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 1984

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
December 1984
1-Month		23.1°F
(-4.9°C)		23.0°F
(-5.0°C)		0.1°F
(0.1°C)		58th Coolest
Coolest since:
1909
71st Warmest
Warmest since:
1980
Nov–Dec 1984
2-Month		27.7°F
(-2.4°C)		27.5°F
(-2.5°C)		0.2°F
(0.1°C)		64th Coolest
Coolest since:
1895
65th Warmest
Warmest since:
2017
Ties: 1907, 1915
Oct–Dec 1984
3-Month		31.9°F
(-0.1°C)		33.5°F
(0.8°C)		-1.6°F
(-0.9°C)		26th Coolest
Coolest since:
1898
103rd Warmest
Warmest since:
1950, 2017
Ties: 1982, 2009
Sep–Dec 1984
4-Month		38.1°F
(3.4°C)		39.2°F
(4.0°C)		-1.1°F
(-0.6°C)		30th Coolest
Coolest since:
1898, 1912
99th Warmest
Warmest since:
2021
Ties: 1897, 1902, 1918, 1982
Aug–Dec 1984
5-Month		43.7°F
(6.5°C)		44.3°F
(6.8°C)		-0.6°F
(-0.3°C)		35th Coolest
Coolest since:
1912
94th Warmest
Warmest since:
2021
Ties: 1900, 1914, 1948, 1957, 1970, 1975
Jul–Dec 1984
6-Month		47.7°F
(8.7°C)		48.1°F
(8.9°C)		-0.4°F
(-0.2°C)		47th Coolest
Coolest since:
1912
82nd Warmest
Warmest since:
2021
Ties: 1907, 1938
Jun–Dec 1984
7-Month		49.2°F
(9.6°C)		49.9°F
(9.9°C)		-0.7°F
(-0.3°C)		36th Coolest
Coolest since:
1912
93rd Warmest
Warmest since:
2021
Ties: 1957, 1982
May–Dec 1984
8-Month		49.8°F
(9.9°C)		50.0°F
(10.0°C)		-0.2°F
(-0.1°C)		48th Coolest
Coolest since:
1912
81st Warmest
Warmest since:
2021
Ties: 1925, 1964
Apr–Dec 1984
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, 1983
Mar–Dec 1984
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: 1919, 1982, 1993
Feb–Dec 1984
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, 1971
Jan–Dec 1984
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, 1919, 1930
Jul 1983–Dec 1984
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, 1971, 1993
Jan 1983–Dec 1984
24-Month		43.0°F
(6.1°C)		43.4°F
(6.3°C)		-0.4°F
(-0.2°C)		39th Coolest
Coolest since:
1913
89th Warmest
Warmest since:
2018
Ties: 1900, 1956
Jan 1982–Dec 1984
36-Month		42.9°F
(6.1°C)		43.4°F
(6.3°C)		-0.5°F
(-0.2°C)		29th Coolest
Coolest since:
1899, 1913
98th Warmest
Warmest since:
2017
Ties: 1921, 1949, 1951, 1952, 1966, 1973, 1976
Jan 1981–Dec 1984
48-Month		43.8°F
(6.6°C)		43.4°F
(6.3°C)		0.4°F
(0.3°C)		74th Coolest
Coolest since:
1898
52nd Warmest
Warmest since:
2018
Ties: 1939, 1942, 1954, 1962, 1979, 1987
Jan 1980–Dec 1984
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, 1983

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