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 1983

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
December 1983
1-Month		21.1°F
(-6.1°C)		23.0°F
(-5.0°C)		-1.9°F
(-1.1°C)		37th Coolest
Coolest since:
1909
92nd Warmest
Warmest since:
1980
Nov–Dec 1983
2-Month		26.7°F
(-2.9°C)		27.5°F
(-2.5°C)		-0.8°F
(-0.4°C)		44th Coolest
Coolest since:
1895
85th Warmest
Warmest since:
2017
Ties: 1957
Oct–Dec 1983
3-Month		33.5°F
(0.8°C)		33.5°F
(0.8°C)		0.0°F
(0.0°C)		63rd Coolest
Coolest since:
1898
66th Warmest
Warmest since:
1950, 2017
Ties: 1940, 2002
Sep–Dec 1983
4-Month		39.9°F
(4.4°C)		39.2°F
(4.0°C)		0.7°F
(0.4°C)		79th Coolest
Coolest since:
1898, 1912
50th Warmest
Warmest since:
2021
Ties: 2019
Aug–Dec 1983
5-Month		45.4°F
(7.4°C)		44.3°F
(6.8°C)		1.1°F
(0.6°C)		89th Coolest
Coolest since:
1912
40th Warmest
Warmest since:
2021
Ties: 1954
Jul–Dec 1983
6-Month		48.9°F
(9.4°C)		48.1°F
(8.9°C)		0.8°F
(0.5°C)		81st Coolest
Coolest since:
1912
48th Warmest
Warmest since:
2021
Ties: 1940, 2000
Jun–Dec 1983
7-Month		50.2°F
(10.1°C)		49.9°F
(9.9°C)		0.3°F
(0.2°C)		69th Coolest
Coolest since:
1912
60th Warmest
Warmest since:
2021
Ties: 1974, 1991, 1997
May–Dec 1983
8-Month		49.9°F
(9.9°C)		50.0°F
(10.0°C)		-0.1°F
(-0.1°C)		51st Coolest
Coolest since:
1912
78th Warmest
Warmest since:
2021
Apr–Dec 1983
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: 1919, 1967, 1973, 1984
Mar–Dec 1983
10-Month		47.1°F
(8.4°C)		47.5°F
(8.6°C)		-0.4°F
(-0.2°C)		47th Coolest
Coolest since:
1912
82nd Warmest
Warmest since:
2012
Ties: 1922, 1941
Feb–Dec 1983
11-Month		45.4°F
(7.4°C)		45.5°F
(7.5°C)		-0.1°F
(-0.1°C)		53rd Coolest
Coolest since:
1912
76th Warmest
Warmest since:
2017
Ties: 1938, 1941, 1985
Jan–Dec 1983
12-Month		43.8°F
(6.6°C)		43.4°F
(6.3°C)		0.4°F
(0.3°C)		73rd Coolest
Coolest since:
1895, 1912
56th Warmest
Warmest since:
2012
Ties: 1935, 1969, 1978, 2011
Jul 1982–Dec 1983
18-Month		45.1°F
(7.3°C)		45.0°F
(7.2°C)		0.1°F
(0.1°C)		58th Coolest
Coolest since:
1912
70th Warmest
Warmest since:
1934
Ties: 1902, 1918
Jan 1982–Dec 1983
24-Month		43.3°F
(6.3°C)		43.4°F
(6.3°C)		-0.1°F
(0.0°C)		50th Coolest
Coolest since:
1913
78th Warmest
Warmest since:
2018
Ties: 1921, 1953, 1966
Jan 1981–Dec 1983
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, 1987, 2010, 2011
Jan 1980–Dec 1983
48-Month		44.4°F
(6.9°C)		43.4°F
(6.3°C)		1.0°F
(0.6°C)		93rd Coolest
Coolest since:
1898
33rd Warmest
Warmest since:
2018
Ties: 1991
Jan 1979–Dec 1983
60-Month		44.0°F
(6.7°C)		43.4°F
(6.3°C)		0.6°F
(0.4°C)		84th Coolest
Coolest since:
1899
41st Warmest
Warmest since:
2018
Ties: 1940, 1963, 1980, 1982, 1984

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