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 1902

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
December 1902
1-Month		20.4°F
(-6.4°C)		23.0°F
(-5.0°C)		-2.6°F
(-1.4°C)		32nd Coolest
Coolest since:
1909
97th Warmest
Warmest since:
1980
Ties: 1918
Nov–Dec 1902
2-Month		26.0°F
(-3.3°C)		27.5°F
(-2.5°C)		-1.5°F
(-0.8°C)		35th Coolest
Coolest since:
1895
94th Warmest
Warmest since:
2017
Oct–Dec 1902
3-Month		32.5°F
(0.3°C)		33.5°F
(0.8°C)		-1.0°F
(-0.5°C)		40th Coolest
Coolest since:
1898
89th Warmest
Warmest since:
1950, 2017
Ties: 1970
Sep–Dec 1902
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, 1918, 1982, 1984
Aug–Dec 1902
5-Month		43.3°F
(6.3°C)		44.3°F
(6.8°C)		-1.0°F
(-0.5°C)		28th Coolest
Coolest since:
1912
101st Warmest
Warmest since:
2021
Ties: 1897, 1927
Jul–Dec 1902
6-Month		46.6°F
(8.1°C)		48.1°F
(8.9°C)		-1.5°F
(-0.8°C)		16th Coolest
Coolest since:
1912
113th Warmest
Warmest since:
2021
Ties: 1909, 1913, 1932, 1993
Jun–Dec 1902
7-Month		48.8°F
(9.3°C)		49.9°F
(9.9°C)		-1.1°F
(-0.6°C)		26th Coolest
Coolest since:
1912
103rd Warmest
Warmest since:
2021
Ties: 1945
May–Dec 1902
8-Month		49.1°F
(9.5°C)		50.0°F
(10.0°C)		-0.9°F
(-0.5°C)		25th Coolest
Coolest since:
1912
104th Warmest
Warmest since:
2021
Ties: 1957
Apr–Dec 1902
9-Month		48.3°F
(9.1°C)		49.1°F
(9.5°C)		-0.8°F
(-0.4°C)		30th Coolest
Coolest since:
1912
99th Warmest
Warmest since:
2021
Ties: 1915, 1927, 1961
Mar–Dec 1902
10-Month		46.4°F
(8.0°C)		47.5°F
(8.6°C)		-1.1°F
(-0.6°C)		21st Coolest
Coolest since:
1912
108th Warmest
Warmest since:
2012
Ties: 1897, 1905, 1929, 1930, 1964, 1970
Feb–Dec 1902
11-Month		44.8°F
(7.1°C)		45.5°F
(7.5°C)		-0.7°F
(-0.4°C)		36th Coolest
Coolest since:
1912
93rd Warmest
Warmest since:
2017
Ties: 1906, 1922, 1928, 1930, 1982
Jan–Dec 1902
12-Month		43.0°F
(6.1°C)		43.4°F
(6.3°C)		-0.4°F
(-0.2°C)		44th Coolest
Coolest since:
1895, 1912
85th Warmest
Warmest since:
2012
Ties: 1914, 1957
Jul 1901–Dec 1902
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: 1918, 1983
Jan 1901–Dec 1902
24-Month		43.5°F
(6.4°C)		43.4°F
(6.3°C)		0.1°F
(0.1°C)		59th Coolest
Coolest since:
1913
69th Warmest
Warmest since:
2018
Ties: 1961, 1970
Jan 1900–Dec 1902
36-Month		43.7°F
(6.5°C)		43.4°F
(6.3°C)		0.3°F
(0.2°C)		72nd Coolest
Coolest since:
1899, 1913
55th Warmest
Warmest to Date
2017
Ties: 1937, 1938, 1943, 1947, 1962, 1980, 1993
Jan 1899–Dec 1902
48-Month		43.2°F
(6.2°C)		43.4°F
(6.3°C)		-0.2°F
(-0.1°C)		46th Coolest
Coolest since:
1898
80th Warmest
Warmest to Date
2018
Ties: 1953, 1970
Jan 1898–Dec 1902
60-Month		42.8°F
(6.0°C)		43.4°F
(6.3°C)		-0.6°F
(-0.3°C)		25th Coolest
Coolest since:
1899
100th Warmest
Warmest to Date
2018
Ties: 1903, 1922, 1925, 1930, 1952, 1968, 1975

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