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 1908

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
December 1908
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: 1971
Nov–Dec 1908
2-Month 		24.4°F
(-4.2°C)		 27.5°F
(-2.5°C)		 -3.1°F
(-1.7°C)		 16th Coolest
Coolest since:
 1895
113th Warmest
Warmest since:
 2017
Ties: 1924
Oct–Dec 1908
3-Month 		29.5°F
(-1.4°C)		 33.5°F
(0.8°C)		 -4.0°F
(-2.2°C)		 5th Coolest
Coolest since:
 1898
124th Warmest
Warmest since:
 1950, 2017
Sep–Dec 1908
4-Month 		36.0°F
(2.2°C)		 39.2°F
(4.0°C)		 -3.2°F
(-1.8°C)		 4th Coolest
Coolest since:
 1898, 1912
125th Warmest
Warmest since:
 2021
Ties: 1911, 1961
Aug–Dec 1908
5-Month 		41.3°F
(5.2°C)		 44.3°F
(6.8°C)		 -3.0°F
(-1.6°C)		 2nd Coolest
Coolest since:
 1912
127th Warmest
Warmest since:
 2021
Ties: 1895
Jul–Dec 1908
6-Month 		45.4°F
(7.4°C)		 48.1°F
(8.9°C)		 -2.7°F
(-1.5°C)		 4th Coolest
Coolest since:
 1912
125th Warmest
Warmest since:
 2021
Ties: 1916
Jun–Dec 1908
7-Month 		46.9°F
(8.3°C)		 49.9°F
(9.9°C)		 -3.0°F
(-1.6°C)		 3rd Coolest
Coolest since:
 1912
126th Warmest
Warmest since:
 2021
May–Dec 1908
8-Month 		46.9°F
(8.3°C)		 50.0°F
(10.0°C)		 -3.1°F
(-1.7°C)		 2nd Coolest
Coolest to Date
 1912
127th Warmest
Warmest since:
 2021
Apr–Dec 1908
9-Month 		46.4°F
(8.0°C)		 49.1°F
(9.5°C)		 -2.7°F
(-1.5°C)		 2nd Coolest
Coolest to Date
 1912
127th Warmest
Warmest since:
 2021
Mar–Dec 1908
10-Month 		45.2°F
(7.3°C)		 47.5°F
(8.6°C)		 -2.3°F
(-1.3°C)		 3rd Coolest
Coolest since:
 1912
126th Warmest
Warmest since:
 2012
Feb–Dec 1908
11-Month 		43.1°F
(6.2°C)		 45.5°F
(7.5°C)		 -2.4°F
(-1.3°C)		 4th Coolest
Coolest since:
 1912
125th Warmest
Warmest since:
 2017
Jan–Dec 1908
12-Month 		41.2°F
(5.1°C)		 43.4°F
(6.3°C)		 -2.2°F
(-1.2°C)		 4th Coolest
Coolest since:
 1895, 1912
125th Warmest
Warmest since:
 2012
Ties: 1898
Jul 1907–Dec 1908
18-Month 		43.4°F
(6.3°C)		 45.0°F
(7.2°C)		 -1.6°F
(-0.9°C)		 10th Coolest
Coolest since:
 1912
118th Warmest
Warmest since:
 1934
Ties: 1973
Jan 1907–Dec 1908
24-Month 		42.6°F
(5.9°C)		 43.4°F
(6.3°C)		 -0.8°F
(-0.4°C)		 24th Coolest
Coolest since:
 1913
104th Warmest
Warmest since:
 2018
Ties: 1906, 1925, 1932, 1949, 1975
Jan 1906–Dec 1908
36-Month 		42.6°F
(5.9°C)		 43.4°F
(6.3°C)		 -0.8°F
(-0.4°C)		 22nd Coolest
Coolest since:
 1899, 1913
105th Warmest
Warmest since:
 2017
Ties: 1903, 1910, 1929
Jan 1905–Dec 1908
48-Month 		42.6°F
(5.9°C)		 43.4°F
(6.3°C)		 -0.8°F
(-0.4°C)		 19th Coolest
Coolest since:
 1898
107th Warmest
Warmest since:
 2018
Ties: 1911, 1931, 1933, 1976
Jan 1904–Dec 1908
60-Month 		42.7°F
(5.9°C)		 43.4°F
(6.3°C)		 -0.7°F
(-0.4°C)		 19th Coolest
Coolest since:
 1899
106th Warmest
Warmest since:
 2018
Ties: 1901, 1905, 1907, 1926, 1931

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