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 1919

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
December 1919
1-Month		17.1°F
(-8.3°C)		23.0°F
(-5.0°C)		-5.9°F
(-3.3°C)		9th Coolest
Coolest since:
1909
120th Warmest
Warmest since:
1980
Nov–Dec 1919
2-Month		23.5°F
(-4.7°C)		27.5°F
(-2.5°C)		-4.0°F
(-2.2°C)		7th Coolest
Coolest since:
1895
122nd Warmest
Warmest since:
2017
Ties: 1972
Oct–Dec 1919
3-Month		28.8°F
(-1.8°C)		33.5°F
(0.8°C)		-4.7°F
(-2.6°C)		3rd Coolest
Coolest since:
1898
126th Warmest
Warmest since:
1950, 2017
Sep–Dec 1919
4-Month		36.2°F
(2.3°C)		39.2°F
(4.0°C)		-3.0°F
(-1.7°C)		8th Coolest
Coolest since:
1898, 1912
121st Warmest
Warmest since:
2021
Ties: 1916, 1930
Aug–Dec 1919
5-Month		42.0°F
(5.6°C)		44.3°F
(6.8°C)		-2.3°F
(-1.2°C)		8th Coolest
Coolest since:
1912
121st Warmest
Warmest since:
2021
Ties: 1961
Jul–Dec 1919
6-Month		46.4°F
(8.0°C)		48.1°F
(8.9°C)		-1.7°F
(-0.9°C)		13th Coolest
Coolest since:
1912
116th Warmest
Warmest since:
2021
Jun–Dec 1919
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, 1971
May–Dec 1919
8-Month		49.2°F
(9.6°C)		50.0°F
(10.0°C)		-0.8°F
(-0.4°C)		27th Coolest
Coolest since:
1912
102nd Warmest
Warmest since:
2021
Ties: 1906, 1927, 1945, 1978
Apr–Dec 1919
9-Month		48.5°F
(9.2°C)		49.1°F
(9.5°C)		-0.6°F
(-0.3°C)		36th Coolest
Coolest since:
1912
93rd Warmest
Warmest since:
2021
Ties: 1967, 1973, 1983, 1984
Mar–Dec 1919
10-Month		46.8°F
(8.2°C)		47.5°F
(8.6°C)		-0.7°F
(-0.4°C)		37th Coolest
Coolest since:
1912
92nd Warmest
Warmest since:
2012
Ties: 1982, 1984, 1993
Feb–Dec 1919
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: 1951, 1952, 1955, 1965, 1971, 1984
Jan–Dec 1919
12-Month		42.2°F
(5.7°C)		43.4°F
(6.3°C)		-1.2°F
(-0.6°C)		20th Coolest
Coolest since:
1895, 1912
109th Warmest
Warmest since:
2012
Ties: 1897, 1930, 1984
Jul 1918–Dec 1919
18-Month		43.7°F
(6.5°C)		45.0°F
(7.2°C)		-1.3°F
(-0.7°C)		16th Coolest
Coolest since:
1912
112th Warmest
Warmest since:
1934
Jan 1918–Dec 1919
24-Month		42.5°F
(5.8°C)		43.4°F
(6.3°C)		-0.9°F
(-0.5°C)		18th Coolest
Coolest since:
1913
110th Warmest
Warmest since:
2018
Ties: 1897, 1933, 1952, 1965, 1974
Jan 1917–Dec 1919
36-Month		42.2°F
(5.7°C)		43.4°F
(6.3°C)		-1.2°F
(-0.6°C)		9th Coolest
Coolest since:
1899, 1913
118th Warmest
Warmest since:
2017
Ties: 1905
Jan 1916–Dec 1919
48-Month		42.1°F
(5.6°C)		43.4°F
(6.3°C)		-1.3°F
(-0.7°C)		5th Coolest
Coolest since:
1898
121st Warmest
Warmest since:
2018
Ties: 1917, 1918, 1920
Jan 1915–Dec 1919
60-Month		42.1°F
(5.6°C)		43.4°F
(6.3°C)		-1.3°F
(-0.7°C)		5th Coolest
Coolest since:
1899
120th Warmest
Warmest since:
2018
Ties: 1915

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