Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. 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 1950

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 1950
1-Month
29.2°F
(-1.6°C)
23.0°F
(-5.0°C)
6.2°F
(3.4°C)
124th Coolest
Coolest since:
1909
5th Warmest
Warmest since:
1980
Ties: 2017
Nov–Dec 1950
2-Month
31.9°F
(-0.1°C)
27.5°F
(-2.5°C)
4.4°F
(2.4°C)
121st Coolest
Coolest since:
1895
8th Warmest
Warmest since:
2017
Oct–Dec 1950
3-Month
38.1°F
(3.4°C)
33.5°F
(0.8°C)
4.6°F
(2.6°C)
128th Coolest
Coolest since:
1898
1st Warmest
Warmest to Date
1950, 2017
Ties: 2017
Sep–Dec 1950
4-Month
42.5°F
(5.8°C)
39.2°F
(4.0°C)
3.3°F
(1.8°C)
125th Coolest
Coolest since:
1898, 1912
4th Warmest
Warmest since:
2021
Ties: 2014, 2016
Aug–Dec 1950
5-Month
46.5°F
(8.1°C)
44.3°F
(6.8°C)
2.2°F
(1.3°C)
111th Coolest
Coolest since:
1912
18th Warmest
Warmest since:
2021
Ties: 1937, 1962, 1998, 1999
Jul–Dec 1950
6-Month
49.5°F
(9.7°C)
48.1°F
(8.9°C)
1.4°F
(0.8°C)
96th Coolest
Coolest since:
1912
33rd Warmest
Warmest since:
2021
Ties: 1989, 2011, 2019
Jun–Dec 1950
7-Month
50.9°F
(10.5°C)
49.9°F
(9.9°C)
1.0°F
(0.6°C)
86th Coolest
Coolest since:
1912
43rd Warmest
Warmest since:
2021
Ties: 1936, 1960, 2000
May–Dec 1950
8-Month
50.5°F
(10.3°C)
50.0°F
(10.0°C)
0.5°F
(0.3°C)
74th Coolest
Coolest since:
1912
55th Warmest
Warmest since:
2021
Ties: 1953, 1969, 2019
Apr–Dec 1950
9-Month
49.6°F
(9.8°C)
49.1°F
(9.5°C)
0.5°F
(0.3°C)
73rd Coolest
Coolest since:
1912
56th Warmest
Warmest since:
2021
Ties: 1985, 2011
Mar–Dec 1950
10-Month
47.9°F
(8.8°C)
47.5°F
(8.6°C)
0.4°F
(0.2°C)
71st Coolest
Coolest since:
1912
58th Warmest
Warmest since:
2012
Ties: 1900, 1926, 1985, 2009
Feb–Dec 1950
11-Month
45.9°F
(7.7°C)
45.5°F
(7.5°C)
0.4°F
(0.2°C)
77th Coolest
Coolest since:
1912
52nd Warmest
Warmest since:
2017
Ties: 1900, 1937, 1947, 1960, 1972, 1991, 1997
Jan–Dec 1950
12-Month
43.7°F
(6.5°C)
43.4°F
(6.3°C)
0.3°F
(0.2°C)
68th Coolest
Coolest since:
1895, 1912
61st Warmest
Warmest since:
2012
Ties: 1938, 1947, 1956, 1960, 2008
Jul 1949–Dec 1950
18-Month
45.4°F
(7.4°C)
45.0°F
(7.2°C)
0.4°F
(0.2°C)
76th Coolest
Coolest since:
1912
52nd Warmest
Warmest since:
1934
Ties: 1910, 1946, 1967
Jan 1949–Dec 1950
24-Month
43.1°F
(6.2°C)
43.4°F
(6.3°C)
-0.3°F
(-0.1°C)
43rd Coolest
Coolest since:
1913
85th Warmest
Warmest since:
2018
Ties: 1928, 1942, 1948, 1979
Jan 1948–Dec 1950
36-Month
43.0°F
(6.1°C)
43.5°F
(6.4°C)
-0.5°F
(-0.3°C)
37th Coolest
Coolest since:
1899, 1913
90th Warmest
Warmest since:
2017
Ties: 1907, 1922, 1923, 1926, 1957, 1970, 1974
Jan 1947–Dec 1950
48-Month
43.1°F
(6.2°C)
43.4°F
(6.3°C)
-0.3°F
(-0.1°C)
42nd Coolest
Coolest since:
1898
84th Warmest
Warmest since:
2018
Ties: 1907, 1927, 1968
Jan 1946–Dec 1950
60-Month
43.4°F
(6.3°C)
43.4°F
(6.3°C)
0.0°F
(0.0°C)
52nd Coolest
Coolest since:
1899
73rd Warmest
Warmest since:
2018
Ties: 1965, 1967, 1979

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