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 1948

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
December 1948
1-Month 		22.2°F
(-5.4°C)		 23.0°F
(-5.0°C)		 -0.8°F
(-0.4°C)		 47th Coolest
Coolest since:
 1909
82nd Warmest
Warmest since:
 1980
Nov–Dec 1948
2-Month 		24.5°F
(-4.2°C)		 27.5°F
(-2.5°C)		 -3.0°F
(-1.7°C)		 18th Coolest
Coolest since:
 1895
111th Warmest
Warmest since:
 2017
Ties: 1956
Oct–Dec 1948
3-Month 		31.5°F
(-0.3°C)		 33.5°F
(0.8°C)		 -2.0°F
(-1.1°C)		 19th Coolest
Coolest since:
 1898
110th Warmest
Warmest since:
 1950, 2017
Ties: 1897, 1913, 1920
Sep–Dec 1948
4-Month 		38.5°F
(3.6°C)		 39.2°F
(4.0°C)		 -0.7°F
(-0.4°C)		 36th Coolest
Coolest since:
 1898, 1912
93rd Warmest
Warmest since:
 2021
Ties: 1957
Aug–Dec 1948
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, 1957, 1970, 1975, 1984
Jul–Dec 1948
6-Month 		47.5°F
(8.6°C)		 48.1°F
(8.9°C)		 -0.6°F
(-0.3°C)		 36th Coolest
Coolest since:
 1912
93rd Warmest
Warmest since:
 2021
Ties: 1900, 1925, 1957
Jun–Dec 1948
7-Month 		49.3°F
(9.6°C)		 49.9°F
(9.9°C)		 -0.6°F
(-0.3°C)		 39th Coolest
Coolest since:
 1912
90th Warmest
Warmest since:
 2021
Ties: 1896, 1918, 1941, 1970, 1978, 1992
May–Dec 1948
8-Month 		49.7°F
(9.8°C)		 50.0°F
(10.0°C)		 -0.3°F
(-0.2°C)		 44th Coolest
Coolest since:
 1912
85th Warmest
Warmest since:
 2021
Ties: 1938, 1941, 1970
Apr–Dec 1948
9-Month 		48.9°F
(9.4°C)		 49.1°F
(9.5°C)		 -0.2°F
(-0.1°C)		 52nd Coolest
Coolest since:
 1912
77th Warmest
Warmest since:
 2021
Ties: 1938
Mar–Dec 1948
10-Month 		46.7°F
(8.2°C)		 47.5°F
(8.6°C)		 -0.8°F
(-0.4°C)		 31st Coolest
Coolest since:
 1912
98th Warmest
Warmest since:
 2012
Ties: 1896, 1915, 1928, 1957, 1973
Feb–Dec 1948
11-Month 		44.6°F
(7.0°C)		 45.5°F
(7.5°C)		 -0.9°F
(-0.5°C)		 30th Coolest
Coolest since:
 1912
99th Warmest
Warmest since:
 2017
Ties: 1896
Jan–Dec 1948
12-Month 		42.6°F
(5.9°C)		 43.4°F
(6.3°C)		 -0.8°F
(-0.4°C)		 32nd Coolest
Coolest since:
 1895, 1912
97th Warmest
Warmest since:
 2012
Ties: 1911, 1951
Jul 1947–Dec 1948
18-Month 		44.5°F
(6.9°C)		 45.0°F
(7.2°C)		 -0.5°F
(-0.3°C)		 37th Coolest
Coolest since:
 1912
91st Warmest
Warmest since:
 1934
Ties: 1904, 1942
Jan 1947–Dec 1948
24-Month 		43.1°F
(6.2°C)		 43.4°F
(6.3°C)		 -0.3°F
(-0.1°C)		 42nd Coolest
Coolest since:
 1913
86th Warmest
Warmest since:
 2018
Ties: 1928, 1942, 1950, 1971, 1979
Jan 1946–Dec 1948
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, 1986
Jan 1945–Dec 1948
48-Month 		43.4°F
(6.3°C)		 43.4°F
(6.3°C)		 0.0°F
(0.0°C)		 53rd Coolest
Coolest since:
 1898
73rd Warmest
Warmest since:
 2018
Ties: 1928, 1944, 1947, 1965
Jan 1944–Dec 1948
60-Month 		43.2°F
(6.2°C)		 43.4°F
(6.3°C)		 -0.2°F
(-0.1°C)		 45th Coolest
Coolest since:
 1899
80th Warmest
Warmest since:
 2018
Ties: 1949, 1969, 1972, 1977

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