(-1.7°C)		 7th Coolest
Coolest since:
 1898, 1912
122nd Warmest
Warmest since:
 2021
Aug–Dec 1971
5-Month 		42.3°F
(5.7°C)		 44.3°F
(6.8°C)		 -2.0°F
(-1.1°C)		 11th Coolest
Coolest since:
 1912
118th Warmest
Warmest since:
 2021
Ties: 1920, 1968
Jul–Dec 1971
6-Month 		46.5°F
(8.1°C)		 48.1°F
(8.9°C)		 -1.6°F
(-0.8°C)		 14th Coolest
Coolest since:
 1912
115th Warmest
Warmest since:
 2021
Ties: 1899
Jun–Dec 1971
7-Month 		48.6°F
(9.2°C)		 49.9°F
(9.9°C)		 -1.3°F
(-0.7°C)		 19th Coolest
Coolest since:
 1912
110th Warmest
Warmest since:
 2021
Ties: 1909, 1915, 1919
May–Dec 1971
8-Month 		48.7°F
(9.3°C)		 50.0°F
(10.0°C)		 -1.3°F
(-0.7°C)		 17th Coolest
Coolest since:
 1912
112th Warmest
Warmest since:
 2021
Ties: 1932, 1951, 1975
Apr–Dec 1971
9-Month 		47.9°F
(8.8°C)		 49.1°F
(9.5°C)		 -1.2°F
(-0.7°C)		 15th Coolest
Coolest since:
 1912
114th Warmest
Warmest since:
 2021
Ties: 1907, 1923, 1928, 1932, 1945, 1951
Mar–Dec 1971
10-Month 		46.3°F
(7.9°C)		 47.5°F
(8.6°C)		 -1.2°F
(-0.7°C)		 19th Coolest
Coolest since:
 1912
110th Warmest
Warmest since:
 2012
Ties: 1913
Feb–Dec 1971
11-Month 		44.5°F
(6.9°C)		 45.5°F
(7.5°C)		 -1.0°F
(-0.6°C)		 23rd Coolest
Coolest since:
 1912
106th Warmest
Warmest since:
 2017
Ties: 1919, 1951, 1952, 1955, 1965, 1984
Jan–Dec 1971
12-Month 		42.8°F
(6.0°C)		 43.4°F
(6.3°C)		 -0.6°F
(-0.3°C)		 35th Coolest
Coolest since:
 1895, 1912
94th Warmest
Warmest since:
 2012
Ties: 1896, 1906, 1937, 1942, 1982
Jul 1970–Dec 1971
18-Month 		44.4°F
(6.9°C)		 45.0°F
(7.2°C)		 -0.6°F
(-0.3°C)		 31st Coolest
Coolest since:
 1912
97th Warmest
Warmest since:
 1934
Ties: 1928, 1933, 1957, 1984, 1993
Jan 1970–Dec 1971
24-Month 		43.1°F
(6.2°C)		 43.4°F
(6.3°C)		 -0.3°F
(-0.1°C)		 42nd Coolest
Coolest since:
 1913
86th Warmest
Warmest since:
 2018
Ties: 1928, 1942, 1948, 1950, 1979
Jan 1969–Dec 1971
36-Month 		43.3°F
(6.3°C)		 43.4°F
(6.3°C)		 -0.1°F
(0.0°C)		 51st Coolest
Coolest since:
 1899, 1913
76th Warmest
Warmest since:
 2017
Ties: 1901, 1946
Jan 1968–Dec 1971
48-Month 		43.0°F
(6.1°C)		 43.4°F
(6.3°C)		 -0.4°F
(-0.2°C)		 34th Coolest
Coolest since:
 1898
92nd Warmest
Warmest since:
 2018
Ties: 1903, 1910, 1929, 1967, 1973, 1974, 1985
Jan 1967–Dec 1971
60-Month 		43.1°F
(6.2°C)		 43.4°F
(6.3°C)		 -0.3°F
(-0.1°C)		 40th Coolest
Coolest since:
 1899
85th Warmest
Warmest since:
 2018
Ties: 1904, 1928, 1953, 1973

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