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 1986

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
December 1986
1-Month		25.4°F
(-3.7°C)		23.0°F
(-5.0°C)		2.4°F
(1.3°C)		97th Coolest
Coolest since:
1909
32nd Warmest
Warmest since:
1980
Ties: 1943
Nov–Dec 1986
2-Month		29.3°F
(-1.5°C)		27.5°F
(-2.5°C)		1.8°F
(1.0°C)		90th Coolest
Coolest since:
1895
39th Warmest
Warmest since:
2017
Ties: 1943
Oct–Dec 1986
3-Month		34.2°F
(1.2°C)		33.5°F
(0.8°C)		0.7°F
(0.4°C)		77th Coolest
Coolest since:
1898
52nd Warmest
Warmest since:
1950, 2017
Sep–Dec 1986
4-Month		38.9°F
(3.8°C)		39.2°F
(4.0°C)		-0.3°F
(-0.2°C)		47th Coolest
Coolest since:
1898, 1912
82nd Warmest
Warmest since:
2021
Ties: 1915, 1969, 1975
Aug–Dec 1986
5-Month		44.4°F
(6.9°C)		44.3°F
(6.8°C)		0.1°F
(0.1°C)		58th Coolest
Coolest since:
1912
71st Warmest
Warmest since:
2021
Ties: 1926, 1947
Jul–Dec 1986
6-Month		47.8°F
(8.8°C)		48.1°F
(8.9°C)		-0.3°F
(-0.1°C)		50th Coolest
Coolest since:
1912
79th Warmest
Warmest since:
2021
Ties: 1941
Jun–Dec 1986
7-Month		50.1°F
(10.1°C)		49.9°F
(9.9°C)		0.2°F
(0.2°C)		65th Coolest
Coolest since:
1912
64th Warmest
Warmest since:
2021
Ties: 1949
May–Dec 1986
8-Month		50.1°F
(10.1°C)		50.0°F
(10.0°C)		0.1°F
(0.1°C)		56th Coolest
Coolest since:
1912
73rd Warmest
Warmest since:
2021
Ties: 1900, 1917, 1944, 1956, 1979
Apr–Dec 1986
9-Month		49.3°F
(9.6°C)		49.1°F
(9.5°C)		0.2°F
(0.1°C)		68th Coolest
Coolest since:
1912
61st Warmest
Warmest since:
2021
Ties: 1952, 1953, 1955, 1976
Mar–Dec 1986
10-Month		48.4°F
(9.1°C)		47.5°F
(8.6°C)		0.9°F
(0.5°C)		86th Coolest
Coolest since:
1912
43rd Warmest
Warmest since:
2012
Ties: 1937, 1980
Feb–Dec 1986
11-Month		46.8°F
(8.2°C)		45.5°F
(7.5°C)		1.3°F
(0.7°C)		96th Coolest
Coolest since:
1912
33rd Warmest
Warmest since:
2017
Jan–Dec 1986
12-Month		45.2°F
(7.3°C)		43.4°F
(6.3°C)		1.8°F
(1.0°C)		107th Coolest
Coolest since:
1895, 1912
22nd Warmest
Warmest since:
2012
Ties: 1995, 2022
Jul 1985–Dec 1986
18-Month		46.0°F
(7.8°C)		45.0°F
(7.2°C)		1.0°F
(0.6°C)		94th Coolest
Coolest since:
1912
34th Warmest
Warmest since:
1934
Ties: 1978, 1980, 1992, 1994, 2008, 2011, 2019
Jan 1985–Dec 1986
24-Month		44.2°F
(6.8°C)		43.4°F
(6.3°C)		0.8°F
(0.5°C)		86th Coolest
Coolest since:
1913
42nd Warmest
Warmest since:
2018
Ties: 1936, 1941, 1991, 1992, 2011
Jan 1984–Dec 1986
36-Month		43.5°F
(6.4°C)		43.4°F
(6.3°C)		0.1°F
(0.1°C)		58th Coolest
Coolest since:
1899, 1913
69th Warmest
Warmest since:
2017
Ties: 1927, 1939, 1945, 1948
Jan 1983–Dec 1986
48-Month		43.6°F
(6.4°C)		43.4°F
(6.3°C)		0.2°F
(0.1°C)		62nd Coolest
Coolest since:
1898
64th Warmest
Warmest since:
2018
Jan 1982–Dec 1986
60-Month		43.5°F
(6.4°C)		43.4°F
(6.3°C)		0.1°F
(0.1°C)		56th Coolest
Coolest since:
1899
69th Warmest
Warmest since:
2018
Ties: 1934, 1946, 1955, 1966

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